Modifying Gtr

[scotty nm35]

Walbro 460L.

The Bosch pumps are old designs, and noisy as buggery. Still great for external setups, but internal it's hard to go past the new Walbro e85 pump for $200.

[0zhiph0p]

my Nur had Nismo injectors before i changed, they were fine for 350'ish rwkw, running 2530's.

Proven, solid injector. I'm in Melb as well. I'm sure i can help you out with a good price just to get you passed these injector issues

I tryed to pm you but it won't work just keeps giving me an error message. Don't know what's up. Are the nismo injectors going to fit in my 32. And are they the same cc because I can't tune yet haven't got power fc.

[0zhiph0p]

Hey guys I purchased a power fc and controller and second hand denso 550cc injectors

I was just wondering if I can put the injectors in now without the power fc because all the workshops are closing up for chrissy. Will it still run ok or should I wait till power fc gets installed and tuned? Thanks guys

[MrStabby]

Hey guys I purchased a power fc and controller and second hand denso 550cc injectors

I was just wondering if I can put the injectors in now without the power fc because all the workshops are closing up for chrissy. Will it still run ok or should I wait till power fc gets installed and tuned? Thanks guys

You can setup the injectors in the PowerFC, but you'll need to know the latency of the denso 550s or the idle & low throttle fuelling will be off. Also, you'd be taking a bit of a gamble on the motor if you drive it hard before getting the tune checked after the injector swap.

[scotty nm35]

I would be getting any S/H injectors flow tested before fitting them, injectors sometimes don't like being removed from a fuel system and left on a shelf for a few months. Were they stored in a sealed bag or similar at least?

One slightly blocked injector can really ruin your day... I hope you got them cheap as new injector prices are dropping fast.

[0zhiph0p]

Yer the guy took em out of his car cloth baged em bubble warped and boxed and express posted them hense why I was thinking of putting them in the car straight away. I can't get the car booked in till the 6th of jan so I wasn't sure if the injectors will be ok sitting till then or is there a good way to store them ?

[scotty nm35]

Not really, just keep them in a sealed sandwich bag or similar. I would replace the 'O'rings too if they have any sign of damage, and lube them up well before installing them, you don't want petrol leaking over a hot engine.

I use a little silicone spray to lube the Orings..

[0zhiph0p]

Well that's why I was hoping to get the injectors in cos at the moment my injectors are pissing fuel out all down the side of the motor I'll do the sandwich bags tho thanks Scotty

[0zhiph0p]

ok so injectors in power fc in tuned and dyno'd came back with 245kw on 14psi

feels much nicer to drive has realy changed how the boost comes on its a bit more punchy,

im thinking i might need some more mods soon tho to gain a bit more power 300kw would be nice i think

[scotty nm35]

ok so injectors in power fc in tuned and dyno'd came back with 245kw on 14psi

feels much nicer to drive has realy changed how the boost comes on its a bit more punchy,

im thinking i might need some more mods soon tho to gain a bit more power 300kw would be nice i think

All you need is 22psi crammed down it's throat, as long as the fuel system can keep up. Seems to be making good power for the low boost you are running atm.

[0zhiph0p]

Having some problems at the moment guys hoping some one can help, I was driving home this arvo and stopped got fuel, drove like 10ks car started spluttering losing power for a second then come good, keep driving same thing splutter a bit then come good. Then I'm doing 80 up hill and it just keeps dropping power and I pull over off the road and it just stalls started up again stall, start up again keep driving not too bud a couple of little splutters then get to the end of the street turn the corner and stall in the middle of the road got it home but worried what it may be dirty fuel pick up from when I fueled up, coils, afm

Any help would be muchos appreciated

[Hadouken]

Well lets go through process of elimination.

Car drives good -> Stop -> Fill up -> drive off -> car is shit

In conclusion, all evidence points to the variable that you exposed yourself to, the fuel. Therefor empty tank with syphon, go to good petrol station, put in fuel and see if that was the problem.

[0zhiph0p]

Well I filled with bp ultimate as I usually do, the fuel light wasn't on its not like the tank was bone dry picking up all the shit at the bottom. And I'd have thought it would caugh and fart within a few minuets of driving if it was bad fuel or shit from bottom of the tank. It used to have a little bit of a loss of power moment before I got the injectors and the ecu done but my mechanic said that looked to be a faulty relay for the fuel pump and they replaced it.

[Hadouken]

if your car was driving 100% before you filled up.

I dont see how something coincidentally broke at that exact moment unless you mistook your engine bay as the fuel tank.

Also, when you fill up, it sloshes around and mixes together. Its not a layering system

[0zhiph0p]

Well that's the thing the car hasn't been 100% maybe it's just coincidence that it has happened

[scotty nm35]

Sounds like the plugs might be fouled. Could be anything realistically, start with the basics, fuel, spark, timing.

[0zhiph0p]

I just had all of the plugs changed she I got the injectors done and the ecu

[ido09s]

running a tank dead dry will not allow the pump to pick up dirt lol where do you think the sock sits that picks up the fuel? I can tell you now it aint at the top of the tank or you would never drive long enough to see the gauge drop

Take the car back to the dyno if it can be driven and get it on there to see what its doing. Sitting behind the laptop is not going to sort it out any time soon. You have said ages ago that the car used to splutter and stall and clearly the mods now done to the car have not changed anything so there is something else that needs attention

Who tuned it?

With regard to turbo upgrades, take a look into the new Precision Turbo GTR replacements. From what i have seen they should be good for some pretty decent power. Just run them at low boost

Edited January 23, 2014 by ido09s

[0zhiph0p]

Must have been shit in the tank that got stirred up with the fuel didn't have a problem with it today too and from work. Hope that's all it was

Thanks guys

Edited January 24, 2014 by 0zhiph0p

[Missileman]

so take your pump out and shine a light down there and if there is shit at the bottom suck it out with a syphon

if you have a an issue, ffs make sure what it is!