I need help!!

[exrider249]

I have a 03 400ex an I'm putting a 10:1 416 piston in it. Well the guy that does my motor work says that I need to put a hot cam in it because if I leave the stock cam in it. It will run hotter because it isn't flowing good. If so how does it make it run hotter?

[TheAwesomehonda]

I call B.S. on that mechianic but i'll help him look for his mind cuz i'm prity some he lost it.:devil: :devil: :devil:

[CJM]

The guy building your engine is an idiot. The cam only has an effect how long the valves stay open and little effect on heat.

Putting in a hotcam would be wise regardless because it will allow the engine to take much advantage of the power you will have with the new piston.

[exrider249]

Ok. Thank you. So I dont have to put cam in it right now? When I do put a cam in it, it will be a stage 1 hot cam.

[400exjoker]

maybe the mechanic thinks ur cam is shot?

[CJM]

You would be better served by a stage 2 hotcam. The bump in compression will easily give you plenty of torque so the lowend cam isnt needed.

[exrider249]

Ok. Well I'm just gonna wait an order a cam. I'll decide what to get when I order it. I appreciate the help.

[exrider249]

He also said it wasn't gonna run right without the hot cam.

[TheAwesomehonda]

Yeah hes just not right.... I run a 10:1 426 with a stock cam on my 01 400ex and it runs great.