Fast 102 what Injectors/rails?
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From: Harford co. MD
Fast 102 what Injectors/rails? Plan on getting a Fast 102 manifold for the LS1 but no exactly sure if the stock size injectors will work or if I need a different size? And I see the rails are also different what is needed LS3? Basically what would be needed to do the swap I see there is a kit with adapters/rail but can this be done without adapters and use a factory rail? Hate to dump $250 extra for a kit on top the manifold cost if I don't have to!
We have inexpensive take-off LS2/3 rails. You will have to have one.
https://ls1tech.com/forums/parts-cla...-etc-sale.html
If you need slightly larger injectors to support your power from heads/cam etc with the project (I don't know your setup), we have takeoff LS2s in there as well. With those you would just need wiring adaptors for $60. Your stock injectors are longer than needed, but will work with an o-ring swap
https://ls1tech.com/forums/parts-cla...-etc-sale.html
If you need slightly larger injectors to support your power from heads/cam etc with the project (I don't know your setup), we have takeoff LS2s in there as well. With those you would just need wiring adaptors for $60. Your stock injectors are longer than needed, but will work with an o-ring swap
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From: Harford co. MD
I will probably be using 42lb injectors shooting for 500rwhp N/a so the LS2's maybe a bit to small but will the rails work if so what injector works without spacers?
You need midlength, LS2 length.
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Plan on getting a Fast 102 manifold for the LS1 but no exactly sure if the stock size injectors will work or if I need a different size? And I see the rails are also different what is needed LS3? Basically what would be needed to do the swap I see there is a kit with adapters/rail but can this be done without adapters and use a factory rail? Hate to dump $250 extra for a kit on top the manifold cost if I don't have to!
Use your LS1 injectors and buy the spacer kit from CBM for $15
Sell your LS1 rail and you will not be out any extra cash.
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Well i dont have any other than stock injectors right now and i need to upgrade them for the new engine i'm putting together so would it not be a better option to but the mid length LS2's and use the matching rails so no spacers are needed? I would just need adapter plugs correct? Which ones EV1 to EV6?
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Well i dont have any other than stock injectors right now and i need to upgrade them for the new engine i'm putting together so would it not be a better option to but the mid length LS2's and use the matching rails so no spacers are needed? I would just need adapter plugs correct? Which ones EV1 to EV6?
Getting upgraded LS1 injectors with the spacer kit would be significantly cheaper than LS2 injectors with the adapters.
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Do you still have to use LS1/LS6 injectors if you use the LS1/LS6 rails
http://texas-speed.com/p-2363-fast-l...whardware.aspx
http://texas-speed.com/p-2363-fast-l...whardware.aspx
Do you still have to use LS1/LS6 injectors if you use the LS1/LS6 rails
http://texas-speed.com/p-2363-fast-l...whardware.aspx
http://texas-speed.com/p-2363-fast-l...whardware.aspx
Well I will be using GTP injectors with my H/C swap so if I ever went with a FAST down the road, I'd just get the FAST rails so I could use my same injectors.
So not to hijack the thread. But here is my question. Im doing a 406 build. I Have the fast 102 ls1 style intake and tb. I have 42lb svo's from my prior build. What all would I need to purchase to complete the intake/fuel system?
May want to rethink the SVO injectors if they are the fat ones. They will rub the intake some clearancing will be needed
