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HELP! Is this a good Air/Fuel mix?

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Old Jan 20, 2003 | 09:45 PM
  #1  
Black@sNight's Avatar
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HELP! Is this a good Air/Fuel mix?

I just dyno'd my car for the first time since it was brand new. I have done a few things since that you will find in my sig.

The Air/Fuel mix was @ 11.1. I don't know how to interpret the number. I have heard that this may be a rich mix and that quite a few horsepower could be gained by bumping it up to around 12.8.

Can anyone with some insight into what all this means provide advice?

Thanks!

Also...Let me know if you think these dyno's look good or not and why?

Stock 2002 Camaro Z28 A4:

294.6 rwhp
321 rwt


Modded 2002 Camaro Z28 A4
(Direct-Flow Lid, K&N Air Filter, SLP Air Sensor module, SLP Cold Air Induction, Corsa Catback Exhaust):

306.2 rwhp
322 rwt

-d
Old Jan 20, 2003 | 10:18 PM
  #2  
V6toZ28's Avatar
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From: Sac, CA
Your info is correct ... it's rich and if you can get the AF/R to around 12.8 you should pick up some ponies.
Old Jan 22, 2003 | 06:53 PM
  #3  
JimMueller's Avatar
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From: Casselberry FL USA
Bump your AFR up to about 13.1 <-> 13.3 on the dyno. Driving it will induce more load and it'll drop to about 12.8-9

Oh, there's a fella with the following sig which dynoed last weekend at a Dyno Day. Numbers in sig, but I think his is a M6...

2002 Silver Trans Am WS 6
Direct flo lid, K&N filter,Powerstat 160, SLP Y-pipe with Magnaflow high performance exhaust system
327 RWHP 344 RWTQ
Old Jan 22, 2003 | 07:28 PM
  #4  
Geeterman's Avatar
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From: Burbs, Chicago
You are running pretty rich, your numbers would be a bit better if you got it near 13.0:1.
Old Jan 23, 2003 | 03:49 PM
  #5  
Black@sNight's Avatar
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Thanks for the advice fellas...LS1 edit next week...
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