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What size fuel injectors?

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Old 06-16-2008, 05:27 PM
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AcidCobra
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Default RE: What size fuel injectors?

still would like to know if any of our vendors have the injectors..


*edit* was miss type it is 30 not 40 *doh*
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Old 06-16-2008, 05:35 PM
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pcs
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Default RE: What size fuel injectors?

injectors, check out rpmoutlet
as for my whp # ill get a pic posted of my dyno graph as soon as i can resize the photo
ported heads
cams
dss short block
p1sc (3.1' upper pulley)
lt tube,no cat x-pipe,slp lm2, alum flywheel, cl plenum,75mm tb,ect,ect




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Old 06-16-2008, 05:52 PM
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Default RE: What size fuel injectors?

What cc dish are you running and what heads? Or you can just tell me your compression ratio since thats what I'm trying to figure out
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Old 06-16-2008, 06:02 PM
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AcidCobra
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Default RE: What size fuel injectors?

hmm on rpmoutlet it is saying there 39lb is good to 630hp max... umm that number seems way high to me and also talks about wiring harness adapter...which i have no idea about
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Old 06-16-2008, 06:43 PM
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Default RE: What size fuel injectors?

They say that because they can if you increase the fuel pressure to 80psi. But you cant do it with a computer run returnless system.

You have EV1 style injectors in order to run EV6 (03 cobra) you need the adapters.
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Old 06-16-2008, 07:07 PM
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AcidCobra
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Default RE: What size fuel injectors?

Ok, the 41lb and 62lb are ev1 which means i would just plug in so to speak.. but the 52lb are ev6 which means i would need the adapters.. ZW99GTsuggested that i put 60s inbut i think that would be over the top unless i am running 20psi which is max for the blower i have right now. I am thinkinking the 2.8 pulley would be around 15-16 psi which is doubling my boost, I have forged internals but i think 12 would be the highest i would go which is 3.00 or 2.85 i'm not really sure, what would be the best bet for a 12-13 psi setup?
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Old 06-16-2008, 08:14 PM
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ZW99GT
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Default RE: What size fuel injectors?

ORIGINAL: AcidCobra

Ok, the 41lb and 62lb are ev1 which means i would just plug in so to speak.. but the 52lb are ev6 which means i would need the adapters.. ZW99GTsuggested that i put 60s inbut i think that would be over the top unless i am running 20psi which is max for the blower i have right now. I am thinkinking the 2.8 pulley would be around 15-16 psi which is doubling my boost, I have forged internals but i think 12 would be the highest i would go which is 3.00 or 2.85 i'm not really sure, what would be the best bet for a 12-13 psi setup?
You never specified how much boost and HP you wanted. Depending on how crazy you want to go, do it once, and you won't have to worry about it down the road. 50's do sound like a better option.

I don't know a whole lot about injectors. I get all my fuel from a solenoid.



crower stage III s/c cams. they lope like crazy. and yes im intercool ,most prochargers are. on a dynojet in phx, az (amp performance) in the middle of the summer. temp. was about 92F, so its real street number. i hate when people dyno their cars in an a/c warehouse where its about 70F and get big dyno numbers to make big claims. you always want to replicate the conditions the car is most likely to see on the road to get a more accurate tune.
Big lope sound=big LSA=not a good boost cam?
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Old 06-17-2008, 12:11 AM
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Default RE: What size fuel injectors?

the dyno thinks its a good cam. also, you can call or just check out their website,crower/crane/ comp cams on what cams they recommend for those hp #'s and all they will tell you that youll have a rough idle with any cam that makes power past 6300rpm with a blower.
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Old 06-17-2008, 12:23 AM
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ZW99GT
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Default RE: What size fuel injectors?

ORIGINAL: pcs

the dyno thinks its a good cam. also, you can call or just check out their website,crower/crane/ comp cams on what cams they recommend for those hp #'s and all they will tell you that youll have a rough idle with any cam that makes power past 6300rpm with a blower.
I didnt mean they were bad cams. What do I know? I've just always been told Big LSA for N20 and small LSA for boost. So boost cams don't usually "hit" like an N/A or N20 cam.

Anyways, what heads are you using? What springs did you use? If my information is correct, thats a .612 lift cam, which is absolutely massive for these engines.
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Old 06-17-2008, 07:16 AM
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Default RE: What size fuel injectors?

Lope at idle does not mean large LSA. That is only in a NA cam. A blower cam gets it lope for the duration. A stage 3 blower cam should only have around 530 lift. Blower cams dont need lift just duration.

OP what blower are you running.
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