Landracing Forum Home
June 22, 2018, 04:05:35 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] 5 6 7 8 9 10 11 12 13 14 15 16 17 18   Go Down
  Print  
Author Topic: Twin Engine Panther from England  (Read 52320 times)
0 Members and 1 Guest are viewing this topic.
octane
Sr. Member
****
Offline Offline

Age: 61
Location: Copenhagen, Denmark
Posts: 522


Nimbus 750 APS-VBF




Ignore
« Reply #45 on: June 13, 2010, 02:52:54 AM »

Jerry Magnuson has a "countershaft" setup that's used on the Vette kits (with Eaton blower).  It gets the blower belt to the other side, without having to reverse the rotation method. 



Logged

"A designer knows he has achieved perfection
not when there is nothing left to add
but when there is nothing left to take away"

Antoine de Saint-Exupery
panic
Sr. Member
****
Offline Offline

Age: 72
Location: Lynbrook, New York
Posts: 773



WWW

Ignore
« Reply #46 on: June 13, 2010, 08:29:17 AM »

Eaton M24 might be suitable if you slow it down a bit.
Logged
wobblywalrus
Hero Member
*****
Offline Offline

Age: 64
Location: backwoods Oregon
Posts: 4639





Ignore
« Reply #47 on: June 16, 2010, 12:13:33 AM »

Sumo and Lars, do you guys have any formulae to figure out the correct supercharger size for a bike?
Logged
octane
Sr. Member
****
Offline Offline

Age: 61
Location: Copenhagen, Denmark
Posts: 522


Nimbus 750 APS-VBF




Ignore
« Reply #48 on: June 16, 2010, 01:09:06 AM »

Yes WW.

Here's one:


From an old book "Supercharging Cars and Motorcycles" by Maurice Brierly




...and I can highly recommend studying these brilliant pages
which also contains a formula for finding the right blower:
( note that there are several pages )

Supercharger Installation on Older Motorcycles

written by none other than Mr. "Panic" who posted right above you here.



.
PS: Wobbly, please send me a PM stating your email address.
There's a file on this subject that I'd like to send you.
« Last Edit: June 16, 2010, 01:13:36 AM by octane » Logged

"A designer knows he has achieved perfection
not when there is nothing left to add
but when there is nothing left to take away"

Antoine de Saint-Exupery
wobblywalrus
Hero Member
*****
Offline Offline

Age: 64
Location: backwoods Oregon
Posts: 4639





Ignore
« Reply #49 on: June 16, 2010, 09:19:35 PM »

Thanks, Lars.  A PM is on its way.  I do not have the money to put on a blower now.  I am learning from these posts so I can do it right when the time comes.

The Norton blow up was not unusual and I saw it on BSA's and Triumphs, too.  One thing I learned a long time ago was to 1)  install new cylinder studs at rebuilds, 2) check the nut tightness often, and 3)  use the factory torque values.  Loose nuts or too much power can cause the problem you see. 

My old bikes and the ones I built never saw the salt, but they were raced.  It was common practice to check the cylinder nut torques between races.  This was done until I was sure all of the nuts would stay tight.  Imagining myself racing an old brit bike at Bonneville, I would check the nut tightness before a run down the salt and between runs, too.     
Logged
Seldom Seen Slim
Administrator
Hero Member
***
Offline Offline

Age: 70
Location: Skandia, Michigan
Posts: 11934


Nancy -- 201.913 mph record on a production ZX15!


WWW
« Reply #50 on: June 17, 2010, 09:50:49 AM »

Attention Rex and everyone else:

The email address of each Forum member is (usually, at his own discretion) available  as part of the information on the far left side of each post.  There'll be a tiny envelope -- which needs merely to have the cursor put on it to display the email addy, and clicked upon to open a mail blank.  WWalrus's posts DO have this on 'em -- so you can find out his email address without having to ask for it.

Similarly you can find out the website a member suggests as his own, and you can also lick on the icon next to the envelope to automatically bring up a form for PMs (not PMS -- no formula needed for that!  We all know how to get her in a cranky mood, don't we?).  And so on -- check out the various icons to see the features in the Forum software.

OK, back to the regularly scheduled topic.
Logged

Jon E. Wennerberg
 a/k/a Seldom Seen Slim
 Skandia, Michigan
 (that's way up north)
2 Club member x2
Owner of landracing.com
octane
Sr. Member
****
Offline Offline

Age: 61
Location: Copenhagen, Denmark
Posts: 522


Nimbus 750 APS-VBF




Ignore
« Reply #51 on: June 17, 2010, 10:21:31 AM »

Thanks, Lars. 

You're welcome !

Quote
..... 1)  install new cylinder studs at rebuilds,...

Yes'Sir !
. I did just that





Logged

"A designer knows he has achieved perfection
not when there is nothing left to add
but when there is nothing left to take away"

Antoine de Saint-Exupery
SUMO
Full Member
***
Offline Offline

Age: 40
Location: Dunstable, ENGLAND
Posts: 104



WWW

Ignore
« Reply #52 on: June 18, 2010, 07:58:40 AM »

im not near as quick as chris - i dont do frame building...

just been doodling at work killing time before i drop that parts off with the frame builder next week - cant wait

rear frame geometry needs sorting but im leaving that to the experts

exhaust looks like it will prove a challenge with the supercharger positioning but im sure i can sort something with it, maybe just switch it to the other side of the bike, there are 2 exhaust ports to pick from [panther basically decided to try make the bike look a bit like the more fashionable twins of the time so they just added an extra exhaust port and ran an exhaust either side of the bike - why change an engine design eh??!, thing is - it only needs 1 to breath right, so at least it gives options]

Logged
oz
Sr. Member
****
Offline Offline

Age: 54
Location: Leighton Buzzard GB
Posts: 587


Geordie Power.




Ignore
« Reply #53 on: June 25, 2010, 12:11:51 PM »

Whats the Crack then dude any progress yet?
Logged

Newcastle born and bred a City built on Coal and Steel and a people built of stronger stuff
SUMO
Full Member
***
Offline Offline

Age: 40
Location: Dunstable, ENGLAND
Posts: 104



WWW

Ignore
« Reply #54 on: June 25, 2010, 05:03:48 PM »

Progress is I drOpped all the bits off with briz the frame guy this morning. Looking at 3-4 weeks and I have a roller ready for me to do my thing with it. It's a long jaunt to Norfolk but I'm verry happy
Logged
SUMO
Full Member
***
Offline Offline

Age: 40
Location: Dunstable, ENGLAND
Posts: 104



WWW

Ignore
« Reply #55 on: July 09, 2010, 01:59:18 PM »

got some progress pics today

im like a dog with 2 dicks - so chuffed how its coming together

briz has had a LOT of input on the frame and changed things around for me to make things better / stronger etc. also he has done me a lovely little sponsorship deal and is doing the frame out of chrome-moly at no extra cost



Logged
Glen
Global Moderator
Hero Member
***
Offline Offline

Age: 83
Location: South West Utah
Posts: 6964

SCTA/BNI timer 1983 to 2004, Retired,. Crew on Tur



« Reply #56 on: July 09, 2010, 02:01:11 PM »

Nice frame jig, build looking good
Logged

Glen
Crew on Turbinator II

South West, Utah
desperate
Full Member
***
Offline Offline

Age: 67
Location: On the cliff edge, California, Norfolk, U/K
Posts: 127



WWW

Ignore
« Reply #57 on: July 13, 2010, 12:51:51 PM »

Briz works from a small-ish purpose built workshop at the end of the garden, and has been building top class bikes for years & years, he's one clever bloke, and rarely advertises. Maybe one day he'll find time to finish his Daimler V8 hemi bike.
Sumo, isn't it a good feeling to see your ideas materialise, it's looking really good mate.
« Last Edit: July 13, 2010, 12:53:42 PM by desperate » Logged

Don't push me, I'm close to the edge.
SUMO
Full Member
***
Offline Offline

Age: 40
Location: Dunstable, ENGLAND
Posts: 104



WWW

Ignore
« Reply #58 on: July 13, 2010, 12:57:41 PM »

its great to see the frame coming together after the tribulations. and im 100% sure its with the right man now. i just cant wait to get my hands on it and start with the machine work mating the 2 engines / blower up.

getting the pics last week really re-lit the fire for the project. i was getting a bit jaded with the previous goings on.
Logged
SUMO
Full Member
***
Offline Offline

Age: 40
Location: Dunstable, ENGLAND
Posts: 104



WWW

Ignore
« Reply #59 on: July 13, 2010, 02:40:20 PM »

and more progress today









Logged
Pages: 1 2 3 [4] 5 6 7 8 9 10 11 12 13 14 15 16 17 18   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 August 29, 2017, 12:44:39 AM