Just an idea to start my turbo setup.

[Red]

I dont know if this would work. But its an idea

I was thinking of upgrading my fuel system 1st an in

Walbro/300TT fuel pump.
New fuel rail with 720cc injectors
Cobra MAF
and a JWT ecu to make it all work.

You think this would run right on a stock 95 240sx?

And would I be able to boost it later without a reprogram?

Maby I should e-mail JWT and ask ehh?

[Jeff240sx]

Originally posted by Red
I dont know if this would work. But its an idea

I was thinking of upgrading my fuel system 1st an in

Walbro/300TT fuel pump.
New fuel rail with 720cc injectors
Cobra MAF
and a JWT ecu to make it all work.

You think this would run right on a stock 95 240sx?

And would I be able to boost it later without a reprogram?

Maby I should e-mail JWT and ask ehh?

720cc injectors aren't made... 740cc are, but anyway.
The JWT program uses 72# injectors.
Also, the idle will suffer severly with those injectors. Do a search before I decide to stop bieng nice.
72# injectors will handle 350-500rwhp on our cars, and you're probably never going to make that. I'll be running 50# injectors, and most other people run 50's too. 350-360rwhp from the 50# injectors... so 72# are like the final step in turbo fuel.
Search for the ammount of boost you want to run. You'll get hits on 4, 7, 10, 12, and 15 psi for the KA.
-Jeff

[Red]

Yeah I know the 720-740cc (whatever) will run that much HP.

Thats the Idea. Do it once do it right.

And this is not for a turbo setup yet. I was wondering how my car would run... ohh without a turbo.

I'm not done planning my turbo out yet. But if I get the fuel system all upgraded. then when I get to it I can slap the rest in and be on my way to happy boosting... (Cmon GS increase)

[Jeff240sx]

Originally posted by Red
Yeah I know the 720-740cc (whatever) will run that much HP.

Thats the Idea. Do it once do it right.

And this is not for a turbo setup yet. I was wondering how my car would run... ohh without a turbo.

I'm not done planning my turbo out yet. But if I get the fuel system all upgraded. then when I get to it I can slap the rest in and be on my way to happy boosting... (Cmon GS increase)

Well then I'm going to highly recommend against it.
The idle will be terrible since huge injectors can't flow the little bit of fuel that you need at idle. Also, the ecu program will flood your car with fuel at higher RPM.. cuz it's based off a fuel map, not a fuel demand. You'll get 14mpg, foul plugs in a couple weeks, and have nasty emissions.
At least wait until you get a turbo to put it on.. and even then.. you probably won't need it.
-Jeff

[s13silady]

talk to Asad from www.Freshalloy.com hes been running a turbo fuel setup without the turbo for a while...

[Jeff240sx]

Originally posted by s13silady
talk to Asad from www.Freshalloy.com hes been running a turbo fuel setup without the turbo for a while...

He's also running a 50# setup... so they're actually small enough to idle correctly and let the tiny bit of gas needed to idle.
When you go with the 72# injectors, you have to bump up the fuel pressure to 4bar and run a Nismo regulator. Couple that with an injector that's pulse width is too large to idle right, and it's a recipe for a bad time, because it's just too much fuel man.
-Jeff

[Red]

So I guess my idea it not totaly invalid. I just need to rethink my 1st step and go a bit smaller.

Thanks for info.

[s13silady]

oh hehe.. didnt really know what size asad was running... 50 to 72 is a big big difference...

[AceInHole]

Originally posted by Jeff240sx
When you go with the 72# injectors, you have to bump up the fuel pressure to 4bar and run a Nismo regulator.

Hmm... I thought all injectors were rated at a standard of 3 bar fuel pressure??

[boosteds14]

Originally posted by Jeff240sx
He's also running a 50# setup... so they're actually small enough to idle correctly and let the tiny bit of gas needed to idle.
When you go with the 72# injectors, you have to bump up the fuel pressure to 4bar and run a Nismo regulator. Couple that with an injector that's pulse width is too large to idle right, and it's a recipe for a bad time, because it's just too much fuel man.
-Jeff

i think you need to reword the 72lbs injector thingy