Propeller selection info and speeds

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liquid
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Re: Propeller selection info and speeds

Post by liquid » Thu May 26, 2016 11:51 pm

It seems to me that in 2016 trying several props and hoping your local marina will work with you is a subpar system.

My local Cobalt dealer/marina are amazing - I think it has a lot to do with local clientele understanding what they're paying for and the marina understanding exceptional service is paramount.

That being said it seems logical that 2-3 prop setups for each boat/engine configuration should be pretty standard by a knowledgable dealer... Amiright?
2002 190
5.0L Volvo Penta GL

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Re: Propeller selection info and speeds

Post by Big Block Power » Fri May 27, 2016 7:24 am

Sorry that should have been a 19 pitch stainless not a 29. Crap that would be funny watching you try to spin that.lol sorry. I think
b blades have a prop program you could check out.
Yes the dealer should know but we try so many different props ourselves it did help to hear what we are really having good luck with. Last year I brought a rev 4 to the prop repair shop and he is like wow I don't see this prop very often. I'll tell you the merc guys on another forum swear by it and so do I. Every boat and every prop is do so different even if they are the same make and model and pitch.No two are the same.
2003 Cobalt 220 8.1gxi
Neenah Wi

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Re: Propeller selection info and speeds

Post by liquid » Thu Jun 02, 2016 9:16 pm

Welp, took a nice chunk out of the prop (pulling onto the trailer i think) - so looks like I'm getting that new prop sooner than I thought!

Noticed going through my checklist launching on Memorial Day. She still drove fine but now I have an excuse!

4 or 5 blade? pitch for 5.0 GL?

Love to hear all suggestions.
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jhnmdahl
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Re: Propeller selection info and speeds

Post by jhnmdahl » Thu Jun 02, 2016 9:27 pm

liquid wrote:Welp, took a nice chunk out of the prop (pulling onto the trailer i think) - so looks like I'm getting that new prop sooner than I thought!

Noticed going through my checklist launching on Memorial Day. She still drove fine but now I have an excuse!

4 or 5 blade? pitch for 5.0 GL?

Love to hear all suggestions.
Liquid, I've had good luck with Prop MD in Eden Prairie, MN, but I know there are many other places that do good work fixing dinged up props as well. They welded some metal on and reshaped my stainless steel Volvo duo props looking like new for about $200, instead of buying a new pair for $1200-1600.
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Re: Propeller selection info and speeds

Post by Big Block Power » Fri Jun 03, 2016 6:28 am

I wish I knew Volvo props better. I loved the high five. Small prop held the water great, great hole shot and could spin some rpms with it. I don't know if you could spin a rev 4 those are crazy good props all around. I am sure you can buy a new aluminum or a great shape used one for right around a$100 so not sure I would waste my time fixing that one. I bought common props I knew I could resell if I didn't like it. That's how I found the ones I looked. 19-21 pitch it's a easy resell so just have to find one at a good price. I used eBay and cl mostly
I just posted my f8 dp on eBay for $500 so I could move up to Hill Marine 4 blades.
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Neenah Wi

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Re: Propeller selection info and speeds

Post by liquid » Sun Jun 05, 2016 10:40 pm

IMAG3248.jpg
IMAG3248.jpg (761.29 KiB) Viewed 72 times
Here's my chunk. Still runs fine for my purposes but I'm leaving good work in the locker room...
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Re: Propeller selection info and speeds

Post by Big Block Power » Mon Jun 06, 2016 6:32 am

I wouldn't run that too much. Throws everything off balance. There's got to be numbers on it somewhere that says what pitch and diameter it is.
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Neenah Wi

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Re: Propeller selection info and speeds

Post by liquid » Wed Jun 08, 2016 3:20 pm

I got this trip this week! Think I can do damage to the drive or the shaft with a little chunk like this? I don't feel any weird vibration but i certainly don't want to do unnecessary damage.
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Re: Propeller selection info and speeds

Post by Big Block Power » Wed Jun 08, 2016 4:57 pm

I personally wouldn't. When do you leave. It's Wednesday you could get a prop shipped to you by Friday? By a spare aluminum for a $100 and put it on till you get a stainless. To bad your not from around here. Props are within a 30 minute drive. Look on cl. Someone will have one. I wish I had a crystal ball to answer that question but I don't just giving you my opinion. Did you or can you pull it off quick and see what pitch it is? If your happy with it you can try the same pitch in a stainless and you should gain a better hole shot and some speed. That's if you stay with a three blade. Yes every prop is different though. Four blade I would prob drop a pitch.
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Neenah Wi

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Re: Propeller selection info and speeds

Post by liquid » Wed Jun 08, 2016 6:12 pm

It's a 14 1/2 x 21. My dealer has one in stock (aluminum). $200. RH

Hate this. Leave Saturday morning. Either get the one from the dealer and overpay or search around for one for cheaper.

My whole point was to find a SS that will improve the hole shot and that I had time to do the research. Now i have to make a decision ASAP and all options are annoying.
2002 190
5.0L Volvo Penta GL

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