Original SCX Transnission vs SCX10 II Transmission

[Col_Sanders]

Original SCX Transmission vs SCX10 II Transmission

I know we have seen photos of the two transmissions side by side, but I dont recall seeing any pictures with them sitting next to one another while mounted on the skid.

Using the old style transmission moves the motor weight forward a noticeable amount. The II setup is much longer and even though the transfer case does have some weight to it, overall the weight is more biased towards the motor end.



Here you can see the difference between the motor (and output shaft) height. Using the old trans drops the motor weight down a good bit, but some of that is probably counteracted by the transfer case being so low on the new trans.



Installing the old transmission was easy. Aside from removing the stock trans and skid and installing the OG stuff in its place, it just required finding new lengths for the driveshafts (longer front, shorter rear) and putting a nut on the front upper link since there is no mount on this skid.

I had other plans for this motor but it may end up staying here.

 

[Lv6spd]

I like the new trans, gearing seems good and so far its been pretty tough. In your photos the trans weight is defiantly further towards the rear until you flip the trans and skid and all that weight gets moved towards the front. Overall the OG setup is tried and true but I would still run the new one in any of my old trucks if I had another scx10 II transmission.

 

[Col_Sanders]

If I didnt have an old style trans with steel gears sitting here, I would have just flipped the new one around.

 

[Jeepy84]

Well considering you almost have to mirror the OG to limit torque twist, I'm not sure how much in the grand scheme this comparison is fair. Throw in the hypoid high pinion axles and it's a no contest situation, isn't it?

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[Col_Sanders]

Well considering you almost have to mirror the OG to limit torque twist, I'm not sure how much in the grand scheme this comparison is fair. Throw in the hypoid high pinion axles and it's a no contest situation, isn't it?

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I think you are.....confused. I'm not comparing the original SCX10 to the SCX10 II. The only thing I am comparing is the original SCX/AX10 transmission and the new SCX10 II transmission IN THE SCX10 II.

The SCX10 II kit comes with an optional skid plate to install the original SCX transmission and the RTR version comes with the original SCX transmission.

 

[Jeepy84]

Ah, I indeed misunderstood, i thought this was merely a weight bias comparison of the cases, since there is no chassis involved in the pictures. Carry on.

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[Waitwhatsthat?]

I'd like to see an actual running performance comparison. Both with the transmissions in stock orientation, and then flipped. Just to see if one really has the advantage of the other, or if flipping the trans really is a worthwhile improvement. There's lots of hate around here on the new style transmission, but I have yet to see a good amount of facts or maybe a list of pro's and con's to back these statements up.

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[Col_Sanders]

Just from holding both setups in and out of the truck, the weight bias is definitely more forward with the old style trans. As far as how it effected the center of gravity, I'm not sure. I had planned on doing some sort of incline board before and after (using the same motor/esc) but my wife took off to go do some errands and left me with a one month old and a fourteen month old so that plan went out the window. I am too lazy to put it all back just to do some random testing.

The new trans looks great. It looks like Axial definitely put some effort into making it a nice looking functional design. Then they put it in backwards.

 

[jwall046]

What is the weight forward difference from old to new flipped around 180 deg?

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[AngelowDoom]

I also installed the AX10 transmission in my Deuce, and I installed the flipped Deuce transmission in a SCX10. Both trucks benefited from it. Did not want to flipp the Deuce in the Deuce, cuz I wanted to have the battery tray and such stock a little while longer. I may put it back flipped if there comes a setup for it in the market that I like more than what's available now. Or if I get around to fab something myself.

 

[jwall046]

Re: Original SCX Transmission vs SCX10 II Transmission

Yes, I flipped and machined my own.
But was wondering if old was better.

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[Col_Sanders]

What is the weight forward difference from old to new flipped around 180 deg?

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The motor would sit a good bit farther forward with the new style transmission flipped around. The motor is obviously the bulk of the weight, but the transfer case does have a bit of weight to it as well.



I really may end up swapping it into my comp rig (transfer case = points) or simply putting it back in here when a few more options come out for flipping it around.

Next time I'm screwing around on Shapeways I may place an order for the parts that are available. I only run little 2200 packs so losing half of my battery tray doesnt bother me.

 

[Col_Sanders]

Sorry to report that my run today wasnt a good test. I realized after I drove 40 minutes to the meet up spot that I forgot my damn radio. Luckily I was able to borrow an older Futaba TX from a buddy and I was able to run. Unfortunately, my steering was garbage even with the end points turned all the way up and I was having some major stuttering/cogging in reverse. Forward was fine, motor temps were good. I was able to continuously hold my finger on it for a while and not feel much hotter than the ambient temp, but it was cogging like crazy. I got home and rebound my TX and all is good. :???:

I'm running 56/13 for my gearing. Stock in the II trans is 56/15. Judging by my temps I could probably go up one on the pinion.

 

[joselosada]

hi,
just saw the pics you've posted in scx10 II thread "no talking", so i've decided to ask you here.
what body is it, and how functional is it? i mean, does it rub the tires? is the wheelbase 313mm?
congrats for your truck. is beautiful.
thank you.

 

[Col_Sanders]

Thank you! I am guessing you mean the orange one? That is an RC4WD K5 Blazer body. I did a bit of work to it to make it close to my old K5. I filled in some body holes and used a Vaterra grille. I also had to cut a bit off to help keep the Proline Super Swamper TSL XLs from rubbing. The wheelbase of the body is 287mm (11.3 inches for us Imperial users), but I cut the rear fenders a bit so that I can run a longer wheelbase. I believe it is somewhere around 295-300mm (11.75 inches). The front tires rub a little bit when turned and fully compressed.

 

[joselosada]

Thank you! I am guessing you mean the orange one? That is an RC4WD K5 Blazer body. I did a bit of work to it to make it close to my old K5. I filled in some body holes and used a Vaterra grille. I also had to cut a bit off to help keep the Proline Super Swamper TSL XLs from rubbing. The wheelbase of the body is 287mm (11.3 inches for us Imperial users), but I cut the rear fenders a bit so that I can run a longer wheelbase. I believe it is somewhere around 295-300mm (11.75 inches). The front tires rub a little bit when turned and fully compressed.

thank you col for your fast reply. i have the xls too in mine with the original cherokee body, and the front ones also rub a bit the fender when fully compressed and turning. i'm absolutely happy with that body, but, you know, i'm looking anyway for a pick up body. yours is unique with the mods you mentioned "thumbsup""thumbsup". the 313mm (12.3inches) i've found are comanche, nukizer, ram 1500... anyway, i've posted some pics bellow yours in the other post

 

[Col_Sanders]

The K5 isn't actually a pickup, its a convertible SUV. This one is kind of modeled after a full size one I used to own. I will put a back seat and a soft top on in it, I just have to make or find one.

 

[CamoCrouch]

Re: Original SCX Transmission vs SCX10 II Transmission

Installing the old transmission was easy. Aside from removing the stock trans and skid and installing the OG stuff in its place, it just required finding new lengths for the driveshafts (longer front, shorter rear) and putting a nut on the front upper link since there is no mount on this skid.

G'Day,

Sorry for the thread resurrection but your comment above caught my eye, as i'm thinking of switching the kit trans to the OG style to easily fit my honcho body.

Re the differently length driveshafts needed, does the kit come with the parts to do this? I've been comparing the two manuals and it looks like the RTR comes with 2x AX31114 but the kit only has one... I'm guessing I need to purchase another sprue of this part.

Also could you provide a little more detail re the 'nut on the front upper link' comment? I couldn't picture what you meant from the instructions and would like to source any parts needed before I start building.

Appreciate the help, thanks.

Cheers,
Crouch

 

[allanon1965]

you can flip the kit trans around and fit the honcho body quite easily then, thats what I did.. the kit trans has a lower gear ratio than the older original scx10 trans and I can tell the difference in the low end smoothness of the kit trans.

 

[Col_Sanders]

Re: Original SCX Transmission vs SCX10 II Transmission

G'Day,

Sorry for the thread resurrection but your comment above caught my eye, as i'm thinking of switching the kit trans to the OG style to easily fit my honcho body.

Re the differently length driveshafts needed, does the kit come with the parts to do this? I've been comparing the two manuals and it looks like the RTR comes with 2x AX31114 but the kit only has one... I'm guessing I need to purchase another sprue of this part.

Also could you provide a little more detail re the 'nut on the front upper link' comment? I couldn't picture what you meant from the instructions and would like to source any parts needed before I start building.

Appreciate the help, thanks.

Cheers,
Crouch

The driveshaft parts you need come in the kit or you can trim up longer shafts if you have some laying around.

The kit transmission skidplate has the front upper link mount integrated in, but the RTR/AX10 style trans skid plate does not have that. You need to just use a nut on the screw.