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alp's 200mph pre-unit triumph #691828
04/15/17 8:01 pm
04/15/17 8:01 pm
Joined: Dec 2013
Posts: 3,657
ohio, usa
kevin roberts Offline OP

fefsa
kevin roberts  Offline OP

fefsa
Joined: Dec 2013
Posts: 3,657
ohio, usa
if anybody can do it, he can.

https://www.facebook.com/alpracingd...3045/978200035616289/?type=3&theater

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]


can anybody identify this front tire? i found the wheel in a harley catalog once, it's 17 inches. (. . . and $1700!!!!)

[Linked Image]


live every day.
die once.
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #691842
04/15/17 9:21 pm
04/15/17 9:21 pm
Joined: Aug 2001
Posts: 383
Iowa
konon Online content

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Iowa
He sure knows how to work aluminum. Hope it gets him through the air wall, and to 200 MPH


1968 BSA Firebird
1200 HD
XS 1100
1972 Rickman 125
Re: alp's 200mph pre-unit triumph [Re: konon] #691867
04/16/17 12:16 am
04/16/17 12:16 am
Joined: Oct 2012
Posts: 3,358
Running from demons in WNY
Hillbilly bike Online content
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Running from demons in WNY
My LSR Triumphs are like stone axes in comparison...


650 Triumph modified production LSR record holder 133.1 MPH... Twin 650 engine Triumph LSR that goes sorta fast...
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #691970
04/16/17 9:47 pm
04/16/17 9:47 pm
Joined: Sep 2008
Posts: 730
Edgewater, Md
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Blown Income Online content

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Edgewater, Md
He has done a phenomenal job with this new bike from building the chassis to the excellent hand formed body work. I really do hope he makes the 200mph club.


1955 BSA Bantam D1 Plunger
1956 BSA A10RR Street and LSR Bike
1961 BSA C15S
1966 BSA spitfire
1969 Triumph T100C
1970 Triumph TR6R
1972 BSA Lightning LSR Bike
1974 Triumph T150V
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #696925
05/31/17 3:54 am
05/31/17 3:54 am
Joined: Feb 2011
Posts: 35
Sacramento, CA
M
mangold Offline
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Posts: 35
Sacramento, CA
Originally Posted by kevin roberts


[Linked Image]


can anybody identify this front tire? i found the wheel in a harley catalog once, it's 17 inches. (. . . and $1700!!!!)

[Linked Image]


Pretty sure it's a Goodyear "front runner" usually seen on the front wheels of drag cars.

Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #699580
06/25/17 6:16 pm
06/25/17 6:16 pm
Joined: Jan 2014
Posts: 1,649
South cone
R
reverb Offline
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South cone
...just watched a clip from Born free 9 where you see this bike finished; a few seconds but looks fantastic.

At about minute 11.

https://www.youtube.com/watch?v=7oJ69c_WR9E

Re: alp's 200mph pre-unit triumph [Re: reverb] #699582
06/25/17 7:02 pm
06/25/17 7:02 pm
Joined: Nov 2010
Posts: 2,883
Boston, Massachusetts, USA
kurt fischer Online content

#irideslow
kurt fischer  Online Content

#irideslow
Joined: Nov 2010
Posts: 2,883
Boston, Massachusetts, USA
Originally Posted by reverb
...just watched a clip from Born free 9 where you see this bike finished; a few seconds but looks fantastic.

At about minute 11.

https://www.youtube.com/watch?v=7oJ69c_WR9E


I'm waiting to see how he sits on (or in) it smile


Kurt
1968-70-71 Triumph TR6R Bitsa - 1969 Triumph TR6R - 1971 BSA A65L - 1973 Triumph TR5T
2005 Ducati MTS 1000S DS - 2012 Ducati Hyper 796 - 2014 Kawasaki ZX1000 (for sale!)
Re: alp's 200mph pre-unit triumph [Re: kurt fischer] #699587
06/25/17 7:44 pm
06/25/17 7:44 pm
Joined: Nov 2005
Posts: 756
Riverside, CA.
N
noisy norton Online content
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Posts: 756
Riverside, CA.
Originally Posted by kurt fischer
Originally Posted by reverb
...just watched a clip from Born free 9 where you see this bike finished; a few seconds but looks fantastic.

At about minute 11.

https://www.youtube.com/watch?v=7oJ69c_WR9E


I'm waiting to see how he sits on (or in) it smile



Imagine kneeling and sitting down on your heels.


God rides a Triumph but wishes it was a Norton.
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #699600
06/25/17 11:26 pm
06/25/17 11:26 pm
Joined: Nov 2009
Posts: 596
B
bon Online content
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Lovely sheet metalwork. One question though, how does the engine get cooling air ? It appears to be shrouded off completely.

Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #699604
06/26/17 12:00 am
06/26/17 12:00 am
Joined: Dec 2013
Posts: 3,657
ohio, usa
kevin roberts Offline OP

fefsa
kevin roberts  Offline OP

fefsa
Joined: Dec 2013
Posts: 3,657
ohio, usa
born free 9 at 10:54

he's got the head reversed:

[Linked Image]


live every day.
die once.
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #699626
06/26/17 4:08 am
06/26/17 4:08 am
Joined: Jan 2014
Posts: 1,649
South cone
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reverb Offline
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...is like seating on a possible time bomb.

Re: alp's 200mph pre-unit triumph [Re: bon] #699646
06/26/17 11:15 am
06/26/17 11:15 am
Joined: Nov 2011
Posts: 166
Nova Scotia, Canada
K
koncretekid Offline
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K
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Posts: 166
Nova Scotia, Canada
"One question though, how does the engine get cooling air ? It appears to be shrouded off completely."

Some people at Bonneville running methanol claim they need no additional cooling required due to the evaporative cooling effect of the fuel. I suspect it is the same with nitro - especially when you're only going to be running the thing for a minute or two.

"Imagine kneeling and sitting down on your heels"

If I did that, not only would I need two people to get me started, - - my stops would be like Artie on Laugh-in!

"...is like seating on a possible time bomb." I'll ditto that.

Tom


Life's uncertain - go fast now!
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #699650
06/26/17 12:51 pm
06/26/17 12:51 pm
Joined: Oct 2012
Posts: 3,358
Running from demons in WNY
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Running from demons in WNY
Originally Posted by kevin roberts
born free 9 at 10:54

he's got the head reversed:



It may be because of available space or "Ram Air" to the carbs or for cooling.....Back in the 1920's engineers figured out that radial air cooled aircraft engines had less problems when cooling air passed over the intake before the exhaust......Look at a photo of a Vincent engine..However, modern light plane engines don't follow this rule.... Plenty of very high power air cooled modern bike engines have the exhausts in front...


650 Triumph modified production LSR record holder 133.1 MPH... Twin 650 engine Triumph LSR that goes sorta fast...
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #699659
06/26/17 2:22 pm
06/26/17 2:22 pm
Joined: Aug 2001
Posts: 383
Iowa
konon Online content

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konon  Online Content

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Iowa
I believe the head reversal is for the exhaust design he wanted.


1968 BSA Firebird
1200 HD
XS 1100
1972 Rickman 125
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #722960
01/23/18 5:40 am
01/23/18 5:40 am
Joined: Aug 2011
Posts: 196
Hailey,Id.
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bsawood Online content

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Hailey,Id.

Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #723018
01/23/18 4:54 pm
01/23/18 4:54 pm
Joined: Dec 2013
Posts: 3,657
ohio, usa
kevin roberts Offline OP

fefsa
kevin roberts  Offline OP

fefsa
Joined: Dec 2013
Posts: 3,657
ohio, usa
couldn't pause the video easily. but:

new leathers and helmet. look like bates: $$$. same dirty old boots.
kibblewhite patch-- pushrods? tappet blocks? springs, valves?
klotz patch
webcam patch. what cam? his own grind?
stock crank. cut for cam clearance.
old cases, not those british new ones he's been using. why is that?
MAP rods . . .

what else?

still don't know the tires.

i couldn't figure out the riding position for the longest time, until it came to me a week or so ago, looking at his skeleton. that is a genuinely new idea. how does he brake? the rear brake must be functional.

only an oil pressure gauge on the left clip. he's back to running without a tach again, apparently.

rear sprocket is tiny-- 30-something. he's relying on the torque from the nitro to get him up there.

Last edited by kevin roberts; 01/23/18 5:13 pm.

live every day.
die once.
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #723055
01/23/18 11:49 pm
01/23/18 11:49 pm
Joined: Oct 2012
Posts: 3,358
Running from demons in WNY
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Running from demons in WNY
Alp told me Web grinds the cam to his specs...Going fast is all in details...


650 Triumph modified production LSR record holder 133.1 MPH... Twin 650 engine Triumph LSR that goes sorta fast...
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #723272
01/26/18 1:12 am
01/26/18 1:12 am
Joined: Dec 2013
Posts: 3,657
ohio, usa
kevin roberts Offline OP

fefsa
kevin roberts  Offline OP

fefsa
Joined: Dec 2013
Posts: 3,657
ohio, usa
compare alp's machine and effort to ack attack's bolivia run in 2010, at 394 mph



i'd ride either, but given the restriction of one or the other, i'd choose alp's. not to diminish the ack attack effort, it's just what they're doing isn't as interesting to me.

bolivia has a much longer stretch of intact course than anything in north america except edwards, which is off-limits.


live every day.
die once.
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #723277
01/26/18 2:21 am
01/26/18 2:21 am
Joined: Aug 2010
Posts: 317
New Hampshire, USA
David Dunfey Offline
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David Dunfey  Offline
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Posts: 317
New Hampshire, USA
Alp has done some very interesting design. Hilborn port fuel injection. The carbs act as air throttless at speed. They are jetted as he starts the bike on methanol for a few minutes with some QD lines. No float bowls, just gravity feed to the carb. Then switches to nitro and takes off.

Oil is total loss. It runs through the engine into a waste tank. It is part of the cooling system because no air comes through the front.

He had wobbles on three out of four runs but mostly due to ruts in the track. Not an issue. He is softening the fork and had he known the salt was this bad he would have built it with rear suspension.

The front fender and the seating position got SCTA approval. SCTA was concerned that it was a dustbin fairing.

David

Last edited by David Dunfey; 01/26/18 2:22 am.
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #723280
01/26/18 2:33 am
01/26/18 2:33 am
Joined: Dec 2013
Posts: 3,657
ohio, usa
kevin roberts Offline OP

fefsa
kevin roberts  Offline OP

fefsa
Joined: Dec 2013
Posts: 3,657
ohio, usa
it's no more a dustbin than any of the streamliners.

but i suppose in a partial class it does bring back bad memories for some people even older than me.


live every day.
die once.
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #723306
01/26/18 11:28 am
01/26/18 11:28 am
Joined: Oct 2012
Posts: 3,358
Running from demons in WNY
Hillbilly bike Online content
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Hillbilly bike  Online Content
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Posts: 3,358
Running from demons in WNY
Nitromethane needs an air fuel ratio of about 2-1 compared to about 12-1 for gasoline at full throttle..So the fuel tank becomes the float bowl so to speak...He may use total waste oil because of the fuel dilution ?


650 Triumph modified production LSR record holder 133.1 MPH... Twin 650 engine Triumph LSR that goes sorta fast...
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #724895
02/09/18 5:02 pm
02/09/18 5:02 pm
Joined: Jul 2006
Posts: 1,094
Westminster, MD, USA
J
J. Charles Smith Offline
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Joined: Jul 2006
Posts: 1,094
Westminster, MD, USA

Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #724968
02/10/18 4:05 am
02/10/18 4:05 am
Joined: Dec 2013
Posts: 3,657
ohio, usa
kevin roberts Offline OP

fefsa
kevin roberts  Offline OP

fefsa
Joined: Dec 2013
Posts: 3,657
ohio, usa
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]

Last edited by kevin roberts; 02/10/18 4:21 am.

live every day.
die once.
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #724969
02/10/18 4:08 am
02/10/18 4:08 am
Joined: Dec 2013
Posts: 3,657
ohio, usa
kevin roberts Offline OP

fefsa
kevin roberts  Offline OP

fefsa
Joined: Dec 2013
Posts: 3,657
ohio, usa
air shifter
cable-operated brake-- that was one i couldn't figure out
asymetric handlebars


a lot of thought went into this. and money. those airbrushed cutaway paintings will run two grand apiece.

notice the differences between the early and the later frames.

Last edited by kevin roberts; 02/10/18 4:14 am.

live every day.
die once.
Re: alp's 200mph pre-unit triumph [Re: kevin roberts] #725080
02/10/18 9:37 pm
02/10/18 9:37 pm
Joined: Nov 2011
Posts: 166
Nova Scotia, Canada
K
koncretekid Offline
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koncretekid  Offline
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K
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Posts: 166
Nova Scotia, Canada
Beautiful Bike, beautiful renderings, but looks hard to ride. Alp has plenty of years left to figure out the rest.
Tom


Life's uncertain - go fast now!

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