Fast Daycruisers

[Highlimit9000]

What are some good set-ups to make these Cadillac's Move? HP, Gear, Prop, Hull?

[dossangers]

General electric J 57 with afterburner!!!

[MikeF]

dossangers:
General electric J 57 with afterburner!!!That "jet" would make it move! :D

[Bad Meds]

Hey Corleone,I was curious how much you might want for the thru trans. set-up? I have no boat parts to trade :( Let me know :)
Thanks, Mike

[Sangster]

Bad Meds:
Hey Corleone,I was curious how much you might want for the thru trans. set-up? I have no boat parts to trade :( Let me know :)
Thanks, MikeMike, are you looking for BBC thru transom exhaust..??

[Bad Meds]

Yep! For the beater boat. It's to loud for as slow as it is.You know, either loud and fast or slow and quiet.

[Highlimit9000]

Bad Meds, I sent you a private message on those Exhaust manifolds...Look under my profile...John

[schiada96]

big turbo motor, 45's in the v-drive and a good prop

[VD CRUISER]

Corleone, Seems like its hard to get a answer to your original. I would like to see what setups some of the fast cruisers from the west coast have. We don't have much to compare to here on the east coast. I started with a 21' Howard with a 9deg shaft with the strut barrel 17" from the transom and about 525 hp and a turbo 400. It ran about 80 mph and rode like a Jersey Skif. I added a blower and got into the low 90's but it was a handful. Added more power, 547 ci, and it was lifting the transom and bow steering. Probably lucky for me, a prop blade came off and jerked the strut nearly off. At that point I decided to make some changes, so I talked to a few people and decided to go with a 7.5 deg strut with the barrel 23.5 " from the transom and closer to the bottom. This moved the V-drive 13" forward. This is probably not the ideal setup but after adding an intercooler and Lightning headers and with 11 lbs boost and a 2 blade 11 3/4 x 16 prop with 48% gears the thing has gone 109 mph, and handles pretty good at that speed. At one point I had been told you couldn't stop these boats from chine walking. This thing is fun now.

[78DiMarco]

C17:
I have 1.29 gears and a 3 blade 12/14 prop, I've had it around 80 on GPS with out pushing too hard. Last week at Parker I aired it out a bit more pushing it against the rev limiter at 6K and pulling about 14 pounds of boost. My guess is that I was in the upper 80's as I didn't have the GPS with me. It was nice!
I plan on changing the prop to a 12/15 and going to 1.37 gears. This should give me a little better top end and a lower cruising RPM.
Thanks for the into to Walt.
BG