Fishski put Smarttabs on his boat (19' Stingray) and WOW! They made a huge improvement. Its turning capibility is down right scary- actually quite fun!!! I'll try to rattle his cage so he can give the details.
_________________________ 07 Starcraft 2210/225 Optimax 05 Sierra 2500HD NCLakes.net
#424678 - 07/27/0801:10 AMRe: Trim Tabs or Stingray?
[Re: ABoater]
fishntoss
Captain
Registered: 01/30/08
Posts: 145
Loc: oxnard ca
I have a Doel fin clone on my 18 ft Bayliner. I still have quite a bit of wander at idle. I'm not sure if it gets up on plane faster as it came with the boat when I got it.
I've had others tell me to go with the trim tabs. It is supposed to help with the wander and will get me up on plane faster.
MY 2cnts..
_________________________
"I think we need a bigger boat". Jaws
I have a spare 14x17 Al that I am going to try out next time out. If it works better, I'm thinking 14x17 SS 3 blade. Or should I get a 4 blade of a different pitch? I need to plane quicker and at a lower speed for wakeboarding and I need to run at varying altitudes from S.L. to 6700 feet with a 1.62 ratio alpha.
I will also look at the notch in the hull at planing speeds. Might need to be on the end of a rope yelling "hit it" to do that.
_________________________
72% of fatal boat accidents are caused by boaters that haven't taken a safe boating course.
2001 Sea Ray Sundeck 190 5.0 EFI Alpha I,Generation 2 2002 4x4 LB Lariat CC F250, 7.3PSD
#425281 - 07/29/0810:56 AMRe: Trim Tabs or Stingray?
[Re: deepv]
WaterMutt
Bilge Rat
Admiral
Registered: 01/14/04
Posts: 10235
Loc: Massachusetts
I upgraded to a four blade SS from a 3 blade AL. Quicker planing, and lower planing speeds for sure. The biggest attribute is the prop blow out in turns. It was bad with the blade unless you trimmed fully down, with the 4 blade it is relatively non-existant.
_________________________
"That's my boat..." -Forest Gump
If you do not want to spend much, try gettting a good prop shop to drill small holes at the base of each blade of a prop. It closely duplicates Merc's PVS system. The exhaust goes out thur the holes at low speeds and then the force of the exhaust inside and the pressure of the water flowing by outside, makes the exhaust flow thru the hub at speed. That "slips" the prop at low speed letting the engine get into its close to peak torque rpm quicker. Improves hole shot, not lower the speed on plane.