Brian, >From my experience in using Platinum Plugs in a VW is don't use them. I tried using them in my Formula Vee. The (SCCA) rules stated that we could only use a point style ignition (Bosche 009) with a Blue coil. Which would equate output-wise to a magneto. I tried all different heat ranges, and played with the gaps. The bottom line was with the Platinum Plugs, I'd end up with a top end missfire, and the plugs just were not suited for extreme duty. Bear in mind the application that I was in. 1200cc's, 7800 rpm, WOT 90% of the race, in fact you rarely lift the throttle, and the engine is "singing" along at 7800 rpm more often than any other rpm. What did I end up using? Regular cold heat range Bosche Plugs, side gaped and indexed to each cylinder. Plug gap was .035. The side gapping "unshrouded" the center electrode and with the plug indexed slighly towards the exhaust valve, I never had a plug overheat, foul or high speed missfire. What I noticed with the Platinum Plugs was that they didn't have enough surface area for the spark to jump across. The actual spark was smaller when compred to a regular Bosche Plug. This is what I believe was the problem with using them in that environment. --- Brian Kraut <eng...@earthlink.net> wrote: Does anyone have experience with both on a > VW conversion that > can comment on which is better? Also, can anyone > recommend any > particular brand of aircraft plug over another? > > > _______________________________________________ > see KRnet list details at http://www.krnet.org/instructions.html
===== Scott Cable KR-2S # 735 Linden, MI s2cab...@yahoo.com __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com
