Pablo Morris Posted 14November, 2011 Report Share Posted 14November, 2011 I've located an 1982 'SC, Body is straight, mechanical is not so bad, however the whole electrical system looks like it has been attacked by Edward Scissor hands! Loom cu t into, additional wires with no visible termination. To my mind a fire waiting to happen. The car has been a Garage queen for the last 8 years & is perfect for my project of doing my own "Outlaw" (following but not replicating the RSR look). Given the car will be getting the full strip down Engine / Gear box, I know the car will need re-wiring completely. The Motronic system is now heading towards 35yrs + in age and OEM parts are getting scarce, can this entire Engine management system be upgraded? Is there anyone out there who has done this in Australia? Any recommendations as to systems / Independent Porsche specialists (I am in QLD) who are good with this kind of mod? This is a serious request for help & would really appreciate any knowledge from the wider forum Thanks Pablo Link to comment Share on other sites More sharing options...
jnr356 Posted 14November, 2011 Report Share Posted 14November, 2011 an sc doesn't have motronic / dme Link to comment Share on other sites More sharing options...
Pablo Morris Posted 14November, 2011 Author Report Share Posted 14November, 2011 an sc doesn't have motronic / dme Sorry - should have mentioned it has a 3.2 fitted (badly) Link to comment Share on other sites More sharing options...
JustJames Posted 16November, 2011 Report Share Posted 16November, 2011 Hi Pablo Yes, it is possible to replace the DME with an aftermarket ECU. The best known is probably MoTec, but there are others. The thing is, aftermarket ECU's do not have as full a range of sensors as any car's original ECU. Most people who go aftermarket do so either because they are running a setup that Porsche did not design or are seeking something which can not be delivered by the factory ECU. Usually that translates to more power, but the tradeoff is usually in worse fuel economy. My advice (and it is worth exactly what you have paid for it) would be to run the DME for as long as it works, which may well be the length of your ownership of the car. There is a pretty good market out there for repair of those items which can't be replaced. As f'rinstance, I've had a number of Bosch CD boxes for SC's - which cannot be replaced - repaired. If your goal is enhanced performance, there are companies who make aftermarket tuning chips which slot into the DME brain. If you decide to go for an aftermarket ECU, it is likely to be an expensive undertaking, and your budget should include dyno time to get the car set up to your requirements. If you go this route, your best bet is to seek out a tuner who has a good reputation for working on 911's and find out which ECU they are happiest working with. Good luck with whatever you decide to do. James Link to comment Share on other sites More sharing options...
Chris-p Posted 17November, 2011 Report Share Posted 17November, 2011 Great explanation and information James. Cheers Chris Link to comment Share on other sites More sharing options...
PCM911T Posted 17November, 2011 Report Share Posted 17November, 2011 Pablo, I'd follow James' advice and stay as original as possible. I know of someone who went aftermarket and it required considerable rewiring and caused unexpected delays. You can buy complete new harnesses from Classic Wiring Looms or Vintage Wiring Harness in Melbourne. Google them or see ads. in Australian Classic Car magazine. Worth getting a sparky to look over it, before you pull it apart. Cheers Paul M Link to comment Share on other sites More sharing options...
Pablo Morris Posted 17November, 2011 Author Report Share Posted 17November, 2011 Thanks James / Paul M & Chris - really appreciate it. Had not found the wiring Harness replacements companies. P.P.I. this morning with the car and an Electrical guy (who came across to the "Dark Side") - works with me who I found out yesterday actually did his trade qual's as an Auto electrician in Germany. Lots to think about but today is the day, 2nd time up on the hoist and she is getting the "Glove"....... Really appreciate the feedback - makes the decision process easier....... Link to comment Share on other sites More sharing options...
Pablo Morris Posted 19November, 2011 Author Report Share Posted 19November, 2011 So, quick update from yesterday, 4 hrs on a hoist and 16hrs recovering from the disappointment of what was found.......... Ex USA car with an "interesting" conversion and certificateCompression test showed major rebuild requiredLeft Kidney bowl had been botched when repaired - requires complete reworkElectrical system is a fire waiting to happen Worst of the lot was finding it had been "snotted" real hard on the Front Left, again botched repair & explained why the car had sat in a shed for so long - could spend the asking price alone in sorting the body out & with what the 2 guys found with the mechanicals & Electrics would put the car firmly into "W.T.F." territory. Good news was the owner who was with us was genuine in that they did not know about the Front smack nor the rust (car had been handed down in the family!) Upshot is I walked - back to the drawing board - Thanks again for the replies - made the decision a lot easier........... Pablo Link to comment Share on other sites More sharing options...
Chris-p Posted 20November, 2011 Report Share Posted 20November, 2011 Sounds like the hoist inspection was well worthwhile. Shame it didn't work out but better safe than sorry. The right one will come along, always does.... Good luck with the hunting! Cheers Chris Link to comment Share on other sites More sharing options...
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