2 motors, 1 V-drive help
 

Working on this boat …. very long story and I don’t want to taint anyone’s thoughts before they answer by going into it.
It has 2 motors that go to one V drive then to one prop. One motor sits in front of the V drive and one in back of it. Both motors have transmissions and don’t worry about motor rotation or anything else but the question. So here goes.
How would you connect the two motors to the V drive?

A,
http://img291.imageshack.us/img291/6854/60619978.jpg

B,
http://img692.imageshack.us/img692/9192/59773544.jpg

Hmm, set up one engine for reverse rotation then adapt a transfer case to take power from both engines down angle to the prop shaft?

Call PAT WEISSMANN !!!!!!!

pic A would be the way it would be done but i have never heard of it

Pic A. Do you have the original V-drive? I assume that you don't. Depending on the drive you use, you would need to rig a straight thru shaft on the top. Basically just add another flange on the opposite side of the case. (easier said than done) The transmissions should allow you to engage / disengage each engine separately, so I think it could be a solid coupling.

Are you going to use crash boxes or standard trannys? How would regular transmissions react to differences in RPM? I would think trying to sync both engines through a borg or similar could create a lot of heat. Crash boxes would effectively lock both engines together when in gear.

I know your boat has a very unique setup, and I can only imagine trying to dock a single with two crash boxes to deal with! :picard1:

Does any of this make sense???

start over (one engine two props) and two trannys

pic A is the only way it will work if there is any over drive in the v drive

Have the original Casale 1000 (only about 40 made), 1.09 to 1. A B/W Velvet drive, 1 to 1 on each motor.
As I said I don't want to get into all the logistics until I get a consensus on how folks would do it if it was theirs. I will be more then very happy to discuss it all then.

What boat is this in? I would realy like to see some pics.

I like the odd ball projects.

http://www.supernova19.com/nova_24_race_boat_home.htm

nice project , have you called casale and talked to them , i used to talk to Andy out there but it has been years and he was older so i am not sure if he is still around.

Thanks
The V drive it's self is not an issue. How to install it is.:drink:

they may can help with that , i have put them in normal v-drive set ups but not anything like this

I would install it as setup A.

Setup A has a more equal balance of power going to the drive/prop. Whenever you have a multi-motor, single drive configuration, IMO the best thing you can do is rule out variables and try to keep things as balanced as possible.

You say you have the original Casale 1000. How is it set up?
If the v-drive is not 1:1 ratio then you have to go with figure A. 1 LH and 1 RH rotation engine. If it is 1:1 you could go either way however with figure B you could use engines of the same rotation. IMO figure A would be stronger with the 2 engines being splined together turning the shaft through the gear in the same direction. Figure B I would think jerking back and forth on the teeth would result in a broken tooth especially if a engine hic-uped.

Andy and Drew have helped out enough already.
This question is for me and just would like to hear what everyone else thinks.

Very cool. Since the drive is not a 1:1, the only feasible option is A. Otherwise the RPM relationship between the engines would be off. Keep us posted on the final setup.

I have enjoyed following your project on your web page. :drink:

Hey PJ
I have the original V Drive and know exactly how it was set up but......... Getting ready to put it together but running a theory by everyone to see if my theory is insane or not.

This will F_ with you all.

http://www.supernova19.com/26646650.jpg
This boat's set up is picture B.
How many times did this boat win the championship?

With a over drive gear box?

I geuss that would keep the gear slap down as one engine would be pushing or geting pulled ,how ever you want to look at it.

Very cool project thanks for sharing.

ok i would thank the ? would be is the v-drive a 1to 1 or is it over drive . If overdriven i would think you would need to go with example A to keep the motors balanced , but what do i know:eek:

If the original V drive was setup as in exhibit "B", and was a 1.03 ratio vs the new gears which are 1.09, wouldn't the minor difference originally be pretty much mute?