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Thread: weight difference
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09-19-2009, 02:18 PM #1
weight difference
What is the weight difference between a looper and a crossflow V6. I'm trying to figure out if the difference in weight is worth the performance gains on a Vector which are very sensitive to stern weight. I use a 4in jp flipped to yeild 1 1/2in of setback.
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09-20-2009, 12:07 AM #2
the diff. is almost 100lbs, I've had both on my viking [not at the same time] and if you go from a x-flow to a looper your going to hate it but if you do go with a looper use minimal setback
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09-20-2009, 07:52 AM #3
That makes the decision easy to make. Thanks!
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09-20-2009, 08:18 AM #4
dont know what a croosflow weighs but my old 150 looper weighed 368 lbs.
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09-20-2009, 02:36 PM #5
Crossflow 235 weighs in right at 400#.
Looper 90 degree is 450#. So, not that much.
The 150 is a 60 degree motor and is totally different from the 90 degree.
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09-20-2009, 05:50 PM #6Team Member
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good info on weights
do you guys know about the NADA guides as a source for motor weights?
i find it pretty useful.
-peter"padded wonder"
__________
the wet:
Hydrostream Viper, 140 v4 crossflow, some Raker props
16' Baja/Tahiti/Sidewinder clone, 135 v4 crossflow
17' boston whaler alert, 90 merc fourstroke
13' boston whaler, 40hp yamaha
the dry:
2003 bmw ///M5
1993 mustang/griggs racing road race car
and a handful of clunkers
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09-20-2009, 08:45 PM #7
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09-20-2009, 09:34 PM #8
I used to race with a guy we called crazy pete, he had an HST w/ a V8omc and if you asked him how much his motor weighed he would say wet or dry? because the ''refrigerator'' filled up with about 8 gallons of water when you started it - point is v6 loopers hold a lot of water
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10-09-2009, 09:16 PM #9
A looper does weigh more, But there is a huge power differ between the two... I know you would have no prob with a v6 looper on your boat. Iv seen a 3.3 90deg johnyrude on a viper befor!! My friend is puting a 3.0 v6 looper on his vector!! If you want, just call me and we can talk again...
Blazer VLX150 w/ 225 Johnyrude
Hydrostream Viper (sold)http://www.youtube.com/watch?v=D0OA6oxZoTg
Westwind mx15
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10-10-2009, 05:47 AM #10
Pauls #'s are accurate.
If you strip all the crap off a looper you can get it down to 400 - 410 fairly easily. My 3.3 w/a Sporty on a Taylor 16" mid (heavier than OEM) is 410.
If you ran a light flywheel you'd be right at 400.
The power potential between the two designs is night and day.
Here's a looper on a Vector. PS, don't listen to the "EXPERTS" telling you it's too heavy. I didn't.
http://www.youtube.com/watch?v=jU5-D0tHDtkI'd rather be competitive w/junk I built in my garage than win w/stuff I bought.
I refuse to allow common sense to interfere w/my boat buying decisions.
Checkmate 16' 140 Johnson
Hydrostream 17' Vector FrankenRude I
Laser 480 (?) 21' w/GT 200
Glastron Carlson Conquest w/XP 2.6
Glastron Carlson CVX 20 w/XP 2.6
24' Sonic w/twin 250 Johnsons
24' Sonic w/twin 250 HO Johnsons
19' STV River Rocket w/FrankenRude II
Allison XR 2002 w/Frankenrude II
Hydrostream 18' V-King w/Frankenrude II
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10-10-2009, 07:51 AM #11
Dry weights
-235 20 inch 395 lbs from memory.
-3 litre looper 450 lbs.
-3.3 ETEC 519 lbs.
The loopers do carry a lot of water in the powerhead.
-Only 55 lbs dry but it is basically all in the powerhead.
For monos in general :That raises the centre of gravity which has a huge effect on cornering as well as rough water handling. Worse still it raises the centre of gravity at the back of the boat so putting weight up front to offset the extra engine weight aft will produce little improvement in cornering. The most effective way to pull the CoG down aft is to add ballast at the transom low in the hull, under the floor. Of course that is not practical as it causes a few other problems.
Good luck
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10-10-2009, 09:20 AM #12
Blazer VLX150 w/ 225 Johnyrude
Hydrostream Viper (sold)http://www.youtube.com/watch?v=D0OA6oxZoTg
Westwind mx15
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10-10-2009, 11:10 PM #13
I've had 4 omc v6's on the same boat, my 1980 viking, I started w/ a 235 ran that one 4 years, then even after JTjr warned me that I would not like it I put a 92 225 [2 years] and then a 93 225 [closed deck block] for 2 more years, well I learned a few things, it felt like the center of gravity was under the splashwell, I ended up putting 45 lbs of lead in a battery box under the deck to get the boat to feel right again, and I had to be carefull backing up, basicly I learned what the boat was and was'nt supposed to feel like, I'm not saying loopers are bad motors I just dont want a diesel engine in my corvette, glad to have a 235 johnson on my viking again, my engine picks for the viper, vector, v-king family? v4, v6 x-flows, 2.0, 2.4, 2.5 mercs.......just sharing some first hand experience
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10-11-2009, 06:07 AM #14
Huh?
Guess the one in the video @ 101 could be photo shopped?
After rebuilding that hull it weighed 543. I rigged it with everything in the rear as we're taught to do. It was very flighty in that configuration.
Accordingly, I moved the battery to the bow (huge job I know) and it totally tamed the handling of the boat.
That ill handling turd has been all over the Gulf of Mexico (including chasing the Merc test boats through 3' slop), up and down the Ohio River, tons of inland lakes in Ohio and Florida etc, etc.
That boat went straight rigged for single seat, center steer, side steer two in the boat, side steer one in the boat etc.
If it had had hydraulic steering you could have taken your hands off the wheel at a 100.
I have pix's of it at 90+ with 2 in the boat through 1 1/2' chop flat and level.
I was absolutely shocked at what a great little lake boat it ended up being after all the negative comments I heard while building it. Had a blast in that thing!
Lot's of people have seen how well and in control that boat ran w/a heavy ass looper on it.
Here's a pic of how high it floated with the pig motor on it. BTW, that picture was taken on the outside of CayoCosta Island in the Gulf. I (190 lbs) could easily get in the back of the boat to work on the motor w/o taking water over the transom even with that pig on the back.
Please don't let facts or actual experience interfere with this thread
<a href="http://s290.photobucket.com/albums/ll255/Instigatorspixs/?action=view¤t=vectoringulf.jpg" target="_blank"><img src="http://i290.photobucket.com/albums/ll255/Instigatorspixs/vectoringulf.jpg" border="0" alt="Photobucket"></a>
<a href="http://s290.photobucket.com/albums/ll255/Instigatorspixs/?action=view¤t=51.jpg" target="_blank"><img src="http://i290.photobucket.com/albums/ll255/Instigatorspixs/51.jpg" border="0" alt="Photobucket"></a>
<a href="http://s290.photobucket.com/albums/ll255/Instigatorspixs/?action=view¤t=vectoratspeed.jpg" target="_blank"><img src="http://i290.photobucket.com/albums/ll255/Instigatorspixs/vectoratspeed.jpg" border="0" alt="Photobucket"></a>Last edited by Instigator; 10-11-2009 at 06:17 AM.
I'd rather be competitive w/junk I built in my garage than win w/stuff I bought.
I refuse to allow common sense to interfere w/my boat buying decisions.
Checkmate 16' 140 Johnson
Hydrostream 17' Vector FrankenRude I
Laser 480 (?) 21' w/GT 200
Glastron Carlson Conquest w/XP 2.6
Glastron Carlson CVX 20 w/XP 2.6
24' Sonic w/twin 250 Johnsons
24' Sonic w/twin 250 HO Johnsons
19' STV River Rocket w/FrankenRude II
Allison XR 2002 w/Frankenrude II
Hydrostream 18' V-King w/Frankenrude II
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10-11-2009, 08:51 AM #15
I'm really starting to like the boat w/ the 200 Merc on it. I'm going to finish my set up and leave it that way. I wanted to go back to an OMC because I've never trusted the reliability of a Merc, but I'm starting to change my mind, I love the power and the sound of the Merc.
Thanks for the imputs.