jdsf5

What power can the internals take then? And what have people taken them up to ?

chrispy200+

iTrader: (2)

GRD had one up over 500bhp which never blew up, ended up getting stripped for parts in the end though

Moley

iTrader: (9)

450bhp happily, there are a fair few over 500bhp with no issues

banny sti

iTrader: (68)

I ran 522.5 bhp no problems

L.J.F

iTrader: (31)

They are good for upto 500bhp as long as they have been looked after properly.

jdsf5

Didn't realise it could be done but iam guessing the cost for a good 450 is prob as much as the car owes me thanks people

L.J.F

iTrader: (31)

It will cost over 5k to do it properly

Stevesbluewrx

iTrader: (4)

I'm on a v7 STi engine. Mine is running everyday at the 450bhp mark and high boost map with 18% meth at 482bhp.

More or less the same to be far.

Treat it well and it will treat you well in return.

jdsf5

So then price wise for a healthy 400 - 450 bhp what would be needed and cost if I was to source bits 2nd hand ?
Thanks

Scooby B

iTrader: (2)

Essentials:

Turbo.
Injectors.
Exhaust system.
Uprated fuel pump.
remap.

You may also want to consider going with a front mount intercooler, and you will need a aftermarket induction kit. Some guys have gone way and beyond 400 on the top mounts though.

There are loads of other things you can add for a few extra horses too, and for safety reasons, like:

Aftermarket ECU.
Uprated headers.
Fuel pressure regulator.
parallel fuel rails.

List goes on really.....

stealthy55

534/38 on zens rollers not a dyno dynamics, make of that what you will,engine was still going strong, right up till it was removed to make way for a proper engine, 2 different mappers both achieved over 530 other mapper did it on a dd roller but not interested in that particular figure

jdsf5

Good figures all round , could someone do me a price breakdown wouldn't buy new child due to be wed etc etc but fancy a bit more out my blob, I miss my classic too much lol