MDonziM

Just eyeballing cig92's transom I would guess my X is 1 1/2" higher. Mine is as high as possible... I could not get on plane with 3blade props turning out. The reason I asked about what motors you have is because the center on center measurement might affect the x-dim computation. My c on c is 33 1/2"

Mario L.

Center to Center Dimension

Marshalls boat is at 33 1/2"
My old Volvo boat is at 29"

If you are raising your X and rebuilding your transom, change your X dimension if your Volvo boat is close to 29".

I did not spread my c to c, and this created a lot of difficulties with exhaust system upgrades, along with a large expense.

Kalaazar

-I put a new Transom into "Side Winder" and set the new C/L at 31". I would willingly give you the X dimension, but as I have not run the boat yet I would not want to mislead you.
Unless of course your looking to take a gamble, however you will see from my postings the engines now come out through the engine hatch.

Kalaazar

27 MAGNUM

I am at 33" C/L, I found that to be dead center for my sbc cradle mounts and it seems to be a standard... sbc @ 33" and BBC @ 36"

27sport

I will have to go double check mine at the shop, but I think it is 33" on center.

Looks like I will be doing 16.5" to 17" based on all the info, hey if I get it wrong thatrs what shorties or spacers are for ....

Thanks to all that chimed in , will post pictures of the new transom when I get it finished.


Paul

Jmemoli

I had twin 500 s , converted my mds drives to bravo 1 . With the x at 16.5 " , I got up on plane with 25 3 blade mirage plus . Spun those bad boys to 5900 rpm . Getting on plane was no problem. Centerline was 33".

27sport

Well, turns out my drives were currently 30" center to center. Not exactly sure what to do here now, do I still go w 16.5 x at that spacing? We are getting close to decision time transom is filled and glassed...

Paul

h2oboater

Did you have Roger Munn's sport ? Not many have had MDS drives.

Jmemoli

I believe it was Gary munds boat , an early partner of Roger munn.
It was a red sport , purchased from Kurtz marine .

Jmemoli

Here are some pics from 2001 .
I stripped the boat and sold it to Giovanni Theodoli at Magnum .
I think he took a mold off of it .