« previous next »
Pages: [1]   Go Down

Author Topic: Technical comic relief  (Read 3818 times)

Rough Edge racing

  • Guest
Technical comic relief
« on: July 25, 2016, 07:34:13 AM »
 The dual 650 Triumph engine land speed racing bike I've been building is nearly finished. Built from a pile of parts ,many cannibalized from Suzuki and Harley....Two 1956 Triumph 650 engines that will make about 65 HP each@7300 ...Harley 5 speed trans, clutch and electric starter. Custom made frame ,ZR rated radial tires...The exhaust is just for looks, I just started fabricating the real pipes.
 1350 CC gas push rod records are from 150-172 MPH at the various tracks...
  Here I'm demonstrating the electric start feature. The front engine left cylinder fires 5 degrees before the left rear cylinder so it's like a 1300cc Triumph so to speak... Most LSR bikes and all vintage LSR bikes require a hand held remote starter...I want the rider to be able to push a button, just like a street bike,  :wink:  The engine have compression...

      https://www.youtube.com/watch?v=vNbs--dBGr4
« Last Edit: July 25, 2016, 07:36:01 AM by Rough Edge racing »
Logged

Offline Xlratr

  • Gaggle Mentor
  • ****
  • *
  • Posts: 858
  • (ex) Stelvio NTX, '78 Honda 750F2, '97 FXDWG
  • Location: near Hamburg, Germany
Re: Technical comic relief
« Reply #1 on: July 25, 2016, 09:55:00 AM »
Very very cool!  :cool:
Logged
John

I ain't too young to realize, that I ain't too old to try ...

Offline Petrus Rocks

  • Gosling
  • ***
  • *
  • Posts: 370
Re: Technical comic relief
« Reply #2 on: July 25, 2016, 01:48:44 PM »
It's a wonderful experience in the flesh! :thumb:
Logged

Offline Triple Jim

  • Gaggle Hero
  • *****
  • Posts: 5930
    • Lakeland Services Company
  • Location: North Central North Carolina
Re: Technical comic relief
« Reply #3 on: July 25, 2016, 02:16:15 PM »
Very nice, but you scared me right at the end when your smile disappeared suddenly.   :laugh:
Logged
When the Brussels sprout fails to venture from its lair, it is time to roll a beaver up a grassy slope.

Rough Edge racing

  • Guest
Re: Technical comic relief
« Reply #4 on: July 25, 2016, 04:04:21 PM »
Quote from: Triple Jim on July 25, 2016, 02:16:15 PM
Very nice, but you scared me right at the end when your smile disappeared suddenly.   :laugh:

  My wife shot the video and said it appeared I took a knife in the back at the end of the video....We did about 6 takes because we got distracted by laughing..Might have caused a nervous tic or I'm really strange........... :grin:
Logged

Offline balvenie

  • Gaggle Hero
  • *****
  • Posts: 2052
Re: Technical comic relief
« Reply #5 on: July 25, 2016, 06:56:37 PM »
Please Sir; I want More :grin:
Logged
Oz
04 Cali
As ye practice, so do ye teach.

Rough Edge racing

  • Guest
Re: Technical comic relief
« Reply #6 on: July 25, 2016, 07:14:49 PM »
   


   Home built offset sprocket

   

   Building the primary drive using modified Triumph and Harley parts

     

     
       Aligning the parts....

   


     What the air sees....

     
« Last Edit: July 25, 2016, 07:17:57 PM by Rough Edge racing »
Logged

Offline 80CX100

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • Posts: 1435
  • Location: Ontario, Canada
Re: Technical comic relief
« Reply #7 on: July 25, 2016, 08:03:58 PM »
Wow, some amazing fabricating skills went into that,,, beauty!


Kelly
Logged
2008 California Vintage
2003 V11 Lemans
2007 Griso 1100
1979 G5 & 1980 Lemans CX100
2010 Suzuki DR650 & 1978 SR500

In a time of universal deceit, telling the truth becomes a revolutionary act. George Orwell

Offline Rick4003

  • Gaggle Mentor
  • ****
  • Posts: 508
  • Location: Denmark
Re: Technical comic relief
« Reply #8 on: July 25, 2016, 08:22:44 PM »
Very cool project!

How do you keep all your primary chains tight? It must rattle like crazy if they don't have some chain guides or something :grin:

More pictures please! :grin: Always nice to see the ideas and solutions that's going in to a build like this!

What kind of speeds are you aiming at with the bike?

-Ulrik
Logged
Moto Guzzi 850 T5 (850 sport) - 1985
Moto Guzzi Ambassador - 1967
Yamaha FZR 600 - 1996 - SOLD

Offline arveno

  • Gaggle Hero
  • *****
  • Posts: 1750
    • ddleathers.com
Re: Technical comic relief
« Reply #9 on: July 25, 2016, 09:01:38 PM »
« Last Edit: July 25, 2016, 09:14:05 PM by arveno »
Logged

Offline Tom

  • Gaggle Hero
  • *****
  • *
  • Posts: 28757
Re: Technical comic relief
« Reply #10 on: July 25, 2016, 09:18:52 PM »
Looks like some serious fun.  :thumb:
Logged
From the Deep Deep South out in left field.  There are no stupid questions.  There are however stupid people asking questions.  🤣, this includes me.  😉 Hawaii.

Offline balvenie

  • Gaggle Hero
  • *****
  • Posts: 2052
Re: Technical comic relief
« Reply #11 on: July 25, 2016, 10:44:02 PM »
Mr. Rough Edge racing,
Thankyou very much, that was great :thumb: :thumb:
"Aligning the parts"       I'll bet that was.............str essful :grin:
Logged
Oz
04 Cali
As ye practice, so do ye teach.

oldbike54

  • Guest
Re: Technical comic relief
« Reply #12 on: July 25, 2016, 11:39:21 PM »
 Jim , what kind of internal components are you installing ? I'm a bit out of the loop on Triumphs these days . Running Hepolite pistons , maybe old JoMo cam profiles , or something more modern . What about primary balance , 70% range maybe ? Connecting rods  , the OEM rods were pretty good , but sustained 7300 RPM's might strain them . Valve sizes , guides ? Supposedly the engines in The Gyronaut were producing 70 HP apiece , but Leppan had a good size budget .

 Dusty
Logged

Offline rodekyll

  • Gaggle Hero
  • *****
  • Posts: 21218
  • Not my real name
Re: Technical comic relief
« Reply #13 on: July 26, 2016, 12:15:16 AM »
Amazing bit of work!

Just curious -- why primary chain rather than belts? 
Logged

pete roper

  • Guest
Re: Technical comic relief
« Reply #14 on: July 26, 2016, 01:13:18 AM »
I dips me lid!
Logged

Rough Edge racing

  • Guest
Re: Technical comic relief
« Reply #15 on: July 26, 2016, 05:19:12 AM »
 Dusty, it's Tony,lol....The engines have nitrided stock 1960's cranks, MAP forged steel connecting rods, 10.5 forged piston with a tight quench, Kibblewhile valves and beehive springs, Smith bros  steel push rods, Web camshafts, mild head reworking, Mikuni 34 MM flatslide carbs...Leppan's engines were 750's on alcohol...For his best runs they ran on 80 percent nitromethane and made about 100 HP each. My engines are a bit conservative for reliability ...
 I chose chains because I understand them and they cost a lot less than belts and custom pulleys...The second naked bike in LSR history to break 200 mph was a dual engine Triumph in 1970. My chain drive is a very similar design to that bike...There will be a chain guard as required by the rules
  I discussed the bikes with Kyle of LowBrow Customs... Being a bike shop his bike is also advertisement and a show machine and looks it . My goal was a machine built primarily with hand held tools and an old lathe by a retired electrician in a typical home shop There were no plans other than mental pictures..
  The actual cost of parts and engine machine work is about 15,000 bucks. My rider pays for 90 percent, I provide all the free labor... :grin:
 A few years back we bought the 85 Guzzi California to build it into a 160 mph naked frame LSR bike...There are several running that fast....But my rider persuaded me to build a two engine Triumph powered bike....There's an attraction to these antique lumps...
   
   
Logged

Offline chuck peterson

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • Posts: 5351
  • Location: New Haven CT
Re: Technical comic relief
« Reply #16 on: July 26, 2016, 06:34:56 AM »
What a proud papa... :weiner:
Logged
"I'd like to thank all my friends who have kept my Guzzi's going, but mostly...TOMB."
150k on Verts
750 Nevada
400f
R5 Yammie
BV250
4x 1976 Moto Demm Smily,, now 5, oops now 6, oops now 7
1980 SP1000 in little bits and pieces

Rough Edge racing

  • Guest
Re: Technical comic relief
« Reply #17 on: July 26, 2016, 08:48:34 AM »
Quote from: chuck peterson on July 26, 2016, 06:34:56 AM
What a proud papa... :weiner:

  Yeah, twins  :grin:   The 50's engine cases are pretty much the same as when the engine was introduced in 1938 as a 25 hp 500 cc twin...And in 1983 when Triumph ceased production the head and internal parts used the same 1930's technology... Just like the wide spaced valves and deep hemi chamber on Guzzis , Ducati bevel twins and pre Evo Harleys...
Logged

Offline Triple Jim

  • Gaggle Hero
  • *****
  • Posts: 5930
    • Lakeland Services Company
  • Location: North Central North Carolina
Re: Technical comic relief
« Reply #18 on: July 26, 2016, 08:53:36 AM »
I don't know how you can get anything done without being able to spit on the floor and walls.
Logged
When the Brussels sprout fails to venture from its lair, it is time to roll a beaver up a grassy slope.

oldbike54

  • Guest
Re: Technical comic relief
« Reply #19 on: July 26, 2016, 10:27:24 AM »
 Are you sure it isn't Jim ? :laugh: Sad part , I know it is Tony , may be overwhelmed by the sight of a home built Triumph powered ground shaker  :bow:

 Thanks for the specs , and the chain primary makes sense on this type of bike , being capable of handling high power in a fairly compact package . Not like this bike is gonna do touring duty  :laugh:

 Dusty
Logged

Offline Xlratr

  • Gaggle Mentor
  • ****
  • *
  • Posts: 858
  • (ex) Stelvio NTX, '78 Honda 750F2, '97 FXDWG
  • Location: near Hamburg, Germany
Re: Technical comic relief
« Reply #20 on: July 26, 2016, 02:23:46 PM »
Are the two engines set up identically or does the rear have different fuel requirements? This is a great thread, I hope you can keep it updated!   :thumb:
« Last Edit: July 26, 2016, 05:10:24 PM by Xlratr »
Logged
John

I ain't too young to realize, that I ain't too old to try ...

Rough Edge racing

  • Guest
Re: Technical comic relief
« Reply #21 on: July 26, 2016, 04:51:13 PM »
Quote from: Xlratr on July 26, 2016, 02:23:46 PM
Are the two engines set up identically or does the rear have different fuel requirements? This is a great thread, I hope you can keep it updated!  :weiner:

  The rear engine  has .0005 inch more cylinder to piston clearance than the front....The rear possibly having a different fueling requirement is an interesting question... ...The basic tuning will be similar to my successful single 650 Triumph LSR bike. The guys who ran these combos in their 50's-60's heyday say very little, same for the very few running them now... I'm literally on my own with tuning and design...Back to the fueling, perhaps the "concealed" rear engine might want to be jetted a touch richer for it's cooling effect...it's all a guess...
Logged
***Wildguzzi Official Logo High Quality 5 Color Window Decals Back In Stock***
Shipping in USA Only. Awesome quality. Back by popular demand. All proceeds go back into the forum.
Best quality vinyl available today. Easy application.
Advertise Here
Pages: [1]   Go Up
« previous next »
 


NEW WILDGUZZI PRODUCT - Moto Guzzi Door Mat
Receive donation credit with door mat purchase!
Advertise Here