I used to think of that old Whip like it was a Kenworth. Just plowing through what ever what was in front of it. Chop, wind, buoy, ducks, other boats. Come'n through!!!
I used to think of that old Whip like it was a Kenworth. Just plowing through what ever what was in front of it. Chop, wind, buoy, ducks, other boats. Come'n through!!!
Noisy person
My boats are like me HEAVY I make up for it with my great driving skills LOL LOL some more.
Too light a boat makes it difficult to handle any water issues. Even coming back and hitting your own wake can be an issue.
I'm not going to argue. Some of my best race boats are tanks. They plow through the rough stuff and are always right side up at the end of the race!
I think the key is to get that weight at the right spot. There's a big difference in turning ability between a heavy boat with weight all over, and a heavy boat with weight all at the CG.
Agreed. Putting a bunch of weight in the back and counterbalancing it with weight up front just makes a see-saw. The boat will porpoise badly!
So another question on the Black Pearl (love the name) where is the CG.
Sorry brain freeze ...Been away for two years I know were CG is
I've read all 620 posts on the 5.7 . I have a castle 1515 1y how does it compare to the neu 1515 1y ?
Tyler races that on the regular. They're pretty good.
Noisy person
Thanks that will save $$$
My CG is 1-1/16" away from the back of the sponsons.
620 posts! What in the world could we possibly have been talking about!?
thanks I would have been at sponson back
The 620 doesn't count this years
Well, I have now read the 256 posts for 2017 ! have taken lots of notes . Have dry fit my 5.7...ride pads all 5mm , stick built nose with 1 inch Will use foam for round glassed (Thanks to Terry ) .does the Air dam work ? looks like 1/4 stock ,is one side longer then the other ?
Air dam? Are you talking about the AOA adjustment in post #211? Yes, it works, but I don't think it's necessary. John Gross has that boat now. It runs very well.
Yes ,thanks ....my build will start late this week. Ron
Well yeah but it's all over the place. In fairness though, that's probably Larry's fault.
Noisy person
Antonio
The hull that runs 70mph is one of the old 5.7 kits
This build and hull is a lot heaver then the new light weight kits.
It also has some of my own mods built in.
It is a full "P" setup
NEU 1515 - 1Y - 2200KV
Two 4S - 5000's 65-130C
Castle Hydra 240amp
Timing set to 15 Degrees
ABC - 1815 -17 -45
Build thread:
https://forums.offshoreelectrics.com...10-Black-pearl
Pictures
https://forums.offshoreelectrics.com...p?albumid=1364
I have since changed the turn fin, to make the hull more steady and run true without pulling to the right.
Also had to replace my drive tube, due to a dent in it that I did not notice, - lost two shafts at the last race.
Larry
Last edited by TRUCKPULL; 11-29-2017 at 01:06 AM.
Past NAMBA- P Mono -1 Mile Race Record holder
Past NAMBA- P Sport -1 Mile Race Record holder
Bump & Grind Racing Props -We Like Em Smooth & Wet
Larry, what are the pertinent restrictions for P Sport? I have a 2310kv TP motor and two batts like yours.
No restrictions for motor in P Sport. Spec is 36x60 mm
Sent from my iPhone using Tapatalk
2310 is pretty hot. Which motor is that? 4070? It could work with a small prop. The 1515 runs warm too at 2200kv.
For me, I prefer a few less kv with more blade in the water but results vary depending on which boat you're running. Some boats don't like a big blade. The Pearls do pretty well on 45mm props. A 45mm on a TP2310 will likely come in hot on the oval. Zip zip playing around it will work fine though.
Noisy person
It’s a 4050 TPP motor. Heavy hull, about 10.5#, so I figured a bit more motor bog... Yes, M445 is the best prop. And you are right, it is very hot heading into the corners! I have to back off throttle at same time I slam the rudder right. Scrubs off some speed by the apex, then more slowly straighten out while feeding back to full throttle. It’s a handful... I’m waiting on a mixer to install in the boat to handle that rudder/throttle ballet dance. Hopefully I’ll be able to put more attention to the track.
I haven’t even tried turning full throttle, just feels like a suicide mission, lol!
Oh, Boat does not like big prop/lower kv setup.... It will start to porpoise if I hit any rough water. Little prop/high kv and the boat just hops up, flies level, then sets back down.
Last edited by CraigP; 11-29-2017 at 11:18 AM. Reason: More info...
Usually those boat are light. There are tons of options though for motors.
Noisy person
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