Formula responded and set me what is used. The 310 OB uses steer by wire so it's different then what I'm looking at.
The steer by wire and the hydraulic/electric steering, both use the same steering cylinders, just control is different. I was hoping Formula did it the same why but not so lucky
I have twin 250's and 2 steer cylinders. According to the manual 2 cylinders are needed for 350hp and up, so I'm over kill. Wouldn't be so bad if Chap installed a 50cc helm but it's looking more like they used a 40cc helm.
Single cylinder and 40cc helm gives 4 turns lock to lock (LTL). Two cylinders and 50cc helm gives 6.5 turns LTL. I'm getting 8 turns so my guess is they installed a 40cc helm. I'm thinking about removing one of the steer cylinders