Belt life is terrible. The outside edges have a longer path than center,
results in the center not being properly tensioned. You might be able to
run the setup with a much reduced HP rating but I doubt you would find
it acceptable.

Dixon wrote:
I have seen semi-high horse power aplications of timing belts, even a 350
v-8 chev/harley. My question is, has anyone ever seen a timing belt, say 1
1/4" wide, three hundred h.p. that uses a 90 degree twist in drive and
driven pulleys? Say drive is vert. and driven is horizontal.

Dixon

"RoyJ" wrote in message
...
Belt life is terrible. The outside edges have a longer path than center,
results in the center not being properly tensioned. You might be able to
run the setup with a much reduced HP rating but I doubt you would find it
acceptable.

Dixon wrote:
I have seen semi-high horse power aplications of timing belts, even a 350
v-8 chev/harley. My question is, has anyone ever seen a timing belt, say
1 1/4" wide, three hundred h.p. that uses a 90 degree twist in drive and
driven pulleys? Say drive is vert. and driven is horizontal.

Dixon

Monday I'll try to find a belt manufacturer tech person. The project I'm
considering is a 300 hp V-6 merc outboard in a sea doo, driven by propellors
instead of jet drive. Keeping the motor vertical as designed by mercury
eliminates a lot of problems. If you turn a water cooled motor in any other
direction, you have to deal with venting areas of trapped air in the cooling
system. There were even some three cyl. merc. outboards that were burning
the top cyl. until a small vent hole was put in on the very top of the water
jacket to get rid of the trapped air pocket. The water would circulate fine,
but the air would have no way out, creating a hot spot.With fuel inj. any
position works ok in that area.
Dixon

Dixon wrote:
"RoyJ" wrote in message
...
Belt life is terrible. The outside edges have a longer path than center,
results in the center not being properly tensioned. You might be able to
run the setup with a much reduced HP rating but I doubt you would find it
acceptable.

Dixon wrote:
I have seen semi-high horse power aplications of timing belts, even a 350
v-8 chev/harley. My question is, has anyone ever seen a timing belt, say
1 1/4" wide, three hundred h.p. that uses a 90 degree twist in drive and
driven pulleys? Say drive is vert. and driven is horizontal.

Dixon

Monday I'll try to find a belt manufacturer tech person. The project I'm
considering is a 300 hp V-6 merc outboard in a sea doo, driven by propellors
instead of jet drive. Keeping the motor vertical as designed by mercury
eliminates a lot of problems. If you turn a water cooled motor in any other
direction, you have to deal with venting areas of trapped air in the cooling
system. There were even some three cyl. merc. outboards that were burning
the top cyl. until a small vent hole was put in on the very top of the water
jacket to get rid of the trapped air pocket. The water would circulate fine,
but the air would have no way out, creating a hot spot.With fuel inj. any
position works ok in that area.
Dixon


I'll have the shore-based artillery ready when you come this way... /mark

Mark F wrote:

I'll have the shore-based artillery ready when you come this way... /mark


At least you'll get lots of shots off before they get out of range.
Lot's of happy noise covering up the sonic crack of the near misses.

Maybe seed the area with lengths of camo floating rope. Let em walk back.

Cheers
Trevor Jones

"Mark F" wrote in message
news:JAn1j.21618$PE.2768@pd7urf1no...
Dixon wrote:

Monday I'll try to find a belt manufacturer tech person. The project I'm
considering is a 300 hp V-6 merc outboard in a sea doo

I'll have the shore-based artillery ready when you come this way... /mark

Make sure the piranhas are hungry...

-Carl
--
The future isn't what it used to be.

"Carl Byrns" wrote in message
news:Z2H1j.6022$XT.578@trnddc01...

"Mark F" wrote in message
The project I'm
considering is a 300 hp V-6 merc outboard in a sea doo


I'll have the shore-based artillery ready when you come this way... /mark


Make sure the piranhas are hungry...

-Carl

Don't stereotpye me with the idiots that make all that racket on your lake
visits or fishing trips on jet-skis. This will be a sanctioned race mach.
for drag racing. I currently have a V-6 Mercury outboard hydroplane that
runs 140 mph in eight seconds.
Dixon