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gorskined gorskined is online now
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Join Date: Nov 2019
Location: Central Connecticut
Posts: 539
afr#S while in boost

spring is here again in the northeast. i have the turbo back together and on the road with a freshly rebuilt transmission .
still making minor tweaks now that i have a better understanding of how all the adjustment effect each other .
so here are my AFR #S

I'm typically running in the high 12s afr at an idle when i adjust higher the car hunts a little.

Running high 13s when tooling around not under boost .

Off the gas after accelerating while its making popcorn ( drives my crazy getting better at feathering the gas pedal) its high 15s low 16s .

after the boost dump mid 11s the longer in boost the lower the afr drops it will drop into the low 10s.

I have the rpm solenoid boost hold out set to 3800rpms .
should i adjust my rpm hold out up or adjust my boost dump on the wur to try and get my boost a little more lean or is 10 ok?

what a good not to exceed afr# while in full boost ? what the norm?

Again don't really care about Hp and making more power looking to maximize engine life . will afr in the 10s wash down the cylinders ?
The car responds great im just concerned with the low 10s under full boost.


Thanks in advance

Regards Ned
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Ned G. 1976 row turbo i/c k27raptor turbo sc cams in a 80sc wide body
Old 05-13-2025, 04:19 AM
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