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Which fuel rails?

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Old Nov 10, 2012 | 12:22 AM
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Default Which fuel rails?

I need to order a set of LS1 fuel rails. I see them all over Ebay for under $100. Are those any good or do I need to stick with a name brand like Aeromotive or Fast?

Here are a couple of the ones I'm talking about:

http://www.ebay.com/itm/10610-Powerf...140dae&vxp=mtr


http://www.ebay.com/itm/CXRacing-LS1...8a3f0e&vxp=mtr
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Old Nov 10, 2012 | 07:59 PM
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Anybody?
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Old Nov 11, 2012 | 08:31 AM
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Ebay is a crap shoot...
They list one rail for LS1, 2, 3, 6, 7 & 9... but there are about 6 different variations depending on the injector & intake combo.

The one link you posted, shows the machining of the o-ring grooves & they look horrible. They should be smooth, not full of chatter marks.

Also connection type varies. O-ring being the best & pipe thread less desirable.
Extrusions are more likely to crack, but cheap.
Personally I would not use these rails, even if given to me.

It is all in what you want.

I offer a billet rail, but it is much more expensive than the $99 rails you linked to.
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Old Nov 11, 2012 | 08:40 AM
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Shoot me some info/price on your rails. You can pm it to me if you want. Thanks
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Old Nov 11, 2012 | 09:06 AM
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I have a set of speed inc rails and they are amazing. From personal experience DONT buy cheap rails, you will regret it.
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Old Nov 11, 2012 | 09:29 AM
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Originally Posted by firemech21
I have a set of speed inc rails and they are amazing. From personal experience DONT buy cheap rails, you will regret it.
Which ones? I see they have the budget rails for $99 or the high flow for $179.

Budget:

http://www.speedinc.com/cont.cfm?cid=C0000694

High Flow:

https://www.speedinc.com/cont.cfm?cid=C0000051
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Old Nov 25, 2012 | 08:41 AM
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Ive used the speed inc cheapo rails for years without issue

Use NPT fittings with teflon tape and tighten until you cant hold it with your hand. Do not put it in a vice and torque the snot out it or the ends will split which is why most people talk bad about them

In general LSx fuel rails are pretty universal

Worst case scenario you'll have to swap the upper injectors O-rings for a different bore ($8) or cut/bend up some scrap alum for new mounts. Depends what you want to do
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Old Nov 25, 2012 | 11:23 AM
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What do you guys recommend for a truck intake with ls1 style injectors in it?
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Old Nov 25, 2012 | 07:40 PM
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From: Beaumont Tx
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Originally Posted by Pocket
Ive used the speed inc cheapo rails for years without issue

Use NPT fittings with teflon tape and tighten until you cant hold it with your hand. Do not put it in a vice and torque the snot out it or the ends will split which is why most people talk bad about them

In general LSx fuel rails are pretty universal

Worst case scenario you'll have to swap the upper injectors O-rings for a different bore ($8) or cut/bend up some scrap alum for new mounts. Depends what you want to do
Good info, thanks. I prefer O-ring fittings over NPT, but for the price it's worth a try I guess.
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