I'm trying to set up my launch control but don't know a good starting point with fuel and timing with e85. My set up: b18c 84mm type r head, Bosch 1600 inj, msd 6al, 3inch inline pro exhaust all the way back , put 491 at 17psi


Any input will be greatly appreciated

 

Bump

 

Launch control point is going to be different on every vehicle.
You need to go to the track & figure out what your car/track/tire combo likes.

Start at lets at 5500 rpms and go from there etc...

 

Thanks for your input, I'm more worried about the wrong timing and fuel addition that I might mess up something

 

Read this thread: https://honda-tech.com/forums/engine-management-tuning-124/dialing-anti-lag-2-step-2926286/

You likely won't need to use ant-lag to get a good 60 ft time & launch.
Every application is different.

 

For starters put the Fuel enrichment at 200 and the ignition timing at -20. For example, if you were to change the ignition timing to -28, it will build boost faster. Just play with it, and see what you like.

 

What tire/axle/tranny/engine/turbo setup do you have?

 

Dss 5.9... 24 10 13 Mh's... Gsr trans carbon syncros heat treated gears, stock itr diff... Full race top mount gt4088r full race 3" DP...

 

Set your revlimit to a fuel + ignition cut style.
Start your tire pressure at 8-10 psi for your first run.
Simply use a standard two step & start at around 6000 rpms for a launching point.

You should be good to go. If you experience some bogging off the line, raise the two step as needed.
Leave the ignition retard & enrichment values at 0.
You should be good to go.

 

Is it bad to have the rev limiter set to just cut fuel?

 

No, however you will build more boost with a fuel + ignition cut on s300 then just a fuel cut.

 

Thanks for your help guys!

 

No problem, have fun!

 

How would cutting fuel+ignition build more boost then just cutting fuel?

 

I don't feel like typing a long description of why it does.
It just does, just like cutting ignition only builds more boost then just cutting fuel....

 

I ask because I have tried both and have not noticed any appreciable difference.

 

I certainly noticed a difference with fuel+ignition cut vs just fuel