Largest Carb on a production bike?
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Largest Carb on a production bike?
I think I remember reading that the VTR has the largest carbs ever produced on a production bike.
Was that true?
And if so, is it still true?
What size are they? 48mm Flat slike Mikuni's????
Was that true?
And if so, is it still true?
What size are they? 48mm Flat slike Mikuni's????
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SuperBike
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From: Belgium, WI
I remember telling my summer boss that they were "BIG" and he brushed it off. He ran a shifter cart with a 44 and has dual 40's on his 1980 srx440. When I was doing carb work he looked at them and said, "HOLY COW, you weren't lying"
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Ok. Those are big throttle bodies.
But that's still Fuel injected. I'm talking actual carbs here.
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RK1 They're Keihins.
mikstr I beleive that is correct, but they are 48 mm CV carbs
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Yes, Keihins, but they're Flat Slide CV's.
But that's still Fuel injected. I'm talking actual carbs here.
RK1 They're Keihins.
mikstr I beleive that is correct, but they are 48 mm CV carbs
~~~~~~~~~~~~~~
Yes, Keihins, but they're Flat Slide CV's.
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i did a little research and i cannot find another production bike with a 48mm carb. does not mean they are not out there but google doesn't know of one. i did find an article saying that 48mm is about the practical limit for motorcycles.
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Superstock
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cv carbs arent directly comparable to other types, lik FCR or something. but yes 48mm is still big. i know of carbs that are larger, but not stock on production vehicles. the 42mm is largest non-cv carb on production vehicle i know of, and i would bet it performs better then our 48mm cv.
BTW Honda owns a controlling share in Keihin so they dont use Mik carbs very often. it does happen, just not often. and our 48mm's are keihin.
BTW Honda owns a controlling share in Keihin so they dont use Mik carbs very often. it does happen, just not often. and our 48mm's are keihin.
Last edited by Zedicus; Jun 16, 2009 at 06:55 AM.
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MotoGP
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As mentioned earlier, a few snowmobiles came with 44s (if you consider those vehicles...). I also recall an aftermarket snowmobile parts manufacturer building them up to 52 mm (for large-displacement custom two-stroke snowmobile engines). Now that is a big-*** carb!
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MotoGP
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You have to remember that a 48 mm throttle body wil not flow as much air as a 48 mm slide carb due to the presence (and turbulence) of the butterfly (and many new bikes even have two per throttle body). I always wondered why they never built slide-type FI systems (no butterfly to screw with airflow)...
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