> If I remember correctly the 4000 series Slick mags are throw away Mags Sounds like I should just toss it now! What do >you suggest? (I would like to go with a dual magneto/dual-plug setup anyway). Thinking of calling GP, as they >specifically say they can upgrade/rebuild my HAPI). Thinking new dual plug heads are in the picture. Marc Lee Winnig
I wouldn't run dual plugs in a VW. They don't benefit from dual point ignition due to the shape of the combustion chamber and the fact that drilling for an extra plug weakens the head. If you absolutely have to use dual ignition (like in the UK) then drill for a 12mm motorcycle plug and use a helicoil. The combustion chamber is wedged shaped, and is ideal for single point ignition. Not like a Continental or Lycoming, which has a huge piston area and is designed for two plugs. If possible use a .005 distributor and a good generator with a battery instead of a magneto. The best mag. to use, in my opinion, is the Bendix 20 series with impulse coupeling. They're expensive. The new Slick mags are real good to use too. Great Plains sells a real good 40 amp belt driven alternator. Check it out. -Joe
