Quote: Originally Posted by grunter01 [View Post] last time o spoke to you which was nearly a year ago he was nearly ready to make his own wheels? is he finally doing it or is it still a long time away? spoke with mark 3 weeks ago the cnc should be all go by now ,the billet wheels are more than just billet ,they have alot more material taken out of them, which l suppose is a mod, l have seen stock wheels, and 1s mark had done else were,while waiting for his cnc to get here ,and being billet thier alot stronger than a cast , ---------- Post added 06-11-12 at 21:16 ---------- Quote: Originally Posted by HTURBO [View Post] Pigsy what are the main differences between the cast wheels & the billet wheels. Are the Torrence's any different? they are stronger and lighter tolerrence's are the same as far as l am aware

Well guys it seems that the 7175 not be big enough the power and boost im willing to run, Someone suggested the 7675, Anyone used or or have a rough idea on spool time on a rb30

Depends on your manifold, cam, SOHC or Twin cam, Compression, Displacement (3.2 or 3.4 stroker etc), tune and whether you use 2step, but it should theoretically spool faster than a GT42R since the rear wheel is smaller, and then youve got your housing sizes too.

6boost manifold 26 head 274/278 cams 8:8:1 compression 2step yes (although it's in a r32 GTR for street) Only rb30.

Jet3lt gets full boost on a gt4202r at about 5000rpm,which if the 7675 spools up earlier I'd be very happy to put it on my car. My car is also used as a street menace nothing else but will run it down the 1/4 every now and then.

With that compression it should spool alright, im planning on running one that size on my RB30 SOHC with 7.8:1, manual. Mine will probably be a laggy POS on the street but i'll just deal with it. Yours would be alot better being twin cam also.

I'm still ummm and arghhh about the 7675, Might just go 7175 and not be to greedy with power, Will be pretty responsive and a better power ban through the rev range

I just got my precision turbs for the R31..should be good! cheers darren

Let us know the results and response jetr31 !

Daz turbo will b nuts! If your chasing a precision turbo than as daz said, hit conte at rsp up He ships out by ups and only takes about 3days to your door And he is priced very well! I'll b ordering a 6766 jb turbo from either him or Titan very soon

I might be keen to sell my 7175 cea?? Tossing up going something bigger.

How much? Ballbearing? An what size rear?

Mmm $1700, yeah ball bearing, billet wheeled. Open entry .94. Hasn't done 500km's!

I still got quoted 2700 for a BB 7675 CEA with the GT42 compressror housing, dont know why its so much more expensive than the housing without the surge porting...

Could be keen Shermen although I was wanting a .98 split rear but ill get back to you. Ash where'd you get quoted 2700?