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What injectors ru using on your 402

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Old Mar 28, 2007 | 12:25 PM
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Default What injectors ru using on your 402

What kind of injectors are you using on your 402, I have 36lb fast injectors they are at about 93% duty cycle. I just got it tuned and I was wondering If I could squeez some more power out of my engine with larger injectors?
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Old Mar 28, 2007 | 03:49 PM
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If you go to an aftermarket fuel rail system you can help relieve your duty cycle down into the 80's possibly the high 70's. A friend of mine did that not to long ago in his Procharged 540 BBC w/FAST EFI. He went from having his duty cycle at 110% down to 93%, just from changing his fuel rails out to a larger inner diameter.

Professional Products makes a new fuel rail w/regulator kit for your LS1/LS6 and for the LS2/LS7.
97'-04' LS1/LS6 is part #10611* (This kit includes a fuel pressure regulator)
05'-06' LS2/LS7 is part #10614

*Also use this kit for engine swaps(Will require a return line to the fuel tank)
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Old Mar 28, 2007 | 05:32 PM
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I plan on using stock LS2's if the connectors will work on my Harness.
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Old Mar 28, 2007 | 06:28 PM
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I'm running the lucas 42's with the Speed Inc. rails. My duty cycle is in the 80% range.
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Old Mar 28, 2007 | 06:47 PM
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From what I have seen 42 lbs injectors seems to be the winning ticket. Z06kern very very impressive Z06 with those et and times on your 402. As I seriously considering runnnig a new set-up (LS2 402) in my 02 Z, I sent you a PM on more info and what size cam is that bad boy running?
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Old Mar 28, 2007 | 07:50 PM
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I was running SV042s and am back to SVO36s @ 78%. The 42s were lazy @ idle.
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Old Mar 28, 2007 | 08:34 PM
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good ol 42 here
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Old Mar 29, 2007 | 12:31 AM
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I have 42's in mine....... the FORD brand but they are great....
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Ford Racing injectors F8TEL?
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Old Mar 29, 2007 | 02:48 AM
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Originally Posted by CODE4LS1
Ford Racing injectors F8TEL?

I think they are made by bosch anyways
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Old Mar 29, 2007 | 08:39 AM
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Ford Green Top 42's in mine.
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Old Mar 29, 2007 | 03:11 PM
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Got the connectors for mine, plan on using 34lb LS2's, NA Engine, no spray.
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Old Mar 29, 2007 | 10:43 PM
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Me and a buddy are both using SVO 30's on our 408's. I may move up to the SVO 35's at some point.
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