Scotty
Active VIP Member
No ones fired - up....I'am just jealous
LOL :d:d Now thats what I call a genuine retratction! Well said.
No ones fired - up....I'am just jealous
where do the 427 hp numbers come from?
you mean the one on june 18 this year?????Dynotech dynoed one
I think you have to step back from the pipe. The only kits out there are custom built kits on R&D sleds. MCX has a kit coming, but there is not one to be had at this point. The sled that was Dynoed at 427 hp was a custom built race kit running high compression with 40.00 buck a gallon race fuel. Expect about 230-250 hp with any off the shelf kit. There is no way a long tracked XR Chassis is coming at 500 lbs with a turbo bolted on it...I would say shoot for 575-600 lbs. I seen one of these motors apart on Friday, and they do look tough and have huge valves, but it will be hard to tune the cam timing with fixed gears joining the cams. We will see how long the finger followers last running alot of boost, but they will probably be ok. A single throttle body is going to have uneven a/f distribution, but will probably be adequate at lower boost levels. This is not the same motor as a watercraft...check it out for yourself.The new 1200 already has a few turbo kits and it also is uder 500lbs. There is talk of a n1200 turbo not supercharger, from factory for 2010 or 2011. Also the kit makes 427hp tuned for th 1200. As for the motor, i think the motor will be awsome. I ave the same motor in my seadoo. and i have 240 hrs on my seadoo and not one problem.
but it will be hard to tune the cam timing with fixed gears joining the cams. Beer:
Ya they could be adjusted with pins. The cams do drive each other. There should be quite a few of these sleds on the snow by early spring, but probably none making over 300 hp. I might try one next year if they look like they work. I still don't think the chassis will take well to high hp numbers. If you look at a Yamaha bulkead in comparison, you can see why there are no belt problems, chain issues, etc.are you saying the gears are part of the cams? Or are the cams chain driven, but the cams drive each other directly?? If so, then offset pins will be used like on some motorbikes and most cars to properly time the camshafts?? I'm just curious.....