LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Please help with injector size

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Old Oct 12, 2008 | 08:20 PM
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Default Please help with injector size

I am looking at the racetronix injectors but cand decide whether to get a 32# or 37# injector set.
The motor is a 355 with ported LT4 heads/ LT4 intake and a cc306 cam and 1.6rr's.
Some people said I should use SVO 30# injectors, I have heard they flow around 34-36#'s but they are about the same price as the racetronix units and I amreally leaning toward the racetronix ones
I am also looking at the racetronix fuel pump and harness upgrade kit. has anyone had any experience with these that could give me some good advice.

Last edited by Raven97; Oct 12, 2008 at 08:28 PM.
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Old Oct 12, 2008 | 08:28 PM
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http://www.rceng.com/technical.aspx

If you know about how much hp you are going to make, that might help...
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Old Oct 12, 2008 | 08:31 PM
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I recommend u run the svo 30# injectors . They will work fine with your current setup. I highly recommend ebay the have some used thats been rebuilt and I just purchased and installed some svo24# and I gonna buy the 30s once I get my computer tuned. I haven't used the racetronix kits before but I heard nothing but good things about them!
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Old Oct 12, 2008 | 08:52 PM
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I am looking at a set of svo 30s for 200 plus shipping on eGay... might just buy them lol.
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Old Oct 12, 2008 | 08:55 PM
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^^^Are they new?

I hope to be around 425 to 450 Flywheel HP give or take so using that calculator I need around 35# for 450hp so if I go with the 37# injectors that would leave me some room for more power down the road.

Right???
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Old Oct 12, 2008 | 09:39 PM
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Not sure there are #42 I think green tops for like 280 plus shipping.
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Old Oct 12, 2008 | 09:39 PM
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yea but having injectors to big is overkill !
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Old Oct 12, 2008 | 09:52 PM
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I want 30's but them I am under the impression I already have them with the motor I got... *shrugs* I hate not being the builder of my current toy but thats what you get when you get a good deal sometimes.
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Old Oct 12, 2008 | 09:59 PM
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It wouldn't be overkill if I was planning on a little spray down the road would it?
If anything would be over kill 42lbs would be overkill
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Old Oct 12, 2008 | 10:06 PM
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I am just saying I saw them *Shrugs* I know LSx's running 42's stock as they were boosted and they are now doing another project. They just tuned to make up for the difference.

Just passing along finds. There were 35's too I forget what else I closed that window long ago.
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Old Oct 13, 2008 | 07:05 AM
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450 fwhp x .07 = 31.5

30# SVO's are good for that, all depends if you are gonna spray or not.
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Old Oct 13, 2008 | 08:07 PM
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But It cant hurt running the 37lbers right, I do plan on sprayin a bit in the future
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Old Oct 13, 2008 | 09:23 PM
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Get the white bosch 36lb design 3 units. They are gxp takeout's I do believe. The bosch design 3 injectors have the best spray pattern out of all injectors. The Ford svo injectors are bosch design 2 units. They are a great injector, but the design 3 is the new and improved version. I just bought a reconditioned set for 110.00 on ebay.
http://www.youtube.com/watch?v=Emnax2J4FX4
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Old Oct 14, 2008 | 02:44 AM
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if you plan to spray get the 36lbers if not 30 will be sufficient
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