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Old 09-06-2010, 06:05 PM
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Default fuel injector question

was lookin at upgrading my fuel injectors possibly, could i use some out of like GTO 6.0L's? if so is it worth getting them and doing the upgrade or no?
Old 09-06-2010, 06:44 PM
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The LS2 injectors flow 33.9 lbs/hr (4.27 grams/second) at 58 psi (400 kPa) fuel pressure.
LS1 injectors : 26-28# @ 58psi depending on year. I believe you'd need an LS2 fuel rail (or spacers) to make those injectors work.
Old 09-06-2010, 06:51 PM
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so upgraded fuel injectors is a touchy subject from what i hear... sry to piggy back on this but i also will need to know in due time
Old 09-06-2010, 07:40 PM
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hmm ight, ill look around more, might just get aftermarket ones
Old 09-07-2010, 03:12 AM
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what mods do you have to justify an upgrade? what engine also?
Old 09-07-2010, 11:23 AM
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Just get some Redtops out of the classifieds. Direct fit. They flow about 42lbs at our fuel pressure. $100-$125 all day...
Old 09-07-2010, 04:26 PM
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ls1, with diff lid intake set up and full LT catback exhaust, but gettin heads and cam in about a month or less depending on money so, what are these redtops u were talking about, any more info on them?
Old 09-07-2010, 04:52 PM
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They are ford SVO injectors made by bosch IIRC. They have EV1 connecters so they drop right in.... They work great on these cars.... Search the classifieds they are in there all the time.... They are called Redtops for obvious reasons....
Old 09-07-2010, 05:06 PM
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Redtops or greentops will work just fine, i know a lot of cam only guys run the greentops with no problems
Old 09-07-2010, 07:15 PM
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ight cool thanks, deff look those up and try to get a set, think it will be worth it to get before i get my heads and cam before the tune? or is this something i could do after that and when i get my TB ported and LS6 or FAST intake and re tune?
Old 09-07-2010, 08:29 PM
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Originally Posted by ToxicWS6
ight cool thanks, deff look those up and try to get a set, think it will be worth it to get before i get my heads and cam before the tune? or is this something i could do after that and when i get my TB ported and LS6 or FAST intake and re tune?
If you're doing heads AND cam you'll want to pick up some injectors. Cam/bolt on's/intake and the duty cycle is usually in tolerance. Adding heads would put you over the "tolerance"

The best bang for the $ is the SVO redtops, which are 30# ford injectors, but around 36# @ the fuel rail on LS1 cars. They plug right into your pigtails, nothing else is required (other than a tune) and can be had for 100-150$.
Old 09-07-2010, 08:33 PM
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awesome, probably gunna grab a set then, thanks guys
Old 09-07-2010, 08:37 PM
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Originally Posted by chavez885
If you're doing heads AND cam you'll want to pick up some injectors. Cam/bolt on's/intake and the duty cycle is usually in tolerance. Adding heads would put you over the "tolerance"

The best bang for the $ is the SVO redtops, which are 30# ford injectors, but around 36# @ the fuel rail on LS1 cars. They plug right into your pigtails, nothing else is required (other than a tune) and can be had for 100-150$.

That is right my bad... and the Greentops are 42#'s at bar 3 fuel pressure so about 48#'s at our bar 4 fuel pressure.... I run 42# (@ 3 bar) Bosch design III's on my car.....




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