Kyosho mp9e Evo speedrun

[JP666]

Hi, i'm using my mp9e Evo to build a speed runner. Currently i'm only getting to 120km/h(mamba monster on 6s), because I can't put bigger gears as the motor mount can't be moved further from the center diff.
What are the options to solve this?
A smaller gear on the diff is also not possible.
Thanks for the advise!

 

[tntpoof]

break out the Dremel tool and carbide rasp ..Start working on either relocation motor mount r carve a slot on the motor mount screw slots..74 mph is your speed now. and I think you will want to change your tires .not sure what you have on it now.. you can also try larger outside diameter wheels..not sure what your running for a spur gear but Id look around to get a smaller toothed gear in steel...I run a 45 toothed robinson and a 48 tooth pinion on my speed runner and easily break 150mph I have installed many different thing to keep my car on the ground from a front spoiler to pop up with any front end lift...but I run a 1/6 scale car gtx v2...

 

[JP666]

break out the Dremel tool and carbide rasp ..Start working on either relocation motor mount r carve a slot on the motor mount screw slots..74 mph is your speed now. and I think you will want to change your tires .not sure what you have on it now.. you can also try larger outside diameter wheels..not sure what your running for a spur gear but Id look around to get a smaller toothed gear in steel...I run a 45 toothed robinson and a 48 tooth pinion on my speed runner and easily break 150mph I have installed many different thing to keep my car on the ground from a front spoiler to pop up with any front end lift...but I run a 1/6 scale car gtx v2...

So, the current pinion is 21t, and spur 43t.
As tires i have 1/8 Louise gt tarmac. Not very strong i must say.
Relocating the motor mount will be hard as it's one piece with the diff mount.
It seems the best options then are to get 1/6 wheels and tires and carve out the screw slots on the motor mount itself.

 

[tntpoof]

Thanks for answering. I looked at some vids on those tires and see them to start ballooning. Id pick up some good tires . used the x0-1 tires can't remember if they are 19 or 17mm hex ?Id also work on that motor mount .expanding the slots..
a fyi. take a pin point sharpie and do a trace of motor location with present gear . now pull screws out and put a larger pinion on and do the trace again see how much youll have to expand the slots....are you following?

 

[JP666]

Xo1 are 17mm i believe, will try to install those.
I think it s only possible to get to smth like a 28t pinion by expanding the slots.
Is changing the center diff with a spool also a possible/good solution ? For some brands I found spools, but not for kyosho.
Thanks for your feedback

 

[AClegg]

They are 17mm hex.

 

[tntpoof]

if you need you can adjust center diff to a Higher weight then there's no lose in motor rpms a 7 tooth jump. that will be just under A hair under 100 mph .97.333 but whos counting lol