nice.... sounds a lot like my cammed pocket bike did....LOL its really just a baby version of your x22... LOL
https://www.youtube.com/watch?v=X0TU9qiSyII |
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I have read that the Hotcam is a drop in and requires no mods to the engine. What kind of performance gains could you expect by only swapping cams and not doing the port/polish and piston swap?
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Any update on how that 18 tooth front sprocket is doing? Is it hitting the case at all? I wouldn’t mind buying one if it manages to clear the cover.
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Honestly, even if I weren't installing a cam, or raising compression on any engine these bikes run, I would still open up the exhaust port, as well as port match and smooth out the intake a little. If you don't believe you are capable of doing your own head porting there is actually a shop in Missouri that will do pretty damn good port work for a pretty good price (Around $150-200). This is their facebook page. https://www.facebook.com/LFRPowersport/ You can see some of their porting examples. Corey Lansdown is who I talked to and he is a knowledgeable guy that does good work. Get in touch with them and see what they tell you. As far as increasing the compression goes. Given the specs of the cam in question, I would want no less than a 9.5:1 static compression ratio to avoid losing low end power. Mid range and top end would perform just fine. It might not be quite the fire breather that Jerry is making, but it will have most of the benefits of the cam while also running cooler. I am not 100% sure what the X22R CB engine has stock, but usually the OHC motors are around 9:1 compression. So, at the very least you could have the head decked 2 thousands (.002 inches, or .5mm) to bump it up to about where you would want it. |
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Update. Bike has been parked in the shed since Tuesday night. When i got home Tuesday my my fan for my AC condenser unit decided to degenerate so had to take my truck Wednesday as it would of been a pain to carry a huge fan on the back of the bike so i took the truck. Not as much fun to ride as the bike. lol Turns out the supply house had the wrong fan so had to order a new one. Good thing i have a couple of window units for back up. Now it looks like we have rain for a few days. :ohno: I need to ride. I need my fix. Well last night i went in the shed just to crank up the bike. Man she sounds bad azz. :D Gave her a few quick revs and all of a sudden the head lights go out. :hmm: I just turned off the bike, closed the door and went back into the house. You know the saying bad things happen in threes? Well i wasn't going to touch the bike anymore cause i was afraid something else would go wrong. :ohno: Hopefully it's just a fuse or connection. I got a few days to of rain coming so i have plenty of time to figure it out.
So yeah, not so much of an update but it's all i got at the moment. :ohno: |
for anybody looking to port there head, I ran across this thread this morning. Very informational and with pictures. :tup: https://thumpertalk.com/forums/topic...onsiderations/
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https://cdn.thumpertalk.com/uploads/...a70980987d.JPG |
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As far as the thinner material around the guide. Where it is the thinnest doesn't really need much material removed anyway. Most of the material removal is at the bowl and especially next to the guides just leaving the bowl along the roof of the port right next to the guide. |
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