Brushless Buggy ?

[rchippie]

I'm considering building a BL 1/8 buggy. I would like to know can i get good speed & runtime on only 7 cells, if so what motor & speedo would be recomended ?. Thank's

Leave the small cell counts for LiPo and 1/10's, this is a big car, it can do (and needs) more! I have a converted Ofna 9.5 with a Lehner 2800xl and Warrior 9918 controller that FLIES on only 12 cells geared 12/52.

[rchippie]

Is the center gear metal or plastic ?. If plastic was the diff a direct replacement ?. I was looking at the ofna hyper 7 tq sport buggy. I was thinking i could always if i had too get a hardend pinion & use the metal gear center diff.

[Dafni]

Yep, I would just get a hardened pinion and use it directly on the stock metal spur.
I hope I can get a nice roller for my winter-project. I'm looking for a Mugen MBX4 or 5, or an Ofna 9.5 Violator.

I would also suggest 12 or more cells, or LiPo.

[rchippie]

Hi dafni !!!

I came to the conclusion that getting a hardened pinion is the easyest way to do it. Also buy doing that i can get a better buggy. Lipo's are'nt really a option to pricey. I was thinking about the ofna hyper 7 pro kit, or the xray xb8r kit, or thr sportworks arr mayhem. All those buggys are right around $400.00 new.

[Dafni]

Hi Hippie! Similar project again, eh?

As stated elsewhere, I could harden some pinions myself, but I think RC-Monster Mike will come up with a batch too.

I hope I can get a good quality buggy to convert. Those Mugens are awesome!!
The Ofna Violator has a nice wide stance.
I got an offer from a friend of a friend for a Kanai2 roller for 100bucks. Let's see. I plan to do this project in the winter days.

Yes, I am also putting Lipo on the backseat. But one day, I'll have to try them. But before that I HAVE to get a real radio :o

DAF

[rchippie]

I'm shying away from buying a used buggy if i do this . I've bought used vechiles before and i've been burned. If i bought used i would have to know the guy & then the deal would have to be so good i could'nt pass it up:L: . I've found 3 or 4 buggys around $400.00 to choose from so who knows. I've thought about the mbx5 but its over $ 500.00 for the basic kit. The basic xray kit is $425.00 & the hyper 7 pro kit is $450.00 ouch.

[Dafni]

You're right about used VS new cars. But for this project I think I'll go for a used top-of-the-line buggy. You can guess who's my oversea friend, right? And if He says it's in good condition, I trust him.
But so far nothing's signed and sealed. Let's see. No rush on this project, I have another one occupying the workbench at the moment. ;)

I would choose a buggy with a centered driveline, a little harder to find because manufacturers try to put the engive as close to the centerline as possible, but makes it a lot easier for battery mounting because you have more room. My 9.5 has a fairly centered diff (on the chassis), as do others.

[Dafni]

I'm looking for a buggy with off-set center diff! Fits my idea better.

But basically you're right Dabid.

[MetalMan]

I'll chime in here too.
Elsewhere the use of a hardened steel pinion being used with a steel spur gear has been determined to not be a good thing. There is nothing better than to use a plastic spur gear. You get lower weight, less rotating mass, and something that wouldn't lead to a problem for both the pinion and spur (if the spur gear got stripped).

[Dafni]

You're right, Metalman. The advantages are obvious. But a hardened pinion would be the easiest way out, in some cases.

Where are these "hardened pinions" everyone keeps talking about? I've thought of going to an all metal geared driveline after killing spurs in my Ofna 9.5, but know that the stainless ones Mike sells would die if they were used with the hardened steel spurs Ofna makes.

Oh, and Daf, I know there's different options for different people......an offset diff would actually work a bit better in some cases I bet.

[Dafni]

Indeed, Dabid.

I talked to Mike about hardening pinions, and he said he might come up with a batch. But I could also do it myself, if it comes to it.

[MetalMan]

Whoa David, you are awake earlier than usual :). Hardened pinions are an option (no doubt), but the cost of them is pretty high. I would hate to hear of a pinion and spur stripping after a long period of use, since together the cost for replacement would be about $35.

There is always the way that I chose, and that is no center diff, but a center slipper clutch (using Revo parts) with MGT mod1 spurs (very strong). I have yet to strip a plastic spur gear! But that is also somewhat caused by the slipper clutch absorbing the things it should.