what is the WOT on a 1993 four winns 195 sundowner

[puke87]

what is the WOT on a 1993 four winns 195 sundowner with a 5.0 cobra HO motor. I am running 4000 to 4200 at around 43 to 44 mph with me in the boat. I am running a 19 pitch viper prop.

 

[Philster]

Re: what is the WOT on a 1993 four winns 195 sundowner

You're low.

I'd think 4600 is the minimum and 5000 is around the maximum. Someone might have the exact numbers, but 4200 is low.

You have to certify the hull is clean and the motor is up to snuff. But, yeah, you're low.

 

[JustJason]

Re: what is the WOT on a 1993 four winns 195 sundowner

42-4600 is pretty standard for a 5.0 motor. 5000 would be pushing it.

 

[Philster]

Re: what is the WOT on a 1993 four winns 195 sundowner

Just you in the boat?? Well, I'd want to get 4500 to 4600 RPMs out of her. I keep forgetting the older V8's didn't exactly breath well enough to scream up to 5k, but 4000-4200 is dragging it's as$ with one guy in the boat.

Figure with a load of more than one person that the peak of 4600 will drop a little. Dirty hull, tired or poorly tuned engine... or one prop pitch too high right now.

 

[6meter]

Re: what is the WOT on a 1993 four winns 195 sundowner

Might be a good idea to verify your RPM'swith another tach. No need to be chasing a problem that might not be there.

 

[JustJason]

Re: what is the WOT on a 1993 four winns 195 sundowner

Hey philster, what was the final verdict on your 502?

 

[Philster]

Re: what is the WOT on a 1993 four winns 195 sundowner

I'm hauling her to a local, well-respected, high-performance engine builder tomorrow morning that I know and have dealt with before. I live in DE, the boat is in North Wildwood, NJ and problems arose when I was in VA for a week with the boat... so, it has been a total riot to get situated as to when I could get it and where I could take it.

I've was laid up with a bad back and work travel for two weeks, and I am getting her the he!l out of the marina/boatel she is in at 8am sharp tomorrow (two hour ride from home). I asked them to do a leakdown test when I was away, and all they had were %'s for each cylinder; it was done on a cold engine and no one could report where leakage was (valves, rings, etc)! They are nothing but parts hangers -- Forget diagnostics or machine work.

All they want to do is sell me a reman long block, which you can't very well find anyway. I went from them wanting to remove the head to me wondering about the overall health of the engine to them calling about longblocks!

I should have been like every other knuckle head and just said, "Sure, tear her down and see where the leak is" and then just replaced the head or gasket, or whatever. I'd like to know if replacing parts even makes sense at this point!

I have a cracked head, blown head gasket or a serious freakin' problem with the new manis/risers. That problem allowed salt water to intrude.

So, off to a real shop with real gearheads and engine builders that I know and we will do a real leakdown test and make a real conclusion.

I'm sure I will wind up with more HP somehow!

 

[puke87]

Re: what is the WOT on a 1993 four winns 195 sundowner

i just put a new rpm gauge in it. i was running the same rpms at 38 miles per hour with the old prop which was chewed up pretty bad. it came stock with a 19 pitch. from what i have found it is supposed to run 41 miles per hour at wide open throttle. i have heard that the new props are higher performance. i will probably take the prop to a prop shop and have it bent to a 17 pitch. that should get my rpms up, shouldn't it. if i do that how much will that effect my top end?

 

[JustJason]

Re: what is the WOT on a 1993 four winns 195 sundowner

I'm curious to know what they find. If you can find your original post update it when you can and keep us all posted.