Adma-RA

iTrader: (1)

It's time I started thinking about what bits to gather for my engine, I want to build something that'll work well with a 34mm restrictor in one turbo and also make good reliable power with a different turbo. I'd like to see near 400bhp in unrestricted guise if it's possible without spending a fortune.

What I have so far -

'02 UK STI short motor, requires a piston so will fit a new set - any pointers on what to go for would be appreciated, and are the rods any good?

2 sets of V3 STi heads, I hear these have a good set of cams in from the factory, are there any other things worth doing to them (porting etc)?


I've been advised that a VF30 would be a good turbo to work with the restrictor, but don't know what to go for for derestricted power. Any pointers?

Finally, as I don't have an inlet manif as yet I'm thinking the STI RA manifold with 5th injector would be good and fit the V3 heads - am I right in this?


Sorry for all the questions, new to this turbo malarkey!

Many thanks,

Adam

Adma-RA

iTrader: (1)

Update - I've now got an STI RA inlet manifold with the 5th injector, and a VF30 to use with a restrictor.

What loom do I need to work with this inlet manifold? IE is it specific to an STI RA or are the classic STI's the same?

Ta,

Adam.

WMS

iTrader: (2)

HI, firstly the most commonly used turbo with a restrictor is the VF34, a very very good spec engine, high comp with WRC cams etc should reach 330bhp ish on 102 rally spec fuel. In your spec with V power I would say 280bhp is pretty good. Unrestricted a td05 20g should see you toward the 400bhp mark, there are many other turbo's available depending on budget. I wouldn't bother with the RA 5th injector manifold as it's not used/needed.

Adma-RA

iTrader: (1)

I think I can live with the slight extra lag of the VF30 over the VF34 at least to begin with, they're the same compressor and exhaust housings after all. Maybe I should've explained a bit better, I'm starting off with a bare caged shell so I don't have any parts bar what i've said above so I'm buying things as I go along.

Short motor wise it'll be having a rebuild before going in, but I'm wondering do I upgrade rods and/or pistons or use new OE spec parts if I want to use a TD05 20G to it's full potential?

360ste

iTrader: (1)

If you are getting the engine rebuilt go forged as it will save money in the long run.

bustaMOVEs

iTrader: (31)

Simlar thread ATM https://www.scoobynet.com/scoobynet-...or-400bhp.html