400ex v. 660r

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Oct 31, 2006 | 06:52 PM

nick250r

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Trailblazer

Joined: May 2006

Posts: 27

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400ex v. 660r

what kind of work must be dont to the motor of a 400ex to make it keep up with some lightly modded raptors like pipe and filter? my friend has one and was wonderin what he can do to make it more powerful.

Oct 31, 2006 | 08:44 PM

Trx440

Pro Rider

Joined: May 2000

Posts: 1,054

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From: Kansas

400ex v. 660r

A well thought out 440 engine is plenty to keep up with a Raptor with pipe and filter. This is the oldest flame war in ATVConnection history. Trust me.

Oct 31, 2006 | 09:33 PM

paintballbanshee

Pro Rider

Joined: Jul 2005

Posts: 984

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400ex v. 660r

well, i stomp on 440ex's , not too much accel but i still kinda beat them in acceleration, but once im i hit 5th gear i take off like a bat out of hell, or a raped ape, and ummm aa speeding bullet or something