Bl Cen matrix build

[brushlessboy16]

we do i just wouldnt think that lexan would be structurally sound..



plus i don think any place around here carries lexan

[jhautz]

I responded to your PM Ben.

Yea the CEN stuff has wierd gearing in the diffs... I would do whatever you neeed to do to get rid of that Ferris Wheel 66T center gear. It screws up you gearing choices as well as pushing the battery way out to the side.

What I did was replace the front and rear diffs with the Hotbodies 43/10 truggy diffs and then the center spur gear with a normal 46T buggy spur gear. It was a good setup. I took out the spacers that CEN has under the center diff mount that raise it up to work with the stock 66T gear, then the RC-Monster Cen buggy motor mount will work with about a 1/2 or so spacers on the top so the upper chassis brace can bolt on in the stock position. I'm not sure about the exact size of that 1/2" spacer any more. You would have to measure the height of the spacer that goes under the center diff mount and get something the same height for the top of the mount. Not quite sure from memory, and I dont have it any more to measure anything.

You can kinda see what I did in this picture. Hope this helped and good luck on the conversion. Its a great truggy for the price and tough as nails.

[lincpimp]

I was going to suggest the hb truggy diff gears, but did not know if they would fit the cen cups...

That looks like your best bet BB, plusit looks good, and you will have more room and centralized weight with the smaller spur.

[lincpimp]

Century make a 9t pinion, but only good for a plastic spur.

[BL_RV0]

Novak also makes a 9t gear:
http://www.shopatron.com/product/part_number=5109/135.0

[jhautz]

I wonder how that novak 9T ould hold up on steel. I tend to have more issues with steel gears hat are smalle rthan 13T. Even the hardened pinions smaller than that against steel whear out quicker. The angle of the teeth on that small of a gear is the problem.



BB: If you not sure the 66T spur with the 9T pinion will fit on the motor mount you can email mike. Basically you need it to have a minimum of 40mm from the center of the diff bearing seat to the center of the motor shaft in it farthest out positin to get that gearing to work.

Not sure if it will. I think Mike usually designs them to work with the standard gear for the buggy (46T in this case) and the biggest poinion he makes (25T). That would require a minimum of 37.5mm center to center to work. He might put a little extra in there for safety so its possible it might work. Email him and see what he says.

[brushlessboy16]

Originally Posted by jhautz

Just a little bit on out outside edge of the cup to make the ring gear fit over it. I actually think I just did it with some sandpaper. It didnt take much at all.


I have a brand new Kyosho center dif here with a 50T gear on it. (It think its a kyosho anyway) Not sure where I got it but it doesnt look like it has ever been used and I have no use for it at this point. PM me if you want it. Not sure if a 50T will work for you or not. But it should drop right into the cen if I rmember right. I'll let you have it very reasonably if you can use it.

hmmm makes it alot easier and give me more room for gearing, i think ill take it :D

Originally Posted by lincpimp

Century make a 9t pinion, but only good for a plastic spur.

what happens if i use metal to metal?

i know that duratrax makes a spiral cut gearset for the raze (very stong i know from expireince) that might fit for diffs

[JThiessen]

Originally Posted by brushlessboy16

we do i just wouldnt think that lexan would be structurally sound..



plus i don think any place around here carries lexan

Its plenty strong - just a little on the heavy side. Any Lowes or Homedepot will carry it, and most hobby shops have smaller pieces. Another place to try is one of your local home window dealers. Call around and see if they have any scraps you can dig through - they might let you have it for free.