question about exhaust

[Needforspeed]

Hey guys i am about to add thur the hull exhaust , got everything i need tips took care of y pipe . I have the 454 omc 93 i am geting ready to drill. how much should the exhaust hose run down hill from my factory riser to where it will meet the tip on the transom? tips are the factory tips with flaps. if the exhaust hose runs a little down hill will that do / will that do to make sure no water will gets in ?
:confused:

[Needforspeed]

also in the 1993 22 hull the transom has a center part that is very thick, double thick, the only way i can miss that center part is if I put the tips just a little more apart then they would if be if they came right strait off the risers only about 1/2 inch to each side.
Anyone every run it to this or see any problem with what i figure i need to do? thanks

[Greg K]

You will have to hole saw thru the thicker area of the transom as well. Don't be afraid.. I can give you the exact location for the holes for a 93 if you want, since my new exhuast tips are still not installed as of yet.

[Needforspeed]

yes if you have them i would love it thanks . water101@comcast.net
thank you so much

[Needforspeed]

ALso do you know how thick the thick part of the transom is i want to make sure the bolts for the tips will reach ?

[Greg K]

The center location of the holes for the exhaust tips are, 13-1/2 inches from the centerline, 3-1/2 inches down from the lip just below the rub rail.
The thicker area of the transom is 2 to 2-3/16 thick. A 4-1/8 inch hole saw works wonders.

http://www.donzi.net/photos/exholeloc.jpg

[Needforspeed]

you have the 454 omc right? no water will be able to get in aslong as the tips have the flapers right?