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View Full Version : Help! I am looking for an Aluminum Motor Mount for my Mini Z?


Starsky5000
2011.06.11, 08:00 PM
I'm in some serious mess right now. I bought this Kyosho aluminum RM motor mount and I can't fit my Lamborghini body anymore because it's a 1/4" too short for the side mounts to fit into the slot and the wheels are not centered anymore.

This is the mount I bought:
http://www.kyoshoamerica.com/RM-Aluminum-Motor-Mount-for-MR_p_4388.html

and replaced the plastic rm mount that came with my Mini Z.

This is the Mini Z I bought:
http://www.kyoshoamerica.com/MR-03N-24GHz-Chassis-Set-JSCC_p_720.html

Does anyone know if their is an aluminum version of the stock plastic motor mount that came with this mini z i bought???

briankstan
2011.06.11, 08:39 PM
what lambo body is it. if it's the Mercielago body it's a 98mm body (MM) the mount you bought is for a 94mm body (RM).

Starsky5000
2011.06.11, 08:45 PM
It's this blue Countach:

http://shop.tinyrc.com/catalog/Kyosho-Mini-Z-Lamborghini-Countach-LP500S-MR-02-RML-GlossCoat-Au-p-18257.html

Also can you please provide me with a link to the mount that is the correct one?

Thank You.

pzchuky
2011.06.12, 01:14 AM
your t plate might just need to be moved forward or back.

that mount should work.

Starsky5000
2011.06.12, 05:26 AM
your t plate might just need to be moved forward or back.

that mount should work.

I moved it as far as I could.

unearthed name
2011.06.12, 08:55 AM
you should buy the longer t-plate for rm.

EMU
2011.06.12, 10:11 AM
The Countach is a 90mm body. The mount will do 86mm to 94mm with the RM (longer t-plate). The MM t-plate is roughly 4mm shorter than the RM t-plate. Therefore, you should be able to do 86 and 90mm wheelbase with the MM t-plate installed. With an MM t-plate, you would have to mount the t-plate on the rear most screw position on the chassis. With the RM t-plate, you would need to mount it in the middle position.

Starsky5000
2011.06.12, 12:04 PM
Well I put it back to stock without the rear oil damper in place. But still having problems with fitting the countach body on the stock chassis.

You see that carbon fiber damper thats attached to the motor mount with the long rod sticking out on top. It gets in the way when I mount the Countach body?

http://s664.photobucket.com/albums/vv4/Starsky5000/?action=view&current=IMG_1216.jpg

This is how the Aluminum motor mount is supposed to look when installed with the rear oil damper etc...

http://kyoshosan.blogspot.com/2011/01/new-route246-aluminum-motor-mount-for.html

But I still see that long rod that holds the rear oil damper in place. I wonder how he fits his bodies without that long rod getting in the way.

Please any help would be appreciated because i'm lost. I've been working 2 days on this problem.

This is the Mini Z I got:
http://www.kyoshoamerica.com/MR-03N-24GHz-Chassis-Set-JSCC_p_720.html

Also while i'm at it can you please suggest the fastest motor that this car can handle without damaging the electronics.

What do you think about the Kyosho X speed motor?

color01
2011.06.12, 04:46 PM
Uh... I think you already found out what the issue is, whatever you're putting on the rear end is contacting the Countach body. :confused: So, it's time to decide whether you want to keep the dampers (and cut a hole in the body), or keep your body in pristine condition. The Countach is listed as an RML chassis so Kyosho probably couldn't fit a damper underneath either. Kyoshosan installed the mount, yes, but I don't think he is fitting the chassis to RML bodies like you are trying to do.

Starsky5000
2011.06.12, 04:50 PM
Uh... I think you already found out what the issue is, whatever you're putting on the rear end is contacting the Countach body. :confused: So, it's time to decide whether you want to keep the dampers (and cut a hole in the body), or keep your body in pristine condition. The Countach is listed as an RML chassis so Kyosho probably couldn't fit a damper underneath either. Kyoshosan installed the mount, yes, but I don't think he is fitting the chassis to RML bodies like you are trying to do.

Thank You for the input. It really helped alot. First I want to keep the Countach in pristine condition. If I install this motor mount it seems i can't install the rear oil shock & damper that originally came stock with this chassis or use this Countach body. So is their a damper that would fit this aluminum motor mount that I can use?

Starsky5000
2011.06.12, 05:41 PM
I guess this is what I'm gonna have to do in order to get that Lamborghini Countach body to fit:

http://s664.photobucket.com/albums/vv4/Starsky5000/?action=view&current=MR-03RMChassis-RearMotorMount.jpg

RML chassis omits the top damper to generate lower chassis height for the RM chassis.

EMU
2011.06.12, 07:37 PM
With a little shaving of the body, you can get a damper/shock to fit... You can also look at the Atomic RML disc damper, which would have to be used in conjunction with their 90mm RM mount. The 90mm RM mount uses a 94mm RM style damper, which the RML damper is. It sounds very confusing... :eek:

color01
2011.06.13, 12:17 AM
If you can find it, the Atomic RML damper is the easiest way to do it. I believe it can also work if you get creative with an LM disk damper system. The Kyosho parts you already have should put the damper post in a position such that you can finish the disk damper assembly using your original disks + the LM damper plate. That way it won't be too low (you'll get more leverage for better damping) but it will just fit under the Countach body. I have not done it mysel yet though so I can't tell you whether or not you'll need to grind down some parts of your motor mount. :o

Starsky5000
2011.06.13, 05:05 PM
With a little shaving of the body, you can get a damper/shock to fit... You can also look at the Atomic RML disc damper, which would have to be used in conjunction with their 90mm RM mount. The 90mm RM mount uses a 94mm RM style damper, which the RML damper is. It sounds very confusing... :eek:

Thank You. Can you please provide a link to the Atomic RML disc damper and their 90mm RM mount???

I can't find it.

Thank You.

EMU
2011.06.13, 07:14 PM
Part number is AR-033-B. I checked HKS, but they are out of stock http://store.hkshobby.com/product_info.php?products_id=1918
I found a different link (Canadian) http://competition-rc.com/catalog/shopping_cart.php

I personally feel that the best option is cutting the body a little and using a standard RM Disc Damper setup rather than the RML. I was just stating that there was an option...

Starsky5000
2011.06.13, 08:44 PM
Part number is AR-033-B. I checked HKS, but they are out of stock http://store.hkshobby.com/product_info.php?products_id=1918
I found a different link (Canadian) http://competition-rc.com/catalog/shopping_cart.php

I personally feel that the best option is cutting the body a little and using a standard RM Disc Damper setup rather than the RML. I was just stating that there was an option...

What's the difference between RML and RM? I thought they were the same.

xmodcanuck
2011.06.13, 09:20 PM
Thank You. Can you please provide a link to the Atomic RML disc damper and their 90mm RM mount???

I can't find it.

Thank You.

Maybe before you run off and buy another mount you should figure out what the wheelbase is of the Countach body you have. There is more that one wheelbase to the Countach.

MZG11OP-B Lamborghini Countach LP400 P.Orange 90 1N,0W 90RM
MZG316BL-B Lamborghini Countach LP 500S Blue 94 2N,3W 94RM, 94MM

Since you have said that you have the blue one, your wheelbase is 94mm. You can use either a RM or a MM. I personally like the MM better, but you have to make that decision yourself.

Not all bodies can use all suspension parts that are available. Just because you can but a tri-shock system doesn't mean it will work under your body. You need to decide what you want from your car and what you're going to use it for. If you're not racing it in some form with other people on a track, keep it bone stock for running around the house.

EMU
2011.06.13, 10:07 PM
All Countach have 90mm wheelbase. I know this for fact, as I have had both versions.

RML is the same as RM, however, it is for bodies that have a low rear decklid, and cannot accomodate the top shock. So R=Rear, M=Motor, L=Low.

If you cut into the body a bit, you can accomodate a standard RM suspension setup such as the 3Racing RM DPS system, which I consider one of the best DDS for least amount of money.

You may also be able to accomodate the Atomic or PN 90mm MM setups. I dont know if I have my countach available to test fit and see if it clears, but if I find it I will (it is probably in storage at my parents house).

Both of the following disc dampers are for RM or MM use. It comes with an adapter that works on the stock RM mount, or the PN RM or most Atomic RM (minus their 90mm version) that has the two posts to mount the damper to in the same position as the stock. I dont think the 3Racing RM mount would need this adapter... Although, I am not very fond of the 3Racing/R246 RM mount due to its gear mesh adjustment.
http://www.reflexracing.net/proddetail.asp?prod=MR3-15%2FWO
http://www.reflexracing.net/proddetail.asp?prod=KZ-04%2FBU%2FWO

Starsky5000
2011.06.14, 03:50 PM
Would it make a difference if I got this Kyosho MM Motor Mount?

http://www.minirc.com/on-road-rc-cars/128-kyosho-mini-z-1/parts-upgrades-2/drivetrain/2wd/chassis-parts/route-246-mini-z-mr0150203-mm-alloy-motor-mount-blue

Also is their a difference in performance when the motor is behind the rear axle (RM) vs the motor being in front of the rear axle(MM)??

Also i'm sorry about all the questions i'm a newbie to the Mini Z's (there's actually so much to this little car I couldn't believe it when i finally got it) and am learning along the way.

EMU
2011.06.14, 04:17 PM
That mounts minimum wheelbase is 98mm. So i would make a huge difference if you plan to use the Countach.

There is a pretty noticeable difference between RM and MM performance. RM gets power down better on corner exit, MM can be driven more aggressively into the corner and carries more corner speed. RM can be somewhat unstable entering corners aggressively because the mass of the motor is behind the rear axle. This will increase the pendulum effect as the car comes off throttle entering corners, and as you get on throttle you lose a good deal of steering as you transfer the mass towards the rear tires.

While both are different, I will not tell you one is better or worse than the other. That is entirely dependant on how you drive. In general, a newer racer may be more comfortable with the RM, as you cant really lose the rear end as you get on throttle, but you can lose it entering the corners, so you train to enter the corners smooth, wait until the apex is clipped, then apply throttle for the exit to the straight. In general, almost all cars driven at the highly competetive levels are MM. Mass kept between the front and rear axles typically performs the best.

Starsky5000
2011.06.16, 05:56 AM
Part number is AR-033-B. I checked HKS, but they are out of stock http://store.hkshobby.com/product_info.php?products_id=1918
I found a different link (Canadian) http://competition-rc.com/catalog/shopping_cart.php

I personally feel that the best option is cutting the body a little and using a standard RM Disc Damper setup rather than the RML. I was just stating that there was an option...

Okay who makes the BEST RM Disc Damper setup?

Can you please provide a link to where I can purchase it?

Also I notice they are two screws mounted onto the motor mount so is their a motor mount that will match the RM Disc Damper setup and at the same time fit the Lamborghini Countach body (Wheelbase: 90MM)?

Thank You.

Starsky5000
2011.07.05, 01:33 PM
Part number is AR-033-B. I checked HKS, but they are out of stock http://store.hkshobby.com/product_info.php?products_id=1918
I found a different link (Canadian) http://competition-rc.com/catalog/shopping_cart.php

I personally feel that the best option is cutting the body a little and using a standard RM Disc Damper setup rather than the RML. I was just stating that there was an option...

I am getting the AR-033-B. But can you please provide with with a link to an RM motor mount that will fit this damper system?

Please and I thank you very much for all your help you've given me.

EMU
2011.07.05, 07:18 PM
I am getting the AR-033-B. But can you please provide with with a link to an RM motor mount that will fit this damper system?

Please and I thank you very much for all your help you've given me.
You are welcome :)

The only available motormount that will work with that damper for 90mm wheelbase (without modifications) is the AR-220 which is a 90mm Rear Motor mount. http://store.hkshobby.com/product_info.php?products_id=2467

This mount uses an RM t-plate in the long position, essentially the same as a standard RM mount at 94mm. This keeps the damper the same as it would be for 94mm, while using the 90mm wheelbase. This motormount CANNOT be used at 94mm. The damper CANNOT be used for a standard RM mount at 90mm. It can only be used in the 94mm configuration, which is why the 90mm mount is required to be used with the damper at the 90mm wheelbase.

I personally would use an Atomic MM mount, but this should be easier to install and setup for a newer racer. I would use a stiff t-plate and heavy springs on the damper discs.

Hope to see you at a local track soon, you are in NYC correct?