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Old 05-06-2008, 08:26 PM   #1
ZXALAN
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Hey 50 engine pros....?

What do you guys think about swapping the entire engine as opposed to a piston/cam/head kit on the stock shortblock?

I came across this setup and its about the same cost as building an 88 except its 100cc, ported head and a few other things.... Its a 4 spd manual but for an extra charge, you can get it fully auto(which I would probably do).....there any downsides to buying long block kits like this? are they chinese junk?

http://www.ahpminis.com/store/produc...products_id=36

Just looking at all the options.
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Old 05-06-2008, 08:31 PM   #2
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i would stick to the honda myself. . . AHP knows what they're doing IMO, but honda's reliability is where it's at on the fiddies
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Old 05-06-2008, 08:39 PM   #3
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Yeah, I figure honda's bottom end would be more reliable in the long run but ....if I got a few years out of it and it makes triple the HP of a stock 50, its probably worth it. I just wonder about the power band, I wonder if its high strung with crappy bottom end tq? I need some tq down low for whoolies.....
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Old 05-06-2008, 08:57 PM   #4
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if you want whoolies keep it stock and practice. BBK's make the bikes real "twitchy" and harder to ride IMO. I think you should just find a stock crf70 takeoff cylinder and head if you want a little more power but still want it stuntable. i had a 134 kit on my 110 and that bike would loop out like a schoolgirl on a litre bike!!!
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Old 05-06-2008, 09:16 PM   #5
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stock motor makes wheelies all day but 88s are a good mix
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Old 05-06-2008, 09:28 PM   #6
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Quote:
Originally Posted by mekrew View Post
stock motor makes wheelies all day but 88s are a good mix
Mekrew, what you think about the AHP 100cc? it comes with a manual clutch and I think I might have em put an auto in it(my GF rides it).... Would the AHP stg 1 be a good "run around the pits", entry level stunting and occassional neighborhood racing motor? Apparently they start out life as a Lifan which I am not that crazy about but the AHP guys supposedly change all the guts out. Reading up on them now at planet minis. Seems a lot of people like them....

I am just looking at bang for the buck and reliability. I don't have a problem slapping a TB88 kit w/race head on my motor but , its gonna cost $400 which ever way I go.....at least with the AHP, I will get the clutch upgrade, an extra gear, new covers/levers etc and its ready to bolt in....

Just looking at different options.....I don't want it to be "too much" though as I am staying with the stock swing arm.....just changing the sprockets to something taller.
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Old 05-06-2008, 09:33 PM   #7
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ahp i hear makes good motors ... ya if your gf is going to ride it go auto clutch , but manual clutch is sooooooooooooooooo much fun and if you want that extra speed an 88 or 100cc is good but not too much

stock swinger shouldnt matter with bigger motor
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