Opinions And Input Please

[JonnoHR31]

seems reasonable to max stock injectors near 200rwkw

i can see peak near %90 with 193rwkw tune

yep, i was hitting 100% on cold morning with only 185rwkw. all dynos read differently tho

[bozodos]

that seems weird given that mine has a 245rwkw tune on stock injectors and FPR, they hit near or maximum duty on 18 psi (I obviously don't run it at that boost setting now)

[R31Nismoid]

Hi there, I am thinking of doing upgrades on my car but I am unsure of what I can and cant do and when it will go from street legal to not. I want maximum power for the street because I race as well. I am running a 13sec at the moment and that is with 201.4 rear wheels, 15 - 12 psi, injectors running at 90%, Apexi boost controller, after market computer Impul? The engine is stock, front mount intercooler, spit fire coil packs, new sparks, K sport adjustable suspension, 3 inch stainless high flow exhaust straight through. I have been looking these following but i need as much advice as i can: - thanks

ECU Vipec -

Injectors - 725cc

1000cc .....I'm thinking to opt for 1000cc to give plenty of allowance to run E85 ??

Turbo - GT30 internal wastegate

GT35R

Outlet manifolds :

Fuel Pump - Walbro

Head: cams, valve springs,grind, metal head gasket

Inlet Manifold - Hypertune

Diff - LSD Centre Nismo

Dyno -

Ok so budget of $10,000… Order of parts goes like this

ECU/Tune: Vipec/PFC (ask your tuner) $1800

Injectors: 740cc $800

Turbo: GT3071 $2000

Exhaust Manifold: Factory

Fuel Pump: Bosch 044/040 $250

Head: Factory Cams, springs, head gasket. $0 or $1500

Plenum/Intake side: Stock is fine (as proven by a number of users making 350rwkw). However if you must change then your call. Factory certainly makes the car appear far more “stock”. $0 or $1200

Diff: Whatever aftermarket $1200

Clutch: You’ll need something. Nismo coppermix is always a winner $2000

That’s around $8,000 best case, worst case $11,000.

If you already have a decent clutch then the above drops $2,000 for both.

You don’t need a GT35, or 1000cc injectors. Simply because you have a factory motor and will not be building it, therefore you do not get a turbo that will do 400rwkw.

Therefore you stick the appropriately sized turbos and injectors.

300rwkw with a 3071 on E85 will be smack on the limits of reasonable for the parts you have, whilst not killing the factory motor.

Would be super responsive and a very nice setup.

Im just wondering what part of walbro is ass mate?

Im making 400rwhp and my walbro is perfect.. please explain why everyone on here jumps on the band wagon and says there crap, im just really curious?

Not a bandwagoner - a first hand believer of how poor they are as with most people posting to be honest.

Mine was outta fuel around 260rwkw. Dropping in a Bosch 040 - suddenly AFR's hit 10:1

For a $200 part, I’m not risking my 10k+ motor.

Gotta wonder how a part becomes so widely known as being poor, with such a reputation for failures/poor supply in higher rail pressure setups… just not worth the risk really for $50.

[Beer Baron]

each to their own hey

im using one its proven and it works so i dont see the point in spending extra $

im not goin to not buy one because a bunch of guys on here jump on the band wagon because 1 failed

bosch tomei nismo can fail 2 you know. not everything is flawless.

lol, i wouldn't say 'it's proven walbro work'. in fact I'd say it's proven that they have a very high failure rate in turbo applications. they are a rubbish pump suitable for the tight arse only. I have seen enough of them fail with my own eyes to know that I would never buy one. you reckon tomei and nismo pumps fail but how many failures have you seen or even heard of? I cannot think of one nismo pump failure and I've personally bought over 20 of them, and know of dozens more that have been running for years. Yes they will fail eventually. All pumps can wear and fail, but most good ones last at least 5 years. I've seen a ridiculously high walbro failure rate. Of the installations I know of I'd say it's about 30% failure within a year. yours might be running fine, but you need to accept that they are a rubbish pump and having one in your car is a risk.

[JonnoHR31]

2k for a clutch to handle 300rwkw? must be a bloody miracle that my $300 clutch survives

Edited January 29, 2010 by JonnoHR31