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Registered
Join Date: Mar 2007
Location: Australia (Whyalla)
Posts: 57
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3.0 to 3.3 Turbo upgrade
Hello.
Bought a 77 3.0 930 rolling shell that had had an engine bay fire so no motor, gearbox rear wiring etc. Bought a 3.3 intercooled turbo motor and short bellhousing gearbox, 3.3 brakes etc. What I am unsure of is what else I will need to be able to get this up and running, I asume the 3.3 needs an ECU to run it for instance but what else may I need. Any idea where I can get a late model wiring diagram from? Any overall advice on doing this, things to consider would be much appreciated. Thanks in advance Alec. |
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12-09-2012, 05:10 PM
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ROW '78 911 Targa
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May get more help in the turbo section.
Sounds like quite the project. Have fun.
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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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12-09-2012, 05:23 PM
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Registered
Join Date: Jul 2003
Location: Glorious Pac NW
Posts: 4,184
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All 930's were CIS, although the later ones "grew" some additional electronics (some more useful than others), culminating in the EZ-69 unit. Factory didn't use an ECU as such (e.g. weren't actually EFI with electronic injectors) until the 3.6 Turbo 2, IIRC.
Post photos of the motor; if you have anything for that massive air filter box to bolt to, you have the metering unit, if the intercooler is fitted to anything on the pancake manifold, you have the throttle body, and if a bunch of metal pipes from next to the metering unit (the fuel distributor) terminate on the intake manifolds, you have injectors. So long as you also have a WUR (which will be connected to the fuel distributor via more metal pipes, as it regulates the control pressure), everything else can pretty much be disregarded - although if it's a very late 3.3, you'd be better off making the fancy electrical stuff work. All 930's and CIS 911's of the era are very similar in terms of fuel/electrical hookups. Early 930's used the same caliper mounts as 911's up through 89 - but the 917 used different mounts, so when the 3.3 picked up the brakes from the 917, the rear caliper mounts changed. So you have the same issues bolting the rear 930 calipers to the rear, early, 930 banana arms as folks do fitting them to a 911; this has been well-covered many times. Either machine off the mounting ears and use adapters, or plug the existing mounting holes and re-drill to suit.
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'77 S with '78 930 power and a few other things. |
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12-09-2012, 05:41 PM
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Registered User
Join Date: May 2011
Location: San Diego
Posts: 383
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Server speed is way down for Forums
It is just me or are other having speed issues with the Forums part of the site right now.
I think Wayne is getting hit with a lot of spam issue from India. |
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12-09-2012, 06:57 PM
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Heinz
