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I would leave the drive at the stock depth and try a 27 p5x. I think you will be happy.
Otherwise, throw the 1 inch spacer on her and go with a merc lab 28. Glad you are getting things sorted out. I find that each time I do a motor or horsepower mod, I have to re-do the setup on the boat. Chris |
Glad the standard lower worked out for you :drink:
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Originally Posted by boatingbent
(Post 3117685)
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.... Regards, Steve |
Originally Posted by bullittcustoms
(Post 3117746)
Everything Helps at this point, thanks....
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 Hi Derek, 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 Sounds like you are getting close. With the RPM you are running now with the 28", the 26" will just put you into your rev limiter. Time to test props. Congratulations :drink:........ Steve |
Originally Posted by Steve Zuckerman
(Post 3118210)
Congrats Bent. The Hydros are nice out of the box, but I'm sure Brett can find you another MPH or 2 with some minor tweaks. I would just keep it simple like sharpening the leading edge, pitch matching the blades, and these boats seem to like a little more than stock cup.
Regards, Steve |
Originally Posted by boatingbent
(Post 3118521)
I asked Brad that today and he says there aint much they can do to that p5X cause I am so close to the rev limited now ......Sharpening the leading edge might just get my 2 high on my R`s
I think you'll have a great time with it like it is. Ran my new 30" P5-X this weekend. Smooth as silk, efficient in the midrange (50 @ 3500, 60 @ 4000, 70 @ 4500), and fast :drink:. Best Regards, Steve |
Maybe I'm doing this backwards, but I put a 1" spacer on last night to test. gonna try the stock B1 28" in the morn. Still gonna order a p5x, this was just faster cause all the parts were here. Prop shop said if I let them know soon the can Lab/add cup/tweek the prop by the weekend. How much should the spacer bring the rpm down? anyone got a p5x for sale??
Derek |
Originally Posted by bullittcustoms
(Post 3120114)
Maybe I'm doing this backwards, but I put a 1" spacer on last night to test. gonna try the stock B1 28" in the morn. Still gonna order a p5x, this was just faster cause all the parts were here. Prop shop said if I let them know soon the can Lab/add cup/tweek the prop by the weekend. How much should the spacer bring the rpm down? anyone got a p5x for sale??
Derek You should see a noticeable reduction in slip with the 1" spacer with a B1. It really helps the 4 blades to run them deeper, because they have less blade area than the 5 blades. As for exact #s to give your prop man, you really should run the prop and note speeds at varying RPM, holeshot, and lift, handling, and speed/RPM at WOT. If you give your prop man this accurate information he should be able to do a nice custom job for you. The P5-Xs will also run with fine with the spacer, even though you may be able to run them without it. Regards, Steve |
Derek
I would call up BBlades they were awesome to work with when i was testing props...... They will loan you a P5X for $40 for 14 Days ........I ended up going with a 26 P5X for up here ........ |
Originally Posted by boatingbent
(Post 3120246)
Derek
I would call up BBlades they were awesome to work with when i was testing props...... They will loan you a P5X for $40 for 14 Days ........I ended up going with a 26 P5X for up here ........ Derek |
Just don`t make the same mistake I made ......I only get to my Boat one the weekends its on a lift 60 miles away .....Well I ended up just having Bblades send the test prop out on like a monday when I should have let them send it my way like on a Thursday then i would have had to weekends for testing instead of only one weekend .......Well It ended up that they allowed me to keep it the 2nd weekend anyways .....If I would have sent it back on Monday i would have gotten it back 2 Days to late ...But all that didn`t matter cause i ended up calling them Monday to let them know that i was keeping it .....
Like I said they are great People to work with .......You can mention my name |
Originally Posted by bullittcustoms
(Post 3116123)
Anyone try a bigger diameter prop? My Prop guy mentioned a maximus? my 496 would smoke this all the way to the top and its killing me!! LOL
Derek John |
Originally Posted by sport
(Post 3122893)
My 2010 Heat came with 28x15 maxiums and it ran good on top end but would only go 35 at 3000 and 46 at 3500 rpm's, so I got a 30p p5x and it runs the same top speed as the maximus did but runs 39 at 3000 and 49 at 3500 rpm's. Scott at mercury racing said to try a labbed 30x15.25 short tube maximus, so I got one from teague's last week before I went to Lake Havasu and I could not belive it ran 43 at 3000 and 53 at 3500 rpm's and it ran 1 mph faster at top speed than the p5x, these props have alot of cup out on the tip of the blade's to lift the bow out of the water. So far this has been the best prop on my boat.
John Also just curious what lower unit you are running? Thanks in advance... just like to keep good records. Chris |
Originally Posted by CB-BLR
(Post 3123177)
What are you getting for top end with the labbed 30 Maximus and at what rpm?
Also just curious what lower unit you are running? Thanks in advance... just like to keep good records. Chris Looking forward to hear how your boat run's after you get your Whipple stage 6 going. John |
John,
The best consistant boat speed I saw with a stage II was 92-92.5 mph with an occasional 93 mph blast. I could hit mid 91's any where..any time..any load. This was with a labbed 30 pitch p5x at 5650 rpm. The prop was labbed by Hering. The fastest prop ever, was a Hering 29 at 94.1, but I could not replicate it, and the prop was not as good on the low end as the p5x. It is however about 1.5 mph faster than the p5x at just about all rpm's. This was with no spacer installed. How does your boat handle at speed? So far, the best I have gotten the boat to with the stage VI is 95.7 mph, with more to go, but I had handeling issues. I am going to have to set up the boat differently for these new high speeds, and have not had time to work on it. The boat is now at Nordic in Havasu getting warranty work done. I will let you know how things go when I get it back. Chris |
Chris
Both props are very stabel with no chine walking and carry the nose of the boat well. What did herring do to your p5x? |
Originally Posted by sport
(Post 3123497)
Chris
Both props are very stabel with no chine walking and carry the nose of the boat well. What did herring do to your p5x? It picked up 100-150 rpm, and about 2 mph. If you do this... ask to talk to Ben in Marysville Washington .. he is the production manager. Tell him to make your prop just like he did mine. Use my name as a referal .. you should get a better price ... he is a friend of mine. Chris Bullock 206-235-4545 |
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Sport,
As to your speeds... I highly recommend that you get Dustin's larger inlet/outlet kit for the innercooler water, and run a seperate water pickup for the innercooler. As the system sits now, the innercooler is robbing water from the heat exchanger system, and the innercooler outlet is restricted down to 3/16 of an inch so as to keep water pressure in the rest of the system... this system simply does not work very well. By using a seperate pickup for the innercooler, the entire motor runs cooler... you are then able to run an 1/8 inch smaller supercharger pulley than comes on the stage II, and get more horsepower safely. Chris P.S. This is not a picture of my boat, but is the same place, and way I mounted my innercooler pickup |
Originally Posted by CB-BLR
(Post 3123538)
Made sure all the blades were exactly the same.. balanced it, and sharpened all the leading edges.
It picked up 100-150 rpm, and about 2 mph. If you do this... ask to talk to Ben in Marysville Washington .. he is the production manager. Tell him to make your prop just like he did mine. Use my name as a referal .. you should get a better price ... he is a friend of mine. Chris Bullock 206-235-4545 |
3 Attachment(s)
Here are some new results. I was much happier this weekend.The boat hit 78 the very first time out. The lake had huge swells and I had about a 30-35mph tailwind. It was one of the scariest rides I've ever had in a boat. I didn't even watch the rpm or GPS, I just looked straight ahead and had a death grip on the wheel... LOL At the end of the ride the boat competely came out of the water twice.. DANGER!!
The wind finally calmed down as the day went on. Every other time out the boat would run 75-76 on pretty windy water. The water pic is 200 yards inside a cove, you can see the whitecaps out there behind the bouys. Doesn't look that bad, but it was nasty!!! The B1 28 - 1" Spacer 3500 rpm - 51 MPH 4500 rpm - 59 MPH 5250 rpm - 76 mph B1 26 1" Spacer 3500 rpm - 41mph 4500 rpm - 60mph hitting limiter - 74 mph The 26 was obviously very fast and responsive all over the rpm range. I still want to try a 27 p5x pretty bad. What do you guys think?? Derek |
Noticed the elevation.:drink:
That's cheating! lol! |
Originally Posted by 90mphRAGE
(Post 3136002)
Noticed the elevation.:drink:
That's cheating! lol! |
Good work.You are getting there. Yes I would try a 27" P-5X.
And I would also test a 27" or 28" Q-4X. Steve |
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