[Cross]

As has been pointed out MBT is going to be a major concern as an example before I started tuning my Vette a tuner just put it to 32 degrees and left it. Thankfully one of the better tuners took the time to pass on some information about MBT and share some common facts on that platform. Going to 26 and working my way up I found 28 to be the best. I did my testing at the track using trap speeds but the process proved what I had been told.

E85 NA is really hard to mess up, FI not so much.

However now with years of testing I found that 12.2 - 12.6 to be the best range. 12.3 - 12.4 have always felt the best and now that you can log AFR via wideband you can really dial it in. However with my testing on the FRS being cut short in favor of a turbo setup I didn't get to test my tune at the track or on the dyno with the AFR changes to prove the same being true of this car.

Sent from Spaceball 1