28' scarab excel, 540 merlin 640hp prop help
#1
Registered
Thread Starter
Join Date: Mar 2008
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
28' scarab excel, 540 merlin 640hp prop help
Hey guys. I have a 28' scarab excel with a 540" merlin that is putting out 640hp @5500rpm, and an XR drive. What do you think I should run with this set up? Any advice is appreciated. Also, what kind of speeds should I expect? Thanks, Matt
Last edited by slinger7101; 04-01-2008 at 03:50 PM.
#2
Offshoreonly Advertiser
Offshoreonly Advertiser
There are so many variables that it makes it tough to determine the top speed without a base line. If you have exact wet weight including all gear and fluids, I can get a very close guess. Try a 28-30 Bravo 1 propeller as a starting point.
__________________
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
#7
Currently running M2 procharger on a 540, approx 800 Hp. Currently runs 80 GPS at 5k with a 32 B1. I just picked up a 30P B1 to see if I can get the RPM's up in the power range. I ran at 78 with the 28P B1, but it ran about 75 with the 28P on same setup but a 468 BBC. It begins to get squirly over 75 MPH. I hear going with a two inch shortie and extension box straightens the ride out.
Thread
Thread Starter
Forum
Replies
Last Post
ferraristyle
General Boating Discussion
3
08-14-2006 09:42 PM