10-05-2009, 02:13 PM #1
What happens to the pump/impeller on a ski when you go over heavy whitewater, like a breaking wave? it can't be good for the ski, what type of damage is caused by it?
Last edited by Mack77; 10-22-2009 at 08:24 AM.
10-22-2009, 08:23 AM #2
10-22-2009, 09:21 AM #3
- Join Date
- Jul 2007
- near Toronto, Canada
Air mixed into the white water would be a form of jet pump ventilation (air bubbles), not cavitation (vacuum bubbles).
For the few seconds you are riding in the white water, the impeller will be compressing the air bubbles, so thrust is reduced. As long as you don't go heavy on the throttle, the engine shouldn't excess-rev.
The cooling system (if open loop) will get air bubbles pumped through it, but it will quickly purge the air out as soon as the jet pump gets hold of solid water again.
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By pet in forum 4-Tec PerformanceReplies: 44Last Post: 06-17-2007, 09:32 PM
By Yellow04RXP in forum Sea Doo Open DiscussionReplies: 9Last Post: 06-14-2007, 10:41 PM
By SHIFT in forum 4-Tec PerformanceReplies: 5Last Post: 03-03-2007, 09:08 AM
By andy95'slx780 in forum Polaris PWC PerformanceReplies: 3Last Post: 10-28-2006, 09:06 PM
By BJTKRXPHD in forum 4-Tec PerformanceReplies: 5Last Post: 07-09-2006, 08:59 PM