just a question to see wat sorta gears ppl are running through an auto, what et, mph, rpm, tyre size, and approx power out put, thanks, mainly interested in 8,9,10 second cars thanks

standard 345 gears, 26x10 inch slicks, 320rwkw, fastest mph i achieved was 128mph.

wat rpm did u cross the line at and et thanks

Not sure on rpm id be guessing mate the shift light was set at 6500rpm and it did not come on when i crossed the line. That mph gave me a ET of 10.8. http://www.youtube.com/watch?v=PEIJOaaKot8

ok thanks mate. ---------- Post added 22-09-10 at 11:11 ---------- the reason im asking this question is i think ive fu?ked my gears, my set up has changed from the start, i got 480isrwkw, 2speed glide, 26x10s and 4.33 gears, dont really wana buzz it past 7,500, think im screwed

345 9.99 @137 limiter set at 7100rpm popped 3 times before finish line, glide & 235 et streets

well thats that im fu?ked. lol ---------- Post added 22-09-10 at 11:45 ---------- wat power mate ---------- Post added 22-09-10 at 11:57 ---------- any idea wat mph this power shud push

300 rears , low reading dyno so hard to say as i dont know enough about the formula, but i think you may have a few dramas ,

http://www.tciauto.com/Pages/418/calculators.aspx

sort of on the same subject, does anyone know what a 25 spline axle is capable of handling before it'll blow?

Quote: Originally Posted by 3lturbo [View Post] sort of on the same subject, does anyone know what a 25 spline axle is capable of handling before it'll blow? Not really part of the same subject, but mine was fine with 150rwkw but shat itself on the first hard change with 250rwkw. That was with manual and LSD, spooled 25 spline axles have been known to snap with standard RB30 NA power

Quote: Originally Posted by NZ EVLHSV [View Post] That was with manual and LSD, spooled 25 spline axles have been known to snap with standard RB30 NA power Except for Diffy, it lasted forever... almost http://www.calaisturbo.com.au/showth...ht=story+diffy (http://www.calaisturbo.com.au/showthread.php?t=90856&highlight=story+diffy) Some original photos have not been recovered yet.

http://racingdownloads.com/racing_software-22.html Down load that and have a play around with diff gears to see what you want

thanks guys. 3:7 it is

Hope you accounted for converter slip..... way different to manual If i was you i would start out with 3.45's and work it out from there. cheers darren

you need 3.7's or 3.9's depending on a small variance on rpm, id go 3.9's and rev it to around the 7 - 7200 mark