jamielove69

iTrader: (2)

i got a STI v4 with:-
3 inch decat, 3 inch straight through blitz R
simtek ECU
walbro fuel pump
k&n panel filtre
VF34 ball bearing turbo


any suggestions?
what size injectors will i need?
im gona need a bigger turbo arent i!

cheers

MarkC

iTrader: (12)

yes you will need a bigger turbo like a md321h billet or a genuine td05 20g. 740cc injectors, adjustable fuel reg, ported headers and up pipe, induction kit, fmic, uprated clutch, tweak map. eventually you will need a 6 speed conversion. Is your engine forged or standard?

Bez300

iTrader: (2)

Hi bud.

700cc injectors would do.

MD321h turbo would be good for 400 & they are a fantastic turbo.
Bigger intercooler.

is your engine forged?

And a new gearbox with that power, the 5 speeds are only good for 350

Another way of doing it is to go for 350 which is safe on std internals and 5 speed gearbox.
& get the car on a diet, Air con out 33kg
ABS pump out.
some bucket seats.

A light STiV4 with 300bhp would keep up with a heavy newage with 400 bhp.

but the diet way might not be what you want.
I'm sure others will be along to offer there advice as there are many ways to get 400.

Good look

Bez

jamielove69

iTrader: (2)

standard at the mo. will get v9 rods and forged pistons i due course
what clutch do u fink?
i got fuel pres reg, ind kit.
was finkin bout gettin tmic from a later model coz the lag on fmic's apparently...
wont 550 injector be enough then?
thanks

Bez300

iTrader: (2)

http://www.competitionclutch.com/
I am running one of these 6 paddle which will cope with 250% more torque than std but they do other clutches.
if you go Hawkeye 2.5 sti top mount that will cope with 400
550 don't think it would be enough, 700 to 740s as Mark said.
Front mount intercooler with an MD321h and a good map will have very little lag. then when you have your 400 & you want more, you already have the intercooler for the job.
Unless you go for a Hyperflow top mount
http://www.hyperflow.com.au/
Then that will cope with 500 and no lag,

Bez

jamielove69

iTrader: (2)

fanks for the info guys!!!
fink i better get the clutch and gearbox before i get the mods!
what gearbox? any1 got i code so i can look up prices etc

j999jmp

Legend

Fanks = Thanks

Fink = Think

any1 = anyone

:-)

stef_2010

iTrader: (3)

http://www.andyforrestperformance.co.uk/58699.html

TonyBurns

iTrader: (3)

If you have 10k spare then you wont have a problem getting the car to 400bhp, you need alot more than just pistons and rods though.

Full engine rebuild with all the uprated parts, circa 4k
Uprated clutch 500 quid+ for a decent one
Uprated or ported headers, 300-500 quid
Uprated brake setup 1k
FMIC 300 ish quid
Gearbox (as the one you have wont last) PPG 5k, 6 speed 2.5k, scoobyclinic gearset 3.5k
Turbo, 500 quid for a 20G 2nd hand
Mappable ecu, ie simtek 1200 quid mapped

Ive missed a fair bit out there, adds up though doesnt it?

Tony

jamielove69

iTrader: (2)

im not lookin at doin it all at once.
if im gona do it then its gona be done properly

Bez300

iTrader: (2)

Sounds to me like your doing the right thing. Asking the questions / advise.

I just went out there and did the modifying, got it wrong, tried again, got it wrong, now I know to ask, and cheap is not always best..
350 is so much easier than 400, if your going to go for 400, for a few more pounds & 500 would come easy.

As Mr Burns said on his list, there are some things missing.

But go for it bud

Bez

harvey

iTrader: (48)

550cc injectors will get you close to 400 bhp or thereabouts. 740cc will take you a long way past 500 bhp.
As your gearbox is likely to break it would be in your interests to have a TY754 gearbox in reserve so that you don't suffer down time when the inevitable happens.
With all supporting mods your current turbo can run all the way to 360 bhp.
By 320-330 bhp your are severely hampered by your top mount and your best option is an efficient front mount such as a Hybrid GT or Hybrid GT2.

dynamix

iTrader: (3)

550 will get to 400 with the fuel pressure regulator but they will be running close to max.

Turbo for definite - 321H would be my choice
As harvey says FMIC will give it the best chance of making that power.

Most of your money will be spent on safety for engine and changing stuff like clutches, gearboxes that wont cope with that power - fair chunk of cash there !

MartynJ

Might be something to do with our conservative rolling road,lol, but every set of Classic 550cc injectors I have seen even with a Walboro and an increase in base fuel pressure has maxed out at around 360-380bhp. Just put 740s in and save yourself the hassle of doing it twice. Saw it happen again last Saturday whilst mapping a SimTek equipped 2.5 with an 18G on a S4U twisted kit.
My personal choice of turbo for you would be the SC40 Billet as it comes in £300 cheaper than the MD series turbos, yet lacks nothing they offer.

Martyn

P1Drifter

iTrader: (7)

thats a 20g martyn
got a set of RCM 850's going in now

joz8968

iTrader: (13)

Yeah, but a modded 20g with 30% lighter billet comp wheel (and ball-bearing, I think?). Every little helps.

TonyBurns

iTrader: (3)

Getting it done properly is definately the right way but your going to be restricted to how much you can do without spending a **** load of cash unfortunately

Items like the brakes are a no brainer, can be done anytime and I would go for this first, the engine, hmmmm well thats one of your biggest payouts, you can do this 2 ways, the normal or the more expensive way, so have the engine rebuilt with all uprated parts but dont add the injectors, turbo etc, and your clutch will need adding at this point unless you want to cough up more cash later?

The hassle is that this is about as far as you can go, but its still a big layout cash wise, and anything else that needs doing (turbo, injectors, fmic, induction, after market ecu and map) are going to increase the cost of your build due to going over old ground as we shall call it, so your really better off doing the lot together and saving a heap of time and cash because it will probably add a good 1k to the cost in labour etc

You could just go and get the after market ecu and have the car mapped, but then remapping later will cost you extra... bit of a no brainer tbh that its best just paying it all out in one big lump sum or selling up and buying a new age JDM and having the 3.5k LM series turbo (the 400 or 420) added, trust me it will make for a faster car than the type R even if it is heavier.

Classics really are not a good car to take to 400bhp reliably for not much cash, you have to throw serious money at them when you can buy a car with all the bits already on there and which is considerably newer (and wont be rusting around the rear arches costing you a packet in resprays ) and better car.

Tony

MartynJ

Apologies Ric, thought you said it was an 18,
Looking forward to getting back on it. Missfire all cleared up ?

P1Drifter

iTrader: (7)

no worries, not really pushed it yet, overtook someone yesterday got to about 6k and no miss so fingers crossed. Sorry to hijack but i don't suppose you have any injector caps for these PE850's lying around do you martyn ? one snapped around the bolt hole when i tried fitting on Thursday, hence why i couldn't make it down on Friday, tried rcm they couldn't help and told me to glue it back together !

MartynJ

Yes, I can probably help out there. Give me a ring on Monday morning and I'll have a look around.

Bez300

iTrader: (2)

If you are wanting a 74 gear box, I have won. with a light fly wheel, 6 paddle clutch, 650 rated ,Titan plated front & rear diff., cradle Short shifter. at a cost of over 4k to me,
up for 1k. no offers, if you know what you are looking at, you will know how much it costs.

bez

jamielove69

iTrader: (2)

cheers guys...
hmmmm decisions decisions.
i think 350bhp is more ideal for me with this car without forking out too much money.
i think id rather pump the cash into a later model.
unless i can get a good price on gearbox and turbo
next addition has to be a decent clutch!!