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Alternative Port EFI Intakes This board is for tech discussions and questions about aftermarket port EFI such as the HSR, MR, SR, BBK, FIRST, etc.

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Old 12-24-2008, 03:47 PM   #51
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Re: So! what is the deal with the GM Ramjet?

i believe the Ls2 injectors fit properly
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Old 12-26-2008, 07:36 AM   #52
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Re: So! what is the deal with the GM Ramjet?

But don't they use a different connector???

plus, I already have 8 new injectors to go on with this intake.... once I get this sorted out

-jason
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Old 12-26-2008, 09:28 AM   #53
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Re: So! what is the deal with the GM Ramjet?

I was told by the guy at Mercruiser that I bought my intake from that Edelbrock cast the ramjet for GM. In that case, the rails might just be close enough.
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Old 12-26-2008, 11:14 AM   #54
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Re: So! what is the deal with the GM Ramjet?

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But don't they use a different connector???

plus, I already have 8 new injectors to go on with this intake.... once I get this sorted out

-jason
they do require the smaller connector.
the next thing to do would be to raise the fuel rail with a spacer to fit the injectors you already have.
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Old 12-26-2008, 06:18 PM   #55
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Re: So! what is the deal with the GM Ramjet?

the rails are already too high for the mounting points

I think I'll try elongating the holes. Should be fun to do by hand with a drill! LOL

-jason
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Old 12-27-2008, 10:21 AM   #56
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Re: So! what is the deal with the GM Ramjet?

if you are going to try and elongate the holes, just use a drill jig. Take a peice of steel or aluminum (steel is better) but if it's around 1/2 inch thick to 1" thiick it will work with either. drill a hole in the material the size you want, and then clamp that peice to the rail, offsetting the holes as needed. the guide will mostly keep the drill in the right place, and will help out to elongate the hole. it may not work our perfect, but at least you'll have a fighting chance.
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Old 02-24-2009, 11:16 PM   #57
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Re: So! what is the deal with the GM Ramjet?

LS1 injectors squeeze in there with the edelbrock rail, and the connectors are right.
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Old 04-14-2009, 12:11 PM   #58
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Re: So! what is the deal with the GM Ramjet?

what throttle body are you guys using that are piecing it together? just the LS1 throttle body?
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Old 04-15-2009, 07:27 PM   #59
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Re: So! what is the deal with the GM Ramjet?

I bought an LS1 throttle body off of ebay. It was a new take off and cost me about $100. The ramjet intake manifold cost me $160 on ebay, so its cheaper than the SDPC vortec manifold.
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Old 04-18-2009, 07:46 PM   #60
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Re: So! what is the deal with the GM Ramjet?

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I bought an LS1 throttle body off of ebay. It was a new take off and cost me about $100. The ramjet intake manifold cost me $160 on ebay, so its cheaper than the SDPC vortec manifold.
You got a real deal.
I found the intake, fuel rails, and LS1 TB for 700.00 and felt like that was a deal.
A set of Ford injectors and OBD2 changeover tops it off.
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Old 04-24-2010, 10:56 PM   #61
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Re: So! what is the deal with the GM Ramjet?

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You won't need to fab custom rails. Get the Edelbrock rails for Vortec heads (Part #3631), they'll run you about $80. I started with a bare RamJet and these rails work great.
I put my other brand new RamJet up for auction with an ECM, harness and cam. No messing around with fabbing your own crossover, and coming up with a fuel pressure regulator. Ends tomorrow if you're interested. FYI.
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Old 04-24-2010, 10:56 PM
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