jordoza777

iTrader: (2)

would twin 0n3 70s with .63 a/r turbines be to large for a lsx376 with ls9 cam. my goals are 800 rwhp at 6000 to 6500 rpm. what rpm would they spool up at. i saw a few threads on here where they were put on 5.3s and 4.8 but they spooled late like 3800. id be happy with 25-2800 rpm.

wicked z28

iTrader: (9)

Curious as well, im doing twin on3 70s with .81 ar on a 408 stroker.im hoping for 800 rwhp with a custom cam.

On 3 Performance

We have customers running our On 3 60mm turbos and making those numbers. So the 70's are going to be more than enough, thats easily a 1000 rwhp + combo

It depends on your budget, I think the ceramic ball bearing 60s would be a great combo for you but its going to be $1300 in turbos. I have journal bearing 61mm turbos, I can do that for quite a bit cheaper, its going to spool up quicker than the 70's and certainly meet your goal. The 70s are going to leave you more room to grow, just depends what your planning on doing. Any questions feel free to run them by me, on3performance@aol.com

Chad

jordoza777

iTrader: (2)

would you happen to have spec sheets on those 61mm turbos and are the the same footprint as in external size as the 70s.