G37Stampa

What size injectors do you currently run? and what HP are you planning to achieve for now?

SharpByCoop

Hi Al,

I do not recall the injector sizes for a STG II Gtm kit, nor the pump capacity. That's why I PM'd Sam. Sam or Mike...??

I would like to handle 650whp on race fuel. I think the block/trans could stand that well. I am unsure the fuel system, as supplied, could.

Coop

MSIZZLE

coop im planning an identical build on a 6spd ipl, thanks for the info

Mr.Squeeze

Coop I think you have 600CC injectors with a walbro 255LPH. This is the standard set up for most stage 1 and 2 set up's I have seen.

I would put in a at least some 725 ID's or 850cc DW CJM re turn fuel system Dual walbro's from CJM.This is what I am doing with my built set up.

This a G37 that made good power on a low reading DD.

Forged Performance: 636whp G37 Coupe!!! - Nissan 370Z Forum

Mr.Squeeze

What's going on Sizzle I see you finally got a G and your ready for a build.

G37Stampa

You are more then fine with the block/ trans setup. You definetly need to step up your fuel system. I run 1000cc injectors and a single intank fuel pump with larger fuel lines and fittings that can handle 750 hp.
Just so you get an idea.
Good luck Coop! Lmk if you need anything.
Albert

SharpByCoop

Thanks guys. Yup, you're all on the mark. Here's the note Sam has sent me:

(underline is mine)

Jimmy from The Shop is confirming this with Sam today, and we'll get going. I'd go for the 750's.

I have gone this far on strength, I'd certainly be foolish to rely on fuel supplies for a 550whp-capable setup to run 650whp+.

It's only time and money. LOL!

In the meantime, the car, at the 500whp setting, even with 'low compression' is a hoot. My trans is SO much fun shifting firm and sharp, that I feel like King of the Road.

News soon...

Coop

G37Sam

Definitely agree, you've gone a long way to cut corners with your fuel system!

This thread just keeps getting better n better!

ANMVQ

iTrader: (13)

Nice work Coop, Glad the car is doing well. And also nice to see the 600CC's are good enough for 550WHP, I'm adding some things to my kit and shoot for 460-480 WHP, The Stillen 600CC's I was a little worried about till now,

Injectors smart man going a over, You can always dial down the inlectors but cant always dial them up.

Mr.Squeeze

This is not the case with a supercharger as far as WHP goes. A supercharger uses more fuel because of the parasitic loss of supercharger,takes power to make power. So you will run out of fuel at a lower HP level that a turbo car.

Coprolite

Coop, do you ever track fuel economy while driving this beast? I know that it is an inconsequential cost when compared to the build cost, but I am interested to see the impact.

I am weighing the costs and benefits(hobby fun) of DIY FI vs. simply buying an OEM turbo car.

SharpByCoop

No. Inconsequential to the overall cost and aspiration.

It's not unreasonable, and certainly when you drive it sanely it's 'normal'.

That said, I have spent enough NOW to have equaled purchasing a used GTR for $60k. Although, if I did, I would be in line for $$$+ modifications all the same. We don't leave them alone, no matter how they begin.

No one wants to be 'average', although we all wish to be 'normal'.



Coop

timp

That is so true! ^^^^ Well said Coop.

SharpByCoop

I've got about 700 miles on it now. I've been able to run it through the gears a few times. It feels just as strong as ever.

Parts and card were charged on 7/15 for the fuel components. Still no delivery. I have my fingers crossed for a delivery this week? (Hint, hint....)

Until those components come in it's still incomplete. Receive, install, tune, dyno/road test = Done.

In the meanwhile, it is STILL a boatload of torque and authority.

Coop

ANMVQ

iTrader: (13)

This is OH SO TRUE Coop, An if you went GTR you would be like everone else :/, My mind has changed on the GTR as I see to many of them now. Every show I go to there is like 20-25, 1-2 G's if that, Never a FI'd one I'm usually the only one there which is very NICE, an being the only X FI is even better.. Just like you being unique is much better than just being "oh just another one of those"..