twin engines on 23 center console
 

Is anyone running twins over 200 hp on a 23 center console. My mechanic is trying to convince me to run 200's instead of 225's or 250's because of the weight factor.

Re: twin engines on 23 center console
 

Most 200's are from the same block of the 225 and 250's. The weight is the same for all 3 in the same length.

Re: twin engines on 23 center console
 

The weights are the same for the Yamaha vmax line engines according to the yamaha web site, but the 200 hpdi is 466 pounds and the 250 hpdi is 540 pounds.

Re: twin engines on 23 center console
 

In the HPDI series, Yam uses a 2.6L block for the 200 and a 3.3L for the 250/300, hence the weight difference. However, most other mfgs use the same block for their 200hp+ V6's, so weight would be the same across the range.

Re: twin engines on 23 center console
 

I have twin yamaha 200 saltwater in a 23 hull from 1985, no problems with water line and the top speed is 50 knots. this motor is the same weight as a 150

Re: twin engines on 23 center console
 

Are your motors on a bracket or the transom? I would have thought that twin 200's would have pushed this hull closer to 60. Are you running a center console? What kind of props are you turning?

Re: twin engines on 23 center console
 

the motors are in the transom and turn mirage props 19, i will test soon a 17 mirage props.

Re: twin engines on 23 center console
 

How many rpm's are you turning with the 19's at WOT.

Re: twin engines on 23 center console
 

6000, it hurt when you look the tach.

Re: twin engines on 23 center console
 

Maybe try something like this. It's a 2.5 race engine that turns 11. [img]/images/graemlins/laugh.gif[/img]

http://forums.screamandfly.com/forum...ad.php?t=56188

Re: twin engines on 23 center console
 

Menhaden

I'm confused here.Why do you want 500hp on a 23' boat? Are you going to catch more fish sooner than the other guy or do you have an unlimited pocketbook for the fuel bill. Maybe you can slice & dice dem manatees with counter roating viper props [img]/images/graemlins/confused.gif[/img]

BTW: Is your 23' rated for that HP? Will your insurance carrier in Tallahasse cover your boat. Mine won't here in Stuart. Hey Fellow-Ship, How about Broward County?

Re: twin engines on 23 center console
 

Hey Chuck, I found those engines for yah. I hope I didn't let the cat out of the bag. [img]/images/graemlins/confused.gif[/img] [img]/images/graemlins/wink.gif[/img]

I have a pair of 96 oil injected merc 275 hp motors.
They are the cosworth blocks.
I bought them off a 35' Intrepid in MI.
They had one stuck Cyl, (old gas) and needed to be gone thru.

I had my engine guy go thru them, and replace anything needed, and re-assemble. Pistons, rings, rods, seals bearings etc...the works.
We did the gearcases and the powerheads.
I have the mids, and cowls, essentially everything needed to reassemble.

They would be great for a stock aplication where real grunt is needed.
They pushed the Intrepid 52 mph, and that thing is huge...like 10' beam.

He repowered with new 250X's and lost 3mph.

$6,500 total for the pair.

I have alot of other stuff/engines and boats for sale also.

586-295-1212 C.

Re: twin engines on 23 center console
 

for what is worth... i would try a pair of 150 yamaha hpdi's or mabet the new bombardier e-tech 150's i did a 23 center console that had t/115's repowered it with 150 yamaha hpdi's top speed was in the 40kt range w/t-top and full load of fuel npt too shabby fuel economy was very good sd well. i would not put 200's on that rig you will rarely use that top end the extra price for the engines in my opinion is not worth it. if you want a race boat buy an apache w/kieth eckert engines. your mechanic sounds like he's giving you great advise tellimg you to forget the 250's

Re: twin engines on 23 center console
 

Menhaden ...what year is your boat ?? I think the max hp guideline for the older boats (Center Console) was 400 hp

Todays boats , which are heavier only recommend up to 300 hp

Why the need for such extreme speed ??? I think your mechanic is giving good advise

I know of a 23 with 2-225 on a bracket, restored 5-6 years ago. Besides costing a whole lot of cash for the restore and bracket / motors I've been told by the guy who did the work that the boat had too much engine , porpoises even though it had tabs and 450 hp was just unusable given our typical sea state. On top of which after the restoration the boat started to develop stress cracks from the hard running. He said it sure it moves !! but for what ??

Like Chuck said about insurance ...and its hard enough to get the insurance companies to insure an older hull ... wait till you tell them how much HP you got on the back(I guess the rules are different in every state)

Re: twin engines on 23 center console
 

First off you need to find out if it has a 25 or 30 inch transom. If it's 25 it needs to be 30.
I agree with you on the HP but those motors are heavy. The HPDI 150 has the same block as the 175, and their (468lbs x 2) thats a lot of weight on the back of a 23. As for the E-tec's, their off the scale, the only thing heavier is a Verado.
My feeling is you can go with the weight of twins providing you have some sort of floatation bracket to offset some of the weight (others will disagree with brackets, but thats another topic). Even with that I think twin E-tec's or Verado's is pushing it.
One thing people need to remember. When these boats/most boats were designed you didn't have these kinds of HP's and all the weight that come with them.
I see it all the time, the brand new rig with an older hull design and two hot & hefty 250 yami 4 strokes running wide open at a 45 degree angle, just praying to get on plane.

Re: twin engines on 23 center console
 

The boat I am looking at has a Seamark bracket. I am going to glass in the transom. I will send some pictures out as my project gets going. As far as speed goes and the guys above who wonder why I am looking at twin 200's on this rig, I would like to invite them to the panhandle of Florida where we fish. It is a 20 mile run to get to 70 feet of water.

My Lake and Bay Flats boat runs 70+ miles an hour so I guess I am use to the speed.

Re: twin engines on 23 center console
 

Ha Capt Chuck
I’m with you on this one. Personally I think the 23 is a great one engine boat with a 225 or 250 on the back transom mounted or on a bracket. If you want a second motor for long distance security sake and not really for additional power twin 140’s would be my first choice on a 30” deep flotation bracket with 25” shafts on the motors. The reason why I think this way is first off a 23’ boat is JUST a 23’ boat, “you can’t go that fast in this boat with out becoming air born” sometimes in 3’ Seas and for sure in 2-4’ Seas and in 3-5’ Seas you really need to run her about 32-34 rpm’s or so. The SeaCraft hull is a FANTASTIC HULL and capable of handling big water BUT a 23’ boat CAN’T CROSS OVER THE SECOND WAVE so when you come down from a wave you are hitting the next wave in exactly the wrong place NO 23’ BOAT CAN DO ANY BETTER. To handle crossing over to the next waves you need a boat approx 29’ to do that and those twin 225 or 250 are the correct choice. As for insurance forget it, insurance companies are not risk takes they are risks managers. They don’t insure any boat or person that wants to try to make 23’ boats fly just not what they do (not a profitable management exposure) they are not wanting to insure boats with more power that what they are rated for they have charts on individual manufacturers and have the power rating on each modal.
FellowShip [img]/images/graemlins/wink.gif[/img]

Re: twin engines on 23 center console
 

23s with twin 200+ motors are popular up here and are often for sale, usually after they have been salvaged from the bottom.

Finnie - I feel like I created a monster sending you to Scream & Fly. Oh, and my goal is almost set, you will soon pass me in posts [img]/images/graemlins/laugh.gif[/img]

Re: twin engines on 23 center console
 

Dude ain't no one passing you in posts. [img]/images/graemlins/laugh.gif[/img] BTW Scream and Fly rules! [img]/images/graemlins/grin.gif[/img]

Come to think of it, whats going on with your boat? You ever find out if it floats or not?

Re: twin engines on 23 center console
 

I just launched my redone 23 (76) with the Seamark bracket and twin 135s Rudes 2001 Ficht. Top speed 48 kts. 3200 in 3' waves tonight with tabs down 25 kts. It was an awesome feeling and superior ride. The bracket supports the weight of the engines - waterline 2" from chine.
Why pay the increase price/weight/gph?

Chuck and Mark have been on my boat during testing and they will tell you that these engines put us on our butts!

Bill

Re: twin engines on 23 center console
 

Hi Bill, thats great to hear! Are you all done?

Whats the weight of those motors?

Re: twin engines on 23 center console
 

Congrats man !!! WE want pictures now

Be interested to hear about your fuel consumption throughout the range. From the weight perspective they seem like a great option with the Bracket you have .... The books says (for the 2005 at least) the 25” ers are at 427 lbs each (for the 150's and the 135's )
Saves some weight over the Yami's too

Re: twin engines on 23 center console
 

I don't think we are ever done are we??!!
I was told the weight is around 400 ea and the bracket is 800....with the transom only going down 2" with 100 gals of fuel I'd say it was pretty close.
I was having sooooomuch fun driving I didn't really pay attention to the navman. I think I was about 12 gph total at 3100 rpm 25 knots. At trolling 1000rpm it is a little over 1gph total. Very quiet engines and they fired right up after sitting for almost a year.
The only downside to my weekend was my dx600 (raymarine fishfinder) lasted only a couple of hours and now it has taken a trip to NH.

BTW Chris...did you ever install your bracket on your 23'?
Bill

Re: twin engines on 23 center console
 

Bill, those a pretty impressive numbers, I don't think anyone could go wrong with those.
No, I didn't put the bracket on yet. Just as well though, I think it's going on the Seavette first, being that closer to going back in the water.
I'll have to get another one from Don, the wifes going to love that. [img]/images/graemlins/ooo.gif[/img] Aahh, I'll just have it shipped to Scotts. [img]/images/graemlins/cool.gif[/img]

Re: twin engines on 23 center console
 

The only issue that I have with my seamark is the access covers are not water tight so I will probably change them out. I think they have changed to a better cover but you might want to check.

Maybe you should put the bracket on your mom's spare boat I saw on the trailer (bat boat) with a 200 Yammie 4 stroke!! [img]/images/graemlins/blush.gif[/img]

Bill

Re: twin engines on 23 center console
 

Yikes! That would be freaky! That boat is tiny, it almost seems like a toy. I always figued if the neighbors complained about me having too any boats in the yard, I'd say that ones a lawn decoration. [img]/images/graemlins/grin.gif[/img]

Re: twin engines on 23 center console
 

generaider Replace them with Armstrong's. Buy them direct from Armstrong.

http://www.armstrongnautical.com/

Armstrong Nautical Products / A Division of Vallery Industries
3140 S.E. Dominica Terrace
Stuart, Florida 34997
Phone: 1-800-226-7204
Local: (772) 286-7204
Fax: (772) 288-1339

Re: twin engines on 23 center console
 

yea I like how they look like they belong on a sub!!
Bill

Re: twin engines on 23 center console
 

Bill

Definatly go with the Armstrongs. They are standard on the Seamarks now. Here's a picture of the inspection plate guts on my bracket [img]/images/graemlins/wink.gif[/img]

http://img.photobucket.com/albums/v1...etinstall1.jpg

Re: twin engines on 23 center console
 

Chuck, looks great. What color is that on the topside? You doing the whole boat in that? Did it pass the Gucci counsel? [img]/images/graemlins/grin.gif[/img]

Bill, those are the same hatches I have, did you get your bracket before or after me? I've had mine since 6/03, it seems I've had it longer since it just sits there and stares at me. [img]/images/graemlins/frown.gif[/img]

Re: twin engines on 23 center console
 

If I remember correctly I bought mine after you. Why are mine different? Maybe they were cutting corners cuz the company making mine tried using 5200 and hermco had to redo the glass. Not really happy about this info!!!

Bill

Re: twin engines on 23 center console
 

Hey Bill

What’s with the 5200 ??? What did they use that for ??

I think Fin was in "cabin fever mode" when he said he had Armstrong's on the bracket ... We talked and he's got the pop-out pie plates.

Yo Finster ... Absolutely ...Ship one of them brackets to my front door ...I'll take REAL good care of it [img]/images/graemlins/smirk.gif[/img]

Re: twin engines on 23 center console
 

Yeah yeah yeah Scott, lay off the pipe. [img]/images/graemlins/laugh.gif[/img]


Bill mine has 5200 that joins the platform and the main part of the bracket. Is that where the problem was? I wasn't crazy about that from the get go. I figure for that kind of dough it should be all molded one piece.

Re: twin engines on 23 center console
 

Yeah what he said...

Re: twin engines on 23 center console
 

Same for me and that is were it separated on the aft side on top around each motor connection. Don pulled the motors and dug out the 5200 and stuffed glass and resin in. You can't tell that anything was done.

So which covers do you have???!!
Bill