Procharger F1-A pulley help

[Bad Intention]

Im installing a F1-A this week and it came with a 3.85 pulley. We told them we was looking for 18-20 lbs. i was told buy another person that pulley will make 25+.

my set up is 2011 GT with built motor. Any help would be appreciated.

Thanks
Al

 

[ctgreddy]

my buddy has an f1r on a 2v car, at 6500 rpm's he's making 22psi with a 3.4, stock crank pulley. not sure how an f1r or a 2v car compares to your setup, i'd say try it and see. you can calculate the blower rpm's but there's no real way to know how much actual psi you'll get until you get it on the rollers. assuming you spin it to 7k and if the 5.0's have the same 6.5" diameter stock crank pulley as other modulars you should be around 64,000 rpm's at 7k and the blower maxes at 74,000, so you're a ways below that. i say run it and see.

 

[1QUICK10TH]

Yeah it really depends on the size of your crank pulley, try it and see what happens

 

[Bad Intention]

Thanks guys. I found out that a 4.25 will make 18 if i pull it to 7400.