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Hey guys, just wanted to know why high lift camshafts lead to more vibes??sayin so in context to hh cbz xtreme and honda unicorn..Also where can one find a mechanic in delhi to do the complicated job of porting??also does porting reduce engine life??
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If U haven't Seen GOD, U haven't gone fast enough -
Query Moved and Approved.:) -
There's nothing called porting in 4 strokes
"Engine tuning is not an exact science, but with some practice and patience you'll get comfortable with your skill and be able tune for any conditions mother nature throws at you"
Still the Boss -- RX 135Comment
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First of all totally untrue!! Vibes on the Xtreme can be due to various other reasons.Originally posted by shubhanker View Post
What made u conclude that a hi-lift cam increases vibes? Try using the Xtreme cam on the Uni, am sure there will not be any vibes!Democracy is when 2 wolves and a sheep meet to decide who is for dinner. Liberty is when the sheep has a gun.Comment
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Really? Then how does the charge come into the combustion chamber, without ports?Originally posted by psycho 98 View PostThere's nothing called porting in 4 strokes
Porting is a very complex method of improving the gasflow, however the methodology changes from 2-strokes to 4-strokes.
How many times havent I mentioned "changing the port geometry" in my build posts. So what is it if its not porting mate?
Porting has to be done right, else you'll loose on velocity and cause flow losses. You simply cant enlarge a port without any clue.sigpic
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joel "changing the port geomatry" did u mean making them bigger just to accomodate a bigger valve or u altered the vavle motion in any dimension .. ?? are they moving on the same axis or there is any change in that ??Comment
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Check this attachment..
I have a video of a 6 axis porting machine and trust me, its a treat to watch it work...TVS 50 XL -> 125 XXL : TVS VICTOR GL : YAMAHA R15-S : YAMAHA FZ1n :: KTM RC 390Comment
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i am sorry please pardon my ignorance but could you please point the differences in the photo above.`Originally posted by karthik_R View Post|NO WHEELS|Comment
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^^+1
Ya being a n00b even I wasn't able to figure out the difference!Comment
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^^+1
Can you please explain?Comment
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i read on the internet that using high lift camshafts increases a little bit of vibes...also r the rocker arms and valve assembly the same for cbz xtreme and unicorn??If U haven't Seen GOD, U haven't gone fast enoughComment
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i am sorry please pardon my ignorance but could you please point the differences in the photo above.^^+1
Ya being a n00b even I wasn't able to figure out the difference!Look at the edges of the port near the opening on the right one, theres a step which gradually forms the wall of the port, whereas the one on the left has been milled to remove that.^^+1
Can you please explain?
I've re-attached the pic , hope it makes sense now.
TVS 50 XL -> 125 XXL : TVS VICTOR GL : YAMAHA R15-S : YAMAHA FZ1n :: KTM RC 390Comment
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thanks a lot that really explains it all and now the difference is visible. the width of the walls around have a big difference.Originally posted by karthik_R View PostLook at the edges of the port near the opening on the right one, theres a step which gradually forms the wall of the port, whereas the one on the left has been milled to remove that.
I've re-attached the pic , hope it makes sense now.|NO WHEELS|Comment
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Yes i too got the difference.
Damn I have poor observation?Comment
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High lift cam on the extreme causes the engine to produce more power/torque. Hence, the vibes magnify too.Your biking tells a lot about the person you are!Comment
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