Need to know what size Injectors for S/C.

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02-10-2006, 11:45 PM

#21

PRO50SC

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RE: Need to know what size Injectors for S/C.

Quote:

ORIGINAL: Black Snake

I got a message from JD'sPerformance that my SC-Trim Supercharger is shiped today.

And I need to generate a shopping list of what I need to make this installation happen.

First I need to know what Injectors I need, I hear 42lbs but I also hear 36lbs or 38lbs are fine. I think I would perfer the 38lbs just because its going to be some sort of a Daily driver (mostly to work 4 miles in town) And maybe once or twice a month to school. 25 miles away. And ima be using 91 Octane and that **** is too expensive to be refilling all the time.

Also Will I be fine with the stock fuel pump? till next pay check (2 weeks out).

What should I gap the Plugs to? Will my Double Platiums Autolites be fine?

I need to start ordering stuff ASAP, so any info would be greatly apriciated.

I would go w/ the 42's. (can ditch the fmu)I went with 30's and found out after the fact it was a mistake. I run autolite 23's gapped @.030. I replace my in tank pump w/ a 255 Holley and run an external that came w/ my kit.

Good luck w/ your set up!!

02-11-2006, 01:49 AM

#22

FullAuto

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RE: Need to know what size Injectors for S/C.

Quote:

ORIGINAL: Black Snake

What do you run? The 3923's? Cause I know you hafta use different plugs with the eddelbrock heads.

That's 2 steps colder than stock. I run 3923s with my combo. They fit my Twisted Wedge heads. I'm not sure if they are the same part number for Edelbrocks. They quite possibly could be. But I'm not sure you will want to go any colder. I don't think you combo is that extreme. No offense, but it's no where near as radical as mine (not that mine is too radical). I'd say try a 3924 first or maybe a 3923, but no colder.

02-11-2006, 03:33 AM

#23

Black Snake

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RE: Need to know what size Injectors for S/C.

Its ok I dont take offense, thats just what I was looking for, I dont want too extreme of a car, I want it to last and I want the power to beat a ls1 on the go.

Ive decided to go with the 42lbs injectors, and 3923 autolites. And the 255 BBK fuel pump.

02-11-2006, 03:51 AM

#24

OnyxCobra

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RE: Need to know what size Injectors for S/C.

I agree with the 42lb injectors, you can always tune down easily and this way if u want to upgrade in the future u wont have to calibrate ur maf

02-11-2006, 07:41 AM

#25

Quik

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Join Date: Nov 2003

Location: Pittsburgh, PA

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RE: Need to know what size Injectors for S/C.

with the 6lb kit 36 are more then enough but for future expansion then 38s will do or 42s thats up to you right now

platinums shouldnt really be used for boosted or juiced applications

.040 is a good gap for only 6psi.
and since 6psi is only like a gain of 78hp youll be fine

run a copper core plug in this situation

in youre case you can run a standard heat range plug. now with alot more boost then i would stepup to a colder plug

03-03-2006, 07:44 PM

#26

Black Snake

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RE: Need to know what size Injectors for S/C.

*Update*

I just purchased 8" Crank Pulley, Power Pipe, and bypass tube kit. My PSI should be around 10lbs.

40* gap still a good gap? On the plugs I mean. With the 3924s.