Spare/used parts/OIN Mid Motor RC10 build

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n20capri
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Spare/used parts/OIN Mid Motor RC10 build

Post by n20capri »

Ever since I got my Lazer ZX new I've always wanted to do a 4wd RC10. I've also always wanted a mid motor RC10 and of course something super fast. We were pretty fast back in the day but with todays bruchless setups it's seems even more feasible. Additionally, not too long after I got my RC10T I threw some buggy wheels and body on it but it just never looked (or felt) right...

After getting back into the game I've become familar with the term OIN - as such I'll be able to take some spare parts I've collected and make something cool that I originally thought about 25+ years ago! I'm older, wiser and richer (well, I'm not 10 anymore! lol) so the plan now is for a mid motor top speed runner. Seeing a couple of the other mid motor builds lately is super cool - luckily mine is a bit different so that's good...keeping things fresh.

Been building this for a while now - just getting around to finding some pics. Between my camera, my wifes old camera, her new camera and 2 cell phones I'm digging through everything trying to find them! lol. Besides spare/use parts I'll be doing some 3d printed stuff as well. As I find more pics I'll post them...

Being a gear-headed drag racer through and through...I'm trying to keep this a "street car" if you will! :-) I want this to be a top-speed runner but also maintain 2.2" buggy wheels and a buggy look (not lowered with touring wheels etc). After going fast I want to be able to race it in the dirt with it without going crazy changing stuff other than tires.

With that being said, my first thought for bracing chassis was what I'd call a "sub-frame connector" of sorts. Trying to take what I've learned from real life hot-rodding.
Ok on to the pics...

This is sort of what I had in mind. I wanted to cut down the sides (not shown in illustration) and then use them as my "connectors". I was going to use that as-seen-on-tv stuff Alumaloy to "weld" everything together. HOWEVER, as good as it works for aluminum repair it just wasn't working like I'd hoped. I've used it before for fixing aluminum in one spot...but when doing multiple, or larger spots it just doesn't work great...it's basically soldier...once heated back up it re-melts. Back to the drawing board for something less cool. I wasn't up for taking it to someone for tig welding and I knew my mig welder would work but it would have been more work than it was worth.

(a cnc milled version out of billet was over $1000 - so that was out too! haha)
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Here are some pics of sorting through parts...

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Starting to mod bulkhead...

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Modded motor plate on the stealth...

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This is a set of Kyosho bellcranks with 5/32 x 5/16 bearings. Worked perfectly but broke after a small crash...ended up with a set of NixConcepts bellcranks.

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Bearings loaded up
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Mocking up how I'm going to mount the trans on some scrap metal...
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Laying things out on the chassis...It's an A stamp which is what I wanted...(luckily I had that B stamp pictured above too - more on that later...

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Ok on to hunt down more pics...enjoy.

n20capri
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by n20capri »

More pics...

At this point I was trying to do other stuff while trying to figure out what to do with the chassis. I was originally wanting to cut the sides down but since I'm not using them as "subframe connectors" anymore I'm afraid to start cutting lol.

Rebuilding T shocks

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Stripped the gold...Loving the bare finish...

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Modified part of the stock motor plate...I will be utilizing this famous part of the car...it's not an RC10 w/o that part on the back! lol

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Stealth rebuilt and flipped...

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Various hardware being sorted...

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Some new stuff...Bumper, bearings, turnbuckles and rod ends...

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Enjoy...

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erichevy
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by erichevy »

Nice pics and documentation of your build. Looks like a great project so far.

n20capri
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by n20capri »

erichevy wrote:Nice pics and documentation of your build. Looks like a great project so far.
Thanks! More pics hopefully later today or tomorrow.

n20capri
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by n20capri »

Pics...

Got everything layed out and starting to mock-up

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I think this was initial setup before starting to make the chassis brace. Before knowing stock arms weren't gonna work because I only had the tires! lol

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Then the brace set in place (it's 2 pieces)

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Then everything drilled and mounted...

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My brace goes all the way to the back of the car mounting to the curve of the chassis sort of like the stock motor plate does...

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Mocking up with a T rear tower because I wanted the brace to go all the way to the back. I ended up setting the rest of the rar up with everything from a T after realizing the stock arms weren't going to work with the B4 hex wheels I got. It's not as bad as I thought with the B4 wheels cause they sit in real far but it's still a bit wide for my taste. I got a custom T inspired rear tower made and some 3d printed arms to bring everything back in. Additionally, the dogbones are a bit short so finding the right length dogbone is the challenge (still haven't resolved that). I initially shimmed them for first drive but it ain't right. lol

mid chassis, trans, bulkhead and rear chassis all tied together.

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Final shape of the brace before powdercoating. After seeing the awesome brace for the NIXM I might tackle doing up a 3d printed version to fit my setup...but we'll see.

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You'll also notice how far the trans is forward...as a high speed runner I'm trying to minimize the tendency to wheelie. I've also mounted the rear tower far rearward because I wanted to mount the shocks facing forward like the modern AE buggies.

I have more mock-up pics on my other phone...have to find it though...

Enjoy...

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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by LTO_Dave »

I love that rear brace design! It reminds me of the old A&L piece.

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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by Bottom Feeder »

Your rear arm mounts are on backwards. Just a heads up.

knucklebuster
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by knucklebuster »

Looks good! Great minds think alike :wink: Here is my mid motor mahem http://www.rc10talk.com/viewtopic.php?f=35&t=3305#p30432

n20capri
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by n20capri »

LTO_Dave wrote:I love that rear brace design! It reminds me of the old A&L piece.
Thanks - not familiar with the A&L piece...pics???
Bottom Feeder wrote:Your rear arm mounts are on backwards. Just a heads up.
yeah...just mocking things up in the pics...
knucklebuster wrote:Looks good! Great minds think alike :wink: Here is my mid motor mahem http://www.rc10talk.com/viewtopic.php?f=35&t=3305#p30432
NICE! Super cool. Got any more progress pics of yours?

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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by knucklebuster »

I put the other project to bed and decided to go with a Track Master for a mid motor build: http://www.rc10talk.com/viewtopic.php?f=33&t=22596

I am looking forward to seeing yours through to the end. I think it was a good idea to move the trans forward to avoid cutting down the section of the chassis that would normally attach to the bulkhead.

My braced chassis flexed slightly more than a standard buggy but was intended for running on the street. I think your braced chassis should be less flexible. BTW the brace through the tower design is killer 8)

n20capri
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by n20capri »

Weird...I posted a bunch of pics earlier...where did the post go? Hmmm maybe I forgot to hit submit??? lol idk. Damn. Will re-do them tomorrow...

n20capri
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by n20capri »

Had to mock it up with the tires to see how she looks (just tires no rims! lol)

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Everything dyed ready for final mock-up

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Nose plate powder coated and mocked-up

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Motor plate powder coated

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Brace powder coated

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Chassis powder coated

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More later - Enjoy!

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PlastiZapCA+
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by PlastiZapCA+ »

Looks fantastic! Looking forward to seeing the completed car.

n20capri
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by n20capri »

Front end together...(with the klein arms)

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My 3d printed front arms. Modeled after the Klein versions...a little nicer looking though...

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n20capri
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Re: Spare/used parts/OIN Mid Motor RC10 build

Post by n20capri »

PlastiZapCA+ wrote:Looks fantastic! Looking forward to seeing the completed car.
Thanks!

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