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Re: alp's 200mph pre-unit triumph
kevin #729122 03/19/18 2:54 am
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...the thing is a work of art and still looks Triumph not like the Velocette in the Pub s thread.
He says that is all based on ideas; for sure and this streamlined has plenty but also rely on Nitro; with a bike with 2 valves (4) without fairing and nitro you cannot do too much; all was done.
I am not a fan of these rockets but still this one is ok but most are not motorcycles; are just a rocket with 2 wheels.

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Re: alp's 200mph pre-unit triumph
kevin #753417 10/20/18 11:29 am
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[Linked Image]

what's he doing now?

from USFRA, 09/14/2018


every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #753418 10/20/18 11:42 am
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Kevin, not what he is doing but what he did....

[img]https://scontent-lga3-1.xx.fbcdn.ne...909900b4047a632b2b6991fe&oe=5C41E62D[/img]


79 T140D, 96 900M Ducati ....On a bike you can out run the demons..
Re: alp's 200mph pre-unit triumph
kevin #753420 10/20/18 11:52 am
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i thought he did that with the alien bike.

guess i wasn't paying attention.


every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #753423 10/20/18 12:01 pm
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.Alp is very good with nitro engines.... It would be interesting to see how it goes tuned for gasoline. At any rate, we thought the speed was the alien bike design....looks like the speed is in the engine,or at least in the fuel mix...


79 T140D, 96 900M Ducati ....On a bike you can out run the demons..
Re: alp's 200mph pre-unit triumph
Hillbilly bike #753435 10/20/18 2:18 pm
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well, if can do 177 with the one in the photograph. 200 on the streamliner is probably doable on a good day.

or maybe any day.


every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #753463 10/20/18 10:25 pm
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here is the source of my confusion. his first 170+ record was with the alien bike, except he used the large single tank he occasionally ran in earlier machines instead of the two narrow ones he apparently used to set all the AVF records. i guess because he needed so much fuel. sometimes there's a rear wheel disk, sometimes there isn't:

[Linked Image][Linked Image]

the second nitro machine appears to use the frame and fuel tank he originally had on his first production-frame bike, the one that had the 1930's girder front end and spoked wheels:

[Linked Image]

that one morphed into the manta, i believe, MVG:

[Linked Image]

and maybe into the recent nitro bike-- 756? maybe just the frame? both are 1950 pre-units:

[Linked Image]

the alien bike is in a museum for a year somewhere, and so currently he's running the streamliner and this other nitro bike. . . . .the number is 756, so it appears to be the reincarnation of the old 756 manta, which was the old 100 original. . . . the alien and the streamliner too (i think, i'm not sure anymore) are sometimes shown without the rear wheel disk, and have the same tri-spoke rear wheel as the new nitro bike and the RC Components front wheel, which are also used by tyler and kyle malenky.but then he appears to use the same numbers on different machines. dunno how that works

[Linked Image]

his new bike is faster than stink, with the head reversed like the streamliner, but hasn't done the two-way average yet to match the nitro alien.

but he'll do it. it appears he can eventually do anything he wants to. the guy's a fucking genius.

Last edited by kevin roberts; 10/23/18 10:05 pm.

every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #753472 10/20/18 11:40 pm
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So have you flipped the head around yet?


79 T140D, 96 900M Ducati ....On a bike you can out run the demons..
Re: alp's 200mph pre-unit triumph
kevin #753474 10/21/18 12:49 am
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lol

i was thinking about the magneto drive just tonight, whether the cams were symmetrical.

not doin it yet. i think i still have gains to make in chassis and rider flexibility. after i can bend myself into a pretzel i'll think about a backwards head.

it would sure solve intake clearance issues, though.


Last edited by kevin roberts; 10/21/18 12:54 am.

every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #753498 10/21/18 12:08 pm
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I think the Sifton 390 cams in my bike are symmetrical, but would have to check to be sure...So flip around the head, retime the cams, fabricate exhaust pipes...And away we go.....
But........But my original idea was using as many Triumph parts as possible to keep the bike a "Triumph"....I might be the only guy still using a stock primary/clutch ,lol.I was really reluctant to replace a Triumph fuel tank with tube tanks..Once the head is flipped, late model wheels, aero devices,and so on.....It's my opinion the concept of Modified Production is lost...


79 T140D, 96 900M Ducati ....On a bike you can out run the demons..
Re: alp's 200mph pre-unit triumph
kevin #753532 10/21/18 10:54 pm
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i like the idea of modified production too, but it's a really slippery concept, if we're meaning street-based hotrods. what people consider "modified" isn't a standard picture. probably tom's hornet and chris's A10 are least ambiguous, with side covers, a stock tank, front brake, hot rod seat, and so on. stuff you would have to have to be street legal.

but do you need a charging system? lights? pump gasoline? mudguards? decibel limits? motor, tank, forks, and wheels from a matching year frame?

my bike is made up of stuff that spans 50s, 60s, and 70s . . . maybe 80s, too, if the front end is that new. where's the line?

in the end, i think we're all just realizing a vision of what we would most like to run at the track, and we're all fitting into "modified production" mostly because the category is so vague. SCTA is lots clearer, with only production and modified. but then there's no middle ground for people like us, who generally share the same picture.


every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #753547 10/22/18 12:25 am
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Four years ago the lump had a charging system ..but no kick stand.... Then it got a kick stand and no charging system...Fictitious license plate of course.....

[Linked Image]


79 T140D, 96 900M Ducati ....On a bike you can out run the demons..
Re: alp's 200mph pre-unit triumph
Hillbilly bike #753554 10/22/18 2:04 am
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i have a title for mine.

for 40 bucks i could race with license plates.

lol

lights would take a lot more work.


every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #753581 10/22/18 10:44 am
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Notice the AMAL carbs, velocity stacks and K&N filters...It ran 120 at Ohio as you see it with a stock T120 head....The32mm Amals were too rich with a 270 main jet but smaller jets made the engine misfire at high rpms...I believe now the Pazon Surefire was unable to fire a .028 plug gap at 7000 rpm with a leaner jet


79 T140D, 96 900M Ducati ....On a bike you can out run the demons..
Re: alp's 200mph pre-unit triumph
kevin #753585 10/22/18 11:53 am
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I believe a leaner mixture has a slower burn time??


beerchug

(Display name changed for cyber security reasons)

Re: alp's 200mph pre-unit triumph
kevin #753632 10/22/18 7:43 pm
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Lean at part throttle, yes...Before maybe the late 1990's it was typical of automotive carbs and Fuel injection to use a 16-1 or so mixture at part throttle.. The lean mixture required as much as 55 degrees total advance to burn completely depending on several factors..The extra advance was added with a vacuum servo(points and some EI )or electronically at light load/high intake vacuum..
At larger throttle openings I believe different stuff is going on...And the lean mixture will primarily cause a misfire, hesitation and or detonation at the normal advance timing curve...Pazon suggested a Smartfire if I wanted to run wider plug gaps..I did that and no more misfiring, but the engine was tuned differently...


79 T140D, 96 900M Ducati ....On a bike you can out run the demons..
Re: alp's 200mph pre-unit triumph
kevin #753649 10/22/18 10:06 pm
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i run little tiny plug gaps, 0.018. but i have four of them.


every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #753657 10/22/18 10:51 pm
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Wider gaps can help mask reversion or lean hesitation if the ignition has energy to fire them..Longer duration spark can do the same. Some say magnetos have a long spark duration...Some engines may make a bit more power with a wider gap..
Your Buell engine has a vacuum device to advance timing at light engine loads..


79 T140D, 96 900M Ducati ....On a bike you can out run the demons..
Re: alp's 200mph pre-unit triumph
kevin #753661 10/22/18 11:38 pm
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spark gap and duration is one of those things that fascinate me. does a big flame kernel that's harder to fire balance a little tiny one that shoots earlier and more reliably?

morris magnetos and joe hunt magnetos are modern and better-built clones of the old fairbanks morse units.

can my pazon do this?

skip to 5:48



it's interesting to me that the fastest triumph LSR machines all run points-magneto ignitions.


every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #753664 10/22/18 11:59 pm
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The fastest Triumphs also have the highest build cost.. wink grin


79 T140D, 96 900M Ducati ....On a bike you can out run the demons..
Re: alp's 200mph pre-unit triumph
kevin #753665 10/23/18 12:21 am
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[***], yes.

don't bring that up.


every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #759474 12/16/18 4:04 pm
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interesting looking at an MPS like alps in a wind tunnel. this is from 2011. look at how the air stays stuck to the rider's back all the way from his helmet to the end of the machine. hardly any turbulence back there to suck him backwards. there's a layer of turbulence all around the sticky-out bits of the rider about 4 inches thick, then the flow goes laminar again in an envelope. that just makes the total frontal area bigger by 4 inches all the way around. if they had constrained the rider to a tighter position they could reduced the drag even more, but it might have made the machine more difficult to control.





every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #759547 12/17/18 5:39 am
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Alp twists his shoulders sideways to narrow his profile and so also the profile of his whole bike.

Re: alp's 200mph pre-unit triumph
kevin #763353 01/24/19 1:23 am
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Quote
Alp Racing & Design je s Marinom Pernom a 19 ďalšími.
26. decembra 2018, 11:17 ·
WANTED!!
Please share.
Looking for an original 1948-1955 Vincent twin engine/cases in good condition, or maybe a basket.

If you have - or come across - something along these lines, please let me know. Willing to travel for pick up, but would like to see images beforehand. Any lead that will close a deal will be awarded 10%. Contact by dm or email: [email protected] _____ Thank you, Alp - VOC#: 23491AC / K17...
Zobraziť viac


every day you do not take a chance is a day of your life that you will never get back.
Re: alp's 200mph pre-unit triumph
kevin #768558 03/19/19 1:24 pm
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heavens

i completely missed this in october. alp has qualified for bonneville's long course. he's up to 180 mph one way:

Quote
All naked and the record run ‘Timing Slip’ of the 180mph 1950 Triumph 650:

Entry of measured mile 174mph
Quarter mile 175.345mph
Average of the measured mile 177.643mph
Exiting the measured mile at 180+mph and counting.

The 650 ironhead is now qualified for the long course.
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