what size fuel injectors come with the GM S/C? - Boost Forum

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what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 5:30 PM
Well my dad was working out injector size for his car and so i was wondering what size fuel injectors come with the GM supercharger... Also does any one know the stock fuel pressure on our cars? because i got a lot of parts ready to order and add to the hp from the s/c but i need to know a few things first. And my last question is, which fuel pressure regulator should i got with? and or where is the best place to buy it from?




Re: what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 5:34 PM
320cc

Fuel pressure is around 45-50psi.

Accel 74565, bought mine from Autozone for $105, only because I didn't feel like dealing with shipping and internet companies, and I couldn't find it on the net cheaper than that anyway.





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Re: what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 5:42 PM
$105!!! sweet... i was thinking i was going to have to spend like $200+ . Alright well now ill throw thoughs numbers you gave me into the calculations and see whats the max hp i can get from them... Also does that Accel fuel regulator come with a gauge on it?



Re: what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 5:46 PM
We are talking about an FPR right? The FMU's are a lot more expensive....





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Re: what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 6:11 PM
well i just want the fuel pressure regular so i can turn up the fuel pressure as i go up in hp and what not..



Re: what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 8:16 PM
do you mean 105 each injector or 105 for all four??



208whp 239wtq
13.7 @ 102mph 2.19 60'
Re: what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 8:21 PM
NotsoOceansideEco wrote:do you mean 105 each injector or 105 for all four??




There is only 1 FPR....





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Re: what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 8:22 PM
And no, it doesn't come with a gauge on it...





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Re: what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 8:23 PM
One more

Oceanside-

We are talking about FPR's for $105, not injectors...





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Re: what size fuel injectors come with the GM S/C?
Sunday, March 20, 2005 8:40 PM
stock fuel pressure is 43.5 at idle and 50 at wot that is for a stock 2.4 but im positive the idle is the same even with the charger




Re: what size fuel injectors come with the GM S/C?
Monday, March 21, 2005 6:51 AM
i thought th s/c injectors were 310cc HIGH impedance?

Re: what size fuel injectors come with the GM S/C?
Monday, March 21, 2005 7:27 AM
I thought 16 ohm 310cc



1989 Turbo Trans Am #82, 2007 Cobalt SS G85





Re: what size fuel injectors come with the GM S/C?
Monday, March 21, 2005 7:27 AM
they are




Re: what size fuel injectors come with the GM S/C?
Monday, March 21, 2005 7:29 AM
For some reason I always add another 10cc on there... too many injector sizes to remember





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Re: what size fuel injectors come with the GM S/C?
Monday, March 21, 2005 12:44 PM
yup 310cc





Re: what size fuel injectors come with the GM S/C?
Monday, March 21, 2005 2:11 PM
heh thats what i get for skimming lol



208whp 239wtq
13.7 @ 102mph 2.19 60'
Re: what size fuel injectors come with the GM S/C?
Monday, March 21, 2005 2:40 PM
i may have a set of the gm 310 cc high impendence for sale real soon


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Re: what size fuel injectors come with the GM S/C?
Wednesday, March 23, 2005 12:45 AM
hummm because when i put in 310cc injectors in to the calculations it comes out as max hp at the wheels i can get with the right fuel ratio from these injectors is like 204hp at the wheels... and i know people are making over that with the GM S/C kit... do they have bigger injectors for this? I think i have to go back and revise my calculations...



Re: what size fuel injectors come with the GM S/C?
Wednesday, March 23, 2005 4:25 AM
You're pretty close, I hear people are leaning out on the injectors right around 200.





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Re: what size fuel injectors come with the GM S/C?
Wednesday, March 23, 2005 7:19 PM
unless your running a 6psi pulley i doubt you will get 200 to the ground with that kit



1989 Turbo Trans Am #82, 2007 Cobalt SS G85





Re: what size fuel injectors come with the GM S/C?
Thursday, March 24, 2005 4:08 PM
a guy in Edmonton just 3 hours from me, with similar mods as me with the 6psi pulley dynod 202whp and 187lbs of torque...





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