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need input on pe tuning


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#1 Hrobb256

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Posted 13 September 2016 - 09:02 PM

have a 03 awd ss and taking it to a dyno is out of the question I know each setup is different but wondering what air fuel ratio is a good target for best power on these trucks? I was thinking about trying to shoot for a 12.2-12.5 if anyone has some dyno experience would be appreciated. im running small cam headers no cats cai


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#2 1BAD2K

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Posted 14 September 2016 - 08:12 AM

I would definitely talk to a professional tuner and have him "street tune" the truck.
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#3 Downeast Johnny

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Posted 14 September 2016 - 04:13 PM

:withstupid:   Find you a good tuner, (Zippy), Let him know what your current mods are and he will set you up with a tune.  In the future you can send him logs from a laptop and he can tweak and fine tune it.


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#4 chpspecial

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Posted 15 September 2016 - 12:18 PM

12.5 to 12.8 is a good target on good gas. Watch for lean kr. If you start to see it. Richen it up a bit. Also make sure your commanded and actual AFR match. If they don't. You need more tuning than just looking for a value on a wideband.

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#5 Hrobb256

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Posted 17 September 2016 - 05:05 AM

thanks truck has been tuned I have hptuners and was seeing some high 11's on the wideband and thought that was a little rich it runs good just wanted to see what you guys shoot for and see how it does in the mid 12s

thanks


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#6 Krambo

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Posted 12 November 2016 - 07:39 PM

12.5 to 12.8 is a good target on good gas. Watch for lean kr. If you start to see it. Richen it up a bit. Also make sure your commanded and actual AFR match. If they don't. You need more tuning than just looking for a value on a wideband.

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Good advice here.

 

To the OP - Honestly, I saw very little performance gains going from 12.0 to 13.0 tailpipe AFR for a NA truck.  I would target the range from CHP above.  


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#7 Downeast Johnny

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Posted 12 November 2016 - 09:35 PM

 

Good advice here.

 

To the OP - Honestly, I saw very little performance gains going from 12.0 to 13.0 tailpipe AFR for a NA truck.  I would target the range from CHP above.  

 

Hey Kevin,

 

Great to see you back for a visit.  I hope all is good with you.


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#8 Krambo

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Posted 24 December 2016 - 09:43 PM

Hey man!  All good here.  I have been out of the performance vehicle arena for a bit though.  Thinking I need to jump in again...


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#9 Downeast Johnny

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Posted 25 December 2016 - 05:46 AM

Hey man!  All good here.  I have been out of the performance vehicle arena for a bit though.  Thinking I need to jump in again...

 

It will draw you back in after a while.

 

Merry Christmas.


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