Need Help-CSR question

[rabbitears2]

I am new to this class. i have a 102 I want to put on my CSR. The transom height is 14inches. The 102 is way too deep in the water. I think the transom height was for a 302. What height should I raise the transom to so I can run the 102 with room to spare for a few shimes.Any help would be appreciated.

[Jack Stotts]

The center point of the prop shaft tail end must be 3/4 inch below the bottom of the boat for the max height. Start shimming your transom until you reach that height. Jack

[ZUL8TR]

OK If he has enough transom

[Tim Weber]

If it was set for a 302, you'll need to increase the transom by 1". Get some 1/4" sheet aluminum and sandwich the transom and cut a block to fit across the top between the aluminum. You'll be close then.

Tim

[ZUL8TR]

I am new to this class. i have a 102 I want to put on my CSR. The transom height is 14inches. The 102 is way too deep in the water. I think the transom height was for a 302. What height should I raise the transom to so I can run the 102 with room to spare for a few shimes.Any help would be appreciated.

How is that 14" measured, along the slope or vertical up from 90 degrees off the bottom. I would mount the engine on the boat and adjust the prop shaft level with the bottom, then measure how far the shaft rear center is below the bottom. Then subtract 3/4" and that is the additional height needed. Reduce that for some shims for final adjustment and add to the transom as noted above with the aluminum/ wood sandwich.

[crfabbro2F]

That would be 90 deg off bottom for that measurement

[PRO-MOTIONRACING]

If it is a 302 transom the 102 is 1 1/8 taller. I have used a wood block,a couple counter sunk 3/8 lag bolts, along with moving the aluminum sandwich plates up to make it strong.