FormulaRX

Out of curiosity, does anyone make a conversion kit for 964/993 to ditch the twin distributor cap setup in place of a single 12 plug cap/distributor like the old school RSR race cars of the 70s?

FeralComprehension

Never seen that, but.... have you priced out those 12 plug dist caps? Make sure you're sitting down...

FormulaRX

Yes I know they're expensive but I remember a while back there was a company that made twin plug distributors for Porsche using a cheaper jaguar V12 distributor cap

Steve Weiner-Rennsport Systems

This is quite possible to do as we've done a few on Motec-equipped cars, however,....you lose the Hall Sensor feature which renders the knock-sensors inoperative. Not a good idea for a street car.

robt964

But you can fit a cam phase sensor to achieve the same goal right?

Or how about distributorless :-)

tdiquattro

by the way Rob, cam sensor is available here ... bottom of page for future ref,

http://www.goingsuperfast.com/Porsche.html

robt964

$60 !!!! I ain't paying that

That's awesome - had I known I would have skipped on machining my own.

AOW162435

Wow! Any more details on this setup?



Andreas

Steve Weiner-Rennsport Systems

Beautifully done!!!

While I've never fitted a Hall sensor inside one of the RSR-type twin-plug distributors, it may be possible. I cannot say without investigating the fitment to see whats needed. The Motronic EMS system needs that in order for the knock-sensing to work.

Now,....aftermarket Engine Management can use cam sensors and that's what we use with our Motec engines along with C-O-P ignition (which performs better than coil packs).

robt964

I think one day I'd consider COP (for engine bay aesthetics more than anything) however the costs are much higher. The bosch motorsport 3x2 coil packs are £90 each (you need two) where as the COPs are roughly £100 each and you need 12!! I'd also possibly need a few more ignition channels (and external bosch drivers) depending on how its configured.