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-   -   Donzi - Blackhawk - IMCO (https://www.offshoreonly.com/forums/general-q/380889-donzi-blackhawk-imco.html)

sandslot 10-22-2023 04:42 PM

Donzi - Blackhawk - IMCO
 
I have been trying to suit up my Blackhawk drive with IMCO hydraulic dual rams. I have a single-engine 22 Blackhawk that needs it, but I cannot determine the best ram mounting locations (drive and transom). I have seen many other 22's, but no 22 Blackhawk boats and certainly none that have the full 50 degrees of stock steering (I can get a setup for 40-44 degrees, but the boat is hard enough to maneuver without that reduction!). Mine has Mercury racing 28 tabs and the transom brackets seem to be at the root of the problem. I thought about fabricating a bridge to mount the rams to, but I wanted to see if anyone has done this before. Any comments would be appreciated

scarabman 10-23-2023 10:38 AM

Have you talked to Imco? Ram length, bracketry, etc.., all make a difference on how you can set things up.

sandslot 10-28-2023 11:16 AM

Blackhawk rams
 
Yes, I have been working with IMCO on this and are getting close to a solution. Problem seems to be the rarity and low volume of these drives.

SkiDoc 11-04-2023 05:50 AM

I did this on a 22 Daytona Blackhawk several years ago. It was definitely a head scratcher for a non professional like me but it turned out great and gave me so much better control of the boat plus a lot more strength in the gimble.
I can’t remember the length of the rams. The only manufacturer I could find for the steering Ram plate for the Blackhawk was WPM. Imco really only has a couple lengths of rams they make. Maybe you can tell what length I used from the picture? I never measured the degree of turn but it was always plenty. I just used trial, error and prayer to get geometry correct.
https://cimg4.ibsrv.net/gimg/www.off...2078d4e7f.jpeg
https://cimg6.ibsrv.net/gimg/www.off...1f372c488.jpeg
https://cimg7.ibsrv.net/gimg/www.off...b0bd11125.jpeg
https://cimg8.ibsrv.net/gimg/www.off...69a68f680.jpeg
https://cimg9.ibsrv.net/gimg/www.off...a6ef25106.jpeg
https://cimg0.ibsrv.net/gimg/www.off...cc0250928.jpeg

IGetWet 11-04-2023 06:04 AM

It would add 7” of setback, but doesn’t the Blackhawk bolt up to a bravo transom asm? So then a ITS would work… no more holes in boat

Could always just sell the boat to me as well… 😉

offshoredrillin 11-04-2023 07:26 AM


Originally Posted by sandslot (Post 4883789)
Yes, I have been working with IMCO on this and are getting close to a solution. Problem seems to be the rarity and low volume of these drives.

i did mine on an ITS box, drive and one set of props are still for sale
https://cimg6.ibsrv.net/gimg/www.off...f6a2493c9c.jpg
https://cimg7.ibsrv.net/gimg/www.off...4885dde96f.jpg

sandslot 03-06-2024 06:52 AM

blackhawk rams
 

Originally Posted by SkiDoc (Post 4884272)
I did this on a 22 Daytona Blackhawk several years ago. It was definitely a head scratcher for a non professional like me but it turned out great and gave me so much better control of the boat plus a lot more strength in the gimble.
I can’t remember the length of the rams. The only manufacturer I could find for the steering Ram plate for the Blackhawk was WPM. Imco really only has a couple lengths of rams they make. Maybe you can tell what length I used from the picture? I never measured the degree of turn but it was always plenty. I just used trial, error and prayer to get geometry correct.
https://cimg4.ibsrv.net/gimg/www.off...2078d4e7f.jpeg
https://cimg6.ibsrv.net/gimg/www.off...1f372c488.jpeg
https://cimg7.ibsrv.net/gimg/www.off...b0bd11125.jpeg
https://cimg8.ibsrv.net/gimg/www.off...69a68f680.jpeg
https://cimg9.ibsrv.net/gimg/www.off...a6ef25106.jpeg
https://cimg0.ibsrv.net/gimg/www.off...cc0250928.jpeg

Thank you for the information, very helpful.

What brand of cooler is on the boat and is it effective?


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