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Old 01-14-2008, 10:21 PM
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my dad has a zt 280, its got a brand new 502 mag in it, took it out yesterday and only got 61mph out of it running at 4300 rpms but should go 67mph at 4600-4700rpms. Any suggestions on what could be wrong, i thought maybe a differrent prop
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Old 01-15-2008, 11:50 AM
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Originally Posted by checkmate23
i have 1990 maxxum 22.9, is there a difference between a 1991 maxxum

Hi, I noticed your post, as I too have a Maxxum, but a 1989. Do yu have any pics?
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Old 01-16-2008, 07:08 PM
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i do but new to the site dont know how to put a picture on here maybe you can tell me how
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Old 02-25-2008, 09:46 PM
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my dad has a zt 280, brand new 502 magonly hitting 61mph at 4300 rpm's, do we have to change the prop. Any suggestions on what could be wrong
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Old 02-26-2008, 05:34 AM
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Need to know the prop on it now and drive ratio. Then can decide if you are over-propped or if engine is down on power.
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Old 02-27-2008, 07:00 PM
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are you trimming up? its a stupid question but trimmed all the way down and thats excactly what mine does
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