Throttle body spacer

[YLWjeep02]

Has anyone used an airraid throttle body spacer? if so is it effective? what are the positives or pitfalls?

I am looking to gain some low end torque on an 02 TJ with 33's

[zeitlerusmc]

4cyl or 6cyl??

[YLWjeep02]

4.0L, wouldnt have it any other way!

[Papa Mo]

I have the airaid throttle body spacer...I did notice a bit more power....but if you dont like noises it does whistle alot...i like that...lets me know its workin :)

[Steve]

What about the 2.5l throttle body spacer? I am looking to add it to mine. Thx

[SavageSun4x4]

Adding the TB to your TJ will certainly produce guaranteed results. It will help when you carry your accordion on your next hunting trip by lightening your wallet thus making the accordion easier to carry.

You might want to read this: http://www.savagesun4x4.com/enter/viewpoints-technical_discus/throttle_body_spacers_tbs_y.html

[YLWjeep02]

SavageSun,

So I guess your saying don't waste my money on the TB?

[pldamian]

What about the 2.5l throttle body spacer? I am looking to add it to mine. Thx


I have one on mine and i got to say not worth the money. Get an electric fan, that's the most effective mod I've put on mine.

[offroadaz]

yep, waste of money
stay away from the KN FIPK too

[Steve]

Why would I need an electric fan? Mine has never even been close to overheating let alone get hot. Thanks for the advice on the TB spacer.

[offroadaz]

Why would I need an electric fan? Mine has never even been close to overheating let alone get hot. Thanks for the advice on the TB spacer.

electric will get rid of the belt driven one. The belt fan uses around 10hp. (i think)

its one of the cheaper 10hp gains you can do

[Steve]

electric will get rid of the belt driven one. The belt fan uses around 10hp. (i think)

its one of the cheaper 10hp gains you can do


Hmmm. I will have to look into that. I've never heard that before. Thanks

[SavageSun4x4]

SavageSun,

So I guess your saying don't waste my money on the TB?

GENERALLY speaking, yes. Some of the earlier years of 4.0 engines will see a small gain. The other option is to use a newer intake manifold. I think the years after 2001 have longer intake runners than the earlier years but I am not positive on the year they were phased in for Wranglers.

electric will get rid of the belt driven one. The belt fan uses around 10hp. (i think)

its one of the cheaper 10hp gains you can do

If I have said this once I have said this a million times...'there ain't no free lunch'.

While many see the e fan as a panacea the fact is you do not gain 10 hp.

Why? http://www.savagesun4x4.com/enter/viewpoints-technical_discus/jeep_cooling_electric_vs_me.html

[offroadaz]

GENERALLY speaking, yes. Some of the earlier years of 4.0 engines will see a small gain. The other option is to use a newer intake manifold. I think the years after 2001 have longer intake runners than the earlier years but I am not positive on the year they were phased in for Wranglers.



If I have said this once I have said this a million times...'there ain't no free lunch'.

While many see the e fan as a panacea the fact is you do not gain 10 hp.

Why? http://www.savagesun4x4.com/enter/viewpoints-technical_discus/jeep_cooling_electric_vs_me.html

each sticker i put on the jeep is good for 10hp gain too. I dont care what your "facts" say

:)

[SavageSun4x4]

each sticker i put on the jeep is good for 10hp gain too. I dont care what your "facts" say

:)
Well under extreme testing it has been found that some stickers add even more:):drummer:

[YLWjeep02]

How bout exhaust? Any impact other than the throaty sound it creates? It will make the engine breath better, but does it make enough of a performance impact to make it worth the cash?

I am considering "banks" exhaust... A lot of the big names you pay for the name like Borla, gibson etc...so i thought i might try a tested true performance company and a cheaper price... hence banks. They have some pretty good products out there.

what do ya think?

[SavageSun4x4]

Yes and No.

It is a system and by adding a good quality cat back you will gain a bit. How much is always debatable. Will it be enough to offset the high cost of a good system...only you can make that call. I run a Gibson cat back myself.

If you do plan on running a cat back system then adding the Banks headers will help and so will a good clean cold air system... In fact of all the upgrades you can make nothing will have a bigger impact and bang for buck than cold air. That said few of the cold air systems will do anything other than reduce your power.

Want power and mpg gains then go with 'Trash-Air': http://www.savagesun4x4.com/enter/jeep_installs/cold_air_fab_and_install.html

[YLWjeep02]

That is an interesting prototype for your cold air system, I currently have an intake and have been investigating the headlight area to find a possible "entry" for the cold-er air (Is there cold air in the southwest?)

I have also investigated hood vents that would assist with improving the flow of air out of the engine compartment, it seems as though even after a short drive around the neighborhood creates enough heat to not be able to touch ANYTHING under the hood on a hot AZ day (or vegas in my case).

But hey, "just empty every pocket" right?!

[pldamian]

electric will get rid of the belt driven one. The belt fan uses around 10hp. (i think)

its one of the cheaper 10hp gains you can do



x2

[SavageSun4x4]

That is an interesting prototype for your cold air system, I currently have an intake and have been investigating the headlight area to find a possible "entry" for the cold-er air (Is there cold air in the southwest?)

I have also investigated hood vents that would assist with improving the flow of air out of the engine compartment, it seems as though even after a short drive around the neighborhood creates enough heat to not be able to touch ANYTHING under the hood on a hot AZ day (or vegas in my case).

But hey, "just empty every pocket" right?!

It works and works very well, especially out here in the valley of the sun.

Hood vents are a major help out here in rock crawling: Here is an inexpensive set I installed. Writeup and pics: http://www.savagesun4x4.com/enter/jeep_installs/hood_vents_for_tj.html

[offroadaz]

It works and works very well, especially out here in the valley of the sun.

Hood vents are a major help out here in rock crawling: Here is an inexpensive set I installed. Writeup and pics: http://www.savagesun4x4.com/enter/jeep_installs/hood_vents_for_tj.html

Yep, hood vents help out. Just be careful when doing water crossing now

Heres a couple we have done

http://www.higherground4x4.com/Tech/Hood%20vents/IMGP0115f.jpg

http://www.alanrjohnson.com/hood%20vents%20small/100_19.JPG

More info (http://www.higherground4x4.com/Tech%20hood%20vents.htm)

[SavageSun4x4]

Where did the ones on the TJ come from?

[offroadaz]

Where did the ones on the TJ come from?

Those are the side vent outs of an H2 Hummer

[YLWjeep02]

I saw the hoodvents on the TJ somewhere else when I googled "Jeep hoodvents" the other day. You guys did a great job with those vents! Such a good job that I think I am going to take my TJ into my uncles body shop to do it myself!

Great Idea guys!

PS. if anyone is ever up in Vegas wheelin let me know, i just had to move up here for work and need to get my jeepin fix in soon!! 480.298.3890

[FourxDad]

Yep, hood vents help out. Just be careful when doing water crossing now

Heres a couple we have done

http://www.higherground4x4.com/Tech/Hood%20vents/IMGP0115f.jpg

http://www.alanrjohnson.com/hood%20vents%20small/100_19.JPG

More info (http://www.higherground4x4.com/Tech%20hood%20vents.htm)

What did you use for the XJ? They look good in the pic.

[thedude4145]

I have the JK and i was wondering how much the air intake would help?

[f5driver]

I have a airaid intake and a magnaflow exaust on my JK and it made a noticable differance in performance and mileage.

[Number 7]

I put a t-body spacer on my 4 cil and it made a noticable low end power difference.

[SavageSun4x4]

I put a t-body spacer on my 4 cil and it made a noticable low end power difference.
George, that is not an APPLE.

1) The TB MAY provide some improvement on 6 cyl engines that were made prior to '03 (?) in TJ's.*

2) The TB MAY provide some improvement on 6 cyl engines that were made prior to Fuel Injection (?) in XJ's.*

* The exact years on various models is a bit hazy, EVEN to Jeep engineering staff. Somewhere in the time line you will notice that the 6 cyl in the Cherokee has a tad more HP and torque. This was accomplished by using a intake with longer runners. After a time all of the 6 cyl have the longer runners and adding a TB which gives somewhat the same effect does not accomplish anything. The TB was the answer to improving 6 cyl performance without buying/installing a new intake.

As for the 4 cyl, not an apples to apples comparo. But you can expect, like George said, an improvement.

In fact MANY engines will see an improvement. Whether or not the JK V6 will see any gains is certainly questionable and I would hesitate to add a TB until some mag tested it on their nickel...let them spend their ducats.

FREE LUNCH: Folks it just is not there. Adding a TB may provide some gains, but the gains may well be where you do not want them such as at highway speeds or at rock crawling speeds. It RARE that any modification can be added that results in gains from idle to max RPM. Typically you add someplace and you lose someplace. More often than not the best you can hope for is the gain will exceed the loss.

30%++ gain: You know the exhaust pipe that runs from the muffler/cat and exits just behind the Jeep. As you know it makes an approx 270 degree bend over the rear axle on your rig. That pipe is NOT mandrel bent. swap it to a mandrel bend and you can expect to gain in excess of 30% better flow. And this is one mod that affects the entire RPM range with no drawbacks.