View Full Version : rb20det

04-15-2010, 03:49 PM
some guy sent me this on facebook about his skyline gtst

a built rb20 block, stock head,bore and stroke , apexi head gasket matched, ported etc. hi-flowed neo 6 turbo so its something like .64 ar comp side with a 50 trim, with a .86 ar exhaust, steel wheel, ball bearing etc, a lot like a 2876r but lower spool and full boost around 3200.... 3.5" back exhaust.. trust front mount blah blah.. the works.. It's a pretty basic build, and still at 11.2 afr, and 14 lbs of boost.. 320 whp.. No cheesey exaggerated mustang dyno either.. She's pretty solid!..

does this make sense.. i dont know shit about rb20 only sr's .. how is the block build if its the same bore and stroke?? and he also mentions no work on the head or block and he got that... i mean i got an s15 turbo.. 550cc, z32 maf, 272 cams, fmic, 3 inch exhaust and running at 17 lbs and i barely got 300 or so to the wheels out of my sr

04-17-2010, 10:47 PM
no one can verify

04-18-2010, 07:56 PM
sounds reasonable. The only thing i question is the fueling and ecu (or controller).
The rb20 injectors and maf cap out at around 14 psi (for the maf) and 300 hp for the stock injectors. Not that it can't be done but your just running the injectors at 100% and if something happens then it may go POP!

04-18-2010, 11:14 PM
i believe it.
i have a rb25 stock turbo and injectors, 3" turbo back, pod intake, freddy plenum, fmic i made 315whp at 12psi.