# 5 drives vs # 6
 

I'm running 750hp on a 36' Spectre cat and am wondering about the # 5 drive. Do make them new still? I thought they be lighter than the # 6 and still will run on the surface. Your thoughts.

There isn't as much total weight difference as some think between a boat setup with 6's vs 5's after adding the weight of the steering hardware. It's even closer after you add the weight of a standoff box to get the prop placement similar to the 6. Also, the drysump has less hp loss than a 5. Not knocking the 5, but it's days are numbered;) Jay (Spectre) could tell you what differences he has seen in his applications. Some boats may carry the extra weight better than others.

Thanks for the info. I may just go with XR's and speedmaster lowers.

Check these out for an alternative to 6's for the power. www.weismann.net

Re: # 5 drives vs # 6
 

what happened to the arnesons

I would not go with bravos, 750hp and a cat. You'll be changing drives like light bulbs. Heck, even people with HP500's are breaking shafts on a cat.

Running as high as they usually are on a cat, most of that drag is probably the skeg. There is a major difference in skeg area between the 2. You could cut back the skeg a little, as long as it's not a race boat (Supercat had/has a rule on skeg dimensions for the 6, not sure about the other classes).
I wonder how they get the tiebar high enough on the Weismann drive? That clevis doesn't look high enough to me. A hydraulic link tiebar maybe?

i have the same problem.... same hp's and only have bravos.
will need a #5 soon .never considered #6 cause the cost is high.
do you have any idea about the rebuilt prices of #5 drives

Re: Re: # 5 drives vs # 6
 

Arneson industries is still around.. they make a replacement drive that retro fits onto a bravo along with all the other sizes.

I would also consider the resale value and the complete setup price difference after you add steering to the 5 (not sure if any steering parts are included with the arnesons). There are good arguments for all of the above combinations. Good luck in your choice.