injector size

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Nov 10, 2008 | 03:47 PM

kevtherev

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injector size

I have white injectors with numbers 0280155811 and 24508208.Anyone know what size these are?

Thanks

Nov 10, 2008 | 04:37 PM

67Firebird455

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0280155811 - Ford/Bosch 36lb injector
24508208 is also a "40lb" style injector.

Nov 10, 2008 | 05:04 PM

kevtherev

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These numbers are on the same injector! came with a P1SC Procharger.

Nov 10, 2008 | 05:12 PM

67Firebird455

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They're white with a rectangular connector right? They're "40lb" injectors, actually 36lb, and they're a FMS unit.

Nov 10, 2008 | 05:34 PM

kevtherev

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Yes white with rectangular connector.But what do you mean 40lb but actually 36lb.FMS,is this the make?

Nov 10, 2008 | 05:36 PM

67Firebird455

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They call it a "40lb" injector, depends on the fuel pressure, not sure how THOSE particular units are rated. Ford Motorsports is the brand.

Nov 10, 2008 | 05:46 PM

kevtherev

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My standard (LS1)injectors are same type but grey,numbered 0280155931 and 12561482,so I guess a lower rating?

Thanks for the help.

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Nov 10, 2008 | 05:48 PM

67Firebird455

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The 36's you've got would work great in a heads/cam stroker setup.

Nov 10, 2008 | 06:15 PM

#10

kevtherev

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Sounds like they are the ones to fit with the Procharger.Just purchased this s/h and came with these new 40lb injectors.Just need to get the tune sorted as kit didn't come with flash tuner which is normally the way its done.

Nov 10, 2008 | 06:18 PM

#11

67Firebird455

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Yep, the 40lb units will work as long as you keep the boost down. Did your kit come with the 6psi pulley, or do you know?

Nov 10, 2008 | 06:25 PM

#12

kevtherev

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I believe so but better check that out first.Any ideas of diam?If not will check with Procharger.

Nov 10, 2008 | 06:28 PM

#13

67Firebird455

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Not off the top of my head... They make a 4psi kit, 5-6 and an 8psi kit, all the same head unit.

Nov 10, 2008 | 06:28 PM

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67Firebird455

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FMS (green top) 42's would work great @ 6psi, they're something like 48lb @ 58psi.

Nov 10, 2008 | 06:33 PM

#15

kevtherev

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Thanks for help.Off to bed now it's 12.30am ere in London!

Nov 10, 2008 | 06:36 PM

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67Firebird455

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Aw crap man, it's 4:30 pm here in CA, just about to get off of work! =) G'nite buddy.

Nov 19, 2008 | 12:12 PM

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kenp

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Quote:

Originally Posted by 67Firebird455

FMS (green top) 42's would work great @ 6psi, they're something like 48lb @ 58psi.

The IFR on these is all over the place. FIVEOperformance says they bench test at 45lb @ 43.5psi.

Nov 19, 2008 | 12:42 PM

#18

FICINJECTORS

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Quote:

Originally Posted by kenp

The IFR on these is all over the place. FIVEOperformance says they bench test at 45lb @ 43.5psi.

That is true. The Fords that use those factory have a 38psi rail, and that is what FMS injectors are rated at.

Nov 20, 2008 | 02:44 PM

#19

kenp

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Quote:

Originally Posted by FICINJECTORS

That is true. The Fords that use those factory have a 38psi rail, and that is what FMS injectors are rated at.

Well, I'm sure you know exactly what they flow, but the FM Racing site says they are rated at slightly over 43lbs @ 39.15 psi.

Would your Bosch lll injectors be a better all around injector for the LS engines than the Ford 42lb SVO? I believe the basic difference is that the Bosch lll puts out a finely atomized fuel pattern and the SVO puts out a tight stream. I also believe the SVO is slower than the oem Rochester ball type injectors. How do the Bosch type lll's compare?

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