Best mod 260 Zen motors

[acaptn]

Who does the best 260 mid mod motors? Going in Spint Cat. :unsure:

 

[Mike T.]

In no particular order:

-M&D Design

-Midwest Engines

-Butch-the-Boatman

-Carlos at C-C Racing

-your local engine guru

The 260 is a very strong and forgiving engine that responds very well to a few key modifications. Not exactly rocket science. So long as you don't do anything foolish.

 

[Joe]

Toxic marine has the best right now and a heck of a good price.

Joe

 

[Scott Schneider]

Best one is the one you do yourself !! see this link: http://pub208.ezboard.com/fjimsrcboatdockf...picID=195.topic

If you are mechanically incline? do it yourself and learn about your engine from the inside out. Scott

 

[Guest]

Thanks Mike, Joe I think I will go with Scotts suggestion and try this one myself. Thanks Scott for the info. I will be following your suggestions and let you know how It turns out.

Happy Holidays

 

[acaptn]

Sorry forgot to log on last post! Thanks again :huh:

 

[Mike T.]

I agree with Scott, and that's why I added that last one about the local guy. I do my own mods and also do a few for others at the home pond. Not taking anything away from the pro's - they do excellent work and have helped make the sport what it is - but when I can save that much money and still make a good showing, I have to do it.

If you are only doing a few things to the 260, I would recommend:

(1) Reduce piston diameter near the top as outlined in Scott's post to prevent seizure (until such time as Zenoah gives us the redesigned piston).

(2) W-cut the sides of the piston to improve flow from the crankase to the transfer passages.

(3) Raise exhaust timing to about 175 degrees. No degree wheel? That's "about" 1.5mm or .060" Don't forget to rechamfer the top of the opening.

The other things are good too, but to get in the running without too much risk of a boo-boo, those are where to start.