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FAST102 intake, do I need the injector adapter kit?

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Old Dec 29, 2020 | 04:36 PM
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ReaperHWK's Avatar
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Default FAST102 intake, do I need the injector adapter kit?

I have a 2006 GTO with an LS2.

I just ordered this:
https://www.summitracing.com/parts/fst-146302b

Along with the intake gaskets:
https://www.summitracing.com/parts/fst-146203-8

I have read places with an LS2 and the FAST 102, the LS2 fuel rail and injectors should install without issues.

However, FAST sells this:
https://www.fuelairspark.com/oe-ls2-...sx-intake.html

Do I need that adapter kit? It clearly states required to use OEM LS2 fuel rails and injectors to the FAST intakes. However, many forums I have read say it isn't required. I emailed FAST but it's been days with no response......

Anyone with first hand knowledge?

What is that FAST adapter kit for then?
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Old Dec 29, 2020 | 06:06 PM
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I just did a Fast 102 on my 2006 ls2 out of a GTO and I didn't have to do anything special for the injectors.
The stock fuel rail works just fine. I had a nice AN steam vent line and I had to go back to the stock setup. Also had to slightly clearance the ls2 water pump.
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Old Dec 29, 2020 | 06:20 PM
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You should be good if you're using stock Ls2 injectors.

The spacers are for something with taller injectors like Ev1 Ls1 injectors.

Ev1 Ls1 injectors are about 1/2" taller than Ls2 injectors.

Like my setup I run the MSD Air Force intake, Bosch Ev1 GTP injectors with a Ls2 fuel rail. Needed spacers and O rings for injector to intake side
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Old Dec 30, 2020 | 03:19 PM
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I bought my Fast 102 used and it came with an LS2 fuel rail and stock LS2 injectors installed on it without any sort of spacer or anything. It should be plug and play from that perspective.
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Old Dec 31, 2020 | 01:15 PM
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Awesome guys thanks. Looks like I'm set. The FAST website is confusing to me though, lol.

They should spell out WTF is needed for each application...........
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Old Dec 31, 2020 | 05:16 PM
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This paper came with the fast. Would be beneficial I think to someone. This is not on their website.


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