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Old December 1st, 2009, 06:02 PM   #1
Plato2k5
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Default carb intake to EFI?

Has anyone taken a Carb intake manifold and drilled it for injectors in the runners?

I want to get ride of the chevy 350 tbi on my mopar 360. I can purchase an Edelbrock intake for EFI on summitracing for $365, than $100 for fuel rail... but I know people have done this themselves.
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Old December 1st, 2009, 06:26 PM   #2
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I assume you are converting from TBI to MPI?

You can buy fuel rail blanks for about $10-15 a foot you then need a special drill bit and don't forget the bosses for the manifold are a couple of bucks each.

Someone with a TIG if you don't have you own to weld the bosses on the manifold.

I assume you are converting from TBI to MPI?
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Old December 1st, 2009, 06:30 PM   #3
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I've heard of people using epoxy to hold them in...however that does not set well with me.

Rite now I have a Edelbrock Performer intake. I bought a carb to TBI adapter plate. So yes, I'd go from TBI to MPI. I can buy a elbow that will allow me to run a ford 5.0, or a LT1/LS1 TB.
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Old December 1st, 2009, 06:57 PM   #4
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I would think it would be better to buy a manufactured intake myself. I had a buddy that did it wit a tunnel ram intake and for the work involved I myself would be more apt to just pay up. If you are equipped To do ityourself and don't have to pay someone elses labor hey give it a shot. But I also have read about injector placement and angles and spray patterns and such and would not try it on my own. Alot of design and engineering involved. Build it your self and it could be great or it could not idle for shit. Wide open throttle it probably would run great but if the injectors are angled wrong fuel could puddle or bounce off the runners. Way more than just welding bungs on. a few hundred for a well thought out part like that is not that bad in my opinion. and trust me I am
poor but would rather spend the money on that kind of part than be frustrated with the end result. My opinion
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Old December 1st, 2009, 10:38 PM   #5
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and that is exactly where I'm at with this.... I'd hate to do it and ruin a good intake where I can at least get $100 for. There is a guy on ebay that has a Torker intake with fuel injectors and a the fuel rails. He says he would take $400 for it.
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Old December 1st, 2009, 10:57 PM   #6
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Do you have a MPI system picked out?
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Old December 2nd, 2009, 04:41 PM   #7
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I run Megasquirt. I have the jeep running on a chevy TBI.
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Old December 2nd, 2009, 05:51 PM   #8
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i personally would just suck it up and buy the correct manifold. save the hassle. i assume you'll be selling some of the tbi parts. i'd like that adapter plate when you decide to get rid of it.
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Old December 2nd, 2009, 06:33 PM   #9
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Quote:
Originally Posted by Plato2k5 View Post
I run Megasquirt. I have the jeep running on a chevy TBI.
Is that a sequential or is it a batch fire?

I have a sequential FAST system for my 440 but its an older version that is not supported anymore so I was debating a MS system.
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Old December 2nd, 2009, 08:05 PM   #10
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You can set it to either. You just need to have a trigger wheel installed so it knows when to fire the injector for that cylinder, otherwise its just batch.
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