injector sizes on stock ecu

BOOSTDEF · 27-02-2006, 09:27 PM

Hi,

well i still dont have the wolf in as i cant get info out of any of you regarding installation and filter boxes and so on

ing_sm

so, since i would like to drive it around as it is now, i was wondering if the stock ecu would take 24lb injectors with a high fuel pressure???

or will it have a hissy fit like usual??

cheers.

btw, they are out of a combodoore (ducks and hides)

Felony · 28-02-2006, 07:51 AM

Im wondering the same thing if anyone has an answer, i have a set of bosch blue tops im wondering will they work with the stock ecu and a 300kpa xr6 fuel reg? My setup is n/a....
thanks

Aaron_EF8 · 28-02-2006, 04:08 PM

Won't work without a chip, the car will be overfueling constantly.

EFFalcon · 28-02-2006, 04:14 PM

the blue tops (from HSV and magna's) need a higher fuel pressure then the stock fuel reg does to get 24lb.
i think with the normal fuel pressure they get about 21lb.
it'll run richer, but i don't know how well.
john xr6 had 24lb injectors in his car, with stock fuel reg and it seemed to run fine.

BOOSTDEF · 28-02-2006, 07:50 PM

i dont see how it could run rich on boost :P but anyway, i suppose i can give it a shot.

Walkinshaw · 28-02-2006, 08:04 PM

Quote:

Originally Posted by EFFalcon

the blue tops (from HSV and magna's) need a higher fuel pressure then the stock fuel reg does to get 24lb.
i think with the normal fuel pressure they get about 21lb.
it'll run richer, but i don't know how well.
john xr6 had 24lb injectors in his car, with stock fuel reg and it seemed to run fine.

Bingo.

Blue tops @ 275kpa (non XR) are 21lbers. @300kpa they flow 24lb.

If you're running turbo don't upgrade to blue tops unless they are free and you're only running 3-4lb boost. Bluetops + stock reg max out (80% DC) at arround 150-160rwkw.

galapogos01 · 01-03-2006, 09:42 PM

what do you think stock injectors max out at?

im running a chiptorque with my 1521a, headwork, etc. stock injectors & reg. should i get an XR6 reg (or better?) before chiptorque come to melbourne and i get it dyno tuned to make sure they dont run out of fuel while its on the dyno? i currently have no idea if im lean up high, but going by what youre saying, i should be.

help!

Jase

hornet · 01-03-2006, 09:49 PM

And people are saying my car could be maxing the injectors out. My car is mostly stock, just has a running lean problem.

Walkinshaw · 02-03-2006, 12:36 AM

Quote:

Originally Posted by galapogos01

what do you think stock injectors max out at?

im running a chiptorque with my 1521a, headwork, etc. stock injectors & reg. should i get an XR6 reg (or better?) before chiptorque come to melbourne and i get it dyno tuned to make sure they dont run out of fuel while its on the dyno? i currently have no idea if im lean up high, but going by what youre saying, i should be.

help!

Jase

Get an XR reg. stick 19's max out (well hit 80%) at arround 3600rpm :(

hornet · 03-03-2006, 09:53 AM

Will an XR reg on a stock gli ECU make a difference?

Gunns · 03-03-2006, 11:42 AM

Quote:

Originally Posted by BOOSTDEF

Hi,

well i still dont have the wolf in as i cant get info out of any of you regarding installation and filter boxes and so on

ing_sm

so, since i would like to drive it around as it is now, i was wondering if the stock ecu would take 24lb injectors with a high fuel pressure???

or will it have a hissy fit like usual??

cheers.

btw, they are out of a combodoore (ducks and hides)

If you run the 906's (bluetops) with a rising rate fuel reg (you can get one for $160on ebay) and a fuel pump ($160 for a bosch 044 on ebay) you should be good for 170rwkw before you have serious issues with spark