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-   -   Blackhawk drives. Rooster Tail? (https://www.offshoreonly.com/forums/drives-lower-units/175059-blackhawk-drives-rooster-tail.html)

OshkoshThunder 01-21-2008 12:55 AM

A P-29 throws a nice roost
 
3 Attachment(s)
Nova26,

My P-29 at the Oshkosh Thunder Poker Run

nova26 07-02-2008 08:38 PM

Mark is that exaggerate trim running down the lake to make the big roster tail? Or is that just trimmed properly to run hard? Just curious.

Dan

JasonSmith 07-03-2008 10:09 AM

I always thought the P29's were cool looking boats.
That is all, just thought I'd throw that out there.

OshkoshThunder 07-03-2008 11:49 PM

Black Hawks are Surface Drives
 
Dan,

The Black Hawks you see in the pictures I posted are at about a half a click above straight trim on your Livorsi guage. Since they are surface drives, they send a rooster similar to a number six, but not the same volume. Put it this way, I did not loose any speed because the drives were out too far....

OshkoshThunder 07-03-2008 11:52 PM

Dan,

In the middle of setting up a 28 Talon with 600 HP and a BlackHawk. Will send some pics of that when done and running. Should be in the next week or so...

OshkoshThunder 07-03-2008 11:54 PM

Jason,

There are a few 29 Scarabs out there you can set up with Black Hawks on them. Come on - trade that Baja in for a Scarab. :-)

JasonSmith 07-04-2008 08:04 AM


Originally Posted by OshkoshThunder (Post 2612368)
Jason,

There are a few 29 Scarabs out there you can set up with Black Hawks on them. Come on - trade that Baja in for a Scarab. :-)

Ummmmmm, no!

nova26 07-04-2008 01:59 PM


Originally Posted by OshkoshThunder (Post 2612367)
Dan,

In the middle of setting up a 28 Talon with 600 HP and a BlackHawk. Will send some pics of that when done and running. Should be in the next week or so...

Be watch n! Thanks Mark
Dan

MikeyFIN 07-14-2008 04:40 AM


Originally Posted by Airpacker (Post 2368831)
When I first rigged it, I never gave much thought to the fact that factory, they had the exhaust routed thru the drive to airate the props. I blew a vertical shaft in two trying to get on plane. Repaired the drive, designed and fabbed an airation system for the props and have since pounded 160hrs onto the drive without a failure :)

Building a bigger motor this winter. Will have the drive freshened and we'll see what it can take next summer.

PS, My daytona with a 500efi averaged 30 hrs per Bravo before the switch to the bh drive.


Any close up pics of your venting of the props ?

MikeyFIN 07-14-2008 04:41 AM


Originally Posted by OshkoshThunder (Post 2612367)
Dan,

In the middle of setting up a 28 Talon with 600 HP and a BlackHawk. Will send some pics of that when done and running. Should be in the next week or so...

Did you take the pics too ?:party-smiley-004:


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