JTJUDGE

not long sold my r33 gtr with 420bhp. I took a jdm sti hawkeye as px but put it on pistonheads as I was looking for something rwd.
Ive since had a few spirited <bollocks to that> fast b road days out with similar minded friends and I must say Im begining to get a good feel for the car now and the tuning bug is begining to get a grip on me again.
The car is running 350bhp right now. Lets just say I decided to keep the car and to go for 450bhp, what would your recommendations be?

current spec
miltek down pipe
spec c exhaust no cats
tmic
been mapped but not sure who by
new exeddy clutch
twin scroll turbo but not sure which model vf37 ?

cheers

Markfey

iTrader: (7)

I think we've all seen your add on PH and just wished we had the money!!!

I think first thing first is to get to your ECU and get the serial number from it and try and speak to the mapper. He may recall your car and what was done, needed to be done or even suffered with.

Once that is done the list will be endless.

JTJUDGE

Ive been using it as my daily but the other day was the first day I took it for a proper spin
its no skyline gtr but thats not a bad thing now that I have a feel for it.
So what will I find from the mapper ?

Markfey

iTrader: (7)

I had a GTR 33, i really don't miss it unless the road is straight, warm and dry

The mapper, if he remembers your car will be able to tell you when and where it was mapped and possibly to what result.
If it was done recently he may be able to tell you things such as the injectors/turbo/fuel pump etc were at full capacity and that will give you a good idea of what to modify next.

I forgot to mention earlier. Find a well known and respected specialist and take it to them for a really good service. It's amazing the horror stories we continue to hear on a daily basis about what owners and previous owners have done to their cars.

JTJUDGE

cheers. It runs very smooth and has good power delivery at 3000rpm but could be better imo
serviced as soon as I got it, full fluid change as well. I would be changing the fuel pump and injectors anyway purely for piece of mind.
water pump and cambelt etc getting done next week

jura11

iTrader: (7)

Hi there

Personally I would contact few Subaru specialist in your area and from this I would go and decide what to do next

But if you are looking at 450bhp:

Turbo: you have Twin scroll turbo which means you will need TS turbo like SC42 TS or SC46 TS,MDX321T TS,LM 450

Injectors: 650cc or 750cc Top feed injectors

Fuel pump: if you are still running Spec C fuel pump,this should be OK,but for piece of mind have look on other options like HRC,RCM or genuine Walbro etc

Not sure on clutch what are you running,but speak with Alyn@AS Performance about the ACT,AP,Exedy or other options

If you are looking to upping the bhp,have look too on the brakes and suspension,you can have big power,but without the control is pointless to upping the bhp

Hope this help


Jura

ditchmyster

iTrader: (7)

I noticed your in glasgow, there is only one person you need to speak to.

Andy Forest Performance.

THE END.

g7prs

iTrader: (5)

Andys guides give you an idea of what's needed

http://www.andyforrestperformance.co.uk/58963.html