Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
|
techtalk:ih:engmech04a [2019/06/14 19:14] hippysmack [Pros and Cons of Functionality] |
techtalk:ih:engmech04a [2019/06/14 19:23] hippysmack [Pros and Cons of Functionality] |
||
|---|---|---|---|
| Line 44: | Line 44: | ||
| Your pushrods are doing the same thing 29 times a second at 3500 rpm. \\ | Your pushrods are doing the same thing 29 times a second at 3500 rpm. \\ | ||
| The last thing we want is to make things less rigid. \\ | The last thing we want is to make things less rigid. \\ | ||
| + | |||
| + | The pushrods have enough trouble with harmonics without adding another place for the valve train to flex. ((mrmom9r of the XLFORUM http://xlforum.net/forums/showthread.php?t=1682099&highlight=splitting+rocker+box)) \\ | ||
| + | I've seen flex as high as .025" just rolling an engine with big valve springs over on the bench. \\ | ||
| + | If we lose up to .025" or more due to box flex, that is that much less that the valve is opening. ((Monte03 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1682099&highlight=splitting+rocker+box&page=2)) \\ | ||
| + | So much for your hi lift cam. \\ | ||
| Even on dead stock valve train the naked eye can actually see the pushrod end of split boxes flex when pushing the kicker thru. ((DR DICK of the XLFORUM http://xlforum.net/forums/showthread.php?t=1719533&highlight=splitting+rocker+box&page=2)) \\ | Even on dead stock valve train the naked eye can actually see the pushrod end of split boxes flex when pushing the kicker thru. ((DR DICK of the XLFORUM http://xlforum.net/forums/showthread.php?t=1719533&highlight=splitting+rocker+box&page=2)) \\ | ||
