2-stroke vs 4-stroke

Paul Tartaglia · Posted: Wed Aug 15, 2001 5:59 pm Post subject: 2-stroke vs 4-stroke

Anyone interested in the brewing 4-stroke vs 2-stroke competition in the motocross world should check out the Sept. edition of Motocross Action magazine. A good ariticle that raises some interesting points facing the AMA & Motorcycle manufactures. This is something that will eventually affect us since we are dependent on bike engines for our 125 & 250 classes.

Also check out Sept Dirtrider for a short article on the way cool VOR 501 from Italy. Magnesium & billet 4 banger with a real 6 speed box. Very sexy!! I better go measure my frame rails on I.C.E. kart!!

Could be interesting in a couple of years.

Gary Kozuma2 · Joined: 03 Aug 2001 Posts: 446

Paul,

I hope your right! As a future 250 racer I think we do need more choices than we currently have. But I would also say we need solid, fundamentally sound, long term solutions.

I like the idea of some kind of controlled 4 stroke motor that will last for at least 100 hours of hard running. If I could pay $3,000 for a motor like that, and had a reliable series to run in with a reasonable following, I would definitly be interested.

I'm not sure about running all these motors against each other though, as the differences in these motors seem to make large differences, like 5 speed v. 6 speed. I suppose you could try to balance with weight, but it would be better if we had 100 guys at a race with 4 different packages.

Just promise me that no one is think about 250cc clutch karts!

Gary K.

Chad Stapleton · Joined: 19 Jul 2001 Posts: 4403

""Just promise me that no one is think about 250cc clutch karts!""--Gary K.

Gary, I posted a few weeks ago that 1500, of the Biland SA250 4-stroke "clutch" motors were reported to be on route to USA.
Check the thread in the 4-stroke forum.
There are various forms of these purpose designed 4-stroke kart motors available in Europe.

Gary Kozuma1 · Joined: 26 Jul 2001 Posts: 386

quote:
Originally posted by Chad Stapleton:
""Just promise me that no one is think about 250cc clutch karts!""--Gary K.

Gary, I posted a few weeks ago that 1500, of the Biland SA250 4-stroke "clutch" motors were reported to be on route to USA.
Check the thread in the 4-stroke forum.
There are various forms of these purpose designed 4-stroke kart motors available in Europe.

Hey Chad,

I've seen the SA stuff and from what I read, it's not really a package that can run against the current 2 stokes and the new talked about 4 stokes in the 250 "class". I guess I should clarify that I'm referring to the 426cc type motors which make 60-70 hp. I see the Biland as a 125 level motor, but please let me know if that is not accurate.

Thanks,

Gary K.

[ August 16, 2001: Message edited by: Gary Kozuma, Vista CA ]