Tuning for bracket racing
Thread Starter
Teching In
Joined: May 2011
Posts: 5
Likes: 1
Tuning for bracket racing I am new to tuning but have learned a lot and I have my car dialed in pretty close to where I want on my VE and MAF tables and the car drives good. However I took it to the track this weekend and it wasnt as consistent as another car that i had mail order tuned. It wasnt terrible but did make one move of .04, so it was making bigger moves with the weather than I'd like. What are some things I should look at to make the car more consistent??
Thanks
Thanks
There are so many variables to this. Everything from tire temp to track changes to fuel quality to engine and trans temp. The variables to consider are practically infinite.
Obviously your tune didn't change between runs, so it's exterior variables that are causing the change.
Obviously your tune didn't change between runs, so it's exterior variables that are causing the change.
For my very competative bracket racers we do a full open loop tune with no maf,no 02's correcting and put in an adjustable fuel regulator for minor temp adjustments.
They are very consistant
They are very consistant
Thread Starter
Teching In
Joined: May 2011
Posts: 5
Likes: 1
I understand that outside variables ultimately play the biggest role in consistency. I guess I should have stated my question as what would you be inclined to do differently in a tune for a car you would want to make sure was consistent as possible tune wise? What thing would do differently vs a all out performance tune or daily driver street tune?
* You don't want knock retard possibly pulling timing one pass and not the next pass. Some cars are very susceptible to KR.
* Any positive LTFT will be carried into PE mode at wide open throttle. This can cause inconsistency with your AFR. Be sure you tune for all negative LTFT.
* Delete any torque management and traction control
* Any positive LTFT will be carried into PE mode at wide open throttle. This can cause inconsistency with your AFR. Be sure you tune for all negative LTFT.
* Delete any torque management and traction control
I understand that outside variables ultimately play the biggest role in consistency. I guess I should have stated my question as what would you be inclined to do differently in a tune for a car you would want to make sure was consistent as possible tune wise? What thing would do differently vs a all out performance tune or daily driver street tune?
We have been doing the same with very good results. Had some cars get protested several times because they are so consistent. They were running foot brake, no electronics class and get accused of having something hidden in the car. We only handled the tuning, the driver is just very good and is very good at doing his routine the same every pass.
On The Tree
Joined: May 2003
Posts: 179
Likes: 2
From: So. IL
See quote below. Thats a good bit of it.
We have been doing the same with very good results. Had some cars get protested several times because they are so consistent. They were running foot brake, no electronics class and get accused of having something hidden in the car. We only handled the tuning, the driver is just very good and is very good at doing his routine the same every pass.
We have been doing the same with very good results. Had some cars get protested several times because they are so consistent. They were running foot brake, no electronics class and get accused of having something hidden in the car. We only handled the tuning, the driver is just very good and is very good at doing his routine the same every pass.
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Verdad Gallardo If the driver/crew doesnt have tuning software and we dont go to the races with them it gives them a away to fine tune there fuel for different weather. If you raise the fuel pressure it will make it richer, if you lower it, it goes leaner.
I am new to tuning but have learned a lot and I have my car dialed in pretty close to where I want on my VE and MAF tables and the car drives good. However I took it to the track this weekend and it wasnt as consistent as another car that i had mail order tuned. It wasnt terrible but did make one move of .04, so it was making bigger moves with the weather than I'd like. What are some things I should look at to make the car more consistent??
Thanks
Thanks
There are many that feel that way but bracket racers really don't care. Every type of racing, especially class racing has issues. Bracket racing is one of the easiest types of racing to prevent cheating and even if you think it doesn't, it keeps drag racing alive. I don't think the OP asked or gives a **** if you don't like it.
There are many that feel that way but bracket racers really don't care. Every type of racing, especially class racing has issues. Bracket racing is one of the easiest types of racing to prevent cheating and even if you think it doesn't, it keeps drag racing alive. I don't think the OP asked or gives a **** if you don't like it.
