rdavid0412 Posted September 18, 2012 Report Share Posted September 18, 2012 My mods are now in my sig line and was wondering what you think I should run at the track in NC. Coastal Plains RWP. I was thinking mid to low 13's? What do you guys think? Quote Link to comment Share on other sites More sharing options...
idahoBLKss Posted September 18, 2012 Report Share Posted September 18, 2012 How much psi are you making with that 3.2 on there? Seems like you would be slipping your belt wuth that small of a pulley. Whats the elevation of the track your going to be running? Quote Link to comment Share on other sites More sharing options...
rdavid0412 Posted September 18, 2012 Author Report Share Posted September 18, 2012 (edited) I am about 5-6 lbs of boost. I have not had any issues rinning the 3.2" pulley. I have sand blasted the pulley before I installed it. I'm even looking at the 3.0" if everything goes well. Not sure of the DA. its 15ft above sea level, air temp always changes maybe average of 83? Humidity is always high as well unless there is a front coming through. Edited September 18, 2012 by Full Circle (see edit history) Quote Link to comment Share on other sites More sharing options...
JC03SS Posted September 18, 2012 Report Share Posted September 18, 2012 I would say your guess would be close. Only one way to find out bro, take it to the track and give er hell. Quote Link to comment Share on other sites More sharing options...
rdavid0412 Posted September 18, 2012 Author Report Share Posted September 18, 2012 I would say your guess would be close. Only one way to find out bro, take it to the track and give er hell. I want to get a few more things done and the Tune nailed down before I do! I have 2 guys who drive HD edition F150's that are talking alot of SH!T and Wanna do some grudge racing. Quote Link to comment Share on other sites More sharing options...
idahoBLKss Posted September 18, 2012 Report Share Posted September 18, 2012 I see you have a underdrive pulley??why? I had a 3.4 on my p1sc and it was making around 11 psi with about the same mods you havei know the under drive pulley will slow the blower down but i wouldnt think 50% less boost. But at any rate when i was at 9#'s my truck ran a [email protected] but this was at a 3000ft evevation so i would guess you would be around the same with less boost and lower elevation. Quote Link to comment Share on other sites More sharing options...
rdavid0412 Posted September 19, 2012 Author Report Share Posted September 19, 2012 I have had nothing but Issues with all of the OEM balancers I have used. I need a stronger balancer then OEM and figured I would go to underdrive because it seems more robust. I also took into consideration that I could pulley down to offset the 25% underdrive. ProCharger reccomended through their math to go to a 3.4 would be back to stock boost of 5.5 Quote Link to comment Share on other sites More sharing options...
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