Rorty
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| posted on 3/10/05 at 11:30 PM |
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Crank case vent valves.
Anyone care to comment on these Krank Vents?
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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gazza285
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| posted on 3/10/05 at 11:47 PM |
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I understand the theory that they are working with, after all many a dry sump system can run a partial vacuum in the crank case, but these use an
active pump to achieve this. In a situation with zero ring leakage it sounds like an ideal setup. As this is impossible I would tend to think of such
things as bullshit baffles brains engineering.
DO NOT PUT ON KNOB OR BOLLOCKS!
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Rorty
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| posted on 4/10/05 at 12:53 AM |
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I'm not an engine expert and was just curious, but I was thinking along the same lines.
Although, I've seen big V8 drag engines with a flapper valve on each header bank which are supposed to suck the crank cases clear at high revs.
They usually know their onions, but maybe it's a different scenario.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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gazza285
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| posted on 4/10/05 at 01:14 AM |
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Sounds like they are utilising the good old venturi effect to create a depression in the crankcase. I don't suppose they worry much about a
little oil in the exhaust gas. I presume that as well as rebuilding the engine between runs the oil level is checked as well.
DO NOT PUT ON KNOB OR BOLLOCKS!
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G.Man
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| posted on 4/10/05 at 05:31 AM |
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Looks like a stock crankcase breather from a car adapted for a bike...
ie recycles the crank fumes into the intake...
The turbo version works identically to that on my cossie motor...
Opinions are like backsides..
Everyone has one, nobody wants to hear it and only other peoples stink!
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jimgiblett
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| posted on 4/10/05 at 08:44 AM |
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I had one of these on my old engine. Never did a before / after dyno test but if there was a gain it was minimal. The main advantage it gave was
reduced oil breathing / consumption.
I've got one in the garage if anyone wants to make me an offer ?
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