• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Knock retard

G

GTPJIM

New member
I finally had the courage today to drop down pulley sizes from a 3.6 to a 3.4 on my GTP which currently has an Overkill Tune, Autolite 104, Plog, 3" Downpipe, U Bend Delete, Magnaflow Catback, 180* T-Stat and KN CAI.
I was seeing 3* of KR at only 40% boost, should I go back to a 3.6 pulley for now or is this an acceptable limit?
 


are you using 93 octane ? what are your plugs gaped at ? were you seeing any kr with the 3.6 pulley ?
 
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