Air/Fuel + PSI

[tjh566]

Whats the safe A/F Ratio for a supercharger, like the range, ive heard 11.5 was good, but if it were say 11 would that be ok just a little rich? or if it were 12 would it be ok just on the lean side? Trying to save my motor, just looking for an "Acceptable" range for the A/F. Thanks!

 

[tjh566]

tt................. I tried searching a little before this post but the search is hard to use from what ive tried doing, you get a billion threads none relating to what you want.

 

[94CobraPace]

Around 11 is a good safe number. 12 is getting a little lean, especially if you are pushing over 10 psi.

 

[final5-0]

While I was doing research to decide if I was gonna go NA or Forced, I spent a good bit of time on several power adder forums.

You would see an occasional dip go down to 10.5 and even as low as 10.0 from time to time in those boys dyno pulls.

Some of the time, they did not strive a whole lot to change it.

With forced induction, the additional fuel can help to cool the charge a bit.

Bottom line is you are correct about them running a good deal fatter than NA combos.

Grady