running 530 from the standard ecu without any problems and can go more if i wanted ,, very good ecu in the hatchback

 

forced performance turbos are very good and cost less than uk ones with similar spec ,, iv had to many bad experiences with scoobyclinic turbos to buy one again

 

don't run one on mine at 530bhp just a 3 port boost selonoid

 

Andy did mine on 20% Bio-Ethanol in January,

& the lower one 2 years before on V-Power

2003 Sti, stock ECU, Stock Internals 2.0

Didn't need an AVCR either.

My Turbo is an SC42/Blouch that got damaged then re-machined & rebuilt by Owen developments with bigger billet wheel to M-Spec, sure they can supply the FP range and also do their own range now.

 

Will need to ask him why he want one for 450 and not 420 see what he says

 

Interesting thread, any updates?


I'm on with 2.5 built motor with a MD321V, all the usual supporting parts but remaining with a TMIC for the moment (funds are dry).

 

Engine away for decking decided 420bhp should be enough just dont know what turbo to buy
Md321t
Sc42
Fp green

 

http://www.bptstore.com/Subaru-WRXST...er-_p_122.html

Could try one of these

 

Ask John at Spool?

 

cant be bothered with the hassle of importing cost/wait to save about £200

 

I've heard good things about the Forced Performance turbochargers. Seems the guys in the states are pushing over 500 on a standard position, which allegedly are still very lively and driveable.

 

Domino on here has a fp red running over 500 im looking for one to do about the 420 so the red is to much

 

Not just the savings there are alot more stock location 400+ Blouch Turbos other than the SC42 & 46 off the shelf in uk.

Owen Developments have their own range to now I'm sure as well as source those FP ones too

 

I believe (stand to be corrected) there all allsorts of different rated versions, some are good for 1000hp, some are a direct replacement for a standard VF35/48 etc, so the choice is quite simply up to you.


However there is nothing wrong with the others you have looked at. As have you, I've had a few Impreza's now. Here are some that I have run for food for thought.


SC42 on a 2.0L was a good turbo, especially on meth. On a 2.5L it'll be very lively, but would imagine it runs out of steam with plenty rev's to go so you might find its a little too small - only guessing of course.


GT30 standard position I ran on a 2.0L too, managed 430bhp but was too laggy, ideal for a 2.5L I am sure.


S206B standard position I ran on a 2.1L stroker was close to 500bhp, perfect combo, probably would be even better on a 2.35/2.5L. It was very lively and fun to drive.


Robert

 

Aet have got back to me about a gt3071r saying good for 440bhp

 

Coming from a sc42 one myself id say get one of them for just the way it drives (angry little turbo) im pretty sure i was in the region of 440 when we finished tweeking at 1.7/8 bar.
I even bought another they are that good for what I wanted, but ive slightly changed tact again.
For that power region, its a no brainier for me.

 

Had my classic mapped last week. Turbo technics s206 on my 2.5 scd, pinned .

 

I never ran one on a 2.5 Peter so I cant comment, but have read very results. I'm fairly sure some of the top 20 Scoobynet power leadboard guys are running GT30's from memory, might be rotated though... that thread needs reviving


If a SC42 will deliver that power I would say that would be worth trying, I can imagine it would be very lively - and you have one for sale I think you said

What did you think, what was it like on the 2.5?


Is this Pump fuel only? what ecu?

 

yeah I have a standard position FP red (none billet version) , made 530bhp on v-power @ 1.75bar ,,, very impressed with it ,, brought there inlet pipe to match there front housing and it all works very well ,, and is a lot cheaper than most of the uk ones of similar power

 

Hi Rob. Feels really good . 1.75 bar in 6th@ 3.5k revs on hawk Sti box. . Was gonna try a precision billet but not sure what i would gain Cheers maz

 

It sold rob for asking price, im upset lol. But im only going ‘slightly’ bigger as I want to gain that spool the sc42 had

 

the S206 I had was standard, then it was refreshed with billet, think it was around £275 plus remap, so definitely worth the plunge later. Car was never Dyno between, so no idea what the difference was.

https://youtu.be/D1oZ11EFJ04

What you gone for bud? Mine is getting put back together next week, 321v twin scroll, can't wait.

 

Not saying yet mate
None of the obvious choices

 

My Gucci parts have landed
Arrow rods and omega pistons

 

borg ?
precision ?

 

Cold.

 

Kinugawa? 😀

Sc46 ?

 

Not playing.

 

lol

 

twin scroll ?

front mounted turbo ?

come on yaaaarrrrrrrrrrr