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 What to change to get closer to 400bhp?

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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 19:41

The hatch WRX is booked in with Bob again the end of the month, Andy K will fit a SC40 for me first, I am also thinking of gutting the TGV's , but what else?
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atwrx

atwrx

Posts : 1359
Join date : 2011-01-10
Age : 36
Location : Looking over Mario's hedge

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 19:48

Aren't you pushing your gearbox at that as torque will be similar
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 19:50

Yes mate when it goes it goes, I will either 6 speed it or go for the helical synchro kit.
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atwrx

atwrx

Posts : 1359
Join date : 2011-01-10
Age : 36
Location : Looking over Mario's hedge

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 19:52

Anyway, induction kit, injectors (don't know what's on yours) 3" Decat exhaus, intercooler (poss, not sure what yours is capable of as standard)
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Marshffs

Marshffs

Posts : 3332
Join date : 2012-02-19
Age : 34
Location : Crook, county durham

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 19:55

Would of been cheaper buying a STI in the first place if your thinking of 6speed. But then again qe always swap and chamge stuff and then work oit how much its come to and you think FOOKING HELLLLLLL.
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 19:59

Current spec its running is forged pistons, VF 43, cosworth induction kit and perrin intake pipe, 3" decat downpipe with 3"nur spec cat back, 3 port boost solenoid, standard headers ported, FMIC, I believe the injectors are now the same in STI and WRX, but not sure what they are capable of?
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 20:03

Marshffs wrote:
Would of been cheaper buying a STI in the first place if your thinking of 6speed. But then again qe always swap and chamge stuff and then work oit how much its come to and you think FOOKING HELLLLLLL.

I know mate but I am in to deep now. Laughing
I was thinking of cutting my losses and selling up for a classic type R, but I will lose to much on the hatch. Crying or Very sad
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garyblake

garyblake

Posts : 3603
Join date : 2011-11-27
Age : 37

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 20:44

Marshffs We're the fun in that :-)

more fun making your scooby to what you want step by step

I ran pink in mine and were near max on 381

Hawkeye blue are bigger and will see 400
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garyblake

garyblake

Posts : 3603
Join date : 2011-11-27
Age : 37

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 20:51

Tgv mate

Up pipe for faster spool ? Harvey smith

Fuel pump the

Seem you there on spec

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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 20:52

I think the injectors are 565s ?
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 20:57

Sorry forgot its already got a HRC fuel pump in, I think Andy ported the up pipe slightly to match the headers. Do the up pipes make that much difference? I would of thought as long as they are not catted then they are ok?
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byers

byers

Posts : 3378
Join date : 2011-02-19
Age : 41
Location : Hpool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 21:31

Ive got some deletes here

__________________________________________________
"Speed has never killed anyone; suddenly becoming stationary...that's what gets you." - Jeremy Clarkson
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byers

byers

Posts : 3378
Join date : 2011-02-19
Age : 41
Location : Hpool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 21:33

Them injectors will see 400

__________________________________________________
"Speed has never killed anyone; suddenly becoming stationary...that's what gets you." - Jeremy Clarkson
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyWed 4 Feb - 21:40

Don't think they are the same mate, the injectors sit different.
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atwrx

atwrx

Posts : 1359
Join date : 2011-01-10
Age : 36
Location : Looking over Mario's hedge

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyThu 5 Feb - 8:48

Looks like all you need now is a turbo and 6 speed. Why only an SC 40 if you've forged? SC46 is supposed to be a great turbo for the 2.5
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyThu 5 Feb - 9:36

The SC 40 is cheap! Laughing
And the engine is only built for 400 mate, standard parts apart from the pistons.
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Steviedoo

Steviedoo

Posts : 2691
Join date : 2010-08-06
Age : 45
Location : Saving up for a new Scoob ???

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyThu 5 Feb - 10:21

Think you'll need to go fully De-cat if your wanting 400 as the cats are too restrictive once you get upto that sort of power.
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyThu 5 Feb - 11:06

It is fully de-catted mate, 3" downpipe and a blitz cat back but it has a resonator in the centre section and a massive back box so its pretty quiet, I hope it is not restricting it too much?
I am thinking of going to a straight through centre section and single exit back box instead of the quads I have at the minute.

What to change to get closer to 400bhp? 56

What to change to get closer to 400bhp? 40
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atwrx

atwrx

Posts : 1359
Join date : 2011-01-10
Age : 36
Location : Looking over Mario's hedge

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyThu 5 Feb - 11:37

Well Bob Rawle told me that the Nur Specs were poor for getting good power when I changed mine.
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyThu 5 Feb - 12:06

atwrx wrote:
Well Bob Rawle told me that the Nur Specs were poor for getting good power when I changed mine.

I think the hatch system is a lot different to the older systems, but you could right?
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyThu 5 Feb - 12:07

Its currently running 350 and 385 with this exhaust.
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chrisw



Posts : 206
Join date : 2014-01-22
Location : chester-le-street

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyThu 5 Feb - 12:48

This is the spec jonny had the car I have now built to. Thats running just under 400bhp and about 410lbft.
Killer B sump baffle plate
2.0 sump conversion
HRC 340lph Fuel pump
Toyosport exhaust system.
TD05 20g billet turbocharger
Ported TGV deletes
Hawkeye STI inlet manifold
Hawkeye STI intercooler and Y pipe
K&N typhoon short ram induction kit
3 port boost solenoid
Air pump removed
Genuine HKS SSQV blow off valve
Throttle body coolant delete
Header tank insulators
ported headers and up pipe
NGK ILFR7H spark plugs

This is on a hawkeye wrx with a similar forged job to yours. So probably pretty close to what you're after.
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carl08

carl08

Posts : 775
Join date : 2014-01-28
Age : 40
Location : Hartlepool

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptyFri 6 Feb - 10:34

chrisw wrote:
This is the spec jonny had the car I have now built to. Thats running just under 400bhp and about 410lbft.
Killer B sump baffle plate
2.0 sump conversion
HRC 340lph Fuel pump
Toyosport exhaust system.
TD05 20g billet turbocharger
Ported TGV deletes
Hawkeye STI inlet manifold
Hawkeye STI intercooler and Y pipe
K&N typhoon short ram induction kit
3 port boost solenoid
Air pump removed
Genuine HKS SSQV blow off valve
Throttle body coolant delete
Header tank insulators
ported headers and up pipe
NGK ILFR7H spark plugs


This is on a hawkeye wrx with a similar forged job to yours. So probably pretty close to what you're after.


Nice list!
Most of them are ticked off but I might keep my eye open for a inlet manifold.
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chrisw



Posts : 206
Join date : 2014-01-22
Location : chester-le-street

What to change to get closer to 400bhp? Empty
PostSubject: Re: What to change to get closer to 400bhp?   What to change to get closer to 400bhp? EmptySat 7 Feb - 20:35

One mod which I would definitely recommend is the gear linkage bush kit from as performance. It's only £60 and massively improves the feel of the gear change on the 5 speed. Makes the box feel much tighter and the changes more precise.
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What to change to get closer to 400bhp? Empty
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