locopony
Loquacious
Reged: 09/01/10
Posts: 4353
Loc: Texas, Houston
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I made a deal yesterday to work with a carb company to develope an intake manifold and single carb for our bikes. He seems to think we can get a better, and more flow than the two CVKs can. We discussed the limitations of the CVKs and why they can never be a high performance carb.
We shall see how it works out.
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Bopin in the bad shine, with a bota bag of fried wine.
http://locoponys.com/
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B02S4
Learned Hand
Reged: 02/28/08
Posts: 1568
Loc: USA
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Quote:
...We discussed the limitations of the CVKs and why they can never be a high performance carb.
...
Good luck with your project, although I disagree with the above opinion.
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Ryk
Learned Hand
Reged: 05/19/10
Posts: 1668
Loc: Pac. NW
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Why wouldn't a single CVK work? Like the Tiger s (TR 6,7 s) of old. Only one cylinder fires at a time.
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locopony
Loquacious
Reged: 09/01/10
Posts: 4353
Loc: Texas, Houston
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The limits .....well, that woud be a lengthy and indepth conversation. Basically the vacuum operated slides cause a slow response time. The needle and jett combos even with the pilot jets actually do leave a lot of areas for compromise, not to mention that the slider causes turbulent flow. All making for limitations when trying to maximize out put potential.
Not exactly, the flow limitations would leave ya starving the bike when it comes to performance. We are looking to gain as much flow as possible.
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Bopin in the bad shine, with a bota bag of fried wine.
http://locoponys.com/
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bigbill
Worn Saddle
Reged: 01/11/05
Posts: 6153
Loc: Las Vegas, Nevada
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A single carb can actually get you better performance on the 360° engines. It'll be interesting to see how it works on a 270°.
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"The whole problem with the world is that fools and fanatics are always so certain of themselves and wiser people so full of doubts." ~ Bertrand Russell
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roadworthy
Old Hand
Reged: 08/29/07
Posts: 8908
Loc: St Louis MO
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So what would you run, a 45mm or bigger single carb?
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I stopped fighting my inner demons. We're on the same side now.
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bigbill
Worn Saddle
Reged: 01/11/05
Posts: 6153
Loc: Las Vegas, Nevada
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You would probably run something close to what you use with dual carbs, depending on other mods. The main advantage will be a smoother, more constant air flow; as well as not having to sync them.
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"The whole problem with the world is that fools and fanatics are always so certain of themselves and wiser people so full of doubts." ~ Bertrand Russell
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locopony
Loquacious
Reged: 09/01/10
Posts: 4353
Loc: Texas, Houston
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We have a lot to work out yet. How big the ports are, how much vacuum the cylinders pull, how long the intake tubes are going to have to be, what the actual cam duration is, along with other factors. I'm going over to his shop Monday to get some measurements and do some tests.
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Bopin in the bad shine, with a bota bag of fried wine.
http://locoponys.com/
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The_Dog33
Fe Butt
Reged: 02/01/07
Posts: 17042
Loc: NE PA USA
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I always like the single carb bikes better on the old stuff.
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I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
some shots of our bikes
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arstaren
Loquacious
Reged: 07/23/07
Posts: 3510
Loc: Southeast ,Iowa, USA
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Quote:
I always like the single carb bikes better on the old stuff.
Yep, me too. Easier to maintain, no synch, and the performance gain from the old double carb was minimal.
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Fidelis et Fortis
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