Max stock motor speeds.

[TheShaughnessy]

Wondering if anybody has got to the 50 mph mark on the stock motor. I should be getting close but have no gps to verify. Just ran the numbers on the speed calc and in theory It is obtainable. 50+ on stock motor is current goal, would like to get to 55 if im gonna run up front at nationals. 2 min for sure might have to prop down for 4 min lso action.

If anybody has achieved this let me know. I still have to get the bounce out of mine, only have a few packs thru it since my latest rebuild.

http://www.facebook.com/photo.php?v=3365246612116

not sure if that will work but try clicking it.

[TheShaughnessy]

so i'll be the first then?

[b20btec]

Are you doing this with a 4S setup?

[Darin Jordan]

I did some testing using a stock Miss Geico just before the Mystic was released, and I tested both the 1500KV and 1800KV power systems. I was able to set the 1500KV system up and run pretty steady laps around a simulated Offshore course with 46-48mph max speeds attained. Was a pretty big wheel on the back, however, and I wasn't able to do any mAh usage calculations, though I did run it like this for about 3 1/2 minutes.

I personally thing 50mph on the stock system is going to be pushing things, but I haven't really tried to make it happen, so perhaps it's possible??

I'm still not completely convinced that the 1800KV system is "faster" than the 1500KV system. I do know that the 1500KV system is STOUT! It can pull a BIG wheel and pulls hard off the corners. I'm also still not convinced that "top speed" should be the goal in offshore... you are there for such a short period of time. I'd focus on cornering speed and acceleration. I'd much rather have a 45mph setup that gets there quickly and holds it, than a 50mph setup that reaches that speed only at the extremes of the straights, at the expense of acceleration off the corner.

I'll be right there with you. Plan on running a Mystic or Miss Geico in Offshore, and will likely use it for dual-duty in both P-Ltd and P Offshore (with a motor swap, of course...)

[TheShaughnessy]

I did some testing using a stock Miss Geico just before the Mystic was released, and I tested both the 1500KV and 1800KV power systems. I was able to set the 1500KV system up and run pretty steady laps around a simulated Offshore course with 46-48mph max speeds attained. Was a pretty big wheel on the back, however, and I wasn't able to do any mAh usage calculations, though I did run it like this for about 3 1/2 minutes.

I personally thing 50mph on the stock system is going to be pushing things, but I haven't really tried to make it happen, so perhaps it's possible??

I'm still not completely convinced that the 1800KV system is "faster" than the 1500KV system. I do know that the 1500KV system is STOUT! It can pull a BIG wheel and pulls hard off the corners. I'm also still not convinced that "top speed" should be the goal in offshore... you are there for such a short period of time. I'd focus on cornering speed and acceleration. I'd much rather have a 45mph setup that gets there quickly and holds it, than a 50mph setup that reaches that speed only at the extremes of the straights, at the expense of acceleration off the corner.

I'll be right there with you. Plan on running a Mystic or Miss Geico in Offshore, and will likely use it for dual-duty in both P-Ltd and P Offshore (with a motor swap, of course...)

awesome i plan on doing the same thing with a motor swap. couldn't swallow buying a neu or castle so i got a HK 4074 to try out and i ordered up a 150 amp eagle tree logger today so now i can get some real numbers on props too. I have 8000 mah on board or possible even 10000 but if acceleration is key then I'm going to try and stay as light as possible while still being stable. I also got some 4s 3300 mahs to see what the weight would do but i haven't gotten to run them yet as I'm waiting for connectors. I'll be searching for that perfect set up from now till june so hopefully i come up with something good.

[Fluid]

50+ on stock motor is current goal, would like to get to 55 if im gonna run up front at nationals...

That's a totally unreasonable goal. Most P-LSH racers struggle to get mid-50s with the UL-1 motor. The fastest I got with my FE-30 on the 1800 PB motor was 50 and was pulling 80-90 amps to get there. A cat won't be as fast as a hydro.



.

[TheShaughnessy]

Oh well 49 would be fine, I thought the top guys were Going faster. I'm already right there as far as top end goes then. Just gonna keep working on not scrubbing So much in the corners.

[Darin Jordan]

Jay is right... (not uncommon... )

The top guys might THINK they are going faster... but top speed on a GPS shouldn't really be the goal, especially in offshore.

Overall... the 1500 and the 1800 motors put out about the same amount of power. WHERE and HOW they put out that wattage is another story. Picking the right overall setup is the key.

I can get similar speeds from the 1500, 1800, and 2030Kv motors... It's all in the setup and prop selection, and it's going to occur at different points on the course. It's also going to tax different parts of the system.

Finding out which way works best for you... that's the FUN part!

[TheShaughnessy]

Cool. Should be interesting then. I feel better about my boat every time I run it. Now if only I felt the same about my hydro.

[TheShaughnessy]

What rpm sensor do you think is the best for our application. I have a b4 150 amp eagle tree on the way. Looking to expand.