Stiletto "X" Dim
#1
Gold Member
Gold Member
Thread Starter
Join Date: Jan 2007
Location: Tulsa, OK
Posts: 1,039
Likes: 0
Received 0 Likes
on
0 Posts
Stiletto "X" Dim
I had new power built this year and went up almost 30% in HP and only gained 3 miles per hour, the boat originaly had 500HP's with Bravo 1's, Im wondering if my drives are too deep for the increased speed, it seems to hit a wall at 82GPS, doing some research here, Current set up is Dyno 620hp, 1:50 XR's, no Boxes, Std lowers.
#2
Gold Member
Gold Member
I had new power built this year and went up almost 30% in HP and only gained 3 miles per hour, the boat originaly had 500HP's with Bravo 1's, Im wondering if my drives are too deep for the increased speed, it seems to hit a wall at 82GPS, doing some research here, Current set up is Dyno 620hp, 1:50 XR's, no Boxes, Std lowers.
As I added power I changed to 1.36 gears, kept the 30 props and the speed went up as I expected
I ran:
82mph/500hp
114mph/840hp (once)
103-107mph/750hp
95-100mph/650hp
#4
Gold Member
Gold Member
Standard Bravo-1 lower units, before the days of the XR. We obviously did major internal mods to keep them alive, Imco bi-directional internals, Dick Simon Gold Tip prop shafts, after market top cap, drilled out tower and installed stainless steel versions. We gutted the boxes and used the really long Imco torsional shafts.
#8
Gold Member
Gold Member
Thread Starter
Join Date: Jan 2007
Location: Tulsa, OK
Posts: 1,039
Likes: 0
Received 0 Likes
on
0 Posts
#10
Gold Member
Gold Member
Thread Starter
Join Date: Jan 2007
Location: Tulsa, OK
Posts: 1,039
Likes: 0
Received 0 Likes
on
0 Posts
I'm spinning 5 blade 29 Hydros at 5500, seeing 86-88, and yes, very weight sensitive, I think boxes are the way to go on these Stilettos.