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Originally Posted by foff667
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Originally Posted by Fasterthanyou
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Originally Posted by foff667
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Originally Posted by Squirrel
can you like...turn your KS off from 0-5 mph?
and, are you using the wideband now or still goin the old way?
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no, i slapped in my wideband & did a little scanning & one flash...we didnt get back out to verify how close or far away he is from the perfect a/f though. |
And how did you come up with this "perfect AFR"?
BTW, Congrats Craig! Awesome time and mph. |
he was running at 12.2:1 from 4000-6400 rpms...im gonna try and get his af to 12.5-12.6:1 at 4000 & ~12.9-13.0:1 from 4600+ |
I was just busting your balls because a "perfect AFR" is the one that yeilds the best track results. If it's 11:1 so be it, so long as the engine is happy and the times reflect it.
When you lean out the AFR don't be suprised if you have to take out a little bit of timing. The reason for running slightly richer AFRs is to keep the cylinder temps down. Fuel cools things down because it increases the burn time. This means you can run more timing with a richer AFR. The closer to stoich (14.7) you get the less timing you can run, then running leaner than stoich (cruising highway mode) you can start adding the timing back in. Isn't tuning fun
__________________
, Jon
Owner of a Red Sled.
If it\'s EFI I can tune it. Specialize in 82-95 GM (yes Lt1\'s)
\"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......Then, you have enough horsepower\" - Mark Donohue
