Tamiya MB-01 Chassis

[Tamiyastef]

1 hour ago, Badcrumble said:

Is it me or is that rear track a bit wide? Or is it that the body is a bit higher?

Both I think 🤔 

[Raman36]

3 hours ago, Sogogi said:

New mb01 body revealed…

i like it

I’ve been waiting to see what livery they came up with.

1. They added an auto delta triangle in front of the four leaf clover
2. added number 53
3. Italian flag on rocker? Or is that paint?
4. X on head light.

No serpent and cross? overall, very lazy decal sheet! The number should have been 33, which is Alfas lucky number, not 53

[Kowalski86]

4 hours ago, Sogogi said:

New mb01 body revealed…

i like it

I like the livery, but the rear wheels seem to stick out a bit more than the M06 variant. Looks like it might rub on tight turns.

[Busdriver]

18 hours ago, Sogogi said:

New mb01 body revealed…

i like it

This started me thinking ( though the image seems to have disappeared) as yes the rear end looks awful and then I thought about the Abarth front wheels rubbing. I got my M06 Alfa and my MB01 Abarth and did a vet unscientific test with a pencil and a ruler. 
hopefully you can see from the image that the MB01 has a front and rear track width of 16.5mm whilst the Alfa has a track width of 16mm front and 16.3mm rear. This would cause all of the above problems, ie the wheels sticking out to far at the rear and rubbing the arches at the front. My M05 chassis has almost identical track width to the M06 so again would account for the issues with the Abarth body when used on an 05 as opposed to the MB01? Both the chassis’s are set up stock with regard to toe etc.

[Badcrumble]

Nice work @Busdriver. 

I guess the next question is, what can we do, if anything, to reduce the track width?

Thinner hexes?

Wheels with less offset?

[Raman36]

3 hours ago, Badcrumble said:

Nice work @Busdriver. 

I guess the next question is, what can we do, if anything, to reduce the track width?

Thinner hexes?

Wheels with less offset?

Thinner hexes is good option. The kit plastic is a 5mm, so 4mm hex will resolve it

[Kowalski86]

I hate to say it, but iirc Traxxas makes a somewhat thin hex, it's also made out of nylon which generally won't "shatter" like Tamiyas.

Of course, I'd go for aluminum if anyone makes a 4mm aluminum hex.

[cstorckiii]

2 hours ago, Raman36 said:

Thinner hexes is good option. The kit plastic is a 5mm, so 4mm hex will resolve it

My MB01 kit hexes actually measured 6mm. 

[JimBear]

13 hours ago, Busdriver said:

My M05 chassis has almost identical track width to the M06 so again would account for the issues with the Abarth body when used on an 05 as opposed to the MB01? Both the chassis’s are set up stock with regard to toe etc.

Getting slightly confused here ... do you mean MB-01 is better than the M05 in this regard?

Something else that came to me - was it always 54/60 tyres (as it is with the MB-01) when using the Abarth body? Otherwise, then 54 tyres up front may have been a way to try to get rid of the rubbing?

It also strikes me that getting a wider track width means you can't get the tyres in under the wheelarches on the Alfa, which to me looks odd, given how they tend to look like in real life.

[wolfdogstinkus]

53 is Herbie's number, I can't look at it without seeing Herbie, it's twisting my melon, man.

[Re-Bugged]

For sure those back wheels stick out to far, they are tight and even rub a bit on my M06.

Just checking your measurements there though @Busdriver mate, by 16.5mm I’m thinking that’s 165mm width for the MB01 while the M06 is 160mm, making the MB 5mm wider at the back so you would have to lose at least 2.5mm each side?

Maybe another solution would be to fit adjustable upper arms as @Willy iine did on his smart M06 Beetle to tuck the wheels under a bit. Not sure if it’s possible on an MB though.

Best by up the remaining M06’s before they are gone forever 👍🏻

[Re-Bugged]

Of course you could always trim the arches a bit like this one 😉….

https://www.tamiyaclub.com/showroom_model.asp?cid=87657&id=24527

[Sogogi]

35 minutes ago, Re-Bugged said:

Best by up the remaining M06’s before they are gone forever

I feel like this thread makes me want to buy m06 more…

And just by looking at parts (more like hopups)availability from tamiya, i doubt m06 (or m05) support wont last long.

[wolfdogstinkus]

2 hours ago, Re-Bugged said:

Just checking your measurements there though @Busdriver mate, by 16.5mm I’m thinking that’s 165mm width for the MB01 while the M06 is 160mm,

I'm glad you said that, to start with, I thought 16.5mm was the tyre contact patch, but I didn't want to display my stupidity, now that's cleared up. (Measurements corrected, stupidity displayed)

What's the contact patch size?, just curious like.

With greater wheelbase, comes greater stability. I think Spiderman says something similar so it must be true.

 

[wolfdogstinkus]

2 hours ago, Sogogi said:

I feel like this thread makes me want to buy m06 more…

 

Subliminal message incoming "buy it" sublimation message end.

[Tamiyastef]

26 minutes ago, wolfdogstinkus said:

Spiderman

 

26 minutes ago, wolfdogstinkus said:

so it must be true

🤣🤣🤣

[chris.alex]

"Great Hobbies" show a video on Facebook about the MB01 with Alfa Giulia. In my eyes the rear track width doesn't seem to be an issue: 

https://m.facebook.com/story.php?story_fbid=pfbid02zbyKPZzKZo4Zu8wUKMTvk6meFNRcQ7zUZ9n1XN1x5fvbyhkX2U9L4iQmrEuG2uv6l&id=100044457354332

Apart from the inappropriate "53" the body looks beautiful. 🙂

 

[Busdriver]

@Re-BuggedOoops yes. That was cm’s not mm’s my mistake!!! @JimBear no quite the opposite. Because the MB01 has a wider track than the M05 it’s more likely to rub. I think when the body was used before they used 55mm tyres on the front and 60mm on the rears so no change there. I’ve just bought a set one price lightweight one piece aluminium axles as they give some variation to track width. Only arrive yesterday and haven’t had a chance to try them out on the MB01.

[Busdriver]

A picture paints a 1000 words!!! The rears stick out quite a bit with the MB01. Thin hexes might just do it but I still think it will tight if you want it to look like the M06?

[Willy iine]

Yeah, I noticed that on Tamiya's latest photo on Instagram as well.. the track on this car is too wide.  I suppose if one runs 4mm hex hubs and trim off some of the wheel where it might contact the hubs, it could work.

I now have a handful of aluminum clamp-type  3mm, 4mm, and 5mm hex hubs in my parts bin     Not that I plan to use them on my MB01 as I am happy how my MX5 turned out with the Swift wheels/tires.  Having various hex hubs gives me so much more options for proper fitment.  

[Willy iine]

9 hours ago, Re-Bugged said:

 

Maybe another solution would be to fit adjustable upper arms as @Willy iine did on his smart M06 Beetle to tuck the wheels under a bit. Not sure if it’s possible on an MB though.

Best by up the remaining M06’s before they are gone forever 👍🏻

I think unless Tamiya makes hopups for the upper arms (or someone 3D designs one) with camber adjustment it might be difficult to do on this car.  M06 was easy to do as it only uses the upper rods... a dumb dumb like me could even do it.  

I do agree grab those M06's before the are gone.. otherwise M08R's..  everyone but me has one.    

[Badcrumble]

4 minutes ago, Willy iine said:

I think unless Tamiya makes hopups for the upper arms (or someone 3D designs one) with camber adjustment it might be difficult to do on this car.  M06 was easy to do as it only uses the upper rods... a dumb dumb like me could even do it.  

I do agree grab those M06's before the are gone.. otherwise M08R's..  everyone but me has one.    

I almost wish I hadn't bought the MB-01 given the Abarth issues - I have a new shell in the loft from the previous version so didn't really need it. Though I think I  have some 3mm hexes (from an paused Mini project) wedged in a set of Tamiya Minilites I could try. No rush. I haven't built the chassis yet.

OTOH it might be fun to try in a different configuration with a different body - maybe a Mini Monster as they have MASSIVE arches.

The M-06 never appealed to me for some reason. Possibly because I have more M-04s than I could possibly ever use. And I bought an M-08R 

[Kowalski86]

9 hours ago, Sogogi said:

I feel like this thread makes me want to buy m06 more…

And just by looking at parts (more like hopups)availability from tamiya, i doubt m06 (or m05) support wont last long.

M06s really don't need much to be decent runners, just "the big 3", and a fan in the back over the motor.

[Kowalski86]

Thanks to @Raman36, I was able to pick up a nice MB-01 roller. I won't be able to drive it until after the weekend, but here are some pictures that will hopefully be useful.

It does weight about a pound, and the wheels don't have quite as sharp an angle as my M05. But there are some nice QoL touches like hinged battery holders.

And for anyone wanting to make it into a drifter, it fits HPIs Datsun 510 shell pretty well.

[Kowalski86]

This is it set to MWB with my beater Giulia shell on it, the rear wheels rub just a tad at full compression, but unless if you're rallying that shouldn't be a problem.

Edit: After taking these shots I was able to lower the body another notch, still no serious tire rubbing issues at the back.