stock gm computer cars

wood338P · 03-27-2016, 09:42 PM

what is the trick to making these modern 1998-2001 f bodies (more) consistent. I have a 01 v6 car that I use to travel out of state to bracket race and 7 out of 10 passes it is predictable ( .03/.04), but then it will slow a tenth or a tenth and a half two passes in a row and then jump back the other direction and run the quickest of the day. I'm not familiar with the preparing these computer cars. I try to keep the car at normal operating temperature and traction isn't a problem. I would just like to be able to keep it in the ballpark so I can give myself a shot each time down the track.

GTX JOHN · 03-29-2016, 05:15 AM

My son runs a cooler stat/ Programmer to start fans earlier and lean
out fuel mixture / Ices throttle body. He has won several track championship with it. He also uses drag radials.

nj02z · 03-29-2016, 07:42 PM

OLSD. Open loop speed density tune.

Tony Curcio · 03-31-2016, 12:15 AM

This might be the anti-knock sensor, which will retard the timing as the engine gets hot, then returns to normal after a cool down. If you don't want to spend $ on a programmer or aftermarket ECM, you might get away with simply running higher octane fuel.

Maybe add a switch that lets you run the electric fan at will, especially when the engine is off.

Jeff Stout · 03-31-2016, 01:45 PM

On my 06 Magnum I was keeping track of intake heat (harbor freight heat gun) and ET. After awhile a pattern was showing. It did help a lot dialing later in rounds. Not perfect but helpful.

Adam Woodmancy · 04-01-2016, 12:14 PM

thank you guys for the replies.

03-27-2016, 09:42 PM	#1
wood338P Junior Member Join Date: May 2009 Location: Manito, IL Posts: 12 Likes: 2 Liked 0 Times in 0 Posts	stock gm computer cars what is the trick to making these modern 1998-2001 f bodies (more) consistent. I have a 01 v6 car that I use to travel out of state to bracket race and 7 out of 10 passes it is predictable ( .03/.04), but then it will slow a tenth or a tenth and a half two passes in a row and then jump back the other direction and run the quickest of the day. I'm not familiar with the preparing these computer cars. I try to keep the car at normal operating temperature and traction isn't a problem. I would just like to be able to keep it in the ballpark so I can give myself a shot each time down the track. __________________ Adam Woodmancy *338P*

03-29-2016, 05:15 AM	#2
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,527 Likes: 2,217 Liked 1,790 Times in 571 Posts	Re: stock gm computer cars My son runs a cooler stat/ Programmer to start fans earlier and lean out fuel mixture / Ices throttle body. He has won several track championship with it. He also uses drag radials. __________________ John Irving 741 Stock 741 Super Stock

03-29-2016, 07:42 PM	#3
nj02z Junior Member Join Date: Dec 2015 Posts: 4 Likes: 0 Liked 0 Times in 0 Posts	Re: stock gm computer cars OLSD. Open loop speed density tune.

03-31-2016, 12:15 AM	#4
Tony Curcio Member Join Date: Mar 2002 Location: West Chester, PA Posts: 271 Likes: 1 Liked 4 Times in 1 Post	Re: stock gm computer cars This might be the anti-knock sensor, which will retard the timing as the engine gets hot, then returns to normal after a cool down. If you don't want to spend $ on a programmer or aftermarket ECM, you might get away with simply running higher octane fuel. Maybe add a switch that lets you run the electric fan at will, especially when the engine is off. __________________ Tony Curcio 1860 STK

03-31-2016, 01:45 PM	#5
Jeff Stout VIP Member Join Date: Dec 2001 Location: phoenix Posts: 1,407 Likes: 53 Liked 654 Times in 254 Posts	Re: stock gm computer cars On my 06 Magnum I was keeping track of intake heat (harbor freight heat gun) and ET. After awhile a pattern was showing. It did help a lot dialing later in rounds. Not perfect but helpful.

04-01-2016, 12:14 PM	#6
Adam Woodmancy Junior Member Join Date: Dec 2013 Location: Manito, IL Posts: 1 Likes: 0 Liked 0 Times in 0 Posts	Re: stock gm computer cars thank you guys for the replies. __________________ 1972 LeMans NMCA O/C

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