97 TJ 2.5L performance parts
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
K&N Stuff. I have the complete test if someone wants it.
http://s112.photobucket.com/albums/n...ilter%20Tests/
The most function part in the kit is the shiny new sticker which you can get
for free.
"The Merg" <greg.mergner@REMOVEgmail.com> wrote in message
news:es5d8f$qkp$1@aioe.org...
> The TJ is MPI.
> Regear first, and look into the catback second. The other stuff won't
> give you help in the rpm range in which you actually drive.
> If Billy Ray is around, he could show you some info on the K&N - the only
> improvement is above 5k rpm IIRC, where you'll almost never have your Jeep
> engine.
>
> hammertc2000@yahoo.com wrote:
>> On Feb 28, 7:28 pm, "Matt Macchiarolo" <m...@nospamplease.com> wrote:
>>> <hammertc2...@yahoo.com> wrote in message
>>>
>>> news:1172705919.922673.53760@v33g2000cwv.googlegro ups.com...
>>>
>>>> On Feb 27, 11:08 pm, "Earle Horton" <a...@gracioso.usa> wrote:
>>> If I were you I would re-gear first.
>>>
>>>
>>>
>>>> Thank you Earle and others. I think I know what I need to do. At
>>>> today's gas prices any mod I do that actually increase mileage will
>>>> payback in no time. Also, if I can get even close to stock
>>>> performanceby regearing it would be worth it. Even now my TJ is very
>>>> drivable around town. I foresee my offroading to be mainly limited to
>>>> the beach although no guarantees!
>>>> I will start with the 4.0 throttle body mod first (relatively cheap)
>>>> and see what happens. Then I'll add the cat-back..see what happens.
>>>> Then I will regear....see what happens.
>>>> I'll post results after each mod for reference.
>>>> I kinda like Bill ------ post regarding the V8 or vortex....I'm
>>>> considering that for when/if I blow-up the 4-banger or drive train.
>>>> Y'all been a great help.
>>>> Again, Thank you!
>>>> TJ
>>
>> Well, I just now looked at the intake system (pulled it apart). I
>> don't see how a spacer could work. The fuel is being injected after
>> the throttle-body. I thought the fuel was injected at the throttle-
>> body. Looks to be "multi-point" at each cylinder. Don't think I can
>> improve that. The air intake system(filter, tubes, boxes)
>> is..well..scary looking. I can see where a K&N type intake would help
>> get air in better that the stock system. But, I will consider the cat-
>> back first to get the air out more efficiently.
>> Matt: you are saying you'd regear first. Do you think once I regear I
>> won't need to do anything else?
>> TJ
>>
http://s112.photobucket.com/albums/n...ilter%20Tests/
The most function part in the kit is the shiny new sticker which you can get
for free.
"The Merg" <greg.mergner@REMOVEgmail.com> wrote in message
news:es5d8f$qkp$1@aioe.org...
> The TJ is MPI.
> Regear first, and look into the catback second. The other stuff won't
> give you help in the rpm range in which you actually drive.
> If Billy Ray is around, he could show you some info on the K&N - the only
> improvement is above 5k rpm IIRC, where you'll almost never have your Jeep
> engine.
>
> hammertc2000@yahoo.com wrote:
>> On Feb 28, 7:28 pm, "Matt Macchiarolo" <m...@nospamplease.com> wrote:
>>> <hammertc2...@yahoo.com> wrote in message
>>>
>>> news:1172705919.922673.53760@v33g2000cwv.googlegro ups.com...
>>>
>>>> On Feb 27, 11:08 pm, "Earle Horton" <a...@gracioso.usa> wrote:
>>> If I were you I would re-gear first.
>>>
>>>
>>>
>>>> Thank you Earle and others. I think I know what I need to do. At
>>>> today's gas prices any mod I do that actually increase mileage will
>>>> payback in no time. Also, if I can get even close to stock
>>>> performanceby regearing it would be worth it. Even now my TJ is very
>>>> drivable around town. I foresee my offroading to be mainly limited to
>>>> the beach although no guarantees!
>>>> I will start with the 4.0 throttle body mod first (relatively cheap)
>>>> and see what happens. Then I'll add the cat-back..see what happens.
>>>> Then I will regear....see what happens.
>>>> I'll post results after each mod for reference.
>>>> I kinda like Bill ------ post regarding the V8 or vortex....I'm
>>>> considering that for when/if I blow-up the 4-banger or drive train.
>>>> Y'all been a great help.
>>>> Again, Thank you!
>>>> TJ
>>
>> Well, I just now looked at the intake system (pulled it apart). I
>> don't see how a spacer could work. The fuel is being injected after
>> the throttle-body. I thought the fuel was injected at the throttle-
>> body. Looks to be "multi-point" at each cylinder. Don't think I can
>> improve that. The air intake system(filter, tubes, boxes)
>> is..well..scary looking. I can see where a K&N type intake would help
>> get air in better that the stock system. But, I will consider the cat-
>> back first to get the air out more efficiently.
>> Matt: you are saying you'd regear first. Do you think once I regear I
>> won't need to do anything else?
>> TJ
>>
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
K&N Stuff. I have the complete test if someone wants it.
http://s112.photobucket.com/albums/n...ilter%20Tests/
The most function part in the kit is the shiny new sticker which you can get
for free.
"The Merg" <greg.mergner@REMOVEgmail.com> wrote in message
news:es5d8f$qkp$1@aioe.org...
> The TJ is MPI.
> Regear first, and look into the catback second. The other stuff won't
> give you help in the rpm range in which you actually drive.
> If Billy Ray is around, he could show you some info on the K&N - the only
> improvement is above 5k rpm IIRC, where you'll almost never have your Jeep
> engine.
>
> hammertc2000@yahoo.com wrote:
>> On Feb 28, 7:28 pm, "Matt Macchiarolo" <m...@nospamplease.com> wrote:
>>> <hammertc2...@yahoo.com> wrote in message
>>>
>>> news:1172705919.922673.53760@v33g2000cwv.googlegro ups.com...
>>>
>>>> On Feb 27, 11:08 pm, "Earle Horton" <a...@gracioso.usa> wrote:
>>> If I were you I would re-gear first.
>>>
>>>
>>>
>>>> Thank you Earle and others. I think I know what I need to do. At
>>>> today's gas prices any mod I do that actually increase mileage will
>>>> payback in no time. Also, if I can get even close to stock
>>>> performanceby regearing it would be worth it. Even now my TJ is very
>>>> drivable around town. I foresee my offroading to be mainly limited to
>>>> the beach although no guarantees!
>>>> I will start with the 4.0 throttle body mod first (relatively cheap)
>>>> and see what happens. Then I'll add the cat-back..see what happens.
>>>> Then I will regear....see what happens.
>>>> I'll post results after each mod for reference.
>>>> I kinda like Bill ------ post regarding the V8 or vortex....I'm
>>>> considering that for when/if I blow-up the 4-banger or drive train.
>>>> Y'all been a great help.
>>>> Again, Thank you!
>>>> TJ
>>
>> Well, I just now looked at the intake system (pulled it apart). I
>> don't see how a spacer could work. The fuel is being injected after
>> the throttle-body. I thought the fuel was injected at the throttle-
>> body. Looks to be "multi-point" at each cylinder. Don't think I can
>> improve that. The air intake system(filter, tubes, boxes)
>> is..well..scary looking. I can see where a K&N type intake would help
>> get air in better that the stock system. But, I will consider the cat-
>> back first to get the air out more efficiently.
>> Matt: you are saying you'd regear first. Do you think once I regear I
>> won't need to do anything else?
>> TJ
>>
http://s112.photobucket.com/albums/n...ilter%20Tests/
The most function part in the kit is the shiny new sticker which you can get
for free.
"The Merg" <greg.mergner@REMOVEgmail.com> wrote in message
news:es5d8f$qkp$1@aioe.org...
> The TJ is MPI.
> Regear first, and look into the catback second. The other stuff won't
> give you help in the rpm range in which you actually drive.
> If Billy Ray is around, he could show you some info on the K&N - the only
> improvement is above 5k rpm IIRC, where you'll almost never have your Jeep
> engine.
>
> hammertc2000@yahoo.com wrote:
>> On Feb 28, 7:28 pm, "Matt Macchiarolo" <m...@nospamplease.com> wrote:
>>> <hammertc2...@yahoo.com> wrote in message
>>>
>>> news:1172705919.922673.53760@v33g2000cwv.googlegro ups.com...
>>>
>>>> On Feb 27, 11:08 pm, "Earle Horton" <a...@gracioso.usa> wrote:
>>> If I were you I would re-gear first.
>>>
>>>
>>>
>>>> Thank you Earle and others. I think I know what I need to do. At
>>>> today's gas prices any mod I do that actually increase mileage will
>>>> payback in no time. Also, if I can get even close to stock
>>>> performanceby regearing it would be worth it. Even now my TJ is very
>>>> drivable around town. I foresee my offroading to be mainly limited to
>>>> the beach although no guarantees!
>>>> I will start with the 4.0 throttle body mod first (relatively cheap)
>>>> and see what happens. Then I'll add the cat-back..see what happens.
>>>> Then I will regear....see what happens.
>>>> I'll post results after each mod for reference.
>>>> I kinda like Bill ------ post regarding the V8 or vortex....I'm
>>>> considering that for when/if I blow-up the 4-banger or drive train.
>>>> Y'all been a great help.
>>>> Again, Thank you!
>>>> TJ
>>
>> Well, I just now looked at the intake system (pulled it apart). I
>> don't see how a spacer could work. The fuel is being injected after
>> the throttle-body. I thought the fuel was injected at the throttle-
>> body. Looks to be "multi-point" at each cylinder. Don't think I can
>> improve that. The air intake system(filter, tubes, boxes)
>> is..well..scary looking. I can see where a K&N type intake would help
>> get air in better that the stock system. But, I will consider the cat-
>> back first to get the air out more efficiently.
>> Matt: you are saying you'd regear first. Do you think once I regear I
>> won't need to do anything else?
>> TJ
>>
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
You have to be careful. If you buy enough of those 'wonder products' your
fuel tank will start overflowing and become an environmental and fire
hazard.
"Earle Horton" <apodo@gracioso.usa> wrote in message
news:MI-dneaM9Z9c3XvYnZ2dnUVZ_hGdnZ2d@comcast.com...
> How about this stuff?
>
> http://www.tornadoair.com/
> http://www.economizadores.net/super/index.html
> http://www.fuelsaver2u.com/
>
> Earle
>
> "L.W. (Bill) ------ III" <----------@***.net> wrote in message
> news:45e62efc$0$16409$88260bb3@free.teranews.com.. .
>> Don't waste your money on the throttle body spacer, just make sure
>> you
>> check and replace spark plugs and air filter frequently.
>> God Bless America, Bill 0||||||
>> mailto:-------------------- http://www.----------.com/
>> >
>> > Thank you Earle and others. I think I know what I need to do. At
>> > today's gas prices any mod I do that actually increase mileage will
>> > payback in no time. Also, if I can get even close to stock
>> > performance by regearing it would be worth it. Even now my TJ is very
>> > drivable around town. I foresee my offroading to be mainly limited to
>> > the beach although no guarantees!
>> > I will start with the 4.0 throttle body mod first (relatively cheap)
>> > and see what happens. Then I'll add the cat-back..see what happens.
>> > Then I will regear....see what happens.
>> > I'll post results after each mod for reference.
>> > I kinda like Bill ------ post regarding the V8 or vortex....I'm
>> > considering that for when/if I blow-up the 4-banger or drive train.
>> > Y'all been a great help.
>> > Again, Thank you!
>> > TJ
>> >
>>
>>
>>
>> --
>> Posted via a free Usenet account from http://www.teranews.com
>>
>
>
>
fuel tank will start overflowing and become an environmental and fire
hazard.
"Earle Horton" <apodo@gracioso.usa> wrote in message
news:MI-dneaM9Z9c3XvYnZ2dnUVZ_hGdnZ2d@comcast.com...
> How about this stuff?
>
> http://www.tornadoair.com/
> http://www.economizadores.net/super/index.html
> http://www.fuelsaver2u.com/
>
> Earle
>
> "L.W. (Bill) ------ III" <----------@***.net> wrote in message
> news:45e62efc$0$16409$88260bb3@free.teranews.com.. .
>> Don't waste your money on the throttle body spacer, just make sure
>> you
>> check and replace spark plugs and air filter frequently.
>> God Bless America, Bill 0||||||
>> mailto:-------------------- http://www.----------.com/
>> >
>> > Thank you Earle and others. I think I know what I need to do. At
>> > today's gas prices any mod I do that actually increase mileage will
>> > payback in no time. Also, if I can get even close to stock
>> > performance by regearing it would be worth it. Even now my TJ is very
>> > drivable around town. I foresee my offroading to be mainly limited to
>> > the beach although no guarantees!
>> > I will start with the 4.0 throttle body mod first (relatively cheap)
>> > and see what happens. Then I'll add the cat-back..see what happens.
>> > Then I will regear....see what happens.
>> > I'll post results after each mod for reference.
>> > I kinda like Bill ------ post regarding the V8 or vortex....I'm
>> > considering that for when/if I blow-up the 4-banger or drive train.
>> > Y'all been a great help.
>> > Again, Thank you!
>> > TJ
>> >
>>
>>
>>
>> --
>> Posted via a free Usenet account from http://www.teranews.com
>>
>
>
>
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
You have to be careful. If you buy enough of those 'wonder products' your
fuel tank will start overflowing and become an environmental and fire
hazard.
"Earle Horton" <apodo@gracioso.usa> wrote in message
news:MI-dneaM9Z9c3XvYnZ2dnUVZ_hGdnZ2d@comcast.com...
> How about this stuff?
>
> http://www.tornadoair.com/
> http://www.economizadores.net/super/index.html
> http://www.fuelsaver2u.com/
>
> Earle
>
> "L.W. (Bill) ------ III" <----------@***.net> wrote in message
> news:45e62efc$0$16409$88260bb3@free.teranews.com.. .
>> Don't waste your money on the throttle body spacer, just make sure
>> you
>> check and replace spark plugs and air filter frequently.
>> God Bless America, Bill 0||||||
>> mailto:-------------------- http://www.----------.com/
>> >
>> > Thank you Earle and others. I think I know what I need to do. At
>> > today's gas prices any mod I do that actually increase mileage will
>> > payback in no time. Also, if I can get even close to stock
>> > performance by regearing it would be worth it. Even now my TJ is very
>> > drivable around town. I foresee my offroading to be mainly limited to
>> > the beach although no guarantees!
>> > I will start with the 4.0 throttle body mod first (relatively cheap)
>> > and see what happens. Then I'll add the cat-back..see what happens.
>> > Then I will regear....see what happens.
>> > I'll post results after each mod for reference.
>> > I kinda like Bill ------ post regarding the V8 or vortex....I'm
>> > considering that for when/if I blow-up the 4-banger or drive train.
>> > Y'all been a great help.
>> > Again, Thank you!
>> > TJ
>> >
>>
>>
>>
>> --
>> Posted via a free Usenet account from http://www.teranews.com
>>
>
>
>
fuel tank will start overflowing and become an environmental and fire
hazard.
"Earle Horton" <apodo@gracioso.usa> wrote in message
news:MI-dneaM9Z9c3XvYnZ2dnUVZ_hGdnZ2d@comcast.com...
> How about this stuff?
>
> http://www.tornadoair.com/
> http://www.economizadores.net/super/index.html
> http://www.fuelsaver2u.com/
>
> Earle
>
> "L.W. (Bill) ------ III" <----------@***.net> wrote in message
> news:45e62efc$0$16409$88260bb3@free.teranews.com.. .
>> Don't waste your money on the throttle body spacer, just make sure
>> you
>> check and replace spark plugs and air filter frequently.
>> God Bless America, Bill 0||||||
>> mailto:-------------------- http://www.----------.com/
>> >
>> > Thank you Earle and others. I think I know what I need to do. At
>> > today's gas prices any mod I do that actually increase mileage will
>> > payback in no time. Also, if I can get even close to stock
>> > performance by regearing it would be worth it. Even now my TJ is very
>> > drivable around town. I foresee my offroading to be mainly limited to
>> > the beach although no guarantees!
>> > I will start with the 4.0 throttle body mod first (relatively cheap)
>> > and see what happens. Then I'll add the cat-back..see what happens.
>> > Then I will regear....see what happens.
>> > I'll post results after each mod for reference.
>> > I kinda like Bill ------ post regarding the V8 or vortex....I'm
>> > considering that for when/if I blow-up the 4-banger or drive train.
>> > Y'all been a great help.
>> > Again, Thank you!
>> > TJ
>> >
>>
>>
>>
>> --
>> Posted via a free Usenet account from http://www.teranews.com
>>
>
>
>
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
You have to be careful. If you buy enough of those 'wonder products' your
fuel tank will start overflowing and become an environmental and fire
hazard.
"Earle Horton" <apodo@gracioso.usa> wrote in message
news:MI-dneaM9Z9c3XvYnZ2dnUVZ_hGdnZ2d@comcast.com...
> How about this stuff?
>
> http://www.tornadoair.com/
> http://www.economizadores.net/super/index.html
> http://www.fuelsaver2u.com/
>
> Earle
>
> "L.W. (Bill) ------ III" <----------@***.net> wrote in message
> news:45e62efc$0$16409$88260bb3@free.teranews.com.. .
>> Don't waste your money on the throttle body spacer, just make sure
>> you
>> check and replace spark plugs and air filter frequently.
>> God Bless America, Bill 0||||||
>> mailto:-------------------- http://www.----------.com/
>> >
>> > Thank you Earle and others. I think I know what I need to do. At
>> > today's gas prices any mod I do that actually increase mileage will
>> > payback in no time. Also, if I can get even close to stock
>> > performance by regearing it would be worth it. Even now my TJ is very
>> > drivable around town. I foresee my offroading to be mainly limited to
>> > the beach although no guarantees!
>> > I will start with the 4.0 throttle body mod first (relatively cheap)
>> > and see what happens. Then I'll add the cat-back..see what happens.
>> > Then I will regear....see what happens.
>> > I'll post results after each mod for reference.
>> > I kinda like Bill ------ post regarding the V8 or vortex....I'm
>> > considering that for when/if I blow-up the 4-banger or drive train.
>> > Y'all been a great help.
>> > Again, Thank you!
>> > TJ
>> >
>>
>>
>>
>> --
>> Posted via a free Usenet account from http://www.teranews.com
>>
>
>
>
fuel tank will start overflowing and become an environmental and fire
hazard.
"Earle Horton" <apodo@gracioso.usa> wrote in message
news:MI-dneaM9Z9c3XvYnZ2dnUVZ_hGdnZ2d@comcast.com...
> How about this stuff?
>
> http://www.tornadoair.com/
> http://www.economizadores.net/super/index.html
> http://www.fuelsaver2u.com/
>
> Earle
>
> "L.W. (Bill) ------ III" <----------@***.net> wrote in message
> news:45e62efc$0$16409$88260bb3@free.teranews.com.. .
>> Don't waste your money on the throttle body spacer, just make sure
>> you
>> check and replace spark plugs and air filter frequently.
>> God Bless America, Bill 0||||||
>> mailto:-------------------- http://www.----------.com/
>> >
>> > Thank you Earle and others. I think I know what I need to do. At
>> > today's gas prices any mod I do that actually increase mileage will
>> > payback in no time. Also, if I can get even close to stock
>> > performance by regearing it would be worth it. Even now my TJ is very
>> > drivable around town. I foresee my offroading to be mainly limited to
>> > the beach although no guarantees!
>> > I will start with the 4.0 throttle body mod first (relatively cheap)
>> > and see what happens. Then I'll add the cat-back..see what happens.
>> > Then I will regear....see what happens.
>> > I'll post results after each mod for reference.
>> > I kinda like Bill ------ post regarding the V8 or vortex....I'm
>> > considering that for when/if I blow-up the 4-banger or drive train.
>> > Y'all been a great help.
>> > Again, Thank you!
>> > TJ
>> >
>>
>>
>>
>> --
>> Posted via a free Usenet account from http://www.teranews.com
>>
>
>
>
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
Great finds. Thanks.
God Bless America, Bill 0|||||||0
mailto:-------------------- http://www.----------.com/
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf596$45e679a9$422afc51$19224@FUSE.NET...
> K&N Stuff. I have the complete test if someone wants it.
>
>
http://s112.photobucket.com/albums/n...ilter%20Tests/
>
> The most function part in the kit is the shiny new sticker which you can
get
> for free
--
Posted via a free Usenet account from http://www.teranews.com
God Bless America, Bill 0|||||||0
mailto:-------------------- http://www.----------.com/
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf596$45e679a9$422afc51$19224@FUSE.NET...
> K&N Stuff. I have the complete test if someone wants it.
>
>
http://s112.photobucket.com/albums/n...ilter%20Tests/
>
> The most function part in the kit is the shiny new sticker which you can
get
> for free
--
Posted via a free Usenet account from http://www.teranews.com
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
Great finds. Thanks.
God Bless America, Bill 0|||||||0
mailto:-------------------- http://www.----------.com/
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf596$45e679a9$422afc51$19224@FUSE.NET...
> K&N Stuff. I have the complete test if someone wants it.
>
>
http://s112.photobucket.com/albums/n...ilter%20Tests/
>
> The most function part in the kit is the shiny new sticker which you can
get
> for free
--
Posted via a free Usenet account from http://www.teranews.com
God Bless America, Bill 0|||||||0
mailto:-------------------- http://www.----------.com/
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf596$45e679a9$422afc51$19224@FUSE.NET...
> K&N Stuff. I have the complete test if someone wants it.
>
>
http://s112.photobucket.com/albums/n...ilter%20Tests/
>
> The most function part in the kit is the shiny new sticker which you can
get
> for free
--
Posted via a free Usenet account from http://www.teranews.com
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
Great finds. Thanks.
God Bless America, Bill 0|||||||0
mailto:-------------------- http://www.----------.com/
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf596$45e679a9$422afc51$19224@FUSE.NET...
> K&N Stuff. I have the complete test if someone wants it.
>
>
http://s112.photobucket.com/albums/n...ilter%20Tests/
>
> The most function part in the kit is the shiny new sticker which you can
get
> for free
--
Posted via a free Usenet account from http://www.teranews.com
God Bless America, Bill 0|||||||0
mailto:-------------------- http://www.----------.com/
"billy ray" <billy_ray@SPAMfuse.net> wrote in message
news:bf596$45e679a9$422afc51$19224@FUSE.NET...
> K&N Stuff. I have the complete test if someone wants it.
>
>
http://s112.photobucket.com/albums/n...ilter%20Tests/
>
> The most function part in the kit is the shiny new sticker which you can
get
> for free
--
Posted via a free Usenet account from http://www.teranews.com
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
On Feb 28, 6:38 pm, hammertc2...@yahoo.com wrote:
> On Feb 27, 11:08 pm, "Earle Horton" <a...@gracioso.usa> wrote:
>
>
>
> > The 3.73 was for improved gas mileage with the automatic. However, if you
> > put 4.11, 4.56 or even more reduction in it, you will probably get better
> > gas mileage and certainly betterperformance. This is because the "2.5L
> > Power Tech I-4 Engine" actually likes RPMs. Take note of your engine speed
> > on the tach at cruising speed, say 60 or 65 depending on personal style and
> > road conditions. You can afford to have that change to 3,000 rpm and keep
> > or even improve your current fuel economy. If you go over 3,000 you will
> > begin to lose.
>
> > For the math, say you are thinking of going to 4.56 axles and you are
> > currently turning 2,200 rpm at 60, which you find a comfortable speed. This
> > is just a guess. Your new engine speed at 60 after the axle change is going
> > to be 2,200 x (4.56/3.73) or 2,670 rpm, not too shabby. You won't be
> > passing that many people, but it should feel like aperformanceincrease.
> > If your lock-up torque converter is actually working, then you should be
> > able to rely on this calculation too, with no torque converter slippage at
> > highway speeds. An axle ratio change is pretty drastic in terms of expense,
> > but this calculation can show you what to expect. If you elect to change
> > the tire size, you multiply by the old tire size, and divide by the new tire
> > size, to get your new engine speed at a corresponding road speed. Don't
> > forget to have your speedometer adjusted if you try any of these tricks.
>
> > Earle
>
> > <hammertc2...@yahoo.com> wrote in message
>
> >news:1172631630.588048.251420@j27g2000cwj.googleg roups.com...
>
> > > On Feb 27, 6:58 pm, hammertc2...@yahoo.com wrote:
> > > > On Feb 27, 6:33 pm, The Merg <greg.merg...@REMOVEgmail.com> wrote:
>
> > > > > > You got 4.10 with an auto and 3.73 with a stick with a 4 banger in
> > '97.
>
> > > > > ??? This is backwards from pretty much every other year then.
>
> > > > > Scott in Baltimore wrote:
> > > > > >> The 3.73 gears are to make up for the torque converter slippage, I
> > think.
> > > > > >> The electric fan in mine "never" comes on while the vehicle is
> > > > > >> moving. Even
> > > > > >> in city driving or off road, 5 mph is enough to cool the engine.
> > That is
> > > > > >> why you get an electric fan. Of course, it is all wasted if you
> > don't
> > > > > >> set
> > > > > >> the thermostatic fan control properly. You can't blame the
> > > > > >> manufacturer for
> > > > > >> that. They do include proper instructions.
>
> > > > > >> Earle
>
> > > > > > You got 4.10 with an auto and 3.73 with a stick with a 4 banger in
> > '97.
>
> > > > I requested a build sheet from DC which may answer the "as build"
> > > > question.
> > > > I wonder if back in '97 era someone ordered a vehicle they had an
> > > > option to pick certain gearing via a 'package group' or something(?)
>
> > > > I just can't see someone spending $400 to $1000 to regear from 4.10 to
> > > > 3.73. Maybe they had to change both axles for some reason.
>
> > > Just checked and I received the build sheet. Looks like I have the
> > > stock gearing of 3.73.
> > > Here's a portion cut-n-paste from the build sheet:
> > > <snip>
> > > DGA - All 3-Speed Automatic Transmissions
> > > DGDS - 3-Spd. Automatic 30RH Transmission
> > > DHAP - Lock-Up Torque Converter
> > > DHNS - Command-Trac Part Time 4WD System
> > > DJJS - Dana 30/186MM Front Axle
> > > DMEP - 3.73 Axle Ratio
> > > DRJS - Dana M35/194MM Rear Axle
> > > EAAC - All Engines
> > > EPE - 2.5L Power Tech I-4 Engine
> > > <end snip>
>
> > > Also, evidently it had floor mats too. Who knew.:)
> > > TJ
>
> Thank you Earle and others. I think I know what I need to do. At
> today's gas prices any mod I do that actually increase mileage will
> payback in no time. Also, if I can get even close to stockperformanceby regearing it would be worth it. Even now my TJ is very
> drivable around town. I foresee my offroading to be mainly limited to
> the beach although no guarantees!
> I will start with the 4.0 throttle body mod first (relatively cheap)
> and see what happens. Then I'll add the cat-back..see what happens.
> Then I will regear....see what happens.
> I'll post results after each mod for reference.
> I kinda like Bill ------ post regarding the V8 or vortex....I'm
> considering that for when/if I blow-up the 4-banger or drive train.
> Y'all been a great help.
> Again, Thank you!
> TJ
Is there any way to figure how much torque I have at the wheels and
what it will be after a differential gear change? I'm only curious.
TJ
> On Feb 27, 11:08 pm, "Earle Horton" <a...@gracioso.usa> wrote:
>
>
>
> > The 3.73 was for improved gas mileage with the automatic. However, if you
> > put 4.11, 4.56 or even more reduction in it, you will probably get better
> > gas mileage and certainly betterperformance. This is because the "2.5L
> > Power Tech I-4 Engine" actually likes RPMs. Take note of your engine speed
> > on the tach at cruising speed, say 60 or 65 depending on personal style and
> > road conditions. You can afford to have that change to 3,000 rpm and keep
> > or even improve your current fuel economy. If you go over 3,000 you will
> > begin to lose.
>
> > For the math, say you are thinking of going to 4.56 axles and you are
> > currently turning 2,200 rpm at 60, which you find a comfortable speed. This
> > is just a guess. Your new engine speed at 60 after the axle change is going
> > to be 2,200 x (4.56/3.73) or 2,670 rpm, not too shabby. You won't be
> > passing that many people, but it should feel like aperformanceincrease.
> > If your lock-up torque converter is actually working, then you should be
> > able to rely on this calculation too, with no torque converter slippage at
> > highway speeds. An axle ratio change is pretty drastic in terms of expense,
> > but this calculation can show you what to expect. If you elect to change
> > the tire size, you multiply by the old tire size, and divide by the new tire
> > size, to get your new engine speed at a corresponding road speed. Don't
> > forget to have your speedometer adjusted if you try any of these tricks.
>
> > Earle
>
> > <hammertc2...@yahoo.com> wrote in message
>
> >news:1172631630.588048.251420@j27g2000cwj.googleg roups.com...
>
> > > On Feb 27, 6:58 pm, hammertc2...@yahoo.com wrote:
> > > > On Feb 27, 6:33 pm, The Merg <greg.merg...@REMOVEgmail.com> wrote:
>
> > > > > > You got 4.10 with an auto and 3.73 with a stick with a 4 banger in
> > '97.
>
> > > > > ??? This is backwards from pretty much every other year then.
>
> > > > > Scott in Baltimore wrote:
> > > > > >> The 3.73 gears are to make up for the torque converter slippage, I
> > think.
> > > > > >> The electric fan in mine "never" comes on while the vehicle is
> > > > > >> moving. Even
> > > > > >> in city driving or off road, 5 mph is enough to cool the engine.
> > That is
> > > > > >> why you get an electric fan. Of course, it is all wasted if you
> > don't
> > > > > >> set
> > > > > >> the thermostatic fan control properly. You can't blame the
> > > > > >> manufacturer for
> > > > > >> that. They do include proper instructions.
>
> > > > > >> Earle
>
> > > > > > You got 4.10 with an auto and 3.73 with a stick with a 4 banger in
> > '97.
>
> > > > I requested a build sheet from DC which may answer the "as build"
> > > > question.
> > > > I wonder if back in '97 era someone ordered a vehicle they had an
> > > > option to pick certain gearing via a 'package group' or something(?)
>
> > > > I just can't see someone spending $400 to $1000 to regear from 4.10 to
> > > > 3.73. Maybe they had to change both axles for some reason.
>
> > > Just checked and I received the build sheet. Looks like I have the
> > > stock gearing of 3.73.
> > > Here's a portion cut-n-paste from the build sheet:
> > > <snip>
> > > DGA - All 3-Speed Automatic Transmissions
> > > DGDS - 3-Spd. Automatic 30RH Transmission
> > > DHAP - Lock-Up Torque Converter
> > > DHNS - Command-Trac Part Time 4WD System
> > > DJJS - Dana 30/186MM Front Axle
> > > DMEP - 3.73 Axle Ratio
> > > DRJS - Dana M35/194MM Rear Axle
> > > EAAC - All Engines
> > > EPE - 2.5L Power Tech I-4 Engine
> > > <end snip>
>
> > > Also, evidently it had floor mats too. Who knew.:)
> > > TJ
>
> Thank you Earle and others. I think I know what I need to do. At
> today's gas prices any mod I do that actually increase mileage will
> payback in no time. Also, if I can get even close to stockperformanceby regearing it would be worth it. Even now my TJ is very
> drivable around town. I foresee my offroading to be mainly limited to
> the beach although no guarantees!
> I will start with the 4.0 throttle body mod first (relatively cheap)
> and see what happens. Then I'll add the cat-back..see what happens.
> Then I will regear....see what happens.
> I'll post results after each mod for reference.
> I kinda like Bill ------ post regarding the V8 or vortex....I'm
> considering that for when/if I blow-up the 4-banger or drive train.
> Y'all been a great help.
> Again, Thank you!
> TJ
Is there any way to figure how much torque I have at the wheels and
what it will be after a differential gear change? I'm only curious.
TJ
Guest
Posts: n/a
Re: 97 TJ 2.5L performance parts
On Feb 28, 6:38 pm, hammertc2...@yahoo.com wrote:
> On Feb 27, 11:08 pm, "Earle Horton" <a...@gracioso.usa> wrote:
>
>
>
> > The 3.73 was for improved gas mileage with the automatic. However, if you
> > put 4.11, 4.56 or even more reduction in it, you will probably get better
> > gas mileage and certainly betterperformance. This is because the "2.5L
> > Power Tech I-4 Engine" actually likes RPMs. Take note of your engine speed
> > on the tach at cruising speed, say 60 or 65 depending on personal style and
> > road conditions. You can afford to have that change to 3,000 rpm and keep
> > or even improve your current fuel economy. If you go over 3,000 you will
> > begin to lose.
>
> > For the math, say you are thinking of going to 4.56 axles and you are
> > currently turning 2,200 rpm at 60, which you find a comfortable speed. This
> > is just a guess. Your new engine speed at 60 after the axle change is going
> > to be 2,200 x (4.56/3.73) or 2,670 rpm, not too shabby. You won't be
> > passing that many people, but it should feel like aperformanceincrease.
> > If your lock-up torque converter is actually working, then you should be
> > able to rely on this calculation too, with no torque converter slippage at
> > highway speeds. An axle ratio change is pretty drastic in terms of expense,
> > but this calculation can show you what to expect. If you elect to change
> > the tire size, you multiply by the old tire size, and divide by the new tire
> > size, to get your new engine speed at a corresponding road speed. Don't
> > forget to have your speedometer adjusted if you try any of these tricks.
>
> > Earle
>
> > <hammertc2...@yahoo.com> wrote in message
>
> >news:1172631630.588048.251420@j27g2000cwj.googleg roups.com...
>
> > > On Feb 27, 6:58 pm, hammertc2...@yahoo.com wrote:
> > > > On Feb 27, 6:33 pm, The Merg <greg.merg...@REMOVEgmail.com> wrote:
>
> > > > > > You got 4.10 with an auto and 3.73 with a stick with a 4 banger in
> > '97.
>
> > > > > ??? This is backwards from pretty much every other year then.
>
> > > > > Scott in Baltimore wrote:
> > > > > >> The 3.73 gears are to make up for the torque converter slippage, I
> > think.
> > > > > >> The electric fan in mine "never" comes on while the vehicle is
> > > > > >> moving. Even
> > > > > >> in city driving or off road, 5 mph is enough to cool the engine.
> > That is
> > > > > >> why you get an electric fan. Of course, it is all wasted if you
> > don't
> > > > > >> set
> > > > > >> the thermostatic fan control properly. You can't blame the
> > > > > >> manufacturer for
> > > > > >> that. They do include proper instructions.
>
> > > > > >> Earle
>
> > > > > > You got 4.10 with an auto and 3.73 with a stick with a 4 banger in
> > '97.
>
> > > > I requested a build sheet from DC which may answer the "as build"
> > > > question.
> > > > I wonder if back in '97 era someone ordered a vehicle they had an
> > > > option to pick certain gearing via a 'package group' or something(?)
>
> > > > I just can't see someone spending $400 to $1000 to regear from 4.10 to
> > > > 3.73. Maybe they had to change both axles for some reason.
>
> > > Just checked and I received the build sheet. Looks like I have the
> > > stock gearing of 3.73.
> > > Here's a portion cut-n-paste from the build sheet:
> > > <snip>
> > > DGA - All 3-Speed Automatic Transmissions
> > > DGDS - 3-Spd. Automatic 30RH Transmission
> > > DHAP - Lock-Up Torque Converter
> > > DHNS - Command-Trac Part Time 4WD System
> > > DJJS - Dana 30/186MM Front Axle
> > > DMEP - 3.73 Axle Ratio
> > > DRJS - Dana M35/194MM Rear Axle
> > > EAAC - All Engines
> > > EPE - 2.5L Power Tech I-4 Engine
> > > <end snip>
>
> > > Also, evidently it had floor mats too. Who knew.:)
> > > TJ
>
> Thank you Earle and others. I think I know what I need to do. At
> today's gas prices any mod I do that actually increase mileage will
> payback in no time. Also, if I can get even close to stockperformanceby regearing it would be worth it. Even now my TJ is very
> drivable around town. I foresee my offroading to be mainly limited to
> the beach although no guarantees!
> I will start with the 4.0 throttle body mod first (relatively cheap)
> and see what happens. Then I'll add the cat-back..see what happens.
> Then I will regear....see what happens.
> I'll post results after each mod for reference.
> I kinda like Bill ------ post regarding the V8 or vortex....I'm
> considering that for when/if I blow-up the 4-banger or drive train.
> Y'all been a great help.
> Again, Thank you!
> TJ
Is there any way to figure how much torque I have at the wheels and
what it will be after a differential gear change? I'm only curious.
TJ
> On Feb 27, 11:08 pm, "Earle Horton" <a...@gracioso.usa> wrote:
>
>
>
> > The 3.73 was for improved gas mileage with the automatic. However, if you
> > put 4.11, 4.56 or even more reduction in it, you will probably get better
> > gas mileage and certainly betterperformance. This is because the "2.5L
> > Power Tech I-4 Engine" actually likes RPMs. Take note of your engine speed
> > on the tach at cruising speed, say 60 or 65 depending on personal style and
> > road conditions. You can afford to have that change to 3,000 rpm and keep
> > or even improve your current fuel economy. If you go over 3,000 you will
> > begin to lose.
>
> > For the math, say you are thinking of going to 4.56 axles and you are
> > currently turning 2,200 rpm at 60, which you find a comfortable speed. This
> > is just a guess. Your new engine speed at 60 after the axle change is going
> > to be 2,200 x (4.56/3.73) or 2,670 rpm, not too shabby. You won't be
> > passing that many people, but it should feel like aperformanceincrease.
> > If your lock-up torque converter is actually working, then you should be
> > able to rely on this calculation too, with no torque converter slippage at
> > highway speeds. An axle ratio change is pretty drastic in terms of expense,
> > but this calculation can show you what to expect. If you elect to change
> > the tire size, you multiply by the old tire size, and divide by the new tire
> > size, to get your new engine speed at a corresponding road speed. Don't
> > forget to have your speedometer adjusted if you try any of these tricks.
>
> > Earle
>
> > <hammertc2...@yahoo.com> wrote in message
>
> >news:1172631630.588048.251420@j27g2000cwj.googleg roups.com...
>
> > > On Feb 27, 6:58 pm, hammertc2...@yahoo.com wrote:
> > > > On Feb 27, 6:33 pm, The Merg <greg.merg...@REMOVEgmail.com> wrote:
>
> > > > > > You got 4.10 with an auto and 3.73 with a stick with a 4 banger in
> > '97.
>
> > > > > ??? This is backwards from pretty much every other year then.
>
> > > > > Scott in Baltimore wrote:
> > > > > >> The 3.73 gears are to make up for the torque converter slippage, I
> > think.
> > > > > >> The electric fan in mine "never" comes on while the vehicle is
> > > > > >> moving. Even
> > > > > >> in city driving or off road, 5 mph is enough to cool the engine.
> > That is
> > > > > >> why you get an electric fan. Of course, it is all wasted if you
> > don't
> > > > > >> set
> > > > > >> the thermostatic fan control properly. You can't blame the
> > > > > >> manufacturer for
> > > > > >> that. They do include proper instructions.
>
> > > > > >> Earle
>
> > > > > > You got 4.10 with an auto and 3.73 with a stick with a 4 banger in
> > '97.
>
> > > > I requested a build sheet from DC which may answer the "as build"
> > > > question.
> > > > I wonder if back in '97 era someone ordered a vehicle they had an
> > > > option to pick certain gearing via a 'package group' or something(?)
>
> > > > I just can't see someone spending $400 to $1000 to regear from 4.10 to
> > > > 3.73. Maybe they had to change both axles for some reason.
>
> > > Just checked and I received the build sheet. Looks like I have the
> > > stock gearing of 3.73.
> > > Here's a portion cut-n-paste from the build sheet:
> > > <snip>
> > > DGA - All 3-Speed Automatic Transmissions
> > > DGDS - 3-Spd. Automatic 30RH Transmission
> > > DHAP - Lock-Up Torque Converter
> > > DHNS - Command-Trac Part Time 4WD System
> > > DJJS - Dana 30/186MM Front Axle
> > > DMEP - 3.73 Axle Ratio
> > > DRJS - Dana M35/194MM Rear Axle
> > > EAAC - All Engines
> > > EPE - 2.5L Power Tech I-4 Engine
> > > <end snip>
>
> > > Also, evidently it had floor mats too. Who knew.:)
> > > TJ
>
> Thank you Earle and others. I think I know what I need to do. At
> today's gas prices any mod I do that actually increase mileage will
> payback in no time. Also, if I can get even close to stockperformanceby regearing it would be worth it. Even now my TJ is very
> drivable around town. I foresee my offroading to be mainly limited to
> the beach although no guarantees!
> I will start with the 4.0 throttle body mod first (relatively cheap)
> and see what happens. Then I'll add the cat-back..see what happens.
> Then I will regear....see what happens.
> I'll post results after each mod for reference.
> I kinda like Bill ------ post regarding the V8 or vortex....I'm
> considering that for when/if I blow-up the 4-banger or drive train.
> Y'all been a great help.
> Again, Thank you!
> TJ
Is there any way to figure how much torque I have at the wheels and
what it will be after a differential gear change? I'm only curious.
TJ