Optimal set up for 30" hydro.

[Jeepers]

motor works great! on a 648 prop in my Whiplash the motor came in under 115 no water cooling on motor. to swing the 450 I did put water cooling on it. a 646 works well,646/3 is good a 447, 447/3 is kinda of a pig on that motor for a hydro.
Swinging these size of prop on my Whiplash (48mm and larger) I don't have torque roll but I did have prop walk issues the boat would not track straight so off setting the drive line would be a must.

[Jeepers]

I am going to try a heavily modified 447 to see if that gets me comfortably over 60mph.

how much pitch?

[electric]

how much pitch?

Not sure Jeepers I had the "More Go than Show" prop guy make this one up for me. I have run a standard M447 on the boat before. Here are some pictures of the custom prop.

By the way I also took a quick pick of this other prop I have. An H6. Not really sure how this one might work on the boat.

[D. Newland]

motor works great! on a 648 prop in my Whiplash the motor came in under 115 no water cooling on motor. to swing the 450 I did put water cooling on it. a 646 works well,646/3 is good a 447, 447/3 is kinda of a pig on that motor for a hydro.
Swinging these size of prop on my Whiplash (48mm and larger) I don't have torque roll but I did have prop walk issues the boat would not track straight so off setting the drive line would be a must.

I raced my Insane 30 in P Sport w/a 1521 1.5D, X648 prop and experienced exactly the same thing...1P 6500 G3's and a Castle 240.

IMO the extra Kv of the 1515 1Y will actually get that boat moving faster without having to go too big w/the prop...where most will experience all the ill-handling that will comes w/it.

[properchopper]

I raced my Insane 30 in P Sport w/a 1521 1.5D, X648 prop and experienced exactly the same thing...1P 6500 G3's and a Castle 240.

IMO the extra Kv of the 1515 1Y will actually get that boat moving faster without having to go too big w/the prop...where most will experience all the ill-handling that will comes w/it.

David's on the money with this advice. Bigger/lower KV motors needs big wheels [just fine for P-Monos] - a 1515 1Y (or its variants) is the ticket- speeds in the low 60's and controllability. If you want to join the ZSP/WTS club, go bigger

[johnf]

Good to know about the large props causing that issue. I wonder how the 1521 would do on 5s, being that I already had it laying around. Really don't wanna buy another neu LOL

[Jeepers]

Good to know about the large props causing that issue. I wonder how the 1521 would do on 5s, being that I already had it laying around. Really don't wanna buy another neu LOL

it works, a friend of mine used one of my 1521 1.5D motors on 5s for Q sport hydro on a 445 prop it worked I do not know what the temps were but he said it was "cool" on that prop, what ever cool means to him.....

[Jeepers]

I raced my Insane 30 in P Sport w/a 1521 1.5D, X648 prop and experienced exactly the same thing...1P 6500 G3's and a Castle 240.

IMO the extra Kv of the 1515 1Y will actually get that boat moving faster without having to go too big w/the prop...where most will experience all the ill-handling that will comes w/it.

Tony and Dave are correct about using the higher KV motor so you dont have prop walk issues.

when I put the 450 on it had less prop walk issues then on the 648 not much but less and was easier to drive. I then offset the drive line in the boat and it eliminated the prop walk issues.

Tony I ran this motor because I didn't want to buy another this one came out of a P mono which I no longer have.

[Jeepers]

speeds in the low 60's and controllability.

Lucky Duc's Ducati Whiplash was 68mph on his Eagle Tree gps using a Medusa motor (2200kv)

[electric]

Lucky Duc's Ducati Whiplash was 68mph on his Eagle Tree gps using a Medusa motor (2200kv)

What kind of prop?

[detox]

What kind of prop?

I think it was the Octura m445

[Jeepers]

I think it was the Octura m445

actually I think it was a 645.

[Jeepers]

By the way I also took a quick pick of this other prop I have. An H6. Not really sure how this one might work on the boat.

I am not familiar with the H6 but the numbers look good!!!