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Gt35r 0.68 A/r On Rb25?

SLYDA

By SLYDA,
in Engines & Forced Induction

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TiTAN Grand Master

TiTAN

Posted
Posted
Hmmmm shall I go eat my hat now???? what cam's and exhaust mani you guys running to get spooling that much quicker. I know mine is not 100% finished but I wouldn't have thought you could get it on the boil 1k rpm earlier. But obviously you can.

4" intake pipe, 4" dump pipe, ETM steam pipe manifold with 50mm external wastegate, stock cams, greddy intake manifold, Q45 throttle body, 3" intercooler piping/cooler. engine is also running 9.3:1 compression that might help a little.

urtwhistle Proficient

urtwhistle

Posted
Posted

Hmmm ok it's starting to make sense now, I'm running stock Neo exhaust mani and intake. 2 1/4" inter cooler piping. 3" intake. 2.5"Vband straight onto 3" dump and its internally wastegated.

I might fit my ex cam gear and pretension the waste gate a touch more. that Comp ratio would have a damn big effect too.

Cheers guys!!!

bubba Grand Master

bubba

Posted
Posted
Hey, I got a Rb30/25 with a GT3576 and even on the 30 it still takes till 4500rpm to hit 18psi. sooo a 3582 on a Rb25 is deffinitly going to be slower.

Chris, you can't compare your turbo to a real GT35R. Have a look at Titans' GT35R'd 3L, that's what should be happening and mine should be pretty well the same :)

T04GTR Grand Master

T04GTR

Posted
Posted

supprisingly docile. my missus car.gt35/.63 rb25. 252 ponams and a haltec made 340kw on 22 psi. was really boring to drive. no big rush just a smooth delivery. with quite abit of lag between gears.

(the t04z thats on there now has less lag between gears.)

made full boost just before 3500. but slowly. not nothing then 22 pound. it built gradualy from 2.5k

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