Dan's RC10-4 conversion project

[DanB4]

Hi All,

About a year ago I scored a new partial original RC10 worlds kit and new partial RC10 Team Car kit in a bargain deal. I sold some of the bits like the worlds chassis (thankfully before the rere was announced) but built a Worlds/Team Car hybrid new car from the remainder of the parts - which ended up looking like this:

http://i7.photobucket.com/albums/y260/SDRCC/20131231_154331_zpsqrcgqath.jpg

After it sat on the shelf for a few months, and in my never ending search for an Intruder EX, I decided to sell it.

However, inspired by Jeff (Gomachv) and Mini's threads on 10talk I decided to pull it from sale and start a project to convert it to 4wd in the style of the old and extremely rare ($$$$) MIP 4-10 legend kits I always drool over.

I had plenty of spares from years of collecting so was excited to get started!

I liaised with Mini and Jeff at length and set about getting to work.

The pulleys were available from RCRacingUK so I bought 2 of them, but could only find 1 layshaft (another is en route as I type and will hopefully not get lost in Omans hopeless postal system) - the pinions used for the idler which drive the belt/pulley combo were purchased from eBay USA and I managed to source an original belt for an MIP Legend (which was not cheap!).....there are a few rumours of MIP re-re'ing the 4-10 conversion but I am impatient and this is a lot of fun!

The essence of the build is to retain the Stealth box at the back of the car and use another stealth up front, which will be in a laydown orientation - mounted to a custom shock tower, bolted to a custom nose plate. The front mounts have also been modified to accomodate the front gearbox.

Due to the belt running off the idler shaft, the belt will run in the opposite direction to the motor and wheels, i.e. when the car is moving forwards the belt will be running backwards - this is cool and the same as the original MIP kits.

The rear gearbox was quite straightforward, make holes for the flanged bearings in the stealth casings and fit the pulley/pinion.

The front however as you can imagine takes some more thought - I initially started using Optima Mid wishbones (as I have a few) and hubs/carriers but tonight I'm going to try RC10 front wishbones with the Mid hubs and carriers.

Luckily I had some Kyosho Lazer CVD's which are a perfect fit - just need to check the length once the RC10 arms are on.

There isn't much clearance for the steering system so I got the dremel out and it should now be ok.

Once the 2nd shaft arrives for the front g/box I'll be able to route the belt and cut the rear bulkhead/tower.

Anyway a few pics, more to come - hope you like it so far :)

http://i7.photobucket.com/albums/y260/SDRCC/20140804_233119_zps6bhodq49.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140805_220304_zpsiriwkvew.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140805_232329_zpscpifsofn.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140806_081001_zps0bboy9xk.jpg

More soon! :)

[Peakey]

Yet again more cool stuff, I'm gonna start to ignore you threads :p

[DanB4]

Yet again more cool stuff, I'm gonna start to ignore you threads :p

Noooo Justin I'll miss your smiling....smileys!

[OptimaFan]

Dan, you are having too much fun. :D

[gomachv]

It's addictive! I just shipped off my prototype and have a fresh ReRe worlds to start on V2.0. This time I'm going b44 knuckles. People don't seem to care about era correct, but I'm a firm believer in staying brand specific when possible

[DanB4]

Hi Jeff! It is addictive like most things with R/C cars :) I'm definitely an addict.

This is how she sits as of now - I messed up a set of nose tubes whilst cutting them but luckily had some spares. Steering has more than enough clearance now and I am probably going to cut the front stealth casing to make it lower profile - then fashion some kind of rubber cover to seal it - that's the plan anyway! Still waiting on the 2nd shaft so I can start fitting the belt and cutting towers/bulkheads!

I'm going to try and fit an RC10 Sidewidner body as this thing looks too modern.

http://i7.photobucket.com/albums/y260/SDRCC/20140806_201259_zpsd12w9npp.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140806_201253_zpsce4vazav.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140806_210156_zpsbndoo1md.jpg

[gomachv]

Sidewinder will be perfect! The front wing is about perfect with the trans.

I'm going to have to try the center idler mod like you an mini have played with. I really like running off the topshaft for clearance reasons, but the idler style would be a whole lot easier

[minimini]

Hi Jeff, without your brilliant idea of using the front stealth..... we couldn't extrapolate this project further :)

Million thanks Jeff !!

[gomachv]

Since you guys are only using half the stealth, I wonder if any cad people want to draw it up and send it to shapeways:woot: that would be awesome

[DanB4]

Well I stuck in some electrics last night and gave her a test run today and wow! Exceeded all my expectations, it runs great! Thanks again to Mini Eason and Gomachv (Jeff) for the ideas :)

Pre-electrics:

http://i7.photobucket.com/albums/y260/SDRCC/20140808_173329_zps10l03piv.jpg

Electrics used:

ESC: Novak Hammer Pro
Motor: Old 19 turn brushed
Servo: Low profile core
Battery: 4200mah shorty LiPo

Wheels: Avante Black Special Pink
Tyres: Vintage worn Schumacher CAT Full spike (1.9"?)

Whilst I'm waiting for my Sidewinder body to arrive I found an old unknown temporary orange body to use. Next I may remove the front Stealth and Dremel it to remove the top part as there is no topshaft used at the front, then fabricate a dust cover to keep the innards clean.

Hope you enjoy the videos :)

Image before running:

http://i7.photobucket.com/albums/y260/SDRCC/20140809_183246_zpsjzrc6hwq.jpg

The video is in 2 parts as my daughter accidentally pressed the home button on my phone:

Video Part 1

http://youtu.be/unuItJ_B7S4

Video Part 2

http://youtu.be/6hLR3qSeP14

[gomachv]

Very nice Dan! Always nice to see variations of the concept!

Any 3d model era out there wanna make us cases?!

[Peakey]

Looks good dan slides well on all that sand

[OptimaFan]

Good speed and handling so far. That old 19T has some zap left.

[DanB4]

She's now finished....here are some final pics for you all, hope you like the finished article :)

http://i7.photobucket.com/albums/y260/SDRCC/20140901_213912_zpsqwutdx6h.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140901_213906_zpssyfedftt.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140903_230554_zpsys3svjh2.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140903_230549_zpseusiorkg.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140903_230601_zpszikrnjeg.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20140903_230609_zpsdfhwcag7.jpg

[Peakey]

As always very nice dan :drool: any more close up pics of the completed drive train.

[OptimaFan]

Nice result.You're really into pink lately, or not? Also pink wheels on your Optima racer. Pink is the new black? :D

[alcyon]

Amazing, and with double stealth, it will be totally undetectable by radar !

[Devin Cast]

Hi Dan, Was thumbing through the internet and came across your beautiful 4wd dual stealth conversion. I have always wanted a 4wd RC10, but since the 4-10 conversion is so INSANELY expensive on ebay these days I have been unable to find the $1,000 to buy the kit. I have always wanted to do a 4wd coversion. I was hoping/hoping if you might be willing to help me with some of the details for your conversion. I always loved the RC10 4wd coversion, but could never really afford the conversion when it came out.( lunch money and a weekly allowance would only go so far). Let me know your thoughts on if you can help.
Thanks in advance
Devin

[DanB4]

No problem, happy to help.

I haven't updated the this thread in a while - the car has been revised and is now running much more efficiently since I eliminated the 2 tensioners in the drivetrain and got a custom M3 belt. Also now using RC!0 front arms, Yokomo wheels but still the Mid hubs and carriers.

http://i7.photobucket.com/albums/y260/SDRCC/20141019_213953_zpsmzxsz5cq.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20141019_213937_zpsoibgicaq.jpg
http://i7.photobucket.com/albums/y260/SDRCC/20141019_213917_zps9ewmpqzw.jpg

I'm also trying to get a sealed 2 gear front stealth case made, at the moment I have chopped the top part of the front gearbox.

Parts used so far:

1 x Gomachv nose plate, shock tower and upper link standoffs
1 x rere Stealth case (used in rear, original stealth used in front)
2 x Robinson Racing 26 tooth 5mm 48pitch pinions
2 x 3Racing 18 tooth Pulleys 3RAC-3PY/18
1 x custom M3 belt
4 x 5x8mm flanged bearings
2 x Tamiya FF03 spur gear shafts
2 x Kyosho Optima Mid Hubs
2 x Kyosho Optima Mid Hub Carriers + 4 wheel bearings
4 x Kyosho Optima Mid Kingpins
2 x Kyosho Turbo Optima Mid UJ's
Yokomo adaptors
1 x Spare Battery cup, cut for shorty LiPo
Miscellaneous screws and nuts

[DanB4]

I made a bumper - here's how she looks and goes now - I'm going to try a modified very soon :)

http://youtu.be/xE5oK_46A7U

[OptimaFan]

Looks really nice, Dan!

[Peakey]

More power required :thumbsup:

[OptimaFan]

Btw, what exact motor is this and what total gear ratio do you have now? It seems to be geared pretty well, with good balance between speed and acceleration.

[Devin Cast]

thanks for the video. I started working on my wish list of parts that you provided(thx). I was curious about a few things. First, the custom belt you ordered, where did you get it? and what were the specs? Also you had mentioned the "Gomachv nose plate, shock tower and upper link stand offs". so you have to have any information on those (templates?) or were they just modified to fit? Very curious. Once a again, love the look of the car and I really appriecate your help.:thumbsup:

[Peakey]

Dan will point you in the right direction of the belt which probably came from here https://sdp-si.com

And Gomachv is a guy called Jeff who is a very handy guy in US that can make more or less anything Rc related you want :thumbsup:

[DanB4]

Hi Devin,

The belt is from toughracing and is 201 tooth (603mm) S3M pitch belt 4mm wide.

As Justin says, Gomachv is a great guy on RC10TALK who provided the customised nose plate and shock tower + standoffs for the car. He has also built a 4wd RC10 variant but he takes his drive from the top layshaft.

Dan :)

[gomachv]

As Dan stated, my drive system is a bit different but the overall concept is the same. I really just wanted to give people some flexibility. The other goal with the one I built was to keep it era correct. The new version will use easier to obtain b44 parts. Only the front case and carriers will be printed. Per dan and MiniMini's request i will have a two gear front box as well, for those that prefer the MIP style drive.

Dan, that thing is looking AWESOME! Great work!

[Devin Cast]

Hey guys thanks for the feed back, I really love the way Dan's car came together. I am thinking I want to try and do the front swing arms from the WC RC10 and B44 steering knuckles and rear b44 hubs ( I read that I should use the B44 rear CVD axles. Any suggestions. This is your guys world, I'm just playing in it:thumbsup:
Devin

[DanB4]

As Dan stated, my drive system is a bit different but the overall concept is the same. I really just wanted to give people some flexibility. The other goal with the one I built was to keep it era correct. The new version will use easier to obtain b44 parts. Only the front case and carriers will be printed. Per dan and MiniMini's request i will have a two gear front box as well, for those that prefer the MIP style drive.

Dan, that thing is looking AWESOME! Great work!

Jeff, I can't wait for my 2 gear front case :) it'll really finish off the car.

I've been thinking, it'd be perfect if the case could mount to a stock front tower, retaining the original nose plate and tower so that the look remains full RC10, just like a real 4-10 legend......the case could mount with 2 screws through the lower horizontal of the front RC10 tower and then somehow have an integrated lower mount to screw to the chassis/nose plate with a bit of drilling this could be possible, what do you think?

Glad you all like the car - makes me happy I did it :)

Dan

[gomachv]

That's similar to what we are doing. It will bolt to both the chassis and tower to make a very solid assembly, without drilling the chassis.

[OptimaFan]

Glad you all like the car - makes me happy I did it :)

Dan

We do, kudos for a well executed mod. Can you look into this question btw?


Btw, what exact motor is this and what total gear ratio do you have now? It seems to be geared pretty well, with good balance between speed and acceleration.

[DanB4]

Henk it's from an old Carisma M40 rtr touring car. I did an event back in 2009/2010 where CML sponsored with around 10 cars for public participation sessions and the motors were installed in them. They were too fast so I changed for silver can 540's for the public to use.

Incidentally it's this very motor that I used in my video when racing my Turbo Optima Mid Special against modern brushless cars.

http://youtu.be/G3-PiMoPufA

[DanB4]

That's similar to what we are doing. It will bolt to both the chassis and tower to make a very solid assembly, without drilling the chassis.

Eagerly waiting for that buddy :)

[OptimaFan]

Henk it's from an old Carisma M40 rtr touring car. I did an event back in 2009/2010 where CML sponsored with around 10 cars for public participation sessions and the motors were installed in them. They were too fast so I changed for silver can 540's for the public to use.

Incidentally it's this very motor that I used in my video when racing my Turbo Optima Mid Special against modern brushless cars.

http://youtu.be/G3-PiMoPufA


Ah, I remember you mentioning that motor a while back. But since that was in your Mid, I thought this would be another one, and didn't consider it would be the same type/one.

And what total gear ratio is it running?