kumar75150

I still want to know the highest power an all stroke ls1/ls6 has made.

Just curious.

Seems that all the guy making the big numbers are big bore guys.

383ss

iTrader: (14)

I'm getting a much better set of heads pretty soon. going solid roller too.... hoping to hit close to 500rhwhp. will definately keep you all updated.

CHRISPY

I would go back to the other headers, sounds like they were working better for you.

I would go pretty big on the cam as well (240 intake duration minimum)

463RWHP And 450+ RWTQ is very good IMO.

Cheers,
Chris

TTtop

iTrader: (6)

You can see my 383 dyno #'s in my sig. below. I will be getting a 3" Y-Pipe soon to replace the FLP 2 1/2", so I expect to pick up some more rwhp from that, hopefully get to 470rwhp/450+rwtq.

I asked Jayson at MTI recently about 1 7/8" primary headers, and he said the car doesn't need them yet, just do the 3" y-pipe. He is also going to wideband tune the car which he said should pick up some more power.

Randy

kumar75150

Seems like 455ish is the limit on these with LS1 heads and 470-475 with LS6 heads.

Unless of course you do solid roller or some insane compression.

kumar75150

BTW I should have new numbers by Thursday.

kumar75150

down the line, might try that along with a reverse split

kumar75150

made 478 rwhp with the new cam. Gained hp and tq all above 5100rpm, no underdrive pulley. I oculdnt justify 400+ bucks on the ATI for almost no gain. Below that, I lost some significant power though.

I am going to try some 1 3/4" headers and the 1 7/8" I have right now back to back on the dyno to see how it compares.

alexWS6

Have you ever thought about trying the new LG headers?

kumar75150

Yep I have. Problem is they wont sell them w/o the 3" mid pipe. I already have everything 3" from the headers back that I had to do cutting and mods to make work and I cant get rid of it.

I would definitely try them if they would sell just the headers themselves for a lower price.