10-17 borg warners
#1
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Joined: Jul 2010
Posts: 134
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From: Chester,Ct
Good Morning
I'm pretty sure this has been posted here but couldn't find it. what is a comfortable H.P. level that a pair of borg Warner velvet drive transmissions and T.R.S. drives will handle. ended up getting rid of all the other boats i was messing with and bought a 1985 34' scarab no engines or drives. has a pair of Borg Warner 10-17-016's 1 to 1 ratio, Boat had Bigblocks and T.R.S. drives. It does not have thru hull but will when I put it all back together. Looking for decent speed and dependability.
the other question is if anyone remembers seeing the boat anywhere. name on it was Thunderball.
I'm pretty sure this has been posted here but couldn't find it. what is a comfortable H.P. level that a pair of borg Warner velvet drive transmissions and T.R.S. drives will handle. ended up getting rid of all the other boats i was messing with and bought a 1985 34' scarab no engines or drives. has a pair of Borg Warner 10-17-016's 1 to 1 ratio, Boat had Bigblocks and T.R.S. drives. It does not have thru hull but will when I put it all back together. Looking for decent speed and dependability.
the other question is if anyone remembers seeing the boat anywhere. name on it was Thunderball.
#2
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Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
A Buddy of mine has a 1987 Scarab III. Originally had twin 370HP 454 mercs with 10-17 trannys. Engines now make around 425-450hp, trannys been holding up. It wouldn't be all that hard to convert to 10-18 trannys, since engines are out now. You will have to move the engines forward about an inch or so if I recall. Or, you can have them upgraded, I think they can be built to take a little more. Call Mark Berman at Bam Marine.
What kind of power are you putting in it?
What kind of power are you putting in it?
#5
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Joined: Sep 2009
Posts: 918
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Huber always recommended type F fluid and wouldn't warranty his transmissions with anything else. Borg Warner did and I think still does, recommend Dexron . Go figure ! For extended high rpm tap the vent, install a hose barb and run Up to a small puke tank that will let the fluid settle back into trans when it can . The venting applies to 71's or 72's........
#7
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Joined: Sep 2009
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Fwiw Borg Warner rated the 71's under 400hp and around 400#'s torque. I can tell you from experience they will take more...Doesn't cost a lot for a freshen up ,which you probably should do. You may want to look into what lil red said about upgrading ,for peace of mind
From Borg Warner-- capacity/ ratings ..... http://www.velvetdrive.com/7172.html 71's are on second pdf classifications/ratings
From Borg Warner-- capacity/ ratings ..... http://www.velvetdrive.com/7172.html 71's are on second pdf classifications/ratings



