I would like to see the exhaust flange offered in the catalog opened up for 1 1/2" NPT which would match the manifold casting. An adapter could then be added for those who wish to continue blocking off a third of the exhaust flow cross sectional area.
Enhanced Manifold Exhaust Flange
Collapse
X
-
Could we just drill out the current one?
Originally posted by hanleyclifford View PostI would like to see the exhaust flange offered in the catalog opened up for 1 1/2" NPT which would match the manifold casting. An adapter could then be added for those who wish to continue blocking off a third of the exhaust flow cross sectional area.Joe Della Barba
Coquina
C&C 35 MK I
Maryland USA
-
-
Did you cut the gasket bigger?
I think a local machine shop might drill mine for less than the cost of a pipe tap.
Originally posted by hanleyclifford View PostThat is exactly what I did but the cost of a 1 1/2" NPT pipe tap is around $50. Maybe a plumber friend would loan you one.Joe Della Barba
Coquina
C&C 35 MK I
Maryland USA
Comment
-
-
Opinion oh boy
I don't think you would notice any differanc on a direct drive set up and seriously doubt that it would be noticeable on a hi-rpm reduction set up unless you were running a dry stack. That little engine just doesn't pump that much air even at 30HP.
As I have bragged and I'll bet my old tired A-4's performance numbers with 25' 1 1/4 pipe 1 1/2" hose will beat or meet anyones.
I'm open for attack.
Dave Neptune
Comment
-
-
Race him for pinks dude, You can take him!
So-Cal rodder meets Yankee tinker—match up of the century.
Dave probably has lake pipes running along his boot stripe.
Anyone seen my Lucky Strikes?sigpic Whiskeyjack a '68 Columbia 36 rebuilt A-4 with 2:1
"Since when is napping doing nothing?"
Comment
-
-
Ooh yeh!
That's a challenge I'd love to participate in. Although the reduction unit and put more power to the water via another 8-900 RPM's. We probably weigh about the same so it would be a good comparison side by side on the course. Unfortunately my neck is sore so I won't be able to look back to see the look on your face.
Actually mine would probably expire if I pushe it for long to the wood. How far between the bridges?
Oh yeh, Hanley will you be using my prop?
Dave Neptune So. Cal.
Comment
-
-
Yes, the v-drive is both a curse and a blessing. Those extra rpms really do make a power difference.
I did some speed trials yesterday, and on flat calm water with no wind, wide open throttle stabilized at 3100 rpm and 6.7 kts. And its a heavy boat. 32.3 ft and 12,800 lbs. Hull speed is just a hair over 7 kts, so I'm pretty satisfied with 6.7.
And, oh yes. I've got a 1 1/4" exhaust system.@(^.^)@ Ed
1977 Pearson P-323 "Dolce Vita"
with rebuilt Atomic-4
sigpic
Comment
-
-
So tru mon. All de ponies in da worl' don' mean nuttun if you don' hook up.
I hear da Boss singin in my head jus now.
...We shut `em up and then we shut `em down..sigpic Whiskeyjack a '68 Columbia 36 rebuilt A-4 with 2:1
"Since when is napping doing nothing?"
Comment
-
-
Originally posted by Kelly View PostOooooh...the trash talk! I love it! Imagine getting all excited about 10 miles per hour!!Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
Comment
-
Comment