EZ44

My 02' LS1 Camaro is set up as race only. It has a 4000 FTI conveter and 4:11 gears. Everthing else is stock. Having trouble running consistent. It will run 11:93 and then a 11:89 back and forth. I did find that cooling the engine and tranny in between rounds helps but not enough. I also have an HP Tunner. Are their any bracket racers out there that can help?

79TAKid

iTrader: (1)

Well are you staging the same?

zracer323

iTrader: (12)

Since you have HPTuners, keep your computer in your car as much as possible and continually log temperatures at the track. I try to keep the IAT sensor as cool as possible, it can get heat soaked and cause the car to run off. Make sure you are staging the same every time and launch at a consistent rpm. I have found that my car likes to be brake stalled as high as possible to run consistent 60's. Track changes in the weather religiously (temp, humidity, DA at a minimum).

In the tune:
-copy high octane timing tables to the low-octane table
-zero out PE enable rpms
-disable COT

I know there are more things I do but thats all I could think of off the top of my head.

StreetSilverado

iTrader: (17)

I know my car has been back and forth on ET's this year, I think it's more of the weather here though.

Especially in SW Arkansas. It will be 103 in the day then cool down to 78 and then warm up and get humid for no reason.

We usually keep a temp and humidity handheld with us at all times. Also if you go to some of the big buck races you can keep track of time and the car will usually run around the same as the previous day. Note that the weather is about the same also.

EZ44

The car is consintent to the 1/8. The changes are all on top end.