A mad brushless setup help

[Hayden]

Would the Lehner XL 5000 (5000rpm/volt) be a better choice than the 1930?
The 2240/10 is about 1400-3000 watts but it has low kv:032:

Personally I think the higher the wattage the more chance I have getting to 80mph. do I still have to look at the kv or just the wattage? what matters the most?

All I want to do is: say that my car can go 80mph+
100mph would be nice:027:

[MetalMan]

Power = energy/sec. energy = 1/2 x mass x velocity^2 So, the faster you go, more power is required exponentially since velocity is squared.

the 2240 would definately not work and you still need to look at the kv rating.
i would still say that it is best if you go with the 1930. it is the best choice for what you are trying to do.

[Hayden]

[QUOTE=boss 302]the 2240 would definately not work QUOTE]

I don’t understand the 2240 is 1400/3000 watts and the 1930 is 1200 watts so would the kv rating really help the 1930 out do the 2240?:032:
I can modify, manufacture gears do what ever to make it work.

thanks MetalMan for the info it really helps:018:

the 2240 is a huge slow turning motor and you need something that has a higher rpm in your car. tomake a 2240 work you would need lots of cells and a humongous pinion.

[Hayden]

Ok with the 1930 they list a 1930/6 I would think the 6 is the number of turns?
Is there a faster 1930 (as in less turns) out there?

it looks like the XL 5000 is better than the 1930 is that true?

[Gustav]

A 6s lipo setup would achieve some pretty high speeds.You need to figure out how much battery power you can fit in your chassis,talking about motors is pointless untill you've decided how much power you're going to run/what battery set up.
If it's Lipos you plan to run i'd go and look at pack dimensions and weights and see what you can fit in.

[Hayden]

In my opinion I will choose the motor first then I can adapt to the batteries because I think the motor is more important than the batteries are at this stage.
I heard that nimh batteries are better than lipo 1 reason is: because nimh can discharge faster is that true? the world fastest car and boat used nimh.

[Gustav]

Originally Posted by Hayden

In my opinion I will choose the motor first then I can adapt to the batteries because I think the motor is more important than the batteries are at this stage.

The power comes from the batteries.The more power you can fit in your chassis (in terms of batteries) the faster you can go.It's very easy to select a motor that can extract the maximum power available from your batteries.I was going to suggest a 1930 at around 45K to 50K rpm for whatever voltage you're running,maybe even a 1940 if the load (gearing and drag) will be high enough,but again that depends how much voltage you can fit under the hood.

There are Lipos capable of high discharge too,the bottom line is you can fit more power in the same space with Lipos.

[maxxdude1234]

Originally Posted by Hayden

I think the motor is more important than the batteries are at this stage.

You need to get your batts sorted first. Finding the correct motor for your batts will be easy, its just a matter of selecting what turn motor u want. Finding batteries for a particular motor, and then fitting them in ur chassis can be much harder. So choose batts first, and then we can help u with motor choice

[coolhandcountry]

Well the motor can not put out no more than the batteries let it. So batteries are important.

[Hayden]

Originally Posted by coolhandcountry

Put like a 1930 7t in it or 8t.

In this case is it better to go lower turns or higher number of turns?
It looks like I’m getting the 1930 but which one?
Is there any other ESC that will run the 1930 other than the worrier?

[coolhandcountry]

The amount of batteries and stuff makes a difference on the turns you want.
Most any sensorless brushless esc can run the lehner 1930. As long as the amps match up some.

[captain harlock]

Go for a 1920/5 turn and a 12020 esc( if you want to cut down the cost a bit) and use either 4s lipos or 12 sub c cells. One guy at a certain forum was able to pull his TC3 to 86mph easily with that thing. A 1920/4 turn on 3s lipos or 4s will take you to speeds which are higher than 86mph. The 1930 are very powerful in comparison to the 1920, but since someone was able to push his car to 80+mph with a 1920, then why bring the bigger, costier one?!

[Hayden]

Nice that’s the figure I was after 80mph+ I can use 12 cell sub c or up to 8 cell lipo but I prefer 6 cell.

So the 1920 will go 80mph+ and since the 1930 is bigger will it push the car faster?

I was after a ESC that looked good for e.g the novak GTB it won’t work but it looks good, the car is for show as well as speed.