User Tag List

Thanks Thanks:  0
Likes Likes:  0
Page 2 of 5 FirstFirst 1 2 3 4 5 LastLast
Results 16 to 30 of 63
  1. #16
    Join Date
    Nov 2012
    Location
    Milwaukee, WI
    Posts
    14
    Thanks (Given)
    0
    Thanks (Received)
    1
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I thought it would run a lot faster than that, seeing as the boat only weighs a couple hundred pounds and the motor is under 300.
    Why do you suggest a low pitch prop? I've done a little reading online about different props and I was under the impression that a lower pitch is better for pulling power (heavier boats), and a high pitch prop (23 or so) is good for lightweight boats and gives you a higher top speed.
    Is it something to do with the shape or design of the boat that makes it different for tunnels?

    Either way, I may take your advice on getting a bigger motor. The original owner supposedly had a 125hp on it, so maybe I'll push it a little and try to find a 150 eventually. First I need to get it sealed and painted though.

    Another thing I noticed on the boat is that there are steel cables coming from the steering wheel shaft and running back through pulleys. Do you think I would be able to eliminate those and just use the standard steering cable that's on the Merc?

    I looked up some pictures of LeeCraft and Molinari tunnels and my boat definitely looks more like the Molinari's but not identical.

  2. #17
    Join Date
    Apr 2001
    Location
    Alabama
    Posts
    868
    Thanks (Given)
    14
    Thanks (Received)
    20
    Likes (Given)
    24
    Likes (Received)
    60
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That looks a lot like a Pugh tunnel to me. I owned one very similar, it had a sst100 which is an omc v4. The engine made about 158 horsepower and ran 98.6 on gps. I still own a pugh hydro and it looks like your boat from the capsule nose to the transom

  3. #18
    Join Date
    Jul 2001
    Location
    Paris, France
    Posts
    1,402
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I thing you could be in the 60's with that setup if the engine has good compression. A 3 blade cleaver 20" pitch is typical for that power. Keep that steering, it's perfect for a small cats. But first I'd put a nose cone / low water pickup. More importantly get some seat time with this combo, full tunnel cats can bite hard.
    Last edited by FrenchPhil; 11-11-2012 at 06:09 AM.
    ARGO Cat 18'
    Mercury 2.4EFI/CLE
    ------------------------------------
    If it's not a cat it's a.............dog ?



  4. #19
    Join Date
    Sep 2002
    Location
    Alabama
    Posts
    705
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by SnowPro1986 View Post
    I thought it would run a lot faster than that, seeing as the boat only weighs a couple hundred pounds and the motor is under 300.
    Why do you suggest a low pitch prop? I've done a little reading online about different props and I was under the impression that a lower pitch is better for pulling power (heavier boats), and a high pitch prop (23 or so) is good for lightweight boats and gives you a higher top speed.
    Is it something to do with the shape or design of the boat that makes it different for tunnels?

    Another thing I noticed on the boat is that there are steel cables coming from the steering wheel shaft and running back through pulleys. Do you think I would be able to eliminate those and just use the standard steering cable that's on the Merc?
    A tunnel works on a combination of hydro and aero dynamics. At a certain speed based on a particular boat's design it begins to trap air, essentially lightening the boat to over simplify the description. Anything under this transistional speed and the boat is just planing on the surface and may actually have more drag than a V Bottom. The air entrapment is why a tunnel is faster than other designs, all other things being equal. I dont think you have enough power to make the tunnel work effectively as big as the boat is. Again, the old 950s probably put out an actual net horsepower somewhere in the 70's. The 850XS of that era on a smaller boat with a better gearcase that could be run much higher only ran 70's in race trim and it probably had a horsepower advantage over the earlier 950. The reason for the recommendation of a lower pitch prop is that I dont think you could turn a higher pitch. I could be wrong, but dont think you would ever get a 23 as was mentioned into a safe RPM range with that engine. The gear ratio of the lower will enter into the consideration and I dont remember the ratio in a 950 but some of the early 70s engines had 1.78:1 rather than 2:1 which the mostly all went to in 1972. Phil and I have differing opinions on the speed potential with that engine. I don't see any likelyhood of 60's. You should keep the cable/pulley steering. It's period correct for that boat and the most trouble free option. It also is the most precise for control. The only downside is you will have to fabricate or find nostalgic steering bars to bolt on the engine. A common practice back then was a pair of steel ears, which could be made thinner than aluminum that bolted on under the rear 3 powerhead studs on each side and then a steering bar bolting to them.
    bama hama

  5. #20
    Join Date
    Apr 2001
    Location
    Virginia Beach
    Posts
    3,254
    Thanks (Given)
    18
    Thanks (Received)
    13
    Likes (Given)
    56
    Likes (Received)
    112
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The sponsons, decks and cowls all suggest late 1970s Molinari. That 950 is not really the right engine for the boat but with a light driver, it could work. As someone suggested, a 1500xs would be the right engine as it appears to be a Sport J boat. Great find, nice to see it come out of the woodwork. Hopefully you'll restore it anbd bring it to some APBA/OPC Vintage events in 2013.

    MercNuts gave you the best advice re: steering and setup. Keep asking questions and pushing forward, you'll get all the help you need and want here! Just gotta filter through to what's right for you and your boat.

    John Tiger

  6. #21
    Join Date
    Jul 2004
    Location
    newmarket, ont,Can
    Posts
    338
    Thanks (Given)
    292
    Thanks (Received)
    10
    Likes (Given)
    684
    Likes (Received)
    31
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Neat boat- looks like a Lee Craft- mid 80's-but I don't know if they ever made them wood? -so being wood and the design it looks like a bit molinari like or copy/splash -is there any serial number on the back transom???
    -Johns right- get that restored and come out with us in 2013 to vintage events- Ted
    Last edited by shadowcat; 11-11-2012 at 10:12 AM.

  7. #22
    Join Date
    Nov 2008
    Location
    Gainesville,GA
    Posts
    162
    Thanks (Given)
    0
    Thanks (Received)
    8
    Likes (Given)
    21
    Likes (Received)
    30
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The boat does look like a Molinari.... The picture I am posting is a Molinary from a race in Peru in 1983 and the boat was brand new. Hope it helps.Click image for larger version. 

Name:	escanear0025[1].jpg 
Views:	1587 
Size:	97.4 KB 
ID:	267940

  8. #23
    Join Date
    Jan 2002
    Location
    ST.PETE FL.
    Posts
    15,273
    Mentioned
    1 Post(s)
    Tagged
    5 Thread(s)
    im sure you could find a super speedmaster for it , they pop up for sale on here , that would be the way to go ...
    SEEBOLD CHAMPBOAT MERCURY S3000

  9. #24
    Join Date
    Jun 2001
    Location
    Twin Lake, Michigan
    Posts
    3,346
    Thanks (Given)
    9
    Thanks (Received)
    1
    Likes (Given)
    3
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Problem with the SSM is propellers in the pitch range that he would need for that motor. They are nearly non exsistant. A standard lower unit with a cone set to the right height will run real well. Now if he had a 1500 on it and was an experianced pilot well.... 'nother story.

    Quote Originally Posted by PARKER RABE View Post
    im sure you could find a super speedmaster for it , they pop up for sale on here , that would be the way to go ...
    Bruster's Mercury solid motor mounts, details here:
    http://www.powercatboat.com/Bruster/Bruster.html
    I'm been living in fast forward, now I need to rewind real slow....

  10. #25
    Join Date
    Jul 2003
    Location
    North Branch & Pine City, Mn.
    Posts
    2,787
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You will get a lot of info on this boat on boatracingfacts dot com

    It is a tunnel hull, or also referred to as a tunnel boat...not a hydroplane. A hydroplane would have a large, flat bottom with shallow sponsons in front.
    Last edited by rev.ronnie; 11-12-2012 at 12:36 PM.
    The Reverend, (Cedar Machine Service on Facebook)
    1989 HST 2.5 260 Merc Offshore
    1991 Vaserette YT 200 Mercury
    1988 Venus XT 200 Yamaha
    1983 Viper II Merc 90
    1977 Viper
    Mini GT tunnel, 25 Merc
    "African Queen" pontoon 25 Merc
    Aluma fishin tub, 20 motors to choose from!



    GUESS WHAT?...I gotta fever,...and the only prescription...IS MORE COWBELL!!

  11. #26
    Join Date
    Nov 2012
    Location
    Milwaukee, WI
    Posts
    14
    Thanks (Given)
    0
    Thanks (Received)
    1
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    After seeing that picture aquanaut posted, I'd say it's definitely a Molinari, possibly even the same year. I looked all over for a serial number but couldn't find anything.

    I think I'll try the 950 on it for a couple runs and see how much bigger I want to go after I get a feel for it. I have a long way to go before it even touches water though. Getting all the old paint off is going to take longer than I thought, but hopefully I'll be able to bring it out to some events come springtime.

    Here's some more pictures of the boat and motor. There's a picture of a cable/bracket that was sitting inside the back of the boat, anybody know what it's for?










  12. #27
    Join Date
    Jul 2004
    Location
    newmarket, ont,Can
    Posts
    338
    Thanks (Given)
    292
    Thanks (Received)
    10
    Likes (Given)
    684
    Likes (Received)
    31
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    -my quick guess- throttle cable- foot throttle maybe?????

  13. #28
    Join Date
    Jul 2004
    Location
    newmarket, ont,Can
    Posts
    338
    Thanks (Given)
    292
    Thanks (Received)
    10
    Likes (Given)
    684
    Likes (Received)
    31
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    the back end of the boat does not look like a molinari boat

  14. #29
    Join Date
    Apr 2001
    Location
    IL
    Posts
    854
    Thanks (Given)
    1
    Thanks (Received)
    5
    Likes (Given)
    4
    Likes (Received)
    47
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I don't think I ever saw a Molinari here in the states with a deck like that and with no transom setback. But, I could be wrong. There may be one way to tell if it is a Molinari. Or a copy of one. Look under the decks from inside the cockpit. Do they look like this photo? If it is a Molinari they will. The curved out portions in the rib between stringers are how the carpenters built these boats.

    Mark N
    "I'ma motorboatin' sonuvabitch!"

  15. #30
    Join Date
    Feb 2003
    Location
    peoria il
    Posts
    274
    Thanks (Given)
    0
    Thanks (Received)
    4
    Likes (Given)
    0
    Likes (Received)
    16
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Cool boat Should be fun,
    Like Parker said you need more power a short mid and SSM.
    This is the one i run on my 15ft tunnel.

    Dale
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSCF0860.jpg 
Views:	95 
Size:	101.0 KB 
ID:	267976  
    Last edited by 25ss; 11-12-2012 at 02:10 AM.

Page 2 of 5 FirstFirst 1 2 3 4 5 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •