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| 8x4 or 7x4 http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=41&t=32139 |
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| Author: | willtodo [ Thu Sep 06, 2012 8:37 pm ] |
| Post subject: | 8x4 or 7x4 |
Im getting 3700rpms with a 346cc engine on a longtail with an 8x4,, medium load,,,heavy load im guessin its guna drop down to 3500 or so,,,,,will i be better off with an 7x4 ,,,,i think it would hold the 4000 mark for all loads,, but will the result in over all speed be a loss? |
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| Author: | willtodo [ Sun Sep 09, 2012 10:13 am ] |
| Post subject: | Re: 8x4 or 7x4 |
nobody? |
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| Author: | waterfowl1 [ Mon Sep 10, 2012 3:42 pm ] |
| Post subject: | Re: 8x4 or 7x4 |
smaller prop= more revs in water versus larger prop and yes, you will lose some speed, but then again longtails aint built for speed anyway. |
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| Author: | ironman_gq [ Mon Sep 17, 2012 8:12 am ] |
| Post subject: | Re: 8x4 or 7x4 |
I think at 3700 you should be good, I would rather have more speed and keep the r's down a little. Valve springs will last longer too. |
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