Tune question

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Feb 20, 2009 | 10:03 PM

Tims02

Thread Starter

Intermediate

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Tune question

I recently installed a set of E.T. Performance 2.5 heads and a Torquer 3 cam in my 02 C5. I brought the car to my tuner and he tuned it to where it idles at 900 RPM but my question is when I start the car up it revs to 2800 RPM for about 5-8 seconds. This cant be good for the new springs in the heads can it? What would cause this to rev so high?

Feb 20, 2009 | 10:20 PM

Y2Kvert4me

Race Director

Joined: Oct 2002

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From: Gone

CI 6-7-8-9-10 Veteran

St. Jude Donor '03

If the throttle body wasn't messed with, I'd guess way overcompensated on startup airflow correction.

Feb 20, 2009 | 10:48 PM

Tims02

Thread Starter

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The throttle body was taken off and he drilled a 7/32" hole in it.

Apr 17, 2009 | 03:50 PM

roysvett

Instructor

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torquer v 2

if u need help with the tune call me i can talk u through the numbers roy 270234 3676 any time all ready fought the fight and got mine very close

Apr 17, 2009 | 05:49 PM

ZZOOM06

Drifting

Joined: Jan 2004

Posts: 1,419

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From: Alamosa CO

Quote:

Originally Posted by Tims02

The throttle body was taken off and he drilled a 7/32" hole in it.

No offense, but you need to find a new tuner! Drilling a hole in the TB blade is a no-no on an electric actuated TB. The F-body guys do this alot and you can get away with it on a cable type TB, but it don't work very well on the vette!

Apr 19, 2009 | 05:31 PM

squidwards vert

Racer

Joined: Dec 2008

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From: Port Richey FL

Quote:

Originally Posted by ZZOOM06

Apr 19, 2009 | 06:19 PM

coanan

Burning Brakes

Joined: Jan 2007

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From: Boca FL

Make him replace the throttle body and find another tuner.

Apr 24, 2009 | 12:42 PM

roysvett

Instructor

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make him buy a new t boby. you dont drill a vett. it is all done with ith tune .call me i will help u with all the numbers. if u have hp tunner. if it is drilled find a pop rivet the proper size or drill it a little bigger for the next size rivet. pop it in and start all over with the tune. done it 3 times

Last edited by roysvett; Apr 24, 2009 at 12:45 PM.