How much can backpressure effect hp and turbo spooling?
06-23-2017, 08:59 PM
#122
It's going to take some serious fab work but I think I can slice the sides of 2 4 inch pipes and mane them fit, then put a cutout any the bottom for the track then continue the dual 4 inch up to the drive shaft loop. I'm kind of screwed from there though
07-13-2017, 11:16 PM
#123
Update.....Wound up squeezing in dual 4 inch downpipes with loudvalves at the bottom that open up at 2psi then merged my old dual 3 inch into them and put in a better cam for my setup. Made 1413 at 21.5 psi. Tried 25 but it blew the tires off the dyno! Backpressure is lower than boost the whole pull and my co2 usage is way lower.
07-22-2017, 06:33 AM
#128
Went with a lil Jon specd cam, definitely spools faster during a pull or run now, on the street it used to take me a couple seconds to see positive pressure, now it's in boost almost immediately after going wot. Still a little slow on the street but that's probably due to being low on rpm when I hit it
