bigblank69
Cadet
- Joined
- Jul 22, 2011
- Messages
- 10
Ok, Thought I would share and vent my frustrations. I have a 2011 Rinker 186BR with a 4.3L MPI Alpha One with a 1.81 Gear Ratio. Boat came stock with a 14.25 x 21P Michigan Wheel Vortex XHS Prop. I was never satisfied with the performance of the stock prop, and I couldn't go more than 3/4 - 4/5th throttle without hitting over 5000 RPMS, when I got a minor ding in the prop it gave me the very excuse I needed to find the right prop... Little did I know it was going to be such a pain in the *****
As a Baseline the fastest I could get the boat with the stock prop was about 47mph at 5000 rpms, bleed a ton of speed in turns and really didn't have much grip ever.
First prop I tried was a Mercury Quicksilver QST 5 (High 5) 21p, Bought this since Rinker's optional stock prop is a High 5 and hoped it would mean something. Slapped on the new wheel AND... Not enough pitch, It would accelerate like a banshee, but topped off at 45mph @ 5000+ RPMS, back to store it went.
Next to try and Dial in pitch better I bought a Black Diamond 14x23P, actually like this prop (To a degree) it accelerated ok but had a good cruise speed. It topped at 4800 Rpms @ 50mph. Kept the Prop to keep as a spare while trying to get a stainless with better performance.
SO, I thought I had my pitch in order, now just need to dial in a prop.
Next, bought a 14x21P Quicksilver Typhoon 4 Blade (Similar to a Vensura).. Hoped that the additional blade would help in the holeshot and the 21P would would be correct because of the additional blade.. CLOSE but no Cigar! I gained Speed (52 MPH) and the holeshot was quicker, but RPMS would exceed 5000+ at full throttle.. Not a bad as the QST 5 or stock MI Wheel, but enough to get me concerned... Also there was vibration at slow speeds that was very noticeable... Back to store it went....
TODAY, just tried out a 3 Bladed PowerTech RAS3 3 blade 14.25x23P my prop shop recommended... I had hoped this would be the one to end my search for... WRONG AGAIN! This was by far the Top Speed king of the ones I has tried (53MPH) Holeshot was decent, BUT.. Now the RPMS are at 4400 so a 400 RPM drop between this and the Black Max... GREAT! Back to the drawing board... Now I have to hope my prop shop has a 21P version, and pray it doesn't add more than 400RPMs...
I also have ordered a Turning Point Express 14x21P 4 Blade and a Michigan Wheel Apollo 14x22P 4 blade to see what those can do..... Maybe one day I can find a prop that will be decent in the hold and keep me under the max RPM range...
As a Baseline the fastest I could get the boat with the stock prop was about 47mph at 5000 rpms, bleed a ton of speed in turns and really didn't have much grip ever.
First prop I tried was a Mercury Quicksilver QST 5 (High 5) 21p, Bought this since Rinker's optional stock prop is a High 5 and hoped it would mean something. Slapped on the new wheel AND... Not enough pitch, It would accelerate like a banshee, but topped off at 45mph @ 5000+ RPMS, back to store it went.
Next to try and Dial in pitch better I bought a Black Diamond 14x23P, actually like this prop (To a degree) it accelerated ok but had a good cruise speed. It topped at 4800 Rpms @ 50mph. Kept the Prop to keep as a spare while trying to get a stainless with better performance.
SO, I thought I had my pitch in order, now just need to dial in a prop.
Next, bought a 14x21P Quicksilver Typhoon 4 Blade (Similar to a Vensura).. Hoped that the additional blade would help in the holeshot and the 21P would would be correct because of the additional blade.. CLOSE but no Cigar! I gained Speed (52 MPH) and the holeshot was quicker, but RPMS would exceed 5000+ at full throttle.. Not a bad as the QST 5 or stock MI Wheel, but enough to get me concerned... Also there was vibration at slow speeds that was very noticeable... Back to store it went....
TODAY, just tried out a 3 Bladed PowerTech RAS3 3 blade 14.25x23P my prop shop recommended... I had hoped this would be the one to end my search for... WRONG AGAIN! This was by far the Top Speed king of the ones I has tried (53MPH) Holeshot was decent, BUT.. Now the RPMS are at 4400 so a 400 RPM drop between this and the Black Max... GREAT! Back to the drawing board... Now I have to hope my prop shop has a 21P version, and pray it doesn't add more than 400RPMs...
I also have ordered a Turning Point Express 14x21P 4 Blade and a Michigan Wheel Apollo 14x22P 4 blade to see what those can do..... Maybe one day I can find a prop that will be decent in the hold and keep me under the max RPM range...
