The engine center line distance would not have to change so if the engines are on a 34.5" or 35" or?? that would not change.

The vertical crankshaft centerline distance in relation to the boats bottom might change depending upon the transom angle as well as the x dimension of the drive units. The crankshaft center line from the bottom of the hull would be roughly 13.5" to 14" depending upon the transom angle. The higher the angle the higher this number would be.

Now you for example raised your X by raising your engines in the process so I would say what ever you had raised the engines would have to be lowered back down.

Addressing the larger drop box ASD8 drive units whereby one can mount them at an angle and thus change the engine crankshaft center line in relation to the propeller centerline. These would be a major setup as the engines have to be mounted farther forward in the boat by some 18", the vertical height will have to change in the upward direction and the cost is substantially higher as is the weight.

Thanks Rik. My crankshaft centerline was 14 1/4", I raised it to 16 1/2". The older 36' Apache's that were rigged for Mirage Plus props had the 14" X's and the newer ones rigged for Bravo I props were rigged at the 16" X. I raised my X on the advice of the builder and had his support through out the entire process. I didn't go into uncharted territory with the prop height and gained 4 mph for under $2K.

Thanks for answering my question in detail, hopefully it helps some of the others thinking about installing your product. I'm looking forward to seeing some results if/when someone decides to do it.

Sounds like we are pretty close then to what the Apache's were setup with..

I think around 97' they made the X change so the older boats should be ok but the 97 and newer would need to have engines lowered. A simple measurement for the other Apache owners could help them along.

As far as transom angle goes, don't quote me on this but I thihnk it's a standard 12* transom. I can confirm that with the builder.

The "typical" transom angle on the older boats is 12 to 13 degrees.

Rik, the main difference on the bottom between a 38' Cig, 41' Apache and 36' Apache is for the most part the rocker. We know the 41' Apache came from the 38' Cig but the 36' Apache was made from a damned 41'. Since it was a simple damning of the mold the bottom was flat and had to be worked/faired so the appropriate rocker could be put back in.

I think a 36' Apache is closer to a Cig. Cafe Racer, which is what it was designed to compete with. What kind of results have you seen on Cafe's?

I have a 36' Cig with Arnesons on it.. Has a great running attitude the guy says...