Rb25/30 S15

[666200]

Iv got a rb25/30,

Series 1 rb25det head with an A6 rb30 bottom end (standard internals).

the car will be used on the street, im looking for 300 to 350rwkw.

Which turbo would be a better application gt3076 or gt3582 ?? When will the 3582 come on to boost roughly ??

[34GeeTeeTee]

Go the newer style billet turbos for the best of both worlds... For a street car either turbo will be plenty!

[niZmO_Man]

http://www.sau.com.au/forums/topic/104332-rb30-hybrid-upgrade-all-dyno-results/

[PranK]

It might be best to ask these q's in Forced Induction Performance.

[666200]

Thanks nizmoman will do 34gtt

[666200]

By reading that seems like i should maybe do forged pistons and rods if i want 350rwkw .. thought that might be the case

[34GeeTeeTee]

By reading that seems like i should maybe do forged pistons and rods if i want 350rwkw .. thought that might be the case

Not entirely accurate... The limit of the engine depends on the supporting mods and most importantly your tuners ability...

I have been running 350+ rwkw on road and track for years with a stock engine and stock headgasket... So do your research and pic your shop/tuner wisely!

Plenty of good ones out there with proven reputations but also plenty of sketchy kents too!

[Gts-t]

Sell it and build a sr20/22/24vet.Or just build up the sr20det. Dont take the advantge of a silvia ie the balance/handling of the car and ruin in by putting a big lump of cast iron 6 cylinder sticking way out beyond the strut towers. If you want that buy an skyline.