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New intake, need advice on injectors

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Old Jan 29, 2021 | 05:29 PM
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Default New intake, need advice on injectors

Just bought a Mamo 102 with rails for my 408, my question is what kind of injectors do I need?
not size, but style, it’s on cathedral heads

Last edited by Lsx408invt; Jan 29, 2021 at 05:32 PM. Reason: Didn’t finish the message
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Old Jan 29, 2021 | 05:30 PM
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You will likely need 8.
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Old Jan 29, 2021 | 05:57 PM
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Originally Posted by AgFormula02
You will likely need 8.
You been a jackass all your life, or just recently??
Edit: All is good. You are both on the same page now
I do apologize for my above comment

Last edited by G Atsma; Jan 29, 2021 at 09:32 PM.
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Old Jan 29, 2021 | 06:00 PM
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Originally Posted by G Atsma
You been a jackass all your life, or just recently??
yea, I ignored the stupid comment lol
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Old Jan 29, 2021 | 07:01 PM
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Originally Posted by G Atsma
You been a jackass all your life, or just recently??
all my life

Last edited by AgFormula02; Jan 29, 2021 at 07:55 PM.
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Old Jan 29, 2021 | 07:03 PM
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Originally Posted by Lsx408invt
yea, I ignored the stupid comment lol
fair question: did you edit your original post?
or did I read it wrong.
originally, the second sentence clarifying what you were asking for was missing. Hence my sarcasm.
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Old Jan 29, 2021 | 07:16 PM
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Just need some actual info.....anyone?
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Old Jan 29, 2021 | 07:19 PM
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Your question actually makes no sense to me. Going to take a shot in the dark....

I think the FAST intake needs tall injectors (LS1 height). You can call up Fuel Injector Connection and they can set you up with tall body injectors with more modern internals that are faster with more precise fuel control at low duty cycle.

Don't use injector spacers. Those things lift the nozzle out of the airstream and cause fuel to puddle on the injector bore.
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Old Jan 29, 2021 | 07:21 PM
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Originally Posted by Lsx408invt
Just need some actual info.....anyone?
2 key items: connector type and injector height since you are not concerned with size

What are you putting this in? What kind of connector is on your harness? That will be key unless you want to use adaptors.

traditional Ls1 height EV1 connectors will work if you have a f-body harness.
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Old Jan 29, 2021 | 07:22 PM
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You nailed my question perfectly, sorry if it didn’t come through as clear as needed......thank you sir
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Old Jan 29, 2021 | 07:25 PM
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Good deal.

Don't use harness connector adapters either. Those things are total piles of ****. Buy an injector with the correct type of connector, or cut your connectors out and solder on new pigtails.
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Old Jan 29, 2021 | 07:30 PM
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It’s going in my hugger 99 Z so the EV1 will work.......another quick question, I’m looking to go from my injectors now that my tuner says are too small....question is can I go to a 1000cc if I’m gonna turbo the car down the road or should I go 58 or a touch bigger? Will it cause driveability issues?
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Old Jan 29, 2021 | 07:42 PM
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Originally Posted by Lsx408invt
It’s going in my hugger 99 Z so the EV1 will work.......another quick question, I’m looking to go from my injectors now that my tuner says are too small....question is can I go to a 1000cc if I’m gonna turbo the car down the road or should I go 58 or a touch bigger? Will it cause driveability issues?
buy injectors once and be done.
a good tuner can make almost any injector work properly. Have ran 80 pounders that acted just like stock.
buy a good brand name injector from the start, will save you lots of money and headaches in the long run. FIC has always done me good.
Talk to them about power goals with turbo and size accordingly.

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Old Jan 29, 2021 | 07:46 PM
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Excellent!!!
will do, going FIC
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Old Jan 29, 2021 | 07:55 PM
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Buy a set of injectors that can be reflowed to higher values when you turbocharge. Again, Fuel Injector Connection will point you the right way.

I've got my injectors sized to operate around 65% duty cycle so that all the fuel gets in the cylinder for that intake valve event. My injectors can be reflowed to double where I am now if I want.
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