D
Deleted member 12676
Guest
Here's a drawing showing how the stock Grubee cylinder has the wrong angle for one side of each transfer port (the bottom side in this drawing) which directs some of the intake gases too close to the exhaust. At this angle some of the intake charge can be drawn directly out of the exhaust port which results in power loss and increased pollution from unburnt fuel exhausted.
The second drawing shows how if the angle is corrected that the intake charge will all be directed toward the intake side and away from the exhaust port. This results in power gains and less contamination of the air.
More info on this is at my site (click on signature link)
The second drawing shows how if the angle is corrected that the intake charge will all be directed toward the intake side and away from the exhaust port. This results in power gains and less contamination of the air.
More info on this is at my site (click on signature link)
Attachments
Last edited by a moderator: