i recently bought a CTSC set up for a front mount. as far as i know, the front mount will lose 2psi of boost. so should i get a pulley that generates 9psi of boost and assume i will get 7psi effectively? also will i be able to run stock injectors with 7psi and be able to tune effectively by just having my tuner adjust the comptech FPR? i have RC 440s that came with the kit but i'd rather keep everything as stock as possible.

thanks

 

There was a post where actual testing showed only .5 psi drop from the UR front mount kit. I think it would be safer to see what it actually reads before doing anything with the pulley. Unless you dont mind running 9 psi.

 

i'd want to run as much boost as i can while still being able to stay with the stock injectors (i believe 7psi to be the max recommended with stock inejctors). also i'd rather jsut tune with the FPR, but i'll go VAFCII if necessary. the thing is i have 4.77s as well, so i don't want to run too much boost so that traction becomes an issue.

i guess i could just get a pulley that should give me 7psi of boost and keep it at that. i'm not really hungry for more power because i don't want to have overkill with the 4.77s. just looking to make my car quicker.

 

More power is in the set up with injectors if you search for chairmnofthboard he baselined 308 at church w/ stock vortech and ems, after adding 750 RC's he hit 355, mind you his car is completely stock other than the vortech kit, 750s, and an ems. Sorry I went a little off topic.

 

so you're saying if i put in bigger injectors without even increasing the boost i'll make a significant amount of extra power? i have RC 440s that came with the kit...

 

Thats what was holding his power back the stockers couldn't keep up at higher rpm, I'll have him chime in.

 

hmm maybe i should just put in the 440s since i have them anyway..

 

 

Well a blower will always increase boost exponentially with rpms. By making the blower's pulley smaller it will turn the impellers quicker, therefore you get more boost per rpm. I would say that the injectors are good for around 7-8psi seeing how the Vortech unit boosts i believe 8.5psi out of the box.

 

ok so i should be fine with a 7psi pulley (factoring in some decrease in boost due to FMIC) and stock injectors?