I'm getting 5.5 and 4.0 as every thing else is out of stock.
I drove Keefys SP5.5 and power is perfect for SMA... well for me anyway.

Ant, I'm going to SA title later this year. What motor do you use on 12th scale over there? Track looks very nice but hard to tell size from pics.

I dont know, havent run 1/12th since nats I would say 4.0. Thats whats in it now Track isnt quite as big as Whalan, but bigger than SMA. Its very technical. 23 sec lap times i reckon in 1/12th

Antoni

Thats Good to hear. I will be there as well for 1/12th.

Ok as brad said there is little reason to buy big power motors as you will find very little use for full throttle. Last years nats was WON with a 4.5 at Whalan. This is with an exp driver who still though there was plenty of power.

Now for some quick facts... YES you can go faster in a straight line with more motor... BUT.. How much time do you spend in the turns? Even tracks like Whalan you still spend 80% of the lap turning the steering wheel. Because of this throttle control directly effects your lap speed.

The Moral is if you want consistent lap speed GET a motor you can handle. For most ppl on current technology that is around 5.5t even on big tracks.

Also stay away from LRP. They are easily the hardest motors to drive fast with too much bottom end. If you have to run one run VERY LONG wires to your motor to help prevent the motor from transferring too much heat to your ESC.

Hiroshi,

I will give you a new free original SP style 4.5 motor to play with

It is just a Feigao 4.5 so you can play around with it to see how you go.

Whats happening in SA? Are they giving free driving lessons?

Cause i could do with some of that too!

I just want to be slow in as many states as i can. I am slow in the ACT, SA but Hiroshi beat me to that spot in NSW

HI,

Looked up the RPM between the models FYI

4.0t = 9100 rpm/Volt
4.5t = 8000 rpm/Volt
5.5t = 7000 rpm/Volt


These are all based on SP V3 gearing sheet.


Alex

Wow, it's pretty big jump from 4.5 to 4.0 than I thought.

Going to be honest..

I also was thinking it was no more than the 500 rpm/Volt between 4.5 and 4.0

There seems to be another 1000 rpm/Volt increase to 3.5 being 10100 rpm/Volt

But then 2.5 is 2 hp or something like that, funny old world hey


Alex

This would be fine to play with...

I'll take that offer thanks.
Can you give it to Martin tonight?

I'm going to take Troys advice and get my self SP5.5 and Novak6.5
Thanks to all for help.

Hiroshi, thats what my 5.5 is....
One of those, i also have one of those in a 4.5 and 3.5 (but i dont want to see you break your car again!)