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Old 02-16-2009, 11:34 PM   #1
Cainam
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Kershaw Designs nitro to electric conversion review, part 1

Just got home to the Seattle area from Guam

I ordered a Kershaw Designs nitro to electric conversion kit while I was there, and it was waiting for me when I got back. Part 1 of this review is going to concern the kit and parts, and once I get everything sorted out and put together, I'll go more into how well everything works.

The instructions are fairly clear, and even have pictures. There is also a list of included parts. However, the parts included didn't match those listed. I seem to have several extra pieces, and parts bag #2 (Dogbones) was nowhere to be found. . . It isn't an extended chassis, and I checked the length between the Traxxas and the K.D. and they are the same, so. . . ??? I decided to just use the stock drive shafts (they did fit.)

The design and build quality appeared good (MORE ON THIS LATER), but - and this has been commented on before in this forum - the finish lacks the polish of a piece from Integy. As long as it also lacks the weakness of Integy junk, that's fine with me, though. Polishing and dressing aluminum is easy, but time consuming, so this keeps the cost down. I try to keep the thing upright so I don't have to look at the chassis, anyway.

The Traxxas chassis gets it's strength from the bends in the aluminum. The K.D. is flat, but it is slightly thicker than the stock part, and it has a dual layer. The bottom plate should add strength, as well as giving you a place to put the batteries.

The Revo is a VERY nice design to work on, so swapping out the chassis is surprisingly easy. All of the servo locations are different, though. The steering linkages needed to be replaced with much shorter ones, but the reverse and brake linkages will work with some modifications. I'm not sure if the chassis will allow the use of a rear brake if you decide to go with a center diff, but I probably will look at that later.

Everything was going well with the conversion, UNTIL. . . I picked the truck up with the front bumper, and the body mount popped out of place. The stock chassis has two holes in the very front, and is cut straight across, so it has a flat nose. The K.D.'s nose is notched back about 1/4" or so in between the bolt holes, and ground a bit thinner (to match the stock thickness) for about another 1/8". The body mount hooks over the end of the chassis in the front, and holds the upper suspension pins in place. With the area that it hooks onto removed, it is really only held in by the single screw in between the shocks. Right now, I'm at an all stop until I can either discuss the problem with Kershaw Designs, or figure out a way to attach the body mount. I have no idea why the chassis was cut like this.

I'll be updating this review or adding a part 2 as things progress.
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Old 02-16-2009, 11:46 PM   #2
Brushless Moose
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the thing about the body mount sucks...
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Old 02-17-2009, 11:44 PM   #3
Cainam
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Update - Dan at Kershaw Designs got right back in touch with me about the problem. It is my guess that the upper chassis will need to be replaced. I'm hoping I can get this sorted out quickly and get the beast running. . .
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Old 02-17-2009, 11:54 PM   #4
Brushless Moose
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That is never a good sign when someone breaks a new product so easily...
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Old 02-18-2009, 01:42 AM   #5
DanZman
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we want pics. I dont think many people have seen a kershaw chassis for real, so post up as many pics as you can
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Old 02-18-2009, 03:42 AM   #6
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this forum is useless with out pics
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Old 02-18-2009, 09:45 PM   #7
Cainam
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Yep, pics help. Been very busy, but no excuse. . . The top three pics are of the problem area with the K.D. chassis. After a few emails to Dan at Kershaw, he has decided to send me another top plate. I stopped working on assembly at this point in the build, since I am just going to have to pull it all back apart.











Last edited by Cainam : 02-18-2009 at 09:50 PM.
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Old 02-20-2009, 12:42 AM   #8
crrccarz
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Cainam,
received my kit yesterday before leaving for NM where my son lives. So is the problem with the bottom or top main plate, I don't understand? Also should I just email dan when I return next week and tell him I have the same kit as you and request the same fix?????? Help and input from you on this is much appreciated!!

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Old 02-20-2009, 07:13 AM   #9
Cainam
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The problem is with the top plate. Take a look at the 2nd picture down. I have the K.D. and the Traxxas chassis front ends nose to nose. The front shock tower clips over the part of the chassis that on the K.D. was removed. I think that the one I got may simply be an error. Dan has been great to work with, so if there is a problem, I'm sure he will work with you to make it right.
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Old 02-20-2009, 09:33 AM   #10
J.A.T.O.3.3
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Wow , that looks pretty KILLER !

I would have taken a dremmel or a smooth file and beveled the edges around the chassis , I hate sharp edges .

I hope this holds up for you , it looks pretty awesome !
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Old 02-20-2009, 03:40 PM   #11
crrccarz
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The edges are not sharp. They have an edge created by the waterjet cutter but it is not sharpa and will not cut you. I will take a little of that off before i get mine powdercoated metallic black.

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Old 02-20-2009, 03:46 PM   #12
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Lookin' good man!
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Old 02-21-2009, 02:14 AM   #13
Stone_Cold
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Will it be a 6s MMM beast?
How's it holding up so far?
BTW the front, rear & center CVD's for the 3.3 Nitro Revo will work. (as per the e-mail I got from Dan).
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Last edited by Stone_Cold : 02-21-2009 at 02:23 AM.
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Old 02-21-2009, 11:09 PM   #14
Cainam
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[quote=Stone_Cold]Will it be a 6s MMM beast?[quote]

5s and MMM, I think. Once it is finished, I'm dropping a set of 5s 5000mAh Zippy packs in parallel in it. Should be quick with good run time.
http://www.*********.com/*********/s...0C_Lipoly_Pack

Quote:
Originally Posted by Stone_Cold
How's it holding up so far?

It isn't, yet. Dan is sending a replacement upper plate, but I haven't gotten it yet.

Quote:
Originally Posted by Stone_Cold
BTW the front, rear & center CVD's for the 3.3 Nitro Revo will work. (as per the e-mail I got from Dan).

I was hoping they would. I'm just building up a fleabay special, and the only thing on it that isn't stock is the K.D. chassis and the 17mm hubs - and even those come stock now. . .
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Old 02-28-2009, 12:14 AM   #15
Stone_Cold
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I've been wanting to get 1.
How's the quality? (fit, finish & chassis thickness)
Seem quite durable?
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Old 02-28-2009, 07:22 AM   #16
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I'd take the stock erevo chassis over that any day of the week... sorry just had to be said.
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Old 03-01-2009, 12:46 PM   #17
Cainam
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Quote:
Originally Posted by 8ight-e
I'd take the stock erevo chassis over that any day of the week... sorry just had to be said.

The reason I went with the K.D. chassis is very simple. The Traxxax electric chassis is just far too limiting for battery choices. The biggest you can fit in a stock chassis is two 2s 8000mAh (for 4s 8000mAh) or 3s 5000mAh (for either 3s 10000mAh, or 6s 5000mAh.) The batteries I have on order are 5s 5000mah, which will give me a 5s 10000mAh setup. You just can't do that stock. If I wanted to make it look better, I have a Dremmel and some polishing compound, I'm just concerned with function more than pretty.

Also, I've got the replacement upper plate in, and I'm going to continue this in a new thread, part 2.
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Old 03-01-2009, 12:49 PM   #18
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Quote:
Originally Posted by 8ight-e
I'd take the stock erevo chassis over that any day of the week... sorry just had to be said.
Agreed. I thought the stock chassis was ugly...
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