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Originally Posted by IRONMAN
(Post 3510973)
and the pointy ones can cause too much stern lift and prop blade cracking. on V bottoms that need positive trim. The Hydromotive ones can feed the prop more clean water and lift the bow more.
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Post a pic of your drive...
Originally Posted by 1bad38scarab
(Post 3509404)
I just molded on a set of bravo high speed nose cones on a pair of my trs I'm sure they will help a little bit,
but they look really cool resembling a speedmaster, I also cut off the factory trs skeg and welded on some new longer sleek sharpered more modern looking skegs I doubt will see any mile per hour increase but they sure look baad hanging of the back of the boat. christian Post a pic of your drive after the work. Mine needs a skeg now and Id sure like to see what yours looked like after the nose cone addition and skeg replacement. Thanks. |
IMO I would take off the other nose cone at that speed. I had my Formula running with out them. I blew a drive and my replacement drive had a cone on it. I lost a couple MPH. This was on a Formula 311.
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TRS - LH with Hydromotive nosecone - for sale
TRS Nosecone - I have rebuilt TRS LH with a nosecone, thinking of selling it - Yes, let me back up that statement about external steering, its not very good without the rams -
I have a set of TRS drives (LH & RH) in great condition and one that I just blew the lower on (non-cone RH). Thinking about going without the cones until I get my external steering rigged - so taking offers on a LH with cone - or a LH without in good condition - PM for pix |
not to step on anyones thread,but somebody tell me about the issues w nose cones and the steering.i have external hyd steering on my 10meter ex.
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Originally Posted by bcfountain
(Post 3785302)
not to step on anyones thread,but somebody tell me about the issues w nose cones and the steering.i have external hyd steering on my 10meter ex.
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Ok, good thread....94 Cig Top Gun with 700 HP a side and running about 80. It has TRS drives and hydraulic steering too.
You guys recommend the nose cones???? thanks..... |
I have a 35ss Sonic with 700sc hp running mid 80's bravo drives , prop shafts are low (7" below bottom of boat ) I added imco nose cones and lost 3 mph from the extra drag . IMO if the prop shaft is deep like most older v bottoms they do more bad than good
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wish i would have known this when i had my drives redone. i would have had the cones knocked off. oh well, since the boat since on land 99.9% time, they look cool. :)
http://i534.photobucket.com/albums/e...magejpeg_3.jpg |
Nosecone mods
According to Todd at Hydromotive, the speed improvement is 1 MPH@70 and 2 MPH@80 I am torn as I have a spare with a nosecone so I put it up for sale on eBay - its a pain if you want to swap out a spare drive and need more inventory http://www.ebay.com/itm/221133311109...84.m1423.l2649
The real advantage is the prop slip goes from an average of 15% to 12% per Todd at Hydromotive. better MPG |
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