This is the exact rules from the Grand Bend web site, but with the rule change inserted. I sent this to Brad and would like to get more thoughts on the situation as well as this poll. Any thoughts can go be posted below. Like I said in the other post, I would run the 250 in my car and be the gunipig for the rule change. Another rule I think is a good idea is, that a Clymer book on your make and model engine (440 and 250) be avalible to the tech inspector uppon request. To make it fool proof for tech inspection.
2007 440cc OUTLAW SPRINT RULE BOOK
ENGINE SPECIFICATIONS:
Engine
- 440cc snowmobile engine, fan or air cooled only
- 250cc motocross engine, liquid cooled single cylinder
- Engine must have original casting number
- Cylinders may be bored to a maximum of .060 over standard size
- Original stroke must be retained
- “Turbos” are not permitted
- Engines will be randomly checked for displacement
Carburetors
- No fuel injection
- Round slide, flat slide, or butterfly carburetors only
- Twin carbs, 38mm maximum (440)
- Single carbs, 44mm maximuim (440), stock (250)
Mufflers
- Mufflers / silencers are mandatory
- A decibel rating will be determined
- No open headers
Radiatior - that would be up to Brad , but I think infront of front axl safely sheilded from driver or infront of engine on right side safely sheilded as well.
If you read this please vote, it s a poll
good idea i am all for it .. ;D
Spread the word and get others to come on and vote, the more votes the better.
Thanks
So why were you not at the drivers meeting in October when the 2008 rules were established? Are you sitting on one of these motors and that’s why you want to run it? 440 fans last a long time if you maintain and tune them right. Same goes for the clutches, stay on top of them and they last a long time.