Bored throttle body
 

Hey all,

I'm going to be boring my throttle body to 62mm. I have a source for a
butterfly and a throttle plate so that's not a concern. My question:

Am I going to need a MAP sensor upgrade or anything? Anything obvious that
I'm not thinking of?

Thanks,
n.

Re: Bored throttle body
 

2003 TJ, I-6. For what it's worth
n.

"Nathan Otis" <na@spam.smeat.net> wrote in message
news:oLU%b.32698$AL.675692@attbi_s03...
> Hey all,
>
> I'm going to be boring my throttle body to 62mm. I have a source for a
> butterfly and a throttle plate so that's not a concern. My question:
>
> Am I going to need a MAP sensor upgrade or anything? Anything obvious that
> I'm not thinking of?
>
> Thanks,
> n.
>
>

Re: Bored throttle body
 

2003 TJ, I-6. For what it's worth
n.

"Nathan Otis" <na@spam.smeat.net> wrote in message
news:oLU%b.32698$AL.675692@attbi_s03...
> Hey all,
>
> I'm going to be boring my throttle body to 62mm. I have a source for a
> butterfly and a throttle plate so that's not a concern. My question:
>
> Am I going to need a MAP sensor upgrade or anything? Anything obvious that
> I'm not thinking of?
>
> Thanks,
> n.
>
>

Re: Bored throttle body
 

2003 TJ, I-6. For what it's worth
n.

"Nathan Otis" <na@spam.smeat.net> wrote in message
news:oLU%b.32698$AL.675692@attbi_s03...
> Hey all,
>
> I'm going to be boring my throttle body to 62mm. I have a source for a
> butterfly and a throttle plate so that's not a concern. My question:
>
> Am I going to need a MAP sensor upgrade or anything? Anything obvious that
> I'm not thinking of?
>
> Thanks,
> n.
>
>

Re: Bored throttle body
 

Nathan Otis did pass the time by typing:
> "Nathan Otis" wrote...
>> Hey all,
>>
>> I'm going to be boring my throttle body to 62mm. I have a source for a
>> butterfly and a throttle plate so that's not a concern. My question:
>>
>> Am I going to need a MAP sensor upgrade or anything? Anything obvious that
>> I'm not thinking of?

> 2003 TJ, I-6. For what it's worth

Nope, you should be fine.

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors

Re: Bored throttle body
 

Nathan Otis did pass the time by typing:
> "Nathan Otis" wrote...
>> Hey all,
>>
>> I'm going to be boring my throttle body to 62mm. I have a source for a
>> butterfly and a throttle plate so that's not a concern. My question:
>>
>> Am I going to need a MAP sensor upgrade or anything? Anything obvious that
>> I'm not thinking of?

> 2003 TJ, I-6. For what it's worth

Nope, you should be fine.

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors

Re: Bored throttle body
 

Nathan Otis did pass the time by typing:
> "Nathan Otis" wrote...
>> Hey all,
>>
>> I'm going to be boring my throttle body to 62mm. I have a source for a
>> butterfly and a throttle plate so that's not a concern. My question:
>>
>> Am I going to need a MAP sensor upgrade or anything? Anything obvious that
>> I'm not thinking of?

> 2003 TJ, I-6. For what it's worth

Nope, you should be fine.

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors

Re: Bored throttle body
 

don't forget the pictures........

--
Carlo F. Serusa, Jr. RPh
carlo.jr at comcast DOTnet
'98 Sahara TJ - '89 YJ - '79 Scout II
O|||||||O
'92 Explorer '65 Mustang


"DougW" <post.replies@invalid.address> wrote in message
news:6KV%b.14733$1k.12770@okepread01...
> Nathan Otis did pass the time by typing:
> > "Nathan Otis" wrote...
> >> Hey all,
> >>
> >> I'm going to be boring my throttle body to 62mm. I have a source for a
> >> butterfly and a throttle plate so that's not a concern. My question:
> >>
> >> Am I going to need a MAP sensor upgrade or anything? Anything obvious
that
> >> I'm not thinking of?
>
> > 2003 TJ, I-6. For what it's worth
>
> Nope, you should be fine.
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>
>

Re: Bored throttle body
 

don't forget the pictures........

--
Carlo F. Serusa, Jr. RPh
carlo.jr at comcast DOTnet
'98 Sahara TJ - '89 YJ - '79 Scout II
O|||||||O
'92 Explorer '65 Mustang


"DougW" <post.replies@invalid.address> wrote in message
news:6KV%b.14733$1k.12770@okepread01...
> Nathan Otis did pass the time by typing:
> > "Nathan Otis" wrote...
> >> Hey all,
> >>
> >> I'm going to be boring my throttle body to 62mm. I have a source for a
> >> butterfly and a throttle plate so that's not a concern. My question:
> >>
> >> Am I going to need a MAP sensor upgrade or anything? Anything obvious
that
> >> I'm not thinking of?
>
> > 2003 TJ, I-6. For what it's worth
>
> Nope, you should be fine.
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>
>

Re: Bored throttle body
 

don't forget the pictures........

--
Carlo F. Serusa, Jr. RPh
carlo.jr at comcast DOTnet
'98 Sahara TJ - '89 YJ - '79 Scout II
O|||||||O
'92 Explorer '65 Mustang


"DougW" <post.replies@invalid.address> wrote in message
news:6KV%b.14733$1k.12770@okepread01...
> Nathan Otis did pass the time by typing:
> > "Nathan Otis" wrote...
> >> Hey all,
> >>
> >> I'm going to be boring my throttle body to 62mm. I have a source for a
> >> butterfly and a throttle plate so that's not a concern. My question:
> >>
> >> Am I going to need a MAP sensor upgrade or anything? Anything obvious
that
> >> I'm not thinking of?
>
> > 2003 TJ, I-6. For what it's worth
>
> Nope, you should be fine.
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
>
>

Re: Bored throttle body
 

There is some guy over on alt.jeep-l I think that has been trying to
unload one of those for a while now.

I have seen a few for sale, so many it implies the mod doesn't work for
---- so people try it then realize they have ruined a TB so they try to
find some other sucker to buy it when they go back to stock.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Nathan Otis wrote:
>
> Hey all,
>
> I'm going to be boring my throttle body to 62mm. I have a source for a
> butterfly and a throttle plate so that's not a concern. My question:
>
> Am I going to need a MAP sensor upgrade or anything? Anything obvious that
> I'm not thinking of?
>
> Thanks,
> n.

Re: Bored throttle body
 

There is some guy over on alt.jeep-l I think that has been trying to
unload one of those for a while now.

I have seen a few for sale, so many it implies the mod doesn't work for
---- so people try it then realize they have ruined a TB so they try to
find some other sucker to buy it when they go back to stock.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Nathan Otis wrote:
>
> Hey all,
>
> I'm going to be boring my throttle body to 62mm. I have a source for a
> butterfly and a throttle plate so that's not a concern. My question:
>
> Am I going to need a MAP sensor upgrade or anything? Anything obvious that
> I'm not thinking of?
>
> Thanks,
> n.

Re: Bored throttle body
 

There is some guy over on alt.jeep-l I think that has been trying to
unload one of those for a while now.

I have seen a few for sale, so many it implies the mod doesn't work for
---- so people try it then realize they have ruined a TB so they try to
find some other sucker to buy it when they go back to stock.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Nathan Otis wrote:
>
> Hey all,
>
> I'm going to be boring my throttle body to 62mm. I have a source for a
> butterfly and a throttle plate so that's not a concern. My question:
>
> Am I going to need a MAP sensor upgrade or anything? Anything obvious that
> I'm not thinking of?
>
> Thanks,
> n.

Re: Bored throttle body
 

Mike Romain did pass the time by typing:
> There is some guy over on alt.jeep-l I think that has been trying to
> unload one of those for a while now.
>
> I have seen a few for sale, so many it implies the mod doesn't work for
> ---- so people try it then realize they have ruined a TB so they try to
> find some other sucker to buy it when they go back to stock.

The thing about that mod is some folks with 4bangers try a bored over
4.0 throttle body. That only winds up causing a real touchy pedal
with a huge flatspot at the top.

Basically you can't flow any more air than the engine will use and
if you reduce restrictions in the intake you need to do the same to
the exhaust. It's valid but usually paired with engine mods that
require more air, like super/turbocharging or stroking.

--
DougW

Re: Bored throttle body
 

Mike Romain did pass the time by typing:
> There is some guy over on alt.jeep-l I think that has been trying to
> unload one of those for a while now.
>
> I have seen a few for sale, so many it implies the mod doesn't work for
> ---- so people try it then realize they have ruined a TB so they try to
> find some other sucker to buy it when they go back to stock.

The thing about that mod is some folks with 4bangers try a bored over
4.0 throttle body. That only winds up causing a real touchy pedal
with a huge flatspot at the top.

Basically you can't flow any more air than the engine will use and
if you reduce restrictions in the intake you need to do the same to
the exhaust. It's valid but usually paired with engine mods that
require more air, like super/turbocharging or stroking.

--
DougW

Re: Bored throttle body
 

Mike Romain did pass the time by typing:
> There is some guy over on alt.jeep-l I think that has been trying to
> unload one of those for a while now.
>
> I have seen a few for sale, so many it implies the mod doesn't work for
> ---- so people try it then realize they have ruined a TB so they try to
> find some other sucker to buy it when they go back to stock.

The thing about that mod is some folks with 4bangers try a bored over
4.0 throttle body. That only winds up causing a real touchy pedal
with a huge flatspot at the top.

Basically you can't flow any more air than the engine will use and
if you reduce restrictions in the intake you need to do the same to
the exhaust. It's valid but usually paired with engine mods that
require more air, like super/turbocharging or stroking.

--
DougW

Re: Bored throttle body
 

Hi Doug,
With carburetors when we increase the venturi area, we must
increase the jet size, I would be surprised if the computer could
compensate without being reprogramed. Your admission of a dead spot
tells me the stock injectors and computer can't handle less vacuum.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

DougW wrote:
>
> The thing about that mod is some folks with 4bangers try a bored over
> 4.0 throttle body. That only winds up causing a real touchy pedal
> with a huge flatspot at the top.
>
> Basically you can't flow any more air than the engine will use and
> if you reduce restrictions in the intake you need to do the same to
> the exhaust. It's valid but usually paired with engine mods that
> require more air, like super/turbocharging or stroking.
>
> --
> DougW

Re: Bored throttle body
 

Hi Doug,
With carburetors when we increase the venturi area, we must
increase the jet size, I would be surprised if the computer could
compensate without being reprogramed. Your admission of a dead spot
tells me the stock injectors and computer can't handle less vacuum.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

DougW wrote:
>
> The thing about that mod is some folks with 4bangers try a bored over
> 4.0 throttle body. That only winds up causing a real touchy pedal
> with a huge flatspot at the top.
>
> Basically you can't flow any more air than the engine will use and
> if you reduce restrictions in the intake you need to do the same to
> the exhaust. It's valid but usually paired with engine mods that
> require more air, like super/turbocharging or stroking.
>
> --
> DougW

Re: Bored throttle body
 

Hi Doug,
With carburetors when we increase the venturi area, we must
increase the jet size, I would be surprised if the computer could
compensate without being reprogramed. Your admission of a dead spot
tells me the stock injectors and computer can't handle less vacuum.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

DougW wrote:
>
> The thing about that mod is some folks with 4bangers try a bored over
> 4.0 throttle body. That only winds up causing a real touchy pedal
> with a huge flatspot at the top.
>
> Basically you can't flow any more air than the engine will use and
> if you reduce restrictions in the intake you need to do the same to
> the exhaust. It's valid but usually paired with engine mods that
> require more air, like super/turbocharging or stroking.
>
> --
> DougW

Re: Bored throttle body
 

In message <oLU%b.32698$AL.675692@attbi_s03>, "Nathan Otis" wrote:

>Hey all,
>
>I'm going to be boring my throttle body to 62mm. I have a source for a
>butterfly and a throttle plate so that's not a concern. My question:
>
>Am I going to need a MAP sensor upgrade or anything? Anything obvious that
>I'm not thinking of?

Yes, you're wasting your time and money.

>
>Thanks,
>n.
>

Re: Bored throttle body
 

In message <oLU%b.32698$AL.675692@attbi_s03>, "Nathan Otis" wrote:

>Hey all,
>
>I'm going to be boring my throttle body to 62mm. I have a source for a
>butterfly and a throttle plate so that's not a concern. My question:
>
>Am I going to need a MAP sensor upgrade or anything? Anything obvious that
>I'm not thinking of?

Yes, you're wasting your time and money.

>
>Thanks,
>n.
>

Re: Bored throttle body
 

In message <oLU%b.32698$AL.675692@attbi_s03>, "Nathan Otis" wrote:

>Hey all,
>
>I'm going to be boring my throttle body to 62mm. I have a source for a
>butterfly and a throttle plate so that's not a concern. My question:
>
>Am I going to need a MAP sensor upgrade or anything? Anything obvious that
>I'm not thinking of?

Yes, you're wasting your time and money.

>
>Thanks,
>n.
>