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How much weight are they shaving of the factory bikes

another thing to think about is that the 450s have been racing since around 03, its 09 and all of a sudden its a problem?

From a spectators point of view, I like the 450s. From a engine builders point of view, if they are to much, why are the teams making them more? Facts are the stock 450s pull about 47-48 on my dyno at the wheel. The pro bikes are anywhere from 55-60 at the wheel. I've built a 450 to 68 at...

Don't take it the wrong way but the top speed of a 250 is over 70mph and you can swap on one of them too. I think with the abilities of the riders at top level, they can control them just fine. I think Stanton is pooping out his mouth by saying there to much, But there OK for Reed...

Haven't you guys seen 6th mile? Its Rabbit, you know, Eminem!!!

Yea, Eddie is right. The throttle bodies in general don't flow like carbs. The throttle bodies off the kawis are smaller. The flow #s just aren't there. The best scenario is to mod the Honda one or a aftermarket one all together. Though we have the fix for the current ones, I'm wondering when someone will come out with a...

The issue that I Think that has been mostly over looked is the fact that the 50mm only flows as much as a modded 42mm carb. That should tell you that the velocity #s are allot lower going into the port. That creates lower port pressure at low RPMs. The overall effects are lack of torque and throttle response down...

what about them?

PC has been on top of the game for a lond time, good engines, riders, etc..... I think there are allot of engine builders that have cought up to what they have been able to do in the past and currently. FC uses some of there parts but at the same time they do there own R&D and use stuff...

oops!

thought I would post it.

My mind races and I can't sleep sometimes. Yea, send it my way. We'll through it on and tune it in proper with the dyno to see what its got. I have a 09 in the shop right now thats over 10hp than it was stock with the stock pipe still on it and running pump gas. We'll also try...

remap ECM and TB insert.

no power gains on my dyno and they do let dust by.

Nice ride Weston!

just reading the tittle of this thread made me LMAO

just wondering, were your exhaust valves shadowing the pockets on the piston?