4AGE Turbo sizing

[wattsys86]

hello,

i was wondering if anyone could help me with choosing the right sized turbo for my 4AGE. it needs to run 14 to 16 PSI, cos thats wat the engine is built to support. any advice would be much appreciated

[reecegze]

Theres alot of info on turbo 4's here .. I would recommend t25g t28, tdo4l, ct26 or even stock t3 r33 turbo. Check out hypergears turbos if your after budget and reliablilty.
Ive got a good condition t28 bb that i am wanting to sell , let me no if your interested after 300ono

[44GTE]

Hi

I am running a HKS 2530 on mine and works a treat down low from aroud 3300 and pulls hard still at the top end.
Put out 172RWKW at 16psi but was limited due to shit pipe work and kept poping off a hose.

cheers

[R&D Mechanical]

You should see the compressor map with a T25, belive it or not its too big lols surges alot

[lloydious86]

t28 bb is on my 4agte runs 16psi and made 260hp atw for drift application , minimal lag and doesnt run out of puff just keeps boosting right up to 8,500rpm there common for parts/rebuild also

[Sam-Q]

By the sounds of it the S15 BB T28 is the most commonly used turbo for 4a engines. I have yet to hear anything bad about the combination

[wattsys86]

cheers for all the advice, i was thinkin s15 turbo but i wasnt to sure if it would reliably run the boost im looking to run. ppl kept telling me different things lol

[DX20VT]

That would be a good turbo to use,
I used to run the non-BB S15 T28,
but was also looking at an Mitsi EVO 3 Type turbo also as an option.

[Sam-Q]

so some of the S15's came with twin ball bearing centers and some didn't? how did that work out for you anyway?

I was going to run a TD-05 off an evo I don't know if it was off a type 3 though

[Touge Boy]

I was of the understanding EVO turbos ran a .43 rear housing and were all T3 pattern?