Mid Motor Low CG Spec Carpet Monster

General discussion, builds/restorations, etc...

Moderators: scr8p, klavy69

User avatar
MotoObscura
Super Member
Posts: 212
Joined: Thu May 03, 2012 11:48 am
Location: Durham, North Carolina
Has thanked: 34 times
Been thanked: 20 times

Mid Motor Low CG Spec Carpet Monster

Post by MotoObscura »

The goal of this project is to make a dedicated racer so I can stop breaking parts on my original Worlds Car :shock:

I will be using a re-release worlds car as a donor, though admittedly few parts will be carried over.

Here is the plan:
-custom Single piece 1/8" 6061 aluminum plate chassis with narrow front end
-Mid Motor laydown transmission from a B6.1 with gear diff
-4mm carbon fiber shock towers front and rear to mount to truck front end and B6 transmission bulkhead
-Mounting for low profile shorty LiPo
-Traxxas Bandit RPM front and rear arms with Niki's rear arm mounts
-B5M wing mounts
-C hubs, knuckles, V2 shocks, and rear axle carriers from rere worlds car
-B4 wheels to try to keep width legal

Buckle up, things are gonna get weird.

Image
My current vintage racing lineup: Associated RC10 B2, RC10 Team Car, Losi XXT, XX4, XFactory X5, Schumacher CAT 2000 www.moto-obscura.com My Youtube Channel

User avatar
KidAgain
Super Member
Posts: 906
Joined: Fri Feb 01, 2019 7:11 pm
Location: So Cal
Has thanked: 290 times
Been thanked: 198 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by KidAgain »

Sweet I love projects like this
Visit Nostalgic RC in the business section or @nostalgicrc on Facebook for your custom RC10DS parts

Gone: RC10, Jrx-2 and Jrx-t
Current: 3 SC10 first gens, 3 SC10 Street Outlaw's, 12 RC10 DS’s, Carbon RC10T, RC10LSS,RC10L, RC10 Graphite,RC10 B44

User avatar
MotoObscura
Super Member
Posts: 212
Joined: Thu May 03, 2012 11:48 am
Location: Durham, North Carolina
Has thanked: 34 times
Been thanked: 20 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by MotoObscura »

Look what showed up today 8)

Image

Original worlds tub weighs about 5.5oz, without the nose plate. This hunk of aluminum weighs about 8.5oz, so hopefully I won't need to use as many chassis weights.

Time to countersink some holes and bend the nose.
My current vintage racing lineup: Associated RC10 B2, RC10 Team Car, Losi XXT, XX4, XFactory X5, Schumacher CAT 2000 www.moto-obscura.com My Youtube Channel

mikea96
Super Member
Posts: 3314
Joined: Thu Oct 01, 2009 8:34 pm
Location: Puyallup, WA
Has thanked: 206 times
Been thanked: 601 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by mikea96 »

Those look nice!

User avatar
MotoObscura
Super Member
Posts: 212
Joined: Thu May 03, 2012 11:48 am
Location: Durham, North Carolina
Has thanked: 34 times
Been thanked: 20 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by MotoObscura »

Image

Here's where I'm leaving it tonight. I need to order a few hinge pins and longer turnbuckles to fit the RPM arms, as well as figuring out a battery mounting solution for the shorty pack.
My current vintage racing lineup: Associated RC10 B2, RC10 Team Car, Losi XXT, XX4, XFactory X5, Schumacher CAT 2000 www.moto-obscura.com My Youtube Channel

Headling
Approved Member
Posts: 545
Joined: Tue Dec 06, 2011 11:17 am
Location: Kent , UK
Has thanked: 25 times
Been thanked: 29 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by Headling »

Looks great so far, did you make the chassis??
If in doubt go flat out!

User avatar
MotoObscura
Super Member
Posts: 212
Joined: Thu May 03, 2012 11:48 am
Location: Durham, North Carolina
Has thanked: 34 times
Been thanked: 20 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by MotoObscura »

Headling wrote: Tue Jan 21, 2020 11:45 am Looks great so far, did you make the chassis??
I designed the chassis and had it laser cut from 1/8" thick 6061 aluminum.
I countersunk the holes and bent the nose with a vice mounted press brake to about 25°
My current vintage racing lineup: Associated RC10 B2, RC10 Team Car, Losi XXT, XX4, XFactory X5, Schumacher CAT 2000 www.moto-obscura.com My Youtube Channel

User avatar
XLR8
Approved Member
Posts: 3019
Joined: Sun Feb 19, 2017 8:46 am
Location: north/central Alabama
Has thanked: 1274 times
Been thanked: 914 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by XLR8 »

nicholasdivitto wrote: Tue Jan 21, 2020 1:36 pm
I designed the chassis and had it laser cut from 1/8" thick 6061 aluminum.
Very nice!! 8)
Was the chassis plate laser cut at your place of business or by another commercial service provider? Link? :D
Doug

User avatar
MotoObscura
Super Member
Posts: 212
Joined: Thu May 03, 2012 11:48 am
Location: Durham, North Carolina
Has thanked: 34 times
Been thanked: 20 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by MotoObscura »

XLR8 wrote: Tue Jan 21, 2020 2:52 pm
nicholasdivitto wrote: Tue Jan 21, 2020 1:36 pm
I designed the chassis and had it laser cut from 1/8" thick 6061 aluminum.
Very nice!! 8)
Was the chassis plate laser cut at your place of business or by another commercial service provider? Link? :D
Cut by theses guys:
https://sendcutsend.com/
My current vintage racing lineup: Associated RC10 B2, RC10 Team Car, Losi XXT, XX4, XFactory X5, Schumacher CAT 2000 www.moto-obscura.com My Youtube Channel

User avatar
MotoObscura
Super Member
Posts: 212
Joined: Thu May 03, 2012 11:48 am
Location: Durham, North Carolina
Has thanked: 34 times
Been thanked: 20 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by MotoObscura »

Not a lot of progress made in the past week or so, but I did buy some B44 CVA shafts and the seem to be a good length for the Bandit rear arms and mounts. After taking some eyeball measurements, it looks like the front end is going to be too wide by about 10mm, so more than I can remedy by modifying the front axles and carriers. I think I'm going to have to design a new front bulkhead that still mounts like a 10T but is a little narrower.

The single piece aluminum chassis plate is now available for sale on my website.
My current vintage racing lineup: Associated RC10 B2, RC10 Team Car, Losi XXT, XX4, XFactory X5, Schumacher CAT 2000 www.moto-obscura.com My Youtube Channel

User avatar
jwscab
Super Member
Posts: 6506
Joined: Wed Jan 28, 2009 2:42 pm
Location: Chalfont, PA
Has thanked: 10 times
Been thanked: 453 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by jwscab »

apologies if this is where you got the info and you know all about it already:
check this listing over, it appears its the same build list you have there.

Front end:
-10T kickup ASC7305 and bulkhead ASC7207
-Inner hinge pin ASC7209
-Front arm RPM80492
-Outer hinge pin ASC8423 or ASC7357
-Caster and steering block ASC6210 + ASC6225
-T3/B3 front axle ASC7221
-B4 Front wheel ASC9588 or ASC9688

this is from Niki's rpm style build, he does mention the wheel nuts fall outside of 250mm width
https://www.rc10talk.com/viewtopic.php?f=35&t=40129&p=451764&hilit=rpm73282#p451764

User avatar
jwscab
Super Member
Posts: 6506
Joined: Wed Jan 28, 2009 2:42 pm
Location: Chalfont, PA
Has thanked: 10 times
Been thanked: 453 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by jwscab »

btw a quick bulletproof solution would be to run dynotech klien front arms. no redesign, just bolt on.

User avatar
MotoObscura
Super Member
Posts: 212
Joined: Thu May 03, 2012 11:48 am
Location: Durham, North Carolina
Has thanked: 34 times
Been thanked: 20 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by MotoObscura »

jwscab wrote: Tue Feb 04, 2020 2:43 pm apologies if this is where you got the info and you know all about it already:
check this listing over, it appears its the same build list you have there.

Front end:
-10T kickup ASC7305 and bulkhead ASC7207
-Inner hinge pin ASC7209
-Front arm RPM80492
-Outer hinge pin ASC8423 or ASC7357
-Caster and steering block ASC6210 + ASC6225
-T3/B3 front axle ASC7221
-B4 Front wheel ASC9588 or ASC9688

this is from Niki's rpm style build, he does mention the wheel nuts fall outside of 250mm width
https://www.rc10talk.com/viewtopic.php?f=35&t=40129&p=451764&hilit=rpm73282#p451764
Yup, that's where I got my info from, but it seems that a little more than just the wheel nuts will fall outside of 250mm.

The reason I'd rather stick with the RPM arms and design a new front bulkhead is because in my mind, the arms are the most likely thing to break and I'd like a relatively cheap (like $10 for a pair of RPM Bandit arms) replacement option that could probably be found at a hobby shop in a pinch. Nothin against Klein arms though, that would probably be the path of least resistance.
My current vintage racing lineup: Associated RC10 B2, RC10 Team Car, Losi XXT, XX4, XFactory X5, Schumacher CAT 2000 www.moto-obscura.com My Youtube Channel

User avatar
jwscab
Super Member
Posts: 6506
Joined: Wed Jan 28, 2009 2:42 pm
Location: Chalfont, PA
Has thanked: 10 times
Been thanked: 453 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by jwscab »

the klien arms are pretty much indestructible. you are much more likely to crack a shock tower, which will likely have to be custom in order to use a narrow bulkhead, so kind of a rock and a hard place to be honest......


could probably get away with just trimming the center out of the truck bulkhead to make it easy to narrow up.

User avatar
MotoObscura
Super Member
Posts: 212
Joined: Thu May 03, 2012 11:48 am
Location: Durham, North Carolina
Has thanked: 34 times
Been thanked: 20 times

Re: Mid Motor Low CG Spec Carpet Monster

Post by MotoObscura »

jwscab wrote: Tue Feb 04, 2020 7:20 pm the klien arms are pretty much indestructible. you are much more likely to crack a shock tower, which will likely have to be custom in order to use a narrow bulkhead, so kind of a rock and a hard place to be honest......


could probably get away with just trimming the center out of the truck bulkhead to make it easy to narrow up.
That's true, maybe I'll pick up some Klein arms to play with. I'd still like to investigate the possibility of an even narrower front bulkhead that still mounts to the standard truck kick-up plate.

I'm designing my own front shock tower for the narrow bulkhead and V2 shocks, rear tower too since it needs to mount to the B6 transmission case.
My current vintage racing lineup: Associated RC10 B2, RC10 Team Car, Losi XXT, XX4, XFactory X5, Schumacher CAT 2000 www.moto-obscura.com My Youtube Channel

  • Similar Topics
    Replies
    Views
    Last post
  • OPTIMA MID '87 WC Worlds Spec Ltd Ed.
    by XLR8 » » in Kyosho Forum
    47 Replies
    3012 Views
    Last post by sundevil67
  • Wanted - Losi Monster Truck Motor (MTM) Motor Decal Scan
    by WriteDean » » in Scan Requests
    0 Replies
    457 Views
    Last post by WriteDean
  • Vintage Checkpoint motor spec ??
    by camlchris » » in Vintage Electronics
    1 Replies
    888 Views
    Last post by helios1
  • UMP Dymond Motor Spec Chart
    by j.d.roost » » in Vintage Document Scans
    1 Replies
    1638 Views
    Last post by wts873
  • ROAR bans Trinity d3.5 17.5 spec motor
    by kaiser » » in Modern Electronics
    23 Replies
    3208 Views
    Last post by jayman24
  • Hobbywing XERUN Justock Zero Spec esc + 17.5T 3650 G2 motor
    by joey_zrl » » in Modern Electronics
    20 Replies
    4664 Views
    Last post by blk05wrx
  • 0 Replies
    1782 Views
    Last post by alcyon
  • Low, low Losi prices
    by MelvinsArmy » » in Losi Forum
    59 Replies
    3805 Views
    Last post by Mindwarp

Return to “RC10 Buggy Forum”

Who is online

Users browsing this forum: No User AvatarCommonCrawl [Bot], No User AvatarDotNetDotCom.org [Bot], No User AvatarFacebook [Bot] and 9 guests