my new custom CAI and MAF

Jordo! · 01-30-2011, 08:51 PM

Quote:

Originally Posted by Megan370z

after looking at the TB
there is enough adjustment on both screws on each TB to properly reduce the idle quite lot.
there shouldn't have any problem getting back the low rpm idle

as for the tuning with a lower idle ,,
no we didn't went too much in the tuning because the time was limited.
I did what I could but since I'm going back on the dyno in April ,
that will give me the time to fix those little details !

Only reason I mention that is that idle speed is affected a lot by TB size, and there is some physically determined range that any given engine will idle smoothly at, which may nor may not be as low as stock with the new set up. Probalby more room to adjust due to VVEL, but no idea how the idle map affects that -- good luck!

Messing with the set screws may screw up TPS calibrations... just something to think about if you have to move things by more than very small increments.

Quote:

Originally Posted by Megan370z

previously before the Dyno I reduced the timing about 1-2 degree
it was getting close to 12.9-13.0 at 6800rpm in uprev which is about 13.4 on my WB

Hmm, not particualy lean for a NA car, but maybe a few 10ths of a point leaner than the ECU likes to see at WOT? I seem to be making best power on a steady 13.2 - 13.4 across the board at WOT (according to tailpipe sniffer, so not that lean in reality) with several extra degrees of timing down low through mid range, and only 1-2 over stock up top.

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