My dyno numbers

Jordo! · 04-25-2014, 04:38 AM

Quote:

Originally Posted by synolimit

Only if he was knocking before. My last session was running 22-23 degrees on 93. I know if I added 110 VP my timing wouldn't just shoot up unless I tell it to. There's no sensor on the car that reads octane. Just a O2, MAF, and knock sensor that can't. Again if I knocked at 24 degrees on 93 then we know 23 is all I could run. But with the VP I could shoot for 24-25-26 etc. but I'd have to go into the timing advance and push beyond 23 first.

There's a bunch of transient modifiers that can lead the ECU to pull back a bit of timing, the big ones being oil temp and IAT. In PR with 92* F temps, I could see that initial run being on the low side on 91 AKI if there was even a hint of knock.

Also, I have no idea what correction factors were used -- that's going to bump things up or down by a few points.

That said, I think it boils down to a slightly low baseline dyno and a slightly high reading post-mod dyno, but the overall proportionate gains don't seem wildly off base.

It would be interesting to see what it puts down on a dynojet with SAE correction, that's for sure.

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