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Safe AFR on K20Z4 Comptech Supercharged?

Posted: Thu Sep 10, 2009 3:24 pm
by walter
My FN2 Civic Type-R Comptech Supercharged project almost done.

Kit is from Civic Si (K20Z3), using 3.3" pulley, RC650cc injectors, Toda header, Milltek exhaust and stock air box (soon will be changed).
For now I'm using JRSC 650cc calibration from FlashPro, I will use this calibration for tune.

My question is:
What is safe AFR for this kind of setup on idle, cruising and WOT?

Thanks

Posted: Mon Sep 14, 2009 7:52 am
by Hondata
Idle, cruise, etc should always be stoichiometric (~14.7). Full load, no boost should be 13.0-13.2:1. Boost should be 11.5:1 on pump gas.

Posted: Tue Sep 15, 2009 3:44 am
by walter
Hondata wrote:Idle, cruise, etc should always be stoichiometric (~14.7). Full load, no boost should be 13.0-13.2:1. Boost should be 11.5:1 on pump gas.
Thanks! :)