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Think I found the vent your canvas shop used: https://www.amazon.com/Boat-Cover-Vent-Support-Systems/dp/B07H7TVY9Q EZ-Xtend product code H1091.

Stingrayaxe, THANKS for taking the time to forward me all your info! Much appreciated.

Stingrayaxe, thanks for your reply- A sewn-in rubber vent is probably far better, and $40 each sounds like a good deal. If your cover/vents are accessible and you can find a a mfr/product # on the vents I'd appreciate that very much. With inflation, I assume a quote for the same work (if I can...

How do you support your boat cover? I keep my 1994 180BR on a lift, with a Sharkskin cover held on by webbing to the lift and bow/stern eyes. For awhile, I used a "support system" pole topped with plastic triangle with webbing running off it, but got tired of untangling and wrestling with that...

Conclusion for anyone seeking info from this thread: Marina recommended Quicksilver Nemesis 14X19, which they let me try out. Definitely an improved holeshot and less bow rise vs the Michigan Vortex 14X20. Hit 4,600RPM at 42MPH (just shy of WOT). Lost approx 5MPH, which is no concern. Bought...

Google could be lying, but extensive search did not find an aluminum 4-blade 14X18 prop. Would expect Google to find one, if they still exist(?)

OEM prop = 3-blade 14X19. Based on my limited understanding, going to a 4-blade should drop pitch by 1 (14X18). Again, based on limited understanding, assume that the less-than-expected holeshot improvement by the installed 4-blade is due to the pitch was raised (14X20) vs lowered from the 14X19...

Thanks - You successfully dropped 2" on pitch while maintaining your OEM prop diameter? That makes it tempting to go from my 14X19 to 14X17, which appears to be a more common size than 14X18. Realize "results may vary" but that may still be a reasonably conservative option for Experiment Step 1...

Thanks Stingrayaxe- Regarding prop/cavitation plate clearance- Is there a minimum clearance, or OK as long as the prop clears the cavitation plate? Can't ck the measurement since boat not nearby, but an additional 1/4" (by raising prop diameter 1/2") should clear the cavitation plate. I like...

Can anyone provide the windshield frame thickness for a 1994 180BR? Saw a good sale on a ski mirror that mounts on windshield frame. Boat is >2HR away, so can't check the measurement. The mirror clamp fits max 1.25". THANKS! Disregard: rolled the dice and ordered the mirror to avoid missing sale

Closest match to a 14X18 that I've found so far: Michigan Wheel Vortex 992203 14-1/2" X 18" 4-Blade RH Propeller. No idea if the extra 1/2" diameter is a problem(?) Not ready to give up, but the 14X18 is apparently an "odd size".

Thanks for your perspective on the 14X18 4-blade being "safe" -I'm leaning toward ordering one to have a new prop ready to install when I next run the boat, vs running the chipped prop for RPM data. Spent some time googling "14X18 4-blade aluminum prop" with no luck -apparently an odd size...

Thanks Lazy Daze- Other than to get a skier out of the water, my boat almost never sees WOT -don't know how much that may help minimize potential issues exceeding max RPM. Yes, I did get the impression that changing props is fairly common, with so many general recommendations (ie: drop pitch...

Lazy Daze, thanks for the education. If that's the way it is, then fine -I understand it's 100% my responsibility. Still, I remain surprised that mfr's don't provide an optional "ski" prop recommendation since owners commonly need one. I'm sure you gave the right reasons, but regardless the...

Stingrayaxe, thanks for your feedback. From my post #10: May be a couple wks before I have an opportunity to run the boat to provide the RPM data. Remain surprised that apparently mfr's don't provide prop recommendations for boats they manufacture. ie: For the 1994 180BR I/O 5.0L (190HP)...

Thanks for the Merc/Quicksilver prop recommendations. My previous posted data from 1995 Sea Ray prop matrix: 180BR I/O 5.0L (190HP) Alpha One 1.65:1 ratio 14X19 prop 4,600RPM max The QS Nemesis is in my price range, but requires going to a 17 pitch (2 steps down from the OEM 3-blade 14X19)...

THX for your recommendation- The Hi 5 is apparently "the best" @$700. This boat is run <20hr/yr. Hope to get a 14X18 4-blade that improves perfomance for far less $!

THANKS Will shop for a 14X18 4-blade prop. Any recommendations for brand/model or online suppliers appreciated!

Thanks Lazy Daze- From 1995 prop matrix: 180BR I/O 5.0L (190HP) Alpha One 1.65:1 ratio 14X19 prop 4,600RPM max A J14.25 X 21P prop was on the boat when bought, which I ran until the 4 blade 14X20 (992204) installed in 2012. The apparently original 48-78129-19 prop also...

Lazy Daze- Engine is healthy -boat has been maintained (only 420hrs on it). When I bought it in 2000, the original 48-78120-19 3-blade prop was the spare, a J14.25 X 21P was installed, and ran that until switched to the 4 blade 14X20 Michigan Wheel Vortex 8 years ago. Reviewed the recommended...