Nm35 Stagea Injector

[Madaz]

and also a fuel cut defencer of some sort as you would easily hit R&R

[Madaz]

please find group buy thread for injectors >>Here<<

[ironpaw]

digging this back up - does anyone know what's the stock injector size on the M35?

[iamhe77]

370cc

[ironpaw]

370cc

Sweet. cheers

Any idea why the Bosch 42lb injectors in the group buy are the same price as the Siemens 60lb?

Edited February 25, 2011 by ironpaw

[andy65b]

Sweet. cheers

Any idea why the Bosch 42lb injectors in the group buy are the same price as the Siemens 60lb?

I looked at the 42lb injectors but you will run out of Injector Duty cycle with very few mods. I am at 100% already and have not even touched the suction pipe yet. If you do the calculator on the GB thread you will see the 60lb ones are a minimum to stay below 80% Duty Cycle.

[Madaz]

Siemens are a cheaper injector so you get better bang for buck

my limited knowledge about Neo engines and your VQ beasties the siemens would need to mod the fuel rail higher to suit a full length injector

[ironpaw]

Would the 42lb be good enough for 220-230awkw?

Or do I need to go to 550?

The issue is apparently LPG jets needs to run near max duty cycle to be effective. They don't flow well @ 60%, which is what 610cc ones will flow at on PULP @ 220ish?

Edited February 28, 2011 by ironpaw

[Sunkist]

Would the 42lb be good enough for 220-230awkw?

you'll be pushing more than that with the setup in line for you buddy. especially on e85.

[andy65b]

Just remember that 230 awkw is more like 300kw at the motor.

So based on that with a max of

100% duty cycle is 47lb

90% duty cycle you would need 52lb injectors.

80% duty cycle it is 60lb injectors.

So I do think the 42lb ones are a good choice.

[Sunkist]

do or dont?

[ironpaw]

I think he mean't don't

Its all good. Spoke with the techs at ALPGW and they said I can go 610cc - they'll just put in 2 banks of gas injectors to match it as each gas injectors can only do 42lb max...

[ironpaw]

you'll be pushing more than that with the setup in line for you buddy. especially on e85.

Hah, I know its capable of hitting 300...but I ain't going near that...yet...

Going to just aim for 220-230 for now...if I have the coin for a GB rebuild in the future then i'll up the boost...

[Sunkist]

I think he mean't don't

Its all good. Spoke with the techs at ALPGW and they said I can go 610cc - they'll just put in 2 banks of gas injectors to match it as each gas injectors can only do 42lb max...

good work!

um make sure you get LFR7AIK spark plugs - or equivilent in heat range. otherwise you'll have issues like mine.. - well for the petrl tune anyway.

[Madaz]

funny im making 235awkw (239rwkw) on a mainline from standard 370cc @ 98%

So i dont see why the 42lb wouldnt easily see 230 on E85

[Sunkist]

you have an RB - we have VQ. different engine entirely.

for safety? - i dont think running your injectors at 100% duty cycle is safe what happens when its colder weather, you get a boost spike, and not enough fuel to compensate - if i were you i would be going slightly bigger just to be safe.

e85 tune will automatically need 30% more duty cycle - you would want something that would compensate this, plus around 20% leway for safety? or would you rather it sit at its limits.

care to share your thoughts?

[andy65b]

lol... Yes, I ment not up to the job.

for reference, my car is around 175 a4wkw with 370cc injectors (stock) i am at 100% duty cycle. I know this is an ECU dictated rich mix for safety but not sure I want to lean off much at 7250rpm.

I think 60lb is a little bit of over kill but 42lb is too small. So I would rather have it slightly oversized.

[scotty nm35]

Personally, I think Dunc has the right idea, ID1000's are probably one of the best options for me, I should have gone that way at the start.

Anyone want to buy my 610's?

[ironpaw]

Personally, I think Dunc has the right idea, ID1000's are probably one of the best options for me, I should have gone that way at the start.

Anyone want to buy my 610's?

meeeeeeeeeeeeeeeeeeeeeeeeeee

Might as well swap cars LOL

[Madaz]

its far from unsafe as my controller doesn't spike i have an APEXi AVCR

my AFR's run about 11.5 WOT @ 98% I've heard of people bumping up the fuel pressure to get 110% out of their injectors

i will be getting 80lb to go E85 on mine