Landracing Forum Home
November 20, 2017, 12:13:08 PM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News:
BACK TO LANDRACING.COM HOMEPAGE
 
   Home   Help Search Calendar Login Register  


(Note: Donations are not tax deductible)







Live Audio Streaming and Archives of Past Events
Next Live Event: TBD
Pages: [1] 2 3 4   Go Down
  Print  
Author Topic: New BUB's build 2013  (Read 9676 times)
0 Members and 1 Guest are viewing this topic.
Marty
Full Member
***
Offline Offline

Location: Grand Junction,Colorado
Posts: 67




Ignore
« on: March 31, 2013, 07:01:46 PM »

Trying my hand at a new bike build, tell me what you think Thanks.


* DAD landspeed1.jpg (133.56 KB, 1280x720 - viewed 294 times.)

* DAD landspeed21.jpg (137.75 KB, 1280x720 - viewed 217 times.)
« Last Edit: March 31, 2013, 07:05:38 PM by Marty » Logged
Stan Back
Hero Member
*****
Offline Offline

Location: San Berdoo
Posts: 4757





Ignore
« Reply #1 on: March 31, 2013, 07:42:06 PM »

Be good to have a motor.
Logged

Member of the San Berdoo Roadsters California's most-exclusive roadster club.
Celebrating 65th anniversary of racing on the salt.
Marty
Full Member
***
Offline Offline

Location: Grand Junction,Colorado
Posts: 67




Ignore
« Reply #2 on: March 31, 2013, 07:58:48 PM »

Thought I would try the flinstone way!!! LOL. there is still alot of brackets and supports to go. Got a motor, just in re build stage.
Logged
tauruck
Hero Member
*****
Offline Offline

Age: N/A
Location: Johannesburg, South Africa
Posts: 4471





Ignore
« Reply #3 on: March 31, 2013, 11:16:29 PM »

Yabadabbadoo!. It looks good so far and the rear hub is very cool. What's it off?. Good luck with the build. cheers
Logged

donpearsall
Sr. Member
****
Offline Offline

Age: 65
Location: Spokane, Washington
Posts: 664



WWW

Ignore
« Reply #4 on: March 31, 2013, 11:26:56 PM »

That's one looonnnnggg bike. Good luck with it. Spokes?? Those went out before the Flintstones!
Tell us some details. What class are you building it for?
See you there.

Don

Logged

550 hp 2003 Suzuki Hayabusa Land Speed Racer
Marty
Full Member
***
Offline Offline

Location: Grand Junction,Colorado
Posts: 67




Ignore
« Reply #5 on: April 01, 2013, 06:14:57 PM »

Rear hub is an rd 350 yamaha. drum brake figured weight wasnt the issue here but drag is. 94 inch wheel base, thought it would be nice and stable, still got to hang fuel cells and more gussets plus battery box and nitrous stuff. front hub and wheel will match but no brake. Class is still to be determined, keep you posted. thanks
Logged
Interested Observer
Sr. Member
****
Offline Offline

Posts: 330




Ignore
« Reply #6 on: April 01, 2013, 07:34:00 PM »

The frame front end looks awfully flexible.  Hardly any torsional stiffness.
Logged
55chevr
Hero Member
*****
Offline Offline

Location: Long Island, NY
Posts: 2221





Ignore
« Reply #7 on: April 01, 2013, 08:07:52 PM »

The engine will add some rigidity as part of the stressed frame.

Joe 
Logged
DND
Sr. Member
****
Offline Offline

Location: Granada Hills Ca.
Posts: 395





Ignore
« Reply #8 on: April 01, 2013, 09:11:12 PM »

Hi Marty

Looking good so far, what type of engine are you going to run and how many holes 1 - 2 - 3 - 4

Don
Logged
MTABike
Full Member
***
Offline Offline

Posts: 94





Ignore
« Reply #9 on: April 01, 2013, 10:27:55 PM »

Marty,
Keep up the good work!  I love seeing folks build true special construction frames.  You've got long and low covered.  I look forward to seeing this one develop.  Please fill us in on engine details and if you need any parts, etc....
~Scott
Logged
tauruck
Hero Member
*****
Offline Offline

Age: N/A
Location: Johannesburg, South Africa
Posts: 4471





Ignore
« Reply #10 on: April 02, 2013, 02:16:59 AM »

That's one looonnnnggg bike. Good luck with it. Spokes?? Those went out before the Flintstones!
Tell us some details. What class are you building it for?
See you there.

Don


Don, you don't like spokes?. Spokes rule, me, I love spokes.
Logged

Peter Jack
Hero Member
*****
Offline Offline

Age: 74
Location: Calgary, Alberta
Posts: 3444





Ignore
« Reply #11 on: April 02, 2013, 05:17:24 AM »

I've ridden down two rear blowouts from speed because a foreign object ended up in the tire and ripped the tube. I refuse to ride anything with spoked wheels and tube tires. There's nothing sets your heart to racing like when the rear end of the bike decides it's going to get past you at 70 to 75 mph and you're all crossed up like a speedway bike trying to stay upright and get stopped. I'm a real fan of tubeless tires and one piece wheels.  shocked shocked grin

Pete
Logged
tauruck
Hero Member
*****
Offline Offline

Age: N/A
Location: Johannesburg, South Africa
Posts: 4471





Ignore
« Reply #12 on: April 02, 2013, 07:51:43 AM »

Only two kinds of riders, those that have fallen off and those that are still going to. grin
Logged

Koncretekid
Sr. Member
****
Offline Offline

Age: 70
Location: Yarmouth, Nova Scotia & Lafayette, Co.
Posts: 991





Ignore
« Reply #13 on: April 02, 2013, 09:10:23 AM »

Good start with the frame, but a few questions and observations:
-what is the frame material?
-try to keep truss members intersecting at their ends; think of triangles connected to triangles.
-the single top tube is too long to be considered a "short column" so will flex and could bend.  I prefer double top tube or a larger diameter, like the Egli design.  We can encounter fatigue cracking, even in tubes in compression.
-add diagonal bracing (motor will help if connected at it's corners) and lots of crossmembers.
-add gussets at the headstock; you don't want any flexing at that point.
-larger front and rear axles and larger fork tubes like new sportbikes will increase torsional stiffness as well.
-spoke wheels are hard to true up and can encounter other problems as Peter has posted.
Good luck with the build.  I live in Lafayette, CO spring and fall. Feel free to ask questions.
Tom
     
Logged

We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!
bak189
Sr. Member
****
Offline Offline

Age: 80
Location: CA. AZ. Netherlands
Posts: 761




Ignore
« Reply #14 on: April 02, 2013, 02:13:21 PM »

WHY....so long?Huh?  Are you planning to attach a sidecar?Huh
Logged

Question authority.....always
Pages: [1] 2 3 4   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Simple Audio Video Embedder
Valid XHTML 1.0! Valid CSS!


Google visited last this page September 29, 2017, 08:30:47 AM