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Old 08-06-2003, 10:57 PM   #9 (permalink)
PrimeUser
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Very interesting!

I just ran mine on the dyno last Sunday too. While I was there I learned from the dyno tech that turbo cars should run about 11.5 A/F ratio for max HP...

That's something I never knew... Before going to the dyno I always thought you should always shoot for 14.7 (perfect stoichiometric ratio) but no, not on a turbo'd engine he said. 11.5 is apparently the magic number to seek for max power...

And I always thought the magic numbers were 12.7 to 12.9:1 for peak torque and 13.0 to 13.2:1 for maximum horsepower.

Well, anyway, like I said, very interesting!

You DO learn something everyday...

Great info tip on the MAF gutting tho!

*EDIT* Ohh, I forgot to post my dyno pic (embarrassing HP but posted anyway so you can see my A/F ratios)

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