jeromepleskac

been searching for the past 2 nights and cant find my answer, so all info will greatly be appreciated

i just bought a p1sc from a member on this board and im looking at changing the pulley, im looking for right around 10#'s

my current mods are catless downpipe, shortys, built 4l60 with circle d 3200 stall, and 4:10's

and its a stock 4.8 truck, so im in need of what exact pulley size i should buy or something close to it

thanks for the help

Mangled03gmc

iTrader: (95)

I think a 3.7 will get you close to that..

NegraRCSB2X4auto

iTrader: (15)

+1 on the 3.7

jeromepleskac

thanks fellas, another question also, where should i place my MAF? on the inlet of the procharger or somewhere towards the throttle body? if it helps it is an intercooled kit

NegraRCSB2X4auto

iTrader: (15)

i keep it in the stock location and it works fine.

Mangled03gmc

iTrader: (95)

^^^ This

jeromepleskac

thanks again fella's, im going from a 150 shot, should i change the style of spark plug i use for boost? im not sure what heat range would suit me the best

Sierra1320

iTrader: (1)

What plugs and what gap are you using now? You usually want to set your gap from .030 to .035 for boosted applications. An NGK TR6's or BR7EF's are good boost plugs for up to 10psi and beyond.

phasemaster1

iTrader: (11)

What size pulley do you have now? I recall coldkillinta had a p1sc on his rst 4.8 mt running a 4.10" pulley pushing 10 psi.

02BlueStepside

iTrader: (1)

My 4.8 with a d1sc makes 10ish with a 4.1" pulley