Big Bore Kit Questions

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Apr 2, 2012 | 02:56 PM

#81

eyyopomps

Junior Member

1st Gear Member

Joined: Mar 2012

Posts: 26

From: Daytona Beach, FL

How are the big bore kits with the klx's cooling system? I know especially with the 351 kit the cooling ports are right against the sleeve..

Apr 2, 2012 | 03:21 PM

#82

zomby woof

Senior Member

Joined: Jan 2008

Posts: 869

From: SW Ontario, Canada

1st Gear Member

Quote:

Originally Posted by 2veedubs

At what point in displacement does the stock head/cams restrict performance. The way the 351 drops off after 6500 rpm makes me wonder. Nice work combining all the dyno graph info.

250 cc. The stock cams are too mild.

Dynos are tuning tools, not horsepower comparison tools, and comparing numbers from different bikes on different dynos is a complete waste of time.