Bruce, I was thinking the same thing. We should open the F500 engine to any mass produced, (buy mass produced, I mean more that 500) production 440 engine. Limit it to two 38MM round slide carbs, no turbo, any exhaust. This is the engine that the snowmobile manufacturers race.
Richard ----- Original Message ----- From: "Bruce Kapraszewski" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, June 05, 2006 6:42 PM Subject: Re: [F500] hottest sleds > Yamaha VMAX-4 750cc 2 stroke around 140 bhp. The current SkiDoo/Rotax reed valve 440cc production racing sled around 110+ bhp. Why F5 doesn't use the SkiDoo/Rotax 440cc race motor escapes me. > > Jan Schmidt <[EMAIL PROTECTED]> wrote: I dont know what the hottest sleds were, but I can tell you what the 2 > hottest mass produced motorcycles were. Kawasaki made a Kh-750 (2 stroke > triple) in the early to mid 70's. This bike was rated at 120hp. The > bikes nickname was "widowmaker." Wickedly awesome power. The engine was > air-cooled. The other bike that was more docile, but more durable, was > the Suzuki GT 750. It also was a 2 stroke triple, but water cooled. It > was around 100hp and nicknamed "water-buffalo". These engines were used > for many years in SCCA's sports racers (DSR). Both of these bikes can be > found on ebay. The Suzuki goes for around $2000 and the Kawasaki goes > around $5000. I have seen clean restored Kawi's go for $15,000. 2-stroke > bikes pretty much disapeared by 1980, except for the dirt bike category, > which were all single cylinders engines anyway. The one holdout was the > Yamaha 350 Kenny Roberts special (Daytona Special). These are twin > cylinder bikes and water cooled. They disappeared around 1986, if memory > serves me. I would think for a car project that the sled engines would > be a lot better source, unless you wanted a manual shift transmission, > like all of the bikes had. > Bill Schmidt (KNow more about bikes than I will ever know about F500) > > >>> [EMAIL PROTECTED] 06/05/06 10:11 AM >>> > Group > Which mfg makes the most powerful snowmobiles and/or has the most > success in > racing snowmobiles? Are these engines two or three cylinders and are > they > all two strokes? Of the two stroke bikes, which are the best and are the > > transmissions capable of being adapted to our present engines? (Not > worried > about present F500 limitations) > Ed Capullo > _______________________________________________ F500 mailing list - [email protected] To unsubscribe or change options please visit: http://f500.org/mailman/listinfo/f500 *** Please, DO NOT send unsubscribe requests to the mailing list! ***
