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Registered User
Join Date: Feb 2014
Posts: 1
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3.0 Carb to Fuel Injection Conversion
Hello all, long time lurker, first time poster!
I have searched a lot about this topic but still don't have the information I need. I have a 3.0L engine, JE pistons, Web Cams, Weber Carbs and I would like to convert it to a fuel injection using a 964 setup (intake, throttle, fuel injectors, harness, etc). Has anyone done a conversion like this before? If so, what did it entail? Any reason it cannot be done? Lots of info converting 3.0Ls to carbs, but not the other way around. Thanks in advance! 3.0Dude |
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02-05-2014, 02:12 PM
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I would rather be driving
Join Date: Apr 2000
Location: Austin, TX
Posts: 9,108
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What cam grind do you have?
The 964 manifold, fuel rails, throttle body will work just fine. The Motronic ECU will not work with this combination. There are many stand-alone engine management systems that can be user programmed to work. Search here for Megasquirt, Haltech, SDS, Motec, and others. Yes, this type of conversion has been done before.
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Jamie - I can explain it to you. But I can not understand it for you. 71 911T SWT - Sun and Fun Mobile 72 911T project car. "Minne" - A tangy version of tangerine #projectminne classicautowerks.com - EFI conversion parts and suspension setups. IG Classicautowerks |
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02-05-2014, 03:09 PM
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Registered
Join Date: Feb 2009
Location: Knoxville, TN
Posts: 1,347
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If I'm not mistaken, you cannot use the 964 intake due to it attaching to the heads via 3 studs per head. You will have to use the 84-89 carrera intake
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02-05-2014, 04:54 PM
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Registered
Join Date: Mar 2006
Posts: 821
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This is how we do the 964 intake on a 3.0 engine @ Rothsport.
Last edited by rsscotty; 02-05-2014 at 05:45 PM.. |
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02-05-2014, 05:42 PM
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I would rather be driving
Join Date: Apr 2000
Location: Austin, TX
Posts: 9,108
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Quote:
 The 3.2 intake is probably easier.
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Jamie - I can explain it to you. But I can not understand it for you. 71 911T SWT - Sun and Fun Mobile 72 911T project car. "Minne" - A tangy version of tangerine #projectminne classicautowerks.com - EFI conversion parts and suspension setups. IG Classicautowerks |
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02-05-2014, 06:40 PM
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ROW '78 911 Targa
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Quote:
You guys are too close to my home and the last time I was there we spent an hour with me drooling over that setup and asking a zillion questions! Fortunately, you were in the middle of moving your shop and were distracted so I was able to slip out before committing to buying anything ...  To the OP, search the web for bitz kit or bitzracing as an alternative as well. Works for me. (for now)!
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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02-05-2014, 07:23 PM
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Registered
Join Date: Dec 2006
Posts: 464
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Sent you a PM...
Marc |
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02-06-2014, 06:47 PM
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Senior Advisor
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i would go with the PMO ITB set up, that would be at least the same looking as the webers and many parts would fit the same, all depends on your pockets. the 964 ITB set up os cool but the PMO's have that old skool look. and perform the same. Any way you go will be a steep learning curve.
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08 Cayenne Turbo |
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02-06-2014, 09:02 PM
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Registered
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Quote:
not sure what happened to the OP but that is what I have been wanting to do for a long time to my Weber carbed 3.0L. Just done with the Webers and looking for something more modern. Can you tell me what I am looking at there. Man thats beautiful!
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Dan '86 911 Targa Driver '76 911 Targa 3.0 Track Toy 46mm PMOs, 10.5/1 J&E,Web Cams, Wide Body fenders, 23mm and 30mm Hollow T-Bars, 930 Sway bars, Bilstein Sport Shocks, Plastic Bushings (too damn squeeky) |
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02-07-2014, 12:08 AM
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ROW '78 911 Targa
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Quote:
Welcome to Rothsport Racing - Products Wear a bib to absorb your drool!
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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02-07-2014, 09:22 AM
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Registered
Join Date: Mar 2006
Posts: 821
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Quote:
I sent you an email regarding this project. |
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02-07-2014, 11:04 AM
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Heinz
Ole' Blue
