toddk911

ok cool.

Yea, it seems the idle is fine. and I will work on the others. I guess I will get it all set, then see how adjusting the ACELL effects things.

toddk911

well, getting used to it.

Should all HIGH tuning runs be done in 4th gear?

How lean can you go in the MID to help spool up?

Tom M'Guinn

No need to tune only in 4th -- you'd need a lot of open road. Check out splitsec.com for tuning info. You want to tune it so it stays in closed loop (hunting for 14.7) when you are not at or near full throttle, and so that the a/f curve stays near 12:1 from the time you have boost to redline. A little richer on the top end for safety margin is a good idea. I ran 13.5:1 on 100 octane by mistake recently -- that blew my last HG lickity-split. Try to get a good a/f curve under WOT at say 12psi, and then adjust as you add boost a little at a time. Don't turn it to 18psi, floor it to redline, then check the a/f curve.

toddk911

Ok.

Yea, I had it really rich at first to be safe and have just been dialing it back little by little.

until I now noticed I am rolling off boost up top, but that is another issue I guess I will have to address first before I can get an accurate tune.

If you stay in closed loop, the computer takes over and does not let you make adjustments correct??

toddk911

'I ran 13.5:1 on 100 octane by mistake recently "

Wow, that is only a little lean and with the 100 octane should have covered that. Are you running a lot of advance???