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Turbo

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The guy says it's still running fine and hits 90mph no problem. I saw some vids a few years ago of people sticking a turbo on their WR250R. Can't seem to find it now. I do think that you'd probably have to upgrade some engine parts to cope with the power tho

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Key is in tuning, make sure the boost comes on late and smooth...

 

I'd bet on bigger injector and probably fuel pump, the rest is fabrication

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I'm all for turbocharging everything. I'd like to see more from the builder though. He claims in the comments that a fuel controller was all he needed, dubius but promising. 9lbs give or take isn't always devastating to most stock motors.

I do have to wonder if (with proper heat shielding and some cooling ducts) there wouldn't be room where the airbox is... Could maybe put an air cleaner on it too, lol.

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I'm all for turbocharging everything. I'd like to see more from the builder though. He claims in the comments that a fuel controller was all he needed, dubius but promising. 9lbs give or take isn't always devastating to most stock motors.

I do have to wonder if (with proper heat shielding and some cooling ducts) there wouldn't be room where the airbox is... Could maybe put an air cleaner on it too, lol.

 

I too have wondered about putting it where the air box is  but up in front of the engine keeps the weight lower and should spool a little faster. If I didn't need to rebuild my XR650R engine this winter I would have already ordered a turbo.

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My mind always wanders to turbos. Won't happen to the crf any time soon (at least until other projects are complete) but always entertaining to consider anyhow.

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