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  Will a 20" Engine Work on a 210 Ventura?

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Author Topic:   Will a 20" Engine Work on a 210 Ventura?
WhalerAce posted 03-31-2014 11:20 PM ET (US)   Profile for WhalerAce   Send Email to WhalerAce  
I am still looking for the perfect engine for our new-to-us 2001 Ventura 210, which specifies a 25" shaft engine. My question is this: will a 20" version work? I ask because it seems that advice lately has been to mount engines up a lot higher than in the past. So would a 20" engine with a four-bladed prop work, or should I just stick to a 25" and raise it a few holes?

The 210 Ventura seems to be a pretty heavy boat for its size, and high speed is not a goal -- we mainly cruise, so flying through waves is not what we do.

I ask because there are a lot of 20" HPDI Yamahas available, though I am still looking for either that low-hours 250HP OX-66 or 300HP HPDI.

Thanks in advance,

--- WhalerAce

sraab928 posted 04-01-2014 06:47 AM ET (US)     Profile for sraab928  Send Email to sraab928     
Sorry cant help with your question but did you see these for sale? 573857-yamaha-ox66-250s-super-clean-will-split-3750-each.html

WhalerAce posted 04-01-2014 02:55 PM ET (US)     Profile for WhalerAce  Send Email to WhalerAce     
No I didn't but you can bet I am going to check on it now!


--- Ace

Teak Oil posted 04-01-2014 08:33 PM ET (US)     Profile for Teak Oil  Send Email to Teak Oil     
You do not want to put a 20" engine on a Ventura, it will never perform properly
MattInSanDiego posted 04-01-2014 10:32 PM ET (US)     Profile for MattInSanDiego  Send Email to MattInSanDiego     
I agree that you don't want to put a 20 inch motor on a 25 inch transom. And watch out for HPDI's over 200 hp. They have a bad reputation for catastrophic failure.
jimh posted 04-03-2014 10:26 AM ET (US)     Profile for jimh  Send Email to jimh     
WhalerAce--With a Boston Whaler VENTURA boat, will you now be known as Ace Ventura?

Did this have anything to do with your decision to buy a Ventura?

WhalerAce posted 04-03-2014 01:15 PM ET (US)     Profile for WhalerAce  Send Email to WhalerAce     
No, but that is the same question that Gary Frutiger posed. (But I did create a new handle on the HullTruth as that when I was checking on some Yamaha OX-66s).

No, the reason for the Ventura was its seating. Amazingly, the Temptation can really only seat four people comfortably (maybe five) for all that boat. Since we have four kids to carry now (our sons and their spouse and potential spouse), the Ventura lends itself more to that kind of sociability. And besides, it really seems to be a hell-of-a-boat.

But I am still curious about the shaft length. It does seem like we are advocating mounting engines up so much higher on the transom that a "highly mounted" 25" shaft is beginning to approach the same wetted depth that a "lowly-mounted" 20" shaft would be. I was kinda hoping that Larry Goltz or Tom Clark would have jumped in by now . . .

Anyhow, need to hurry up and find an engine so that we can go on the Whaler Bimini trip. This is our 20th wedding anniversary this year, and that is how we began our married life 20 years ago -- in fact, our wedding had to be scheduled on a Wednesday so that we could make it down to Florida by Saturday for the Captain's meeting.

But AceVentura or VenturaAce -- not sure which way to go.

Teak Oil posted 04-03-2014 03:09 PM ET (US)     Profile for Teak Oil  Send Email to Teak Oil     
Ace I have my E-tec mounted all the way up on the transom right now and I can measure that distance for you when I get home. I am pretty sure it is less than five inches above the transom.

The problem is not all hulls like to run with the engine mounted that high, and by going with a 20" motor you will most likely be an inch or two too high, and have no ability to lower the motor.

You would also be hurting the resale value of your boat going with the wrong shaft length outboard

DaveS posted 04-06-2014 01:52 PM ET (US)     Profile for DaveS  Send Email to DaveS     
Just curious, would a jack plate work? Would make dialing in the perfect height much easier.
Teak Oil posted 04-06-2014 07:17 PM ET (US)     Profile for Teak Oil  Send Email to Teak Oil     
The powerhead would still be 5" lower than it should, increasing the chance of the engine getting submerged. It would also look terrible and still hurt the resale value.

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