Comments by "BB21 AGAIN." (@bb21again.67) on "Repairman22" channel.

@andrewpipitone1572 If this motor like so many that make big bold claims really did work as they said,they would be everywhere. The fact that no manufacturers have picked up the design just goes to show it is not delivering anything worthwhile.If you don't have a background in the automotive trade or engineering then you shouldn't be so quick to sing it'd praises.
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@Rider of the North No way does that arm weigh as little as the aluminium removed from the skirt even if it made from aluminium.
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The arm just adds dynamic mass,I can't see how it reduces friction.
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@Rider of the North The "banana arm" is connected to the gudgeon pin at one end and the bearing shaft at the other and its mass swings between the two.There is no fulcrum point with a lever lifting its mass.Draw a see-saw and now imagine the piston(load) is on one end and the hinge in the middle is the fulcrum,there is NO lever on the other end to exirt lift.
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@GSimpsonOAM Absolute rubbish, piston skirts support the crown and stop it flipping over.
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@Rider of the North The videos is self aggrandisement this engine needs independent testing. Watch driving4answer video Otto, Atkinson,Miller explained.
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@g simpson Piston skirts support the crown and stops it from flipping over.
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@Rider of the North The added weight is supported between the gudgeon pin and the other shaft,all it's mass reciprocating in the middle not fulcrumed at all.
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@Rider of the North No, the banana arm is extra dead weight that is moving alot.No I don't agree with you at all that was my point.I have stated it 3 times already.I don't think that you know what you are talking about.
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@klausbrinck2137 What a load of crap! What do you mean the piston never touches the cylinder wall,I have bored and honed out countless engines that have scored cylinders from pistons or even jammed pistons.I don't think you really know what you are talking about, what qualifications do you have in the automotive field?
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@Juan Ignacio Caino I've said everything that I need to,I doubt you have any expertise in any relevant field of engineering to make an informed judgement. A video is not solid proof of anything, the bottom line is that no cars on the market carry this engine or ever have,if you are so convinced of its merits start a company that makes them.
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@Klaus Brinck I apologise for being snarky,let's just agree to disagree, take care and have a nice day.
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@tomaspecl1082 The mass of the banana arm is still much more than the mass of the piston skirt that has been removed, so until reliable extensive and independent peer reviews and testing has been shown I have no reason to accept your speculations.Test and results not personal wishful thinking.
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@tomaspecl1082 Try watching a video by driving4answers Otto,Atkinson, Miller cycles explained 8 minutes in he will show that increased efficiency can also lead to a loss of power and he is an engineer.
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@GSimpsonOAM How do you know the drag coefficient of oil on piston skirts?
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@Klaus Brinck Watch driving4answers Otto,Atkinson, Miller cycles explained and see that efficiency sometimes comes at the expense of power which is more important and he is an engineer.
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@g simpson We use to call it boundary lubrication.
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@g simpson Which is my point,how much of a "plus"is the friction loss compared to dynamic mass gain( I assume you've balanced crankshafts?) Of banana arm and how many of these engines have you stripped down after high mileage?.For all I know they could be wonderful engines but it seems to me that everyone is jumping to conclusions on the testimony of a video aimed to sell it,and yes I know the patent has expired but just because the engine is alternative does not mean it is better.Extensive ,independent testing is needed.
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@g simpson We use to call it boundary lubrication.The minimal wear you mention is my point,the loss of skirt friction compared to the added dynamic mass gained seems to counter any increases in efficiency. Extensive and independent testing is required, not just youtubers opinions.
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@g simpson You seem to have misinterpreted my comments somehow,As I too am not convinced of the merits of this or many other "alternative" engines,perhaps I have not expressed myself well.Your credentials are substantial and impressive.
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