Re: more power from 4.0
 

noneofyourbusiness wrote:
> On Tue, 13 Mar 2007 18:33:41 -0500, "DougW"
> <post.replies@invalid.address> wrote:
>
>> noneofyourbusiness wrote:
>>
>>>
>>> Thanks, I'll pass the info along.
>>
>> Forgot to add one thing.
>>
>> If the engine has excessive carbon builup
>> that will cause pinging. Usually the plugs
>> will show how bad things are.
>
> He asks what boost-a-pump you used, and if you'd recommend it.
> TIA

Website is in my .sig

It's a Kenne-Bell unit that has an adjustable output and
a fixed >2psi kickoff switch. It splices into the fuel pump
line and increases the voltage. Stock pumps can handle the
increase. You still need a higher pressure regulator to make
it all work, or the excess will simply flow back into the tank.


--
-- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!

Re: more power from 4.0
 

noneofyourbusiness wrote:
> On Tue, 13 Mar 2007 18:33:41 -0500, "DougW"
> <post.replies@invalid.address> wrote:
>
>> noneofyourbusiness wrote:
>>
>>>
>>> Thanks, I'll pass the info along.
>>
>> Forgot to add one thing.
>>
>> If the engine has excessive carbon builup
>> that will cause pinging. Usually the plugs
>> will show how bad things are.
>
> He asks what boost-a-pump you used, and if you'd recommend it.
> TIA

Website is in my .sig

It's a Kenne-Bell unit that has an adjustable output and
a fixed >2psi kickoff switch. It splices into the fuel pump
line and increases the voltage. Stock pumps can handle the
increase. You still need a higher pressure regulator to make
it all work, or the excess will simply flow back into the tank.


--
-- DougW -- 93 ZJ 4.0 http://revbeergoggles.com
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!

Re: more power from 4.0
 

I agree with Bruce, the exhaust system needs work. If you know a good
pipebender at a local muffler shop, you can gain some power for a
reasonable price. Many years ago I put headers and turbo mufflers on
my Monte Carlo (355ci/325hp) and had a complete dual exhaust system
fabricated to fit the car. The gain was amazing. But, to be practical
I would recommend a good exhaust system with a stubby turbo muffler.
Don't even consider a glasspack! A little exhaust sound is ok but blat
blat is very uncool.

Your cheapest horsepower (and gas mileage) gain will come from a good
tuneup with stock spark plugs and new gas and air filters.

You can replace the fan with fiberglass or electric.

Synthetic oil will also help.

You can get into exotic parts, but it gets really expensive

My 4.0 has enough power for me and my HO 4.0 (like yours) has more
than enough power for my needs.

I had considered more horsepower for my commuter car a few years ago.
All I wanted was better 50-70mph passing power. I did most of the
above and wanted a little more. I came to the conclusion that an
electric turbocharger was the right way to go. I suggest you look into
this and decide if you want to spend the money for a little more
power.

Just remember that "cheap horsepower" is an oxymoron.

Merrill


On Mar 13, 8:13 am, "Highcountry" <highcountry2...@hotmail.com> wrote:
> These trucks came from the factory with a VERY restrictive exhaust.
> Mostly the muffler and tailpipe. Some of them even had a 1.875 inch
> tailpipe, which choked the engine at anything above 3,000rpm. I
> installed a replacement muffler that used a 2.250 inch outlet and a
> tailpipe from an older model which was also 2.250 inch. You would
> not believe what it did for my 3,000 to 5,000rpm power.
>
> The NAPA part number for the "Turbo Muffler" I used is 17748 and the
> tailpipe is 44171. You may need a short piece of straight pipe to go
> between the muffler and the convertor, and you will need new clamps to
> attach the tailpipe.
>
> A caution, anything less restrictive than a "turbo muffler" type will
> give you an annoying exhaust sound like some kid driving his ricer
> with a fart pipe.
>
> Bruce

Re: more power from 4.0
 

I agree with Bruce, the exhaust system needs work. If you know a good
pipebender at a local muffler shop, you can gain some power for a
reasonable price. Many years ago I put headers and turbo mufflers on
my Monte Carlo (355ci/325hp) and had a complete dual exhaust system
fabricated to fit the car. The gain was amazing. But, to be practical
I would recommend a good exhaust system with a stubby turbo muffler.
Don't even consider a glasspack! A little exhaust sound is ok but blat
blat is very uncool.

Your cheapest horsepower (and gas mileage) gain will come from a good
tuneup with stock spark plugs and new gas and air filters.

You can replace the fan with fiberglass or electric.

Synthetic oil will also help.

You can get into exotic parts, but it gets really expensive

My 4.0 has enough power for me and my HO 4.0 (like yours) has more
than enough power for my needs.

I had considered more horsepower for my commuter car a few years ago.
All I wanted was better 50-70mph passing power. I did most of the
above and wanted a little more. I came to the conclusion that an
electric turbocharger was the right way to go. I suggest you look into
this and decide if you want to spend the money for a little more
power.

Just remember that "cheap horsepower" is an oxymoron.

Merrill


On Mar 13, 8:13 am, "Highcountry" <highcountry2...@hotmail.com> wrote:
> These trucks came from the factory with a VERY restrictive exhaust.
> Mostly the muffler and tailpipe. Some of them even had a 1.875 inch
> tailpipe, which choked the engine at anything above 3,000rpm. I
> installed a replacement muffler that used a 2.250 inch outlet and a
> tailpipe from an older model which was also 2.250 inch. You would
> not believe what it did for my 3,000 to 5,000rpm power.
>
> The NAPA part number for the "Turbo Muffler" I used is 17748 and the
> tailpipe is 44171. You may need a short piece of straight pipe to go
> between the muffler and the convertor, and you will need new clamps to
> attach the tailpipe.
>
> A caution, anything less restrictive than a "turbo muffler" type will
> give you an annoying exhaust sound like some kid driving his ricer
> with a fart pipe.
>
> Bruce

Re: more power from 4.0
 

I agree with Bruce, the exhaust system needs work. If you know a good
pipebender at a local muffler shop, you can gain some power for a
reasonable price. Many years ago I put headers and turbo mufflers on
my Monte Carlo (355ci/325hp) and had a complete dual exhaust system
fabricated to fit the car. The gain was amazing. But, to be practical
I would recommend a good exhaust system with a stubby turbo muffler.
Don't even consider a glasspack! A little exhaust sound is ok but blat
blat is very uncool.

Your cheapest horsepower (and gas mileage) gain will come from a good
tuneup with stock spark plugs and new gas and air filters.

You can replace the fan with fiberglass or electric.

Synthetic oil will also help.

You can get into exotic parts, but it gets really expensive

My 4.0 has enough power for me and my HO 4.0 (like yours) has more
than enough power for my needs.

I had considered more horsepower for my commuter car a few years ago.
All I wanted was better 50-70mph passing power. I did most of the
above and wanted a little more. I came to the conclusion that an
electric turbocharger was the right way to go. I suggest you look into
this and decide if you want to spend the money for a little more
power.

Just remember that "cheap horsepower" is an oxymoron.

Merrill


On Mar 13, 8:13 am, "Highcountry" <highcountry2...@hotmail.com> wrote:
> These trucks came from the factory with a VERY restrictive exhaust.
> Mostly the muffler and tailpipe. Some of them even had a 1.875 inch
> tailpipe, which choked the engine at anything above 3,000rpm. I
> installed a replacement muffler that used a 2.250 inch outlet and a
> tailpipe from an older model which was also 2.250 inch. You would
> not believe what it did for my 3,000 to 5,000rpm power.
>
> The NAPA part number for the "Turbo Muffler" I used is 17748 and the
> tailpipe is 44171. You may need a short piece of straight pipe to go
> between the muffler and the convertor, and you will need new clamps to
> attach the tailpipe.
>
> A caution, anything less restrictive than a "turbo muffler" type will
> give you an annoying exhaust sound like some kid driving his ricer
> with a fart pipe.
>
> Bruce

Re: more power from 4.0
 

Why do you call it a truck ??

Re: more power from 4.0
 

Why do you call it a truck ??

Re: more power from 4.0
 

Why do you call it a truck ??

Re: more power from 4.0
 

James wrote:
> Why do you call it a truck ??

Because calling it a sports car would just be silly?

:)

--
DougW

Re: more power from 4.0
 

James wrote:
> Why do you call it a truck ??

Because calling it a sports car would just be silly?

:)

--
DougW