General LSX Automobile Discussion - Need help with 383 set up
10-12-2008, 11:40 PM
ok I have a 383 with callie rods crank and JE pistons livernoise stage 2heads that flow like 305 a 244 248 612 615 112 cam and a fast 90 stock fuel pump and maf and mac midlength headers..........car made 470hp and 426 torque
I have an ls6 maf and I just ordered a fuel pump
I want to break 500 maybe 510.......
should I do Kooks 1 7/8's or 1 3/4?
Trickflow heads, 215cc, 225cc, or 235cc?
and i'm goin to get a 92mm no matter whats.......please throw in some suggestions!
10-13-2008, 07:47 AM
better heads should do it. the TF 215s should make great power across the board, not sure how the 225s would work, but i doubt they would be BAD for the engine.
and why waste money on upgrading the FAST? spend the money on having it ported. you'll see more with that than the 2mm increase in mouth diameter.
10-13-2008, 09:04 AM
get an underdrive pully 25%, meziere, tfs 215....check out my list...532 rwhp/472 tq
10-16-2008, 11:15 AM
What are TFS heads? Trickflows i'm guessing.......sorry don't talk on the forum much lol
so should I do 1 3/4 or 1 7/8 kooks would you really lose more low end?
10-16-2008, 08:21 PM
what are the specs on the heads you have now? Couldn't you just have them taken a little further rather then have to purchase another set leaves more money in the pot for other parts. That you don't already have
10-16-2008, 08:44 PM
Just with long tubes dumped and a "good" tune, you should be very close to 500.
And like stated above, if you want just a tad bit more. Take the heads out a little bit more.
That should break 500 for sure.
10-21-2008, 12:27 AM
well they flow 300 to 305 and have 64cc chambers they are livernoise heads I didn't knwo if trickflow had some special port design or something because everything i've seen with those head makes great numbers