Infraction Brake disc doesn’t fit spool output cup

[jondilly1974]

Does anyone know of an alternate spool output cup that is shaped like the standard diff output cup? The spool cups are the same as the diff input cups, which is circular vs the squared off side of the diff output cups. Since the brake disc is made to fit a diff and not a spool, I will need to find a way to adapt it. I can’t run a diff on this as it’s a speed runner. The brake is not for drifting, it’s an e-brake in case a pinion comes loose. Hoping there is a Tekno or Mugen part that would work.

 

[Hammer Down]

Put one of these lockers in the center diff. ?‍
https://www.ebay.com/itm/Arrma-6S-R...905150?hash=item3dab4c3c3e:g:UacAAOSwqqNfYV3I

 

[Engineer]

Don’t know if something like this is squared off enough.

https://www.ebay.com/itm/233391137659

I just did a search so I can’t vouch for the quality

 

[jondilly1974]

Put one of these lockers in the center diff. ?‍
https://www.ebay.com/itm/Arrma-6S-R...905150?hash=item3dab4c3c3e:g:UacAAOSwqqNfYV3I

View attachment 101152

Problem with a diff cup is I’m limited to large spurs. Would rather be able to go down to a 29T spur

Don’t know if something like this is squared off enough.

https://www.ebay.com/itm/233391137659

I just did a search so I can’t vouch for the qualirt

Those are what I’m looking for ? but the seller doesn’t seem to mention the make of them. I sent him a message thru eBay. ????

 

[Hammer Down]

Problem with a diff cup is I’m limited to large spurs. Would rather be able to go down to a 29T spur

I kinda figured as much, although I would like to try some in the f/r of the limitless.

 

[jondilly1974]

I kinda figured as much, although I would like to try some in the f/r of the limitless.

I have the Scorched lockers in F/R

 

[Hammer Down]

I have the Scorched lockers in F/R

Those would be my first choice, if they weren’t sold out...

 

[jondilly1974]

Those would be my first choice, if they weren’t sold out...

They are redesigning them. They told me that they were going to refund my order when I placed it, but I assured them I was only using them for speed runs vs drag hits.

 

[KiTris ExtremeRC]

Does anyone know of an alternate spool output cup that is shaped like the standard diff output cup? The spool cups are the same as the diff input cups, which is circular vs the squared off side of the diff output cups. Since the brake disc is made to fit a diff and not a spool, I will need to find a way to adapt it. I can’t run a diff on this as it’s a speed runner. The brake is not for drifting, it’s an e-brake in case a pinion comes loose. Hoping there is a Tekno or Mugen part that would work.

Maybe the Mugen #E2260 would work ?

 

[jondilly1974]

Maybe the Mugen #E2260 would work ?

Yep that looks like a winner. Gonna pick up a pair and see. ????

 

[KiTris ExtremeRC]

Yep that looks like a winner. Gonna pick up a pair and see. ????

Let us know if they work

 

[jondilly1974]

Let us know if they work

For sure. Thank you for the help. ??

 

[jondilly1974]

Just an update. My Mugen E2221 diff cups came in the mail and glad to report they seem to work for this application. I don’t have a motor installed or the top roll mount for my @PPS-RC mount, but short of that, it looks good. Just a note, the Mugen cups come two in a pack, but mine did not come with the required M3 grub screws. The Arrma M4 grubs are too large.

 

[Nitro Demon]

Nice! Glad they fit. I did mod like this also with HPI cup joint but I had to trim here and there for it to fit. Let me know the quality of them when you test it out and maybe I'll pick up a pair also.

 

[jondilly1974]

Nice! Glad they fit. I did mod like this also with HPI cup joint but I had to trim here and there for it to fit. Let me know the quality of them when you test it out and maybe I'll pick up a pair also.

View attachment 106019

If anything the brake works too well. I’ve tried to set its strength as low as possible and my last pass it still locked up the wheels when engaged at the end of a pass. I will dial it down again next pass as much as possible or possibly cost the disk with some graphite powder on one side.

 

[Jluther@becoinc]

Put one of these lockers in the center diff. ?‍
https://www.ebay.com/itm/Arrma-6S-R...905150?hash=item3dab4c3c3e:g:UacAAOSwqqNfYV3I

View attachment 101152

You could use the HR DIFF Locker with a traxxas spur like this. I had it in a typhon