05-24-2006, 12:36 PM #1
==Is pitch decrease suitable for close course racing??==
my ski running around 7800 rpm. need some topspeed now
want to know, Is pitch decrease (to bend the prop),work well with close course racing?
in Thailand air temp:36 c.
my gps shows only 67.8 mph(garmin quest) but in windy day& choppy water ...the straight way is quite not enough to hold the topspeed(pond)
Is it too slow??? please helppp!!!
my present mods: in stock rules
-reflashed ecu(racing 8400rpm rev cutting)
-158 degree rr thermo
-rr s/c clutch
-solas 14/19 (little modified shapen blade)
-Riva power filter but extend longer to evade from heat fade,put the filter near the stock air deliver)
-ngk dcpr9eix spark plug
-jerry's filled ride plate
-intake grate matched with rideplate
-custom sponson but based on R&D (deeper)
-ride plate down 1.5 mm for better turn in close course
-just replaced a new wear-ring
05-24-2006, 12:41 PM #2
05-24-2006, 02:26 PM #3
- Join Date
- Apr 2005
- Augusta GA
Ditto to what Jerry said. Jerry I am taking my ski out today I came up another mm and 1/2 almost 2 on my traling edge. I think when I pitched it befor and ran almost 73 the weather was mutch cooler and with he temps getting up I lost 150 RPMs so I came up some more. With your impeller I was spenning it less RPM but your LE's were less.
05-24-2006, 09:29 PM #4
Will i ruin my prop if i do it myself???
Is the prop machenic @the dealer can do this?? (he can repair the prop but i don't know how good he is about pitching)
Solas or stock prop(both are a little modified ,sharpen&streamline added) which one would be better? please choose for me
solas : 7800-7850
stock : havn't test yet after modified
Wish me have luck this weekend @the dealer
..and also it will gain me some rev. with more speed too
Last edited by novice_4; 11-07-2006 at 05:34 PM.
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By Kaw345 in forum Kawasaki PWC Performance (4-stroke)Replies: 15Last Post: 08-08-2013, 02:54 PM
By Seadooracer9 in forum 4-Tec PerformanceReplies: 7Last Post: 07-17-2007, 10:28 PM
By great lakes gpr 1200 in forum Yamaha PWC Performance (2-stroke)Replies: 7Last Post: 07-10-2006, 01:04 AM
By QuickMick in forum Videos & PicturesReplies: 8Last Post: 05-25-2006, 04:24 PM
By johnD in forum 4-Tec PerformanceReplies: 63Last Post: 06-15-2005, 08:12 PM