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42lb Injectors too much?

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42lb Injectors too much?

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Old

Oct 28, 2008 | 07:18 PM

#1

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42lb Injectors too much?

Just finished building my 383LS1 with Stage II 5.3 heads and MS4 camshaft. I found green top 42lb injectors a few months ago for a good price so I bought them. Now, i'm thinking that they might be a little much for an all motor car that will be <500hp with the LS6 intake and stock ported TB. Could they pose an issue below 3K rpm by not being able to spray a small enough amount of fuel.

I also have a Walbro 255lph pump and have just over 65lbs of fuel pressure at idle.

Old

Oct 28, 2008 | 09:30 PM

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42# sounds great for your app.

Old

Oct 28, 2008 | 09:32 PM

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42lbs is perfect!

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Oct 28, 2008 | 10:04 PM

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you are fine. those will run fine and you will have no problems

Old

Oct 29, 2008 | 04:46 AM

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OK, thanks. Car is being base-tuned now so I can rack up some miles on it before WOT tuning.

Old

Oct 29, 2008 | 03:22 PM

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Yeah your fine. I have them on a 346 with H/C and 90 intake and it runs great, idles good and sub 3000 is fine.

Old

Oct 31, 2008 | 07:16 PM

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Dave break that thing in for we can see what that beast can do at wot!

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Old

Nov 1, 2008 | 01:46 PM

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I would stick with those for sure!!!

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Old

Nov 1, 2008 | 05:28 PM

#9

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Working on it Tim. Slowly working on it. The block is too thirsty for oil right now.

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42lb, bosch, green, injectors, ls1tech, much, top, venom, viper

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