Bracket race tune
Following.
I haven't tuned my car yet, but it is a bracket only car. When it's not at the track it is in the garage.
I did quite a bit of reading about this and consistency and if I stay fuel injected I intend to bias the spark tables toward ECT and away from IAT and have them not really pull much timing until up over 200* of ECT. Having timing be so easily pulled can usually hurt the run and the reaction time in my opinion.
For the time being I've gotten an IAT extension and moved my IAT sensor from the lid to behind the headlight; it's brought some predictability to the car for sure.
Are you using MAF, or Speed Density?
I haven't tuned my car yet, but it is a bracket only car. When it's not at the track it is in the garage.
I did quite a bit of reading about this and consistency and if I stay fuel injected I intend to bias the spark tables toward ECT and away from IAT and have them not really pull much timing until up over 200* of ECT. Having timing be so easily pulled can usually hurt the run and the reaction time in my opinion.
For the time being I've gotten an IAT extension and moved my IAT sensor from the lid to behind the headlight; it's brought some predictability to the car for sure.
Are you using MAF, or Speed Density?
Olsd.My iat sensor is relocated.These are the last two tables I have to zero.The car does good now(2 in track points) but always looking to improve.I am going to zero the iat table up to 122. , I am thinking the ect table should not effect much because the car is always warm before a run.
Last edited by nj02z; Mar 3, 2017 at 03:36 PM.
TECH Fanatic
Joined: Sep 2007
Posts: 1,244
Likes: 7
From: hattiesburg, Ms
The car can get up to 122 iats easy when it's hot outside and the car is sitting still. I let mine sit and idle with the hood closed before and it got up in the 14x's. I don't take the chance on that. Once mine gets moving the iats fall quickly so it doesn't stay there very long.
TECH Fanatic
Joined: Sep 2007
Posts: 1,244
Likes: 7
From: hattiesburg, Ms
There is also a table to add fuel if the ect's get to hot but I think that is 220+. I would make sure it didn't pull any timing around 210 to 220 in the table but that's just me. I believe mine can get up over 200 but not likely unless it's hot lapped.
My car will not pull any timing at 167 ect and above but it will pull some at 113 and above iat. I am not as concerned with the ect table but I am thinking my iat can go above 113 in the summer when it sits still. I am wondering if I can zero the iat table below 133? I am going to use the afr correction table to slow the car down if needed(index racing).
TECH Fanatic
Joined: Sep 2007
Posts: 1,244
Likes: 7
From: hattiesburg, Ms
My car will not pull any timing at 167 ect and above but it will pull some at 113 and above iat. I am not as concerned with the ect table but I am thinking my iat can go above 113 in the summer when it sits still. I am wondering if I can zero the iat table below 133? I am going to use the afr correction table to slow the car down if needed(index racing).
Trending Topics
10 Second Club
Joined: Nov 2005
Posts: 933
Likes: 75
I am not saying this is correct, but here is my IAT/ECT tables. I have tuned it at the higher temps so it doesn't show knock. If you just zero the tables and don't check it, you might have a problem. I don't like pulling the IAT out of the intake because then your engine doesn't know wtf the actual iat temp is, and the IAT table is worthless. I would make sure your low octane table is several degrees lower than the high so you have some room in case it does knock.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo