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Michael, that pic if of Matti's car. I am also curious about his set up. Myself am running all Porsche. That is, *when* I am running.
I can confirm it's a worthwhile upgrade! You'll need a standalone to run an aftermarket coil pack. I was harassing V2 rocket about converting to EDIS using a MegaJolt controller: http://www.autosportlabs.net/MegaJolt_Lite_Jr..
It's been done on a 924S with great results and is not expensive, I think around $250. However if you have a little more spending money, I can't help but make a shameless plug for full standalone, my car pulls harder than ever and is infinitely more reliable.
First stage of modifying the B.S. areas was to tap the galleries. tried for metric but the hole size of the gallery preferred a 1/4" bolt. After cleaning the threads I applied loc-tite & they snugged up nicely. Bolt length is about 30mm of thread.
Rumour is this modification helps improve lube to the crankshaft.
Applied blue loc-tite to bolt threads & ground the bit holder down so from torque wrench to pit, it's all no-flex 3/8" size tools. Cam tower is now installed.
[IMG]https://cimg0.ibsrv.net/gimg/rennlist.com-vbulletin/2000x1124/80-loctite_66640cad9aeec4e58b7cc44a957974d129f7dba7.jpg[/IMG