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Those 20's are nice powerboats! There was/is a white 20....original owner....mint shape that ran for decades in the Navasink river. Great ride, solid feel.
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Originally Posted by BLee
(Post 3090041)
Mine runs 85 at 5400 rpms, & 75ish at 4500-4700 rpms. I am however running a Bravo with a 21.
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Originally Posted by CHASIN THE DEAL
(Post 3090053)
Looks like you and C.J. will have to bring both boats to Boca to figure out how to slow them down!
http://vimeo.com/4374769 CJ & I both had 28's as well, and they have nooooo comparable traits to these 20's at all. Nothing about the way they run can be used to improve the way a 20 runs. |
Originally Posted by BLee
(Post 3090062)
Haha, I've got video of mine doing it's thing, so the non-believers need not reply! :lolhit::drink:
http://vimeo.com/4374769 CJ & I both had 28's as well, and they have nooooo comparable traits to these 20's at all. Nothing about the way they run can be used to improve the way a 20 runs. |
Originally Posted by BLee
(Post 3090062)
Haha, I've got video of mine doing it's thing, so the non-believers need not reply! :lolhit::drink:
http://vimeo.com/4374769 CJ & I both had 28's as well, and they have nooooo comparable traits to these 20's at all. Nothing about the way they run can be used to improve the way a 20 runs. Its got a LITTLE more then a small block w blower too!! |
I don't even know you and Greg says your good guy but every post you write you are being a dik and really cocky. I am sure you have a nice boat and sounds like you have done a lot or research on prop testing so how about you just keep to your little comments to yourself?? This thread is to let all my friends and good guys on here know what I have going on. Your obviously not one of them.
Originally Posted by rchevelle71
(Post 3089844)
Sorry if ya think I am being a Dik, but first of all the 24 Pantera has a 6'7" Beam, and yes I have an outboard, but RPM is RPM, and gear ratio is gear ratio, 75 MPH at 4500 with a 23 does not compute?? You would have to have a seriously low gear ratio, and almost no slip. To change from a 23 to a 21 would only yield approx. 200 RPM, not 1100. The boat I was referring to as "Tim's" was a 28 Pantera with twin 415HP 502's, not a Cig, but since Tim works for Cig, we will forgive that one:drink: Please get some video next time out, and if all is true, I would like to pay your way to South FL to help me set up your boat, cuz you got the miracle setup there:grinser010:
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Saturday was really cold and 40mph winds so couldn't test but me, Parnel and a couple of guys with 22' Donzis are running tomorrow afternoon!! Should be fun and congrats to Parn for running 80.3mph in his 16'!!
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Keep us posted and good luck. Any pics of Parns boat?
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OK,
so now that it is Monday, and I put the bottle down:drink: I apologize for doubting you. That is a very nice boat, as are the others on this thread. I am just saying the numbers do not compute, when I run a 1.5 ratio at those RPMs, and speeds thru any prop slip calculator, I get negative slip numbers. I see in the video, that I am mistaken, and I suppose that with enough power in a light boat, anything is possible, just that as an engineer I try to make sense of everything, and sometimes things happen that cant be explained. |
I know my 20 runs 75 mph @ 4500 rpm :boat:
with a Small Block with 1.50 B/H Rick OSG |
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