Recent content by Simon y

Hi guys, A big thanks to everyone who contributed to my last thread “classic911 engine tweak”. The car is flying, and I am very happy with it. It will goin to have the Autronic SM4 ECU reinstalled shortly, but there is a job I needto do first as it is going to be on the dyno for quite a while...

Hi, me again, all a bit quiet after my last post, so I am going to keep this brief. Can anyone tell me how much vacuum advance you would get out of a Porsche distributor on, say, a 2.7 Rs? I can find how much static advance, and how much maximum advance should be, but nowhere can I find...

Alrighty then, just another report on things that have happened ICW project Porker and a question I hope somebody can answer. I was having trouble with the fuelling when the engine hit 4000 revs, and put this down to a change in the weather, (see last post) this might have been a mistake. I now...

Hi everyone who has chipped in over the last year or so, and still keeping an eye on project Porker. Towards the end of summer I had the car going well, and it seemed that it was consistent enough to book a day on the dyno for the final touches. I have to say that without my own laptop and the...

Hi guys, it has been a while since I last posted any progress on project porker, but I have had plenty of other things to do, and only got back to it recently. My latest efforts have really made a difference, and it is quite interesting what I found. First off, I didn't get around to putting...

Sleeper, Yes there is a regulator in the fuel system, I think we are running at 2 Bar, but I would just have to check that. The system was adjusted with a very accurate gauge, but I don't have a fuel pressure indicator in the cabin. I think you are right about trying it with the carbs...

Sleeper, I am glad you are prepared to keep on reading my posts, and I hope you are coming to realize that I have tried to carry out this rebuild/modification using best practice, tried and trusted methods. Like I said right at the beginning, there must have been so many 2.7 engines hotted up...

The company that did the original rebuild was started and run by a guy with an impeccable record “back in the day”. What I didn’t realize at the time was that he had retired some time ago, and the company was being run by others, with no input from him. The new owner has since taken a position...

Sleeper, Well spotted, however the engine in there is not the engine originally installed in the car. A previous owner did the wide body, 930 turbo look conversion and obviously wanted a bit more go, so he picked up and installed a 2.7 engine from 1975 (engine number confirms this, and was...

Hi, I just had a look at your video and have to say your car looks very neat indeed. Very similar to mine, which started as a 1972 2.4T but now has a 2.8 engine (staretd as 2.7) and a previous owner fitted wide body arches, bumpers etc. so it appears to be a 930. Just one question, in the...

Thanks for coming back, it sounds like you have seen this sort of thing before. The original engine rebuild and modifications wer recommended by, and carried out by a leading Porsche specialist of some 30 years. The things that were done over and above a standard rebuild were. 1. Increasing...

If you have a look at some of the American Porsche parts suppliers you will find that they can supply a "helper spring" which reduces the force needed to operate the clutch. Maybe this is only for the older motors with the 901 or 915 g/box, but maybe they do it for newer models too. Try Auto...

Thanks for the response. I wasn't expecting anything so soon. I like the "old school approach" reading plugs is a skill a lot of people seem to have forgotten these days. I also cut my teeth on british bikes back in the day and some Jap 2 strokes afer that. I moved up to 4 wheels after a couple...

When I started with the job my first inclination was to buy a bigger engine and just drop it in. Job done, more power, no hassle. I spoke to a few potential suppliers, and was convinced that a rebuild incorporating the right parts was the way to go. My engine rebuilder was a company with decades...

Hi Guys, this is my first post, I'm looking for anyone who has gone through a 911 engine rebuild, built in some hot parts and actually made it work. I have gone through a string of experts and apart from spending more on the car, than I originally paid for it, I still haven't got a result. I...