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injector size for turbo gsr & fuel pump

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Old 08-13-2001, 06:57 AM
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Default injector size for turbo gsr & fuel pump

i was wondering... what's the best injector size turbo GSR with stock internals?? it's equiped with a drag 3 turbo system. the kit comes with a inline fuel pump. should i use that plus a intank or just completely eliminate the inline for the intank pump??

Thanks in advance

PS. I tried doing a search and i didn't find any answeres to my questions.

Old 08-13-2001, 07:01 AM
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Default Re: injector size for turbo gsr & fuel pump (GSRacer)

how much boost do you want to run? Do you have the budget for a standalone computer? Do you have the budget to fix if something blows??
Old 08-13-2001, 07:14 AM
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Default Re: injector size for turbo gsr & fuel pump (redline)

i'm planning on running 9 psi. i'm saving to buy the standalone.
Old 08-13-2001, 07:41 AM
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Default Re: injector size for turbo gsr & fuel pump (GSRacer)

310cc injectors and 8:1 raise rate will get you to that
Old 08-13-2001, 07:59 AM
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Default Re: injector size for turbo gsr & fuel pump (redline)

do you know what else that i'm going to need in order for me to running 9 psi safely?? by the way, thanks for the reply.
Old 08-13-2001, 08:13 AM
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Default Re: injector size for turbo gsr & fuel pump (GSRacer)

J&S ultra v2 is a good thing but you have too look at it this way. How much are you willing to spend on patchs when you are planning on getting rid of them for a standalone. Because most of these patch will not be needed once you go to a standalone.

Can you live with 7psi until you get the standalone? and not spend money on this other stuff.

k
Old 08-13-2001, 08:28 AM
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Default Re: injector size for turbo gsr & fuel pump (redline)

thanks once again. yeah i could live with 7 psi, even 5 if needed. i just want to do things right the first time instead of f@$kin **** up.
Old 08-13-2001, 08:30 AM
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Default Re: injector size for turbo gsr & fuel pump (GSRacer)

THAT IS GOLDEN!!!
Old 08-13-2001, 08:45 AM
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Default Re: injector size for turbo gsr & fuel pump (SiRkid)

I think you could easily get away with 7 psi with 310s and about a 8:1 rise ratio. Run it here for a while until you save up for some engine management and a build. Then run massive boost!
Old 08-13-2001, 08:02 PM
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Default Re: injector size for turbo gsr & fuel pump (Strng1dah)

everyone is all about the 8:1
i think i have a 12:1
i get surges at the top end
will a 8-1 fix this

i am running a drag3 kit w/ str fuel rail,12-1 fpr by vortec(came w/ the kit),missing link and 255lph holley intank pump...
stock injectors....stock...stock...stock

all i want is a smooth 7-8 psi
i havent got it yet, will a paxton fuel regulator help me out too?? a real fuel regulator would be better then a fuel pressure riser
Old 08-13-2001, 09:51 PM
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Default Re: injector size for turbo gsr & fuel pump (4dGSR at work)

what do you mean surges on the top end?? You need 310cc injectors if you want to use the 8:1 . I think that my car runs really good with this set up.

When i first put the injectors in i never turned down the base pressure and the first time i steped on the gas came a huge ball of fire!!

My top fuel pressure is about 80psi @ 7psi of boost

k


[Modified by redline, 10:01 AM 8/14/2001]
Old 08-14-2001, 05:57 AM
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Default Re: injector size for turbo gsr & fuel pump (redline)

What would you recommend the maximum fuel pressure to be for boosting
6,7,8,and 9 pounds of boost?

I have 310ccs, STR fuel rail, 12:1 vortec, B&M command flo and the drag kit's inline fuel pump.

I don't have money to fix **** if it blows and I might have money to get a 8:1 or 10:1 ortifice for my FMU. I just wanted to know if it is worth it or am I taking big risk? I am doing 6 pounds of boost right now.

Will a 8:1 and 310ccs make my GSR reliable as a daily? S/AFC is the only thing that I can tune my car with.

-AzianAvenger
Old 08-14-2001, 08:04 AM
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Default Re: injector size for turbo gsr & fuel pump (AzianAvenger)

12:1 is too much for 310cc my car runs too rich with a 8:1. My egts barely hit 800c when they were 850c with the stocks and less boost.

I think that 8psi is a good daily number for my setup.

k
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