whats the best cam for a 686
#1
whats the best cam for a 686
im am new to this forum. i am building a 686 out of my raptor, and was wondering if anyone knows anything about the sparks hi-rev cam. i have read a lot about the stage 2 hotcam and it sounds good but i am lookin for the most top end power i can get.i need to know if the sparks cam would be much of an inprovement on top over the stage 2, because the stage 2 has a lot better price. the reason that i am thinkin about the sparks cam is that there is a few ds 650s that i ride with and i need a susprise for them. any advice will be greatly appreciated. as of right now i have a 12-1 je piston, port and polish, 1mm bigger valves, and a sparks pipe. and i was also wondering if anybody knows if the sparks cam is a megacycle cam and what grind number it would be.
#2
whats the best cam for a 686
The Sparks Hi -Rev and the 685 Web cam will give you more top end pull over the stageII. If top end is what you are mostly wanting this would be the way to go; just make sure you can feed either of these cams enough fuel to get there best performance and not lean your motor. Sparks cams are megacycle cams(280x4 if I remember right). Slim
#4
whats the best cam for a 686
im goin to be running 35 mm fcrs. were we race at is about 500 feet long, and was wondering if the web 685 and the sparks Hi-rev cam will be much different on bottom than the stage 2 cam, because i want a lot of top end im just wondering if with the web or the sparks, do you all think that it will still be fairly decent of the bottom. i still want to be able to go on a trail ride if i want to. does anybody has anyone here ever switched from stage 2 hot cam to a 685 or sparks hi rev wondering what differance there was
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