Is any one piston better than another?

[cheetah]

Is any piston better or produce more power than another or are they pretty much all the same? I was looking to Wiseco, but is anything else better? BTW this is on a stock bore.

[Colby@C&DRacing]

The JE and the Ross are much better than the wiseco for the 400ex.

[cheetah]

Thanks Colby. Do you prefer JE or Ross?

[Colby@C&DRacing]

There is no real difference between them. I like both same price and look almost the same:D

[Ralph]

they "SAY" that the wiseco compression is not accurate so a 11:1 is not realy 11:1. the ross are said to be lighter pistons so the rev faster, and the je are said to be reliable and what not, i would go with the je

[Colby@C&DRacing]

There is a few grams of weight differnce between the Je and the Ross. Jim at Ross ( the motorcycle piston designer) used to be Jim at JE ( piston designer) so you can see the pistons are almost the same:)

[cheetah]

Will the weight difference have any noticable effect on the power?

[TheChknhwk]

Originally posted by Colby@C&DRacing
There is no real difference between them. I like both same price and look almost the same:D

So what Piston are YOU using?