question for those with air pump elim.

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Dec 3, 2001 | 01:25 AM

AS84

Thread Starter

Melting Slicks

Joined: Aug 2000

Posts: 2,009

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From: Springfield MO

question for those with air pump elim.

Does anybody have any real gains with one installed? ET wise or MPH wise. I'm curious if its worth the $
thanks

Dec 3, 2001 | 01:26 AM

scorp508

Team Owner

Joined: Mar 2000

Posts: 83,383

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From: Boston, MA

Re: question for those with air pump elim. (AS84)

I'm sorry, I can't help you here. I changed 2 things before getting a good strong run in.... removed the main cat, and the air pump.

Dec 3, 2001 | 01:29 AM

AS84

Thread Starter

Melting Slicks

Joined: Aug 2000

Posts: 2,009

Likes: 1

From: Springfield MO

Re: question for those with air pump elim. (scorp508)

You had a pretty strong gain with those two mods didn't you? Do you still have your precats?

Dec 3, 2001 | 02:06 AM

scorp508

Team Owner

Joined: Mar 2000

Posts: 83,383

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From: Boston, MA

Re: question for those with air pump elim. (AS84)

Quote:

You had a pretty strong gain with those two mods didn't you? Do you still have your precats?

Yeah, I picked up on average 3mph, and went from 13.89 to 13.48. I got some REALLY good air and track conditions that day. The air was -487 feet that day. I also ran in complete street trim that day though, I didn't play with my tire pressure like I normally did.

Dec 3, 2001 | 08:29 AM

MDC9966

Burning Brakes

Joined: Sep 2001

Posts: 1,160

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From: Sumter, SC

Re: question for those with air pump elim. (scorp508)

Hey Scorp,
Are you still running the precats? How about sound without the cat? Any better? The 3mph in the traps, can you feel a difference just driving around in the car?

Dec 3, 2001 | 12:24 PM

Vic'89

Safety Car

Joined: Jun 2000

Posts: 4,870

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From: Long Island, NY

Re: question for those with air pump elim. (AS84)

You will not feel any differance witht the AIR pump Elim pulley, but you will gain go slightly faster in the 1/4 mile.

I gained about 1 tenth in ET.

Vic

Dec 3, 2001 | 01:07 PM

scorp508

Team Owner

Joined: Mar 2000

Posts: 83,383

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From: Boston, MA

Re: question for those with air pump elim. (Curtis629)

Quote:

Hey Scorp,
Are you still running the precats? How about sound without the cat? Any better? The 3mph in the traps, can you feel a difference just driving around in the car?

I still have the precats. The sound is much better. It sounds more "gurgly" at idle, slight popping on deceleration, and roars a little more at WOT.

As far as SOTP, it is hard to say. I think down low is the same, but it pulls a couple hundred RPM more up top. The car usually completely would die at 4800 RPM, but will hold up to about 5100 now. I still shift much much sooner since the peak power is lower, but you CAN run the gear out more if need be.

I gained about 1.5 mph in the 1/8, and 3 in the 1/4.

Dec 3, 2001 | 01:21 PM

BAdAzZV8

Drifting

Joined: Nov 2001

Posts: 1,587

Likes: 0

From: Omaha NE

Re: question for those with air pump elim. (scorp508)

You guys are talking about the EGR mod right, if so can someone post a link to a page that shows how to do this mod.

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Dec 3, 2001 | 05:23 PM

Dr. Evil

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From: DrunkDefender

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Re: question for those with air pump elim. (AS84)

I actually did before and after dyno tests with mine. No real gains. Maybe 2 hp but it does remove at least 25lbs and cleans up the engine compartment alot. It was worth it to me.