Quote:
Originally Posted by CVD
I'm also getting a shit-ton of knock until the car reaches operating temp. Is this rich knock? Is it common with E85?
Is it safe to just lean it out until I see knock then add like +2% across the board?
I'm getting no knock now, and it pulls strong at WOT. Just stumbles once in a while during cruise and I'm seeing crazy duty cycles at WOT and sometimes while cruising (like 40% under mild acceleration). Also the top end feels a little doggy. Boost from the 11b falls off pretty quick, but duty cycles seem to keep climbing to redline.
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My talon always did that too, I always thought it was due to the lifters.
No that's not safe at all. You can't tune E85 (fuel or timing) with knock, well you "can" but you'll tear stuff up or at least end up running way off from where you should be with no indication of it.
On E85 I never really register knock on my 2G no matter what I do with the fuel or timing. The 2 1G's I've changed to E85 would show knock once in a while, but neither had a wideband, and 1 of them had some issue as it was about impossible to not show knock like crazy when it was on gas (I could pull 10` timing and it would still show knock). 1G's have an overly sensitive and finicky knock sensing system IMO.
Take your injectors size and divide it by 1.4; to tune, pretend that number is your real injector size. If you have a chip for 550's, 750's are what would be ideal for tuning E85 on it. A chip actually designed (for gas) for the injectors you're running is actually more of a burden than a help for E85.