Whats the most speed increase?

[Speed2]

I have a revolt 30 with a leopard 3674 2200kv. With a 4s revoletrix 5000mah 70c battery and an octura x642 I am getting 50mph.

Is it possible for me to get 75 to 80mph with the same motor, same 4s battery with just a prop change?

[Bande1]

you need a castle XLX2 esc to do that. and some good batteries. motors are irrelevant for speed so long as they're not overheating.

[Speed2]

What I really trying to get at is this. I have a abc 2014 that I balance and sharpen myself. It adds another 14mph to 17mph on top of what the x642 gives.

And I heard dasbosta does good stuff. So I wondering if I can realistically get another prop that is much faster than the prop that I prep.

So with my 2014 I am in the 60's on 4s with motors like the leopard 3674 2200kv.

I am wondering if they is a prop that can get me to 80mph with the same motor on 4s.

[Bande1]

you go to the prop calculator and punch in your parameters to find a prop.

1919 will do it. you are going to fry everything trying as you approach 400 amps. the revolt 30 came with 60 amp ESC. 60amps....versus 400 amps. big *!***!***!***!**ing difference, bud. you cant just keep putting on bigger props and expect the system is just going to handle it. there is only 1 ESC that can come close to the amps you'd need. thats a castle XLX2.

[larryrose11]

You are probably at the limit of the 60A ESC.
The NAMBA Record for a P class mono is 80 MPH. Hull was a DF26 . They used a LMT motor, which has a 80000 RPM limit, probably a high KV
it was run with an ABC 3853 prop (there is a typo in the record, that not a prop available I think),
a Castle Creations Controller on 4S. a HOT setup , to say the least.
I think your goal needs to be adjusted.

Batteries: The C ratting printed on a battery is meaningless.
Look here for LIPO load testing

https://www.rcgroups.com/forums/showthread.php?1767093-Battery-Load-Test-Comparisons

As for the ESC, you should be running a 150A esc or more, probably a lot more like a Castle Hydra.