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Tony oily bike
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« Reply #15 on: January 05, 2016, 01:09:35 PM » |
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Rear wheel detail
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There's nowt as light as a hole, so add lightness.
Our lady of blessed acceleration, don't fail me now! - Elwood Blues
Nitro doesn't add power, it multiplies it! Bob Loux, running 10.07 secs @138mph on a 650 normally aspirated Triumph drag bike in 1965!
"Incontinence Hotline" - please hold.
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Tony oily bike
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« Reply #16 on: January 05, 2016, 01:10:32 PM » |
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Back on the bench
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There's nowt as light as a hole, so add lightness.
Our lady of blessed acceleration, don't fail me now! - Elwood Blues
Nitro doesn't add power, it multiplies it! Bob Loux, running 10.07 secs @138mph on a 650 normally aspirated Triumph drag bike in 1965!
"Incontinence Hotline" - please hold.
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Tony oily bike
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« Reply #17 on: January 05, 2016, 01:11:45 PM » |
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Revised intake route.
Fuel lines to be fitted.
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There's nowt as light as a hole, so add lightness.
Our lady of blessed acceleration, don't fail me now! - Elwood Blues
Nitro doesn't add power, it multiplies it! Bob Loux, running 10.07 secs @138mph on a 650 normally aspirated Triumph drag bike in 1965!
"Incontinence Hotline" - please hold.
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Tony oily bike
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« Reply #18 on: January 05, 2016, 01:13:31 PM » |
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The Norton gearbox.
the gear-change lever, Andy made this from a lump of ally.
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« Last Edit: January 05, 2016, 10:49:45 PM by Tony oily bike »
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There's nowt as light as a hole, so add lightness.
Our lady of blessed acceleration, don't fail me now! - Elwood Blues
Nitro doesn't add power, it multiplies it! Bob Loux, running 10.07 secs @138mph on a 650 normally aspirated Triumph drag bike in 1965!
"Incontinence Hotline" - please hold.
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Tony oily bike
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« Reply #19 on: January 05, 2016, 01:17:40 PM » |
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More detail of the blower's intake.
When Andy ran this up for the first time, an issue arose with respect to the inlet hose, which he says has now been resolved.
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There's nowt as light as a hole, so add lightness.
Our lady of blessed acceleration, don't fail me now! - Elwood Blues
Nitro doesn't add power, it multiplies it! Bob Loux, running 10.07 secs @138mph on a 650 normally aspirated Triumph drag bike in 1965!
"Incontinence Hotline" - please hold.
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Tony oily bike
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« Reply #20 on: January 05, 2016, 01:19:34 PM » |
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Another view of the supercharger
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There's nowt as light as a hole, so add lightness.
Our lady of blessed acceleration, don't fail me now! - Elwood Blues
Nitro doesn't add power, it multiplies it! Bob Loux, running 10.07 secs @138mph on a 650 normally aspirated Triumph drag bike in 1965!
"Incontinence Hotline" - please hold.
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the coppersmith
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« Reply #21 on: January 05, 2016, 05:40:19 PM » |
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Fascinating, I will of course be looking out for it at Brighton. Great bit of work. Puts the Great in Great Britain
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minimutly
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« Reply #22 on: January 05, 2016, 06:01:07 PM » |
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I would junk the tea strainer and fit a K&N.
I can't think of anything else I could improve....
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Mendalot
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« Reply #23 on: January 05, 2016, 06:42:30 PM » |
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Excellent build, great to see old time brazing being employed. How do you calculate the fuel mixture with a blower?
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Precision Guesswork ......... What else do you need?
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Dslam
Sr. Member
Karma: 13
Posts: 457
Wot ho chaps, its bloody Whitworth!!
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« Reply #24 on: January 05, 2016, 07:56:11 PM » |
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Thanks Tony, it would have taken me ages to put that lot up.
The tea strainer is fitted for shape rather than filtration although it will stop a stone but little else. At speed with a blower and the angle of the carb you run the risk of cavitation with a closed end K&N type filter. The curved shape of the trumpet allows for a smoother, less restricted/turbulent airflow. It is possible that the blower would suck a K&N out of shape too. In addition, I prefer the look. Function and form all in one hit. Thanks for the comment though.
Rule of thumb is between 6 to 8 to 1 air/fuel mixture (seems that there are differing opinions on this and like most engines requirements vary due to losses through the inlet tract) as apposed to 14-1 Air/petrol. The reality is drill a 1/4" main jet and shorten the needle then see what happens.
I was really lucky in that the motor was run some years ago by a good mate and he advised where to start. With Methanol you have about a 30% window and can run quite rich. As the blower is pumping air/fuel mixture rather than air you need volume of fuel. The carb can deliver up to 1000cc of fuel per second with the blower delivering up to 16psi, dependant on revs. Fuel efficient she ain't! Should be ample for my needs. The blower is a 'rootes' type and suffers some losses across the rotor tips but as it sucks fuel/air this reduces the losses, aids vaporisation and cools the charge. The Aisin was used as a shorrocks C75's are so expensive to buy. I can buy 5 Aisin's for the price of one Shorrock.
A small correction with the 'powder coat' statement. The frame was painted by me in Cadbury's purple. A light primer coat and a light top coat. If the frame cracks anywhere you can see it whereas powder can hide it until it has grown or moved.
I will put some more piccies up when it is finished. Some changes to the blower drive and inlet manifold between carb and blower have been done.
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« Last Edit: January 06, 2016, 08:27:15 AM by Dslam »
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scannerzer
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« Reply #25 on: January 05, 2016, 08:40:18 PM » |
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tis a work of art gentlemen ...well done
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Tony oily bike
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« Reply #26 on: January 05, 2016, 10:52:10 PM » |
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Thanks Tony, it would have taken me ages to put that lot up.
A small correction with the 'powder coat' statement. The frame was painted by me in Cadbury's purple. A light primer coat and a light top coat. If the frame cracks anywhere you can see it whereas powder can hide it until it has grown or moved.
Opps, now I remember, bit of a 'senior' moment.  |
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There's nowt as light as a hole, so add lightness.
Our lady of blessed acceleration, don't fail me now! - Elwood Blues
Nitro doesn't add power, it multiplies it! Bob Loux, running 10.07 secs @138mph on a 650 normally aspirated Triumph drag bike in 1965!
"Incontinence Hotline" - please hold.
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Manky Monkey
Administrator
Hero Member
Karma: 264
Posts: 55102
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« Reply #27 on: January 06, 2016, 09:40:41 AM » |
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Beautifully done. My brother, Mr Brock, builds drag cars, so I appreciate how much thought & work go into even the smallest parts. Tis indeed a thing of beauty.
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On the last freedom moped out of Nowhere City.
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Tony oily bike
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« Reply #28 on: January 06, 2016, 05:32:22 PM » |
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Went and visited Mr dslam today, and here are some pics he gave me.
The inlet from the carb to the blower was black braided hose (2" dia) - This has now been replaced with the nice shiny stuff you see here. Cut/shut/welded by Andy from two standard 90 degree components.
I'll let Andy explain the whys & wherefores
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There's nowt as light as a hole, so add lightness.
Our lady of blessed acceleration, don't fail me now! - Elwood Blues
Nitro doesn't add power, it multiplies it! Bob Loux, running 10.07 secs @138mph on a 650 normally aspirated Triumph drag bike in 1965!
"Incontinence Hotline" - please hold.
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Tony oily bike
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« Reply #29 on: January 06, 2016, 05:33:26 PM » |
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And this time viewed from the other side
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There's nowt as light as a hole, so add lightness.
Our lady of blessed acceleration, don't fail me now! - Elwood Blues
Nitro doesn't add power, it multiplies it! Bob Loux, running 10.07 secs @138mph on a 650 normally aspirated Triumph drag bike in 1965!
"Incontinence Hotline" - please hold.
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