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what is the target a/f on a supercharged car

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what is the target a/f on a supercharged car

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Old

Apr 21, 2009 | 06:50 PM

#1

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Staging Lane

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what is the target a/f on a supercharged car

stock engine, epp blower cam and 8 psi p1 procharger my a/f is in the 12.3-12.6 is that too lean

Old

Apr 21, 2009 | 06:52 PM

#2

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I like 11.2-1 to 11.6-1 depending on boost level ect.

Old

Apr 21, 2009 | 06:54 PM

#3

TECH Senior Member

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Exclamation

Would be..

Quote:

Originally Posted by transdam

stock engine, epp blower cam and 8 psi p1 procharger my a/f is in the 12.3-12.6 is that too lean

in my opinion. That is a ?? area.
Given it's a stock engine, I'd be looking at something in mid 11's.
Keep an eye on the plugs,,,
Start fat, and sneak up on it!

Old

Apr 21, 2009 | 07:23 PM

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TECH Junkie

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Always a good idea to start safe and read the plugs. Try asking in the Forced Induction section, someone may have something similar.

Old

Apr 21, 2009 | 07:25 PM

#5

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I have mine at 11.5 with the plugs gapped at .028.

Old

Apr 21, 2009 | 08:13 PM

#6

FormerVendor

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What kind of WBO2 are you using? Placement in the exhaust? Is it calibrated?

Old

Apr 21, 2009 | 10:59 PM

#7

sunsetorang01TA

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typically forced induction setups should be between 10.5-12.0:1. That is what i've always been taught.

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Old

Apr 22, 2009 | 08:01 AM

#8

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Staging Lane

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Quote:

Originally Posted by Doc

What kind of WBO2 are you using? Placement in the exhaust? Is it calibrated?

aem wideband 1 year old 5,000 miles on the sensors
1 foot from the header collector
not calibrated
how do you calibrate it ?

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