525 Heat Test Results
#35
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Joined: Mar 2007
Posts: 285
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From: Spokane WA
X2
Dont worry you will get to the bottom of it. When I put the Whipple on my 496 I had a hell of a time trying to get the setup right. I was running a 28p bravo at 21 to 22% slip. My stock setup with a 24p bravo was 14 to 15% slip. I run a xr standard lower with dwp. My x is 3.5 bellow the bottom of the boat. When I picked up my 26p p5x my slip went from 21% to 14% with no spacer. I picked up 7 to 8 mph just with a prop change. You will get there, it just takes some time and trial and error. The Nordic Boys hear are more than helpful and have been down the same road. keep us posted
Dont worry you will get to the bottom of it. When I put the Whipple on my 496 I had a hell of a time trying to get the setup right. I was running a 28p bravo at 21 to 22% slip. My stock setup with a 24p bravo was 14 to 15% slip. I run a xr standard lower with dwp. My x is 3.5 bellow the bottom of the boat. When I picked up my 26p p5x my slip went from 21% to 14% with no spacer. I picked up 7 to 8 mph just with a prop change. You will get there, it just takes some time and trial and error. The Nordic Boys hear are more than helpful and have been down the same road. keep us posted
#37
I got my 26 4 Blade back from BBlades Saturday and today I tested them both ....
So my test was 26 Labbed 4 Blade Against 26 P5X ....
my Boat is an 05 Heat with a 525 and a 1 inch spacer testing was done on the mississippi River with about 1/2 load of fuel with my Bow cover on.....I made the excact same run with Both props .....
Top speed with the 4 Blade GPS was 74.9 and just under 1/2 Trim ....If I trimmed any higher I would hit the rev limiter ....So at 74.9 Just under 1/2 trim I was at 5300 RPM ....But the Boat was real Unstable with that Prop in comparsing to the P5X..
The P5X top speed was 73.9 GPS at 5250/5300 RPM ...trim just above the 1/2 way mark....But the Prop keeps the Boat so much more stable .....
So my Decision is to Buy the P5X .....the prop just hooks up so much better then the 4 blade ........I felt I really had to keep both hands on the wheel at Full throttle with the 4 Blade where the 5 Blade I was much more relaxed .....The 5 Blade is expensive but well worth it I think .......
Anyone interested in trying one BBlades will let you try one for 14 days for $40....
So my test was 26 Labbed 4 Blade Against 26 P5X ....
my Boat is an 05 Heat with a 525 and a 1 inch spacer testing was done on the mississippi River with about 1/2 load of fuel with my Bow cover on.....I made the excact same run with Both props .....
Top speed with the 4 Blade GPS was 74.9 and just under 1/2 Trim ....If I trimmed any higher I would hit the rev limiter ....So at 74.9 Just under 1/2 trim I was at 5300 RPM ....But the Boat was real Unstable with that Prop in comparsing to the P5X..
The P5X top speed was 73.9 GPS at 5250/5300 RPM ...trim just above the 1/2 way mark....But the Prop keeps the Boat so much more stable .....
So my Decision is to Buy the P5X .....the prop just hooks up so much better then the 4 blade ........I felt I really had to keep both hands on the wheel at Full throttle with the 4 Blade where the 5 Blade I was much more relaxed .....The 5 Blade is expensive but well worth it I think .......
Anyone interested in trying one BBlades will let you try one for 14 days for $40....
#39
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Joined: May 2009
Posts: 235
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From: Texoma
Took the boat to the lake today with the standard XR and the 28 B1 that I've been testing with. WOW!!! BIG difference. The boat came out of the hole really good and FINALLY didn't blow out. Still alot of slip, but a noticeable diff all through the rpm range. Throttle reponse was pretty good, and the handling was WAY better. Not sure how just the sportmaster can make that much difference, but IT DOES!!!
Prop is currently 3 3/8 below keel - approx 880 elevation - 82 degrees
Boat ran 74mph (garmin gps) at 5300/5350
Well, Were do I go from here? you guys are the experts and my brain is overloaded at this point. One thing is for sure, I am MUCH happier with the standard XR even after one test run.
I did have a B1 26 with me and didn't test it, should I??
Thanks, Derek
#40
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Joined: Mar 2007
Posts: 285
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From: Spokane WA
It sounds like you are right there. If the boat handle well then the next step is to try a p5x to bring the slip #'s down. These boats seam to run and handle the best a 12 to 14% slip. If you can find the right combo to get there?? Prop or spacer?? I would get my hands on a prop frist. Then spacer. Nice work





