PDA

View Full Version : Velvet Drive 1017 Question


flying tomato
08-01-2009, 01:13 PM
Does anyone know how much HP the Borg-Warner Velvet drive model 1017 (71C) can handle?
mrfixxall
08-01-2009, 01:26 PM
Does anyone know how much HP the Borg-Warner Velvet drive model 1017 (71C) can handle?


550-600 hp as long as you dont do any major holshot with it..
DONZI
08-02-2009, 06:20 AM
Does anyone know how much HP the Borg-Warner Velvet drive model 1017 (71C) can handle?
Here are the specs. for you.

http://www.marinegears.com/catalog/cat-bw-dr1.html
flying tomato
08-02-2009, 10:15 AM
Seems to be some disagreement.
MOP
08-02-2009, 11:02 AM
They do under rate them some what called CYA, when I was running my SK boat I found the 71's did not hold up under high RPM, I shattered pump gears two times and had the pinion carrier destruct which destroyed just about everything in the case. I swapped to a 72 but also re propped to get the engine down about 1,500, that one was still going when I sold it
MOP
08-02-2009, 11:11 AM
My SK had a 327 .030 over, Duntov green cam and camel backs, I ran 29" dry stacks. I can only guess that it made a little over 300 HP, had a wicked lope at idle it was a hoot and one of the loudest ones on our bay.