anyone else do this mod? only problem i see is like gc86, you're probably gonna need a tune more than any other mod

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Acura TL-S 02-03, CL-S 01-03
- TB Power Package: 2 Throttle Body Thermal Gaskets and 1 TB Spacer - $120 shipped
- Power Package: 2 Throttle Body Thermal Gaskets and 1 TB Spacer and 1 Intake Manifold Thermal Gasket - $150 shipped
- P2R Power Plenums - $600 shipped

 

Can someone explain how a throttle body spacer increases performance?

It is supposed to increase intake air speed?

 

its posted above... read the whole thread before you ask questions

 

Intake Manifold VOLUME is how this mod makes power, but honestly all of the P2R products will need a tune or the ecu will adjust.

 

Even with the throttle body spacer? I thought only the plenums would need a tune.

 

anything that changes a/f requires a tune

 

The TB spacer doesn't require a tune.

 

I understand that it increases the volume after the TB

But how does that translate into extra hp?

 

http://home.bresnan.net/~dazed/horsepower

i only read the first few lines but it seems spot on enough to answer your question.

 

First few days after installing the P2R tb spacers or plenums you will have power, than the ECU will adjust AFR to factory parameters. Tuning with a AFC fixes this.

And more intake manifold volume = more air = car runs lean and makes more power.

 

The TB spacer stores more volume of air so when the cylinders need more there is more air to draw from. The thermal gaskets act as a buffer between the TB and the plenum. The metal surfaces aren't making direct contact anymore so the amount of heat transferred is reduced thus resulting in lower air intake temps. The ECU will see this and increase timing or make other adjustments.

 

Thanks everyone for the posts:

So simply put - it seems to me the idea is that by having a larger body of air to draw from, the engine doesn't have to work as hard to pull the air into the engine which in turn should free up a couple of hp.

 

What about using both, to increase air volume & reduce the thermal signature?

 

many people have done that

 

Good deal! I don't have the car yet (took it to a mechanic today & am awaiting his report) but I have a slew of mods in mind. I am already in trouble!

 

make sure you get some good front rotors. the stockers are crap.

 

Will do, which are recommended?

Here are a couple of pictures I took.



The cover on the steering wheel will be my first mod, when I remove it.

 

lol i saw that pic of the interior before i scrolled down and saw your comment and was like ewwww!

nice pickup. before you get the spacer...drop that thing.

 

i've had the EMC rotors on the car for ~5 years w/o any issues.

 

Great. Thanks.

The car checked out, unfortunately after the owner went on a three week vacation. I gave a deposit that was predicated on a good bill of health and the understanding that I might have to wait three weeks.

I was hoping to get off work before they left. Gonna be a long three weeks of buying mods for a car I don't have yet .