924Board.org

chrisvs · Joined: 26 Jun 2012 Posts: 25 Location: North Bay, Ontario

My apologies gents if the answer is here and I haven't found it....

Has anybody used these "Hot Spark" EI units to replace the points and condenser? I am starting to look at tune up parts, and was wondering if it was worth it to do this conversion?

Any thoughts are welcome.

http://www.hot-spark.com/1-porsche.htm
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1978 924 4-spd

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

It looks similar to a Pertronix solution. Can't see why it might not work, its similar in function to the later style ignition system used on the 79 and later cars.

Anything solid state will almost certainly be better than points and condenser.

The curve will still be managed by the internals of the distributor, which is a good starting point.

So if you're ultimately looking to improve the ignition curve, you'd need to have someone alter the curve with different weights, springs, etc. That or lock it down and manage the timing using a digital ignition control solution, which might be ideal, but requires a certain amount of knowledge and work to accomplish.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

daniel · Joined: 18 Jun 2009 Posts: 687 Location: Sydney, Australia

I got one of these of ebay, didnt work at all. I now use the pertronix one, works great
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Over the top of skyline, total brake failure.... hit the wall at over 200 kp/h at the dipper, so anyone who has to brake for the esses is a pussy.
1977.5 Race Car, CAMS Group S Spec
1989 944 Cabriolet

chrisvs · Joined: 26 Jun 2012 Posts: 25 Location: North Bay, Ontario

Thanks for the feedback gents. I am not looking at improving the curve, just replacing the points and condenser once it is time to service them. I will look into the pertronix one if that is the reliable solution.
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1978 924 4-spd

!tom · Posted: Tue Jul 24, 2012 12:19 pm Post subject:

What points and condensor? A '78 doesn't have points.
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78 924 NA
5-lug

Horizonblue · Posted: Tue Jul 24, 2012 5:17 pm Post subject:

I installed HotSpark in my car, approx 1.5 year before pulling the engine and starting the EFI conversion. I also replaced the coil, spark plug wires, and spark plugs. I can recommend such a tune up. The engine could idle low and steady, and was easy to start. No problems at all.
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Euro 924, 1976

"If you can't fix it, don't break it"

/P.G. Andersen