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can this work ???
Posted: Sun Feb 08, 2009 7:03 pm
by fishi
can this tune/porting work and is it to recommend to maximise transfer area?
or would it influence the mixture flowing/entrance when transfer are opening as the bottom transfer edge is not there ??
anybody has used it ever ??
Thankx
fishi
Re: can this work ???
Posted: Tue Feb 10, 2009 6:01 pm
by hobospeed
Re: can this work ???
Posted: Tue Feb 10, 2009 6:06 pm
by sean brady scooters
tried that link.......still not getting it.........
Re: can this work ???
Posted: Tue Feb 10, 2009 6:20 pm
by fishi
f....@@@@k PICASA !!!
sometimes pic can been seen some times not !!!
fishi
Re: can this work ???
Posted: Tue Feb 10, 2009 6:22 pm
by Avantone
Can't help feeling a well shaped passage would flow better.
Re: can this work ???
Posted: Tue Feb 10, 2009 6:25 pm
by sean brady scooters
sorry guys.......still not getting a pic
are you saying that barrel wall has been removed from whole of transfer port length......?
Re: can this work ???
Posted: Tue Feb 10, 2009 6:27 pm
by drunkmunkey6969
Yes Sean ,thats it.
Can you see this pic:
Re: can this work ???
Posted: Tue Feb 10, 2009 6:29 pm
by fishi
sean brady scooters wrote:sorry guys.......still not getting a pic
are you saying that barrel wall has been removed from whole of transfer port length......?
YES !
Re: can this work ???
Posted: Tue Feb 10, 2009 6:34 pm
by sean brady scooters
cheers dan.........
ooooooh thats a bit extreme.......
having said that......i,m sure the motor will still run.....ok......but i agree that it would be better to have some inner wall left,especially to supply the correct angle of entry of gases into bore...........
Re: can this work ???
Posted: Tue Feb 10, 2009 6:45 pm
by drunkmunkey6969
fishi wrote:can this tune/porting work and is it to recommend to maximise transfer area?
or would it influence the mixture flowing/entrance when transfer are opening as the bottom transfer edge is not there ??
anybody has used it ever ??
Where did you get the pic? What machine is it from?
A normal transfer wall has an 'arc' on the inside to help direct the flow.....so the increased area benefits of the cylinder in the pic maybe outweighed because of this.
Would be interesting to see it on a dyno back-2-back with an identical engine that has a standard spigot.