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What size pulley?
Posted: Mon Oct 21, 2013 11:36 am
by DV327
I have done all the maintenance and added 180 thermostat, headers, and FWI. Engine must be breathing better. Boost gauge shows 6.5 at WOT. Which size pulley would be best for a daily driver? I plan on a tune with the pulley change. TIA. 2002 SSEi, BTW.
Re: What size pulley?
Posted: Mon Oct 21, 2013 12:17 pm
by nos4blood70
You should be able to swing a 3.4 after the tune. You can put it on before the tune but I wouldn't beat on it till it's tuned. I assume you have something like an Aeroforce to scan for knock with correct?
Re: What size pulley?
Posted: Mon Oct 21, 2013 12:20 pm
by DV327
Aeroforce is ordered. What kind of boost will the 3.4 generate?
Re: What size pulley?
Posted: Mon Oct 21, 2013 2:16 pm
by WhiteArrow3800
You should be able to safely run a 3.4 pulley and looking at around 11-12psi. It would be best to have the aeroforce gauge or a scanner that will read KR and check that before putting a smaller pulley on. If for some reason you already have KR issues a smaller pulley is only going to make it worse.