earliest,quick spool turbo for KA-T for 400hp?

[mikesloud]

what A/R turbine is good (Ive heard .48 hot with stage 5 turbine)and is a T3 exhaust side good for early spool? And compressor trim side?

Is it possible for full boost 16-18 lbs at 3300rpm or earlier and pull up to 6800-7000rpm and still make 400-450hp with KA?I am sure it will have to be t3/t4 .

please post your experiences or good power and early spool and reccomendations!

[klattr1]

for 400-450 rwhp, you are gonna need at the least a .63 ar stage 3 wheel turbine.50 trim compressor .63 ar stage 3 t3/t04e will get you to 400 rwhp but that will require at least 20-22 psi and will max out soon after that.

what turbo do you have now?

[DriftFasterThanGrip]

The T3/T4 is really a good turbo with alot of room for configuration and options so you're on to a good start with it. And yes I would have suggested the 50 trim myself. A GT3071R may spool quicker though.

[Nismo_Freak]

what A/R turbine is good (Ive heard .48 hot with stage 5 turbine)and is a T3 exhaust side good for early spool? And compressor trim side?

Is it possible for full boost 16-18 lbs at 3300rpm or earlier and pull up to 6800-7000rpm and still make 400-450hp with KA?I am sure it will have to be t3/t4 .

please post your experiences or good power and early spool and reccomendations!

GT3071R .63 a/r

You'd make 15 psi by about 3600 or so... and it'd make every bit of 450rwhp.

Transient response is alot better than your typical journal bearing turbo.

[4felix20]

i'd like to get one of those gt30 series type turbos, but they're like 1000 bucks...! that sucks.

[mikesloud]

hey Klattr1,I have the big kahuna t4, t04, .58 a/rit gets 15psi at 3900-4100 rpm , I have 14psi low boost , and 19psi for hi, just messing around daily driving. looking for earlier boost and did not know if it was worth the money changing turbos again.only have 4100 miles on it ,put on when new built motor got put in.