brushless 1/5 4wd conversion about to begin! couple questions.

[KaztheMinotaur]

Baja disk brakes will be the best idea. I don't think there will be a way to get pads on the diff cups.

I assume that Dave's has those brakes? Link?

[Overdriven]

Redcat hex is 22mm, baja is 24mm. The Redcat can run the baja rear hexes all around, either way you need new wheels or new brake discs made for the smaller 22mm hex.

Why can't the stock brake be run again? I thought it was in the front of the diff opposite the gear. I guess motor clearance is a concern with the motor mounted up front? Can we get a pic with the stock brake disc in there?

IMO it's time to figure out the target speed and do some math to determine what the size of the gears will be to see what will fit with the stock brake. Unless of course you want to adapt brakes at each wheel anyway.

[lincpimp]

Stock brakes are on the shaft that come off the gear reduction cluster and goes to the bevel gear, so he has that entire assy removed. Either putting disks on the diff inputs, or preferably on the wheels would be the other options.

[KaztheMinotaur]

I have Dark Soul Baja hexs on mine now as I am running Desperado / BowTies.

You can see better pics on the RedCat site: http://www.redcatracing.com/RC-Cars/1-5-Scale-Gas

I don't know if the brake will mount up to the hub carrier.

[Overdriven]

Oh, ok. I was wondering why NONE of the pics had the brake on the center diff! Brakes on the wheels get my vote then. If he's got a machinist to make the motor mount, make some new discs with the 22mm hex in them. I'd think that would be less expensive than machining a new shaft and mount for the center diff to accomodate a brake. Plus brakes at the wheels would be more powerful and fade resistant, important considering the weight of this thing.

[KaztheMinotaur]

Whats the link for that brake kit?

[BL_RV0]

Originally Posted by KaztheMinotaur

Whats the link for that brake kit?

http://integy.com/st_prod.html?p_pro...94&p_catid=126

[KaztheMinotaur]

I thought we stay away from Integy?

[Overdriven]

A recent rcca issue used an integy kit on a project 5t, that was "modified". But they would not elaborate on the modifications. I'm sure someone else makes a kit for the baja.

Baja kits aren't the only option for this application, there's also a couple different kits for the FG. The main concern is mounting the caliper, all will require new discs if the stock redcat hex is to be used.

[BL_RV0]

Originally Posted by KaztheMinotaur

I thought we stay away from Integy?

"We" usually do. For certain items, sometimes it's ok.

[Unsullied_Spy]

The Integy kit is a cheap knock-off of another product, go figure. Pretty sure Baja Skunkworks made the original one. One problem I know for sure about the Integy ones is they have bad cables. Check the HPIBajaForum for more information about them before you spend (more like waste) your money.

[Ryu James]

thanks for all the discussion and ideas guys. i have been thinking all of these same things when it comes to the brake setup.

so first off i would love to run these 4 wheel disc brakes by AMS.

http://largescalerc.com/index.asp?Pa...OD&ProdID=2356

the redat hex is 22mm and the baja is 24mm but as already noted they make adaptors available so i could get those and just run baja wheels also. or i could make 22mm discs. they main obstacle with running the disc brake kits is being able to mount the calipers to the hub or wherever it is they mount. i talked with LSRC and they said a custom hub would have to be made for this to work.

so the other option is to run the brakes off the center diff outdrives just like a 1/8 buggy. this will be much easier and will be an easier custom part to make than the hubs would be. then all i have to do is grind down each side of the outdrive a bit and make 2 brake discs. i already have all the components i need to make this work. plus this route will be much cheaper than the AMS set and custom parts.

both options are still up for consideration as i wont know how "easy" it will actually be until i start on it. right now i am working on the motor mount. my pinion and spur gears should be getting here tomorrow.

i have been looking for a free CAD type drawing software online. if anyone knows of anything please let me know. right now i have just been drawing with MS Paint which is a joke. but its good enough for my machinist to work from but i would like to just design everything so its ready for the CNC.

here is a rough draft of the motor mount. i havent put in any dimensions yet but you get the idea. i will post some pics of all the brake components and setup i think i will run soon.

[BL_RV0]

Looks like a solid design. Holy crap those brakes are EXPENSIVE!

[Bondonutz]

Originally Posted by BL_RV0

Looks like a solid design. Holy crap those brakes are EXPENSIVE!

4 wheel hydraulic, how super cool is that ? Very !

The progress and plans you have are top notch, looking forward to seeing this monster in action !

[Unsullied_Spy]

If you go with Baja wheels and tires Hostile makes some very good ones. If you're not a patient person I'd pay someone to put them on for you though! I'm in the process of installing my new Nightmare MXes for my Baja and I'm taking a stress break because they're such a PITA (Hard compound doesn't help at all!)