User Tag List
Results 16 to 30 of 63
Thread: Top Heavy Tunnel Hull ? -Video-
-
07-04-2019, 06:42 AM #16
The only thing top heavy is the driver
Now get your sawzall cut open the deck 12 to 18" and move the driver forward.Last edited by CUDA; 07-04-2019 at 10:54 AM.
We have invented the world; WE see
-
07-05-2019, 02:37 PM #17
Yes - I think I'm going to grab a few bags of sand and throw them up front. Maybe 200lbs and see what she does.
1) 1995 14' Bayliner Restoration <--Click
2) Home-Made Tunnel-Boat Project <--Click
-
07-05-2019, 02:41 PM #18
Don't tempt me! haha. I'm THIS close to removing the gas tank in back, and doing something up forward, but it will be a smaller tank for sure. Not much room up there. Just getting the battery up there was a pain in the arse. Right now I have an 18 gallon tank in the rear hatch. I don't think that's helping anything.
I'll run the tank low, and throw some sandbags up front. Maybe i'll do a fuel bladder type system. That's about the only way I could get a tank up there.1) 1995 14' Bayliner Restoration <--Click
2) Home-Made Tunnel-Boat Project <--Click
-
07-06-2019, 11:45 AM #195000 RPM
- Join Date
- Oct 2017
- Location
- Hugo, MN
- Posts
- 326
- Thanks (Given)
- 36
- Thanks (Received)
- 18
- Likes (Given)
- 62
- Likes (Received)
- 81
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
I think 200lb is probably too much, especially if you move them way up front. Start with less and add more as needed.
Maybe don't have to change or move fuel tank, just don't fill it up all the way. Wouldn't want the tank up front anyway as your balance and hop would always be changing depending on how much fuel you've burned.
Oh the fun of custom design/rigging.
-
07-06-2019, 12:03 PM #205000 RPM
- Join Date
- Oct 2017
- Location
- Hugo, MN
- Posts
- 326
- Thanks (Given)
- 36
- Thanks (Received)
- 18
- Likes (Given)
- 62
- Likes (Received)
- 81
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
I bought this bag recently to use for ballast for my side-steer Viking:
https://smile.amazon.com/dp/B0752S2F...roduct_details
It fits a 50lb playsand bag from Ace hardware perfectly. The bag of playsand is brick shaped so doesn't roll around.
Has been great so far.
-
07-08-2019, 10:42 AM #21Member
- Join Date
- Oct 2009
- Location
- Lake Conroe, Tx
- Posts
- 63
- Thanks (Given)
- 4
- Thanks (Received)
- 2
- Likes (Given)
- 6
- Likes (Received)
- 30
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
Something you could try is put the boat in a slight left arc and see if it stays planted. On mine i did that untill i fixed it. My problem was the center pod was too high, even with the sponsons. I know yours is a true tunnel but maybe engine height, if not weight distribution is probably the issue. The weight up front should tell you some things, and you can fix it from there. Good luck.
-
07-08-2019, 11:45 AM #22
-
07-08-2019, 11:49 AM #23
That's an idea, Hydrostream would have a small ramp near transom to push down front.
Try easy stuff first.Last edited by CUDA; 07-08-2019 at 05:30 PM.
We have invented the world; WE see
-
home made tunnel liked this post
-
07-08-2019, 01:05 PM #24
You might want to consider Jim Russell's Tunnelboat Design program before you start moving fuel tanks and cutting up your hull. It takes a little time to enter all your weights & dimensions in... but after that you can try any changes you want and see the results in seconds.
https://aeromarineresearch.com/tbdp6.html
-
Jimboat liked this post
-
07-08-2019, 03:06 PM #251) 1995 14' Bayliner Restoration <--Click
2) Home-Made Tunnel-Boat Project <--Click
-
07-08-2019, 03:10 PM #261) 1995 14' Bayliner Restoration <--Click
2) Home-Made Tunnel-Boat Project <--Click
-
07-08-2019, 03:17 PM #27Screaming And Flying!
- Join Date
- Mar 2008
- Location
- Tourist Trap, Florida
- Posts
- 14,753
- Thanks (Given)
- 381
- Thanks (Received)
- 1305
- Likes (Given)
- 5602
- Likes (Received)
- 11033
- Mentioned
- 2 Post(s)
- Tagged
- 1 Thread(s)
A lot or people do eliminate the hook and end up with a porpoise....That you can't ride. Tunnels typically use compression of the tunnel itself to accomplish the same thing. To provide stern lift.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
-
07-08-2019, 04:09 PM #28
-
07-08-2019, 05:39 PM #29
I'm just talking about making a 3/16 high 1 inch wide strip of Bondo at the end of the running surface / sponson. easy to sand off or lower if too much.
Allison's use a low lipWe have invented the world; WE see
-
XstreamVking liked this post
-
07-08-2019, 06:21 PM #301) 1995 14' Bayliner Restoration <--Click
2) Home-Made Tunnel-Boat Project <--Click
Similar Threads
-
Video running in the Gulf. 13" tunnel hull
By Mr. Demeanor in forum General Boating DiscussionReplies: 8Last Post: 10-19-2011, 01:09 AM -
New Tunnel design Spire Tunnel hull 126+ with twins
By whipper in forum General Boating DiscussionReplies: 0Last Post: 10-10-2011, 04:01 PM -
THE tunnel hull video
By Mark75H in forum Outboard and Racing HistoryReplies: 8Last Post: 03-08-2010, 01:11 PM -
Prop advice...300x on a heavy hull
By 86 apache 22 in forum Technical DiscussionReplies: 3Last Post: 05-22-2007, 12:36 PM -
seting up a small but "heavy" tunnel hull
By 150aintenuff in forum Props, Setup, and RiggingReplies: 14Last Post: 05-04-2005, 05:13 PM