Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Rich? RPMS CRF 277 big bore and rev box Q?
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="Rich Rohrich, post: 1101392, member: 16241"] I don't know anything about it. Big Gun is a good company but 4 horsepower sure sounds like a lot from an ignition system. I'd need some serious proof before I would believe that claim. Getting the engine to breath better is generally the best way to take advantage of an increase in bore size. Whether you do that with a cam change, porting, or both, getting more air in and out of the engine is a good place to focus your attention. One thing is for sure, given how heavy that Rick Petersen piston is you don't want to raise the rev limit in the engine, or where it develops peak HP. If anything you should be looking for ways to lower the rev ceiling, and the peak horsepower rpm. High rpm and heavy pistons are a really bad combination, and that piston is [b]HEAVY[/b]. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Rich? RPMS CRF 277 big bore and rev box Q?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom