Jammin CRT - middle diff

[Nova-Neo]

Hello and sorry for my bad english, but i come from germany

I have one question:

Can i use the Kyosho 46 tooth nylon spur without any modifications on my CRT middle diff ? And when not, what i have to do ?

My Setup now: 12xl / Kontronik 80-6-18 / gearing 16/62 / on 5s lipo or 16 cells NiMh !!!

With the Kyosho 46 i will use 12/46 or 13/46...

Thanks for your help...

Nova-Neo

[lincpimp]

Yes the kyosho spur will fit the crt diff cup, you may need a paper gasket, as the crt might use an o-ring to seal with the current steel spur ear. Or you can use some sort of silicone or other glue to make a seal.

Just make sure that you lower the pinion tooth count to compensate for the smaller spur, but it looks like you have already figured that out!

[Nova-Neo]

Okay fine, thanks for your help

Originally Posted by lincpimp

Just make sure that you lower the pinion tooth count to compensate for the smaller spur, but it looks like you have already figured that out!

I think it works:

Now 62/16 = 3,87 and then 46/12 = 3,83 or 46/13 = 3,53 for a little bit more speed !

[Jammin]

I just reused the oring with my kyosho spur and it worked fine. I had to use a 10t on 4s. You might want to get an 11t just incase.

[Nova-Neo]

The combination 5s and XL/12 works fine.

I have more rpm with this as with the combination 4s and XL/10 ore ist this a error in my reasoning !

I think 5s and Xl/12 is a little bit to much

[lincpimp]

You have about 1k rpm more with the 12xl on 5s. Still a bit low on the motor speed though, 25k rpm is about 10k rpm less than most run the xl feigaos at.

[Nova-Neo]

Originally Posted by Nova-Neo

I think 5s and Xl/12 is a little bit to much

Sorry my mistake, i want to say XL/11 !!!

@lincpimp:

what do you think is the best XL with 5s lipo in jammin ? Lower than XL/12 ?