DesertRage

iTrader: (2)

Thanks for your input Bill and everyone else that put some serious thought into this. I have contacted a few of the major power boat suppliers (Eddie Marine, IMCO, CMI, and Teague). Surprisingly enough with very mixed feelings!

DesertRage

iTrader: (2)

Ya, notice post #2 (pic of mocked up tails)....

MER Performance

sorry long day! I overlooked the mock-up statement

CB-BLR

I would definately not use those rubber seal things!

I would use standard exhaust thru hull outlets, with exhaust flappers, and have someone make up custom stainless down pipes in an exagerated S shape.

This way, you could bolt the down tubes on to the rear of the KE headers, and only have one rubber hose fitting where they meet the tails.

Nordic will make these for you if no one else will , and polish them.

Your motor looks so trick... why would you even think about doing it any other way?

Chris

CB-BLR

Here is what Nordic made for my motor, with the newer corner exhaust outlets:

Chris

DesertRage

iTrader: (2)

Thanks Chris,
It sounds like Standard tips are the only way to go. I will mod my mockup to allow for more room between the transom and use a short piece of rubber hose.

Would 1/2" gap between the tails and tips (portion the rubber hose would cover) be enough to absorb vibration and slight movement?

Your 600SCI with sport tubes looks great!

Jon

CB-BLR

1/2 inch is perfect.
I have done it with 1/4 inch clearance, and no problems after 3 seasons of boating.

I don't know about your motor, but mine is solidly mounted... hence no movement.

Chris

DesertRage

iTrader: (2)

Good! That will give me a little extra room. What is the minimum distance the rubber hose should slip over the tip and then on the tail? I am thinking just enough to get two hose clamps on each end. The clamps are 1/2" wide, so maybe 1 3/16" slip over on each side?

My motor will be mounted with billet aluminum pedestal mounts. They should be more solid then the mercruiser rubber isolated ones.

Jon

CB-BLR

You are correct... Just enough to get a couple of hose clamps on each side.

Can't wait to see a picture of your motor in the boat.

Chris

P.S. I always mount mine with anodized billet aluminum also... color matched to the other stuff on the motor and boat. If you look at the bottom center of the picture I posted, you can see the polished, under engine, motor cradle, and the red anodized spacers, and stainless bolts.