R/C Tech Forums - Tamiya TB-Evolution IV

Originally posted by F. Alonso
There has been a thread that's opened up about free drivetrains with people claiming that when the motor isn't attached, that they can blow onto the spur gear and the drivetrain will move, with the wheels attached and everything in some cases.

What is it like for other Evo IV owners out there??? Dave?? Any ideas??

Well the EVO4 is not on the top of my list for free drive trains.. but it has something to do with the 950 bearings:rolleyes: :cry: ... but I would have to say my Barracuda's and Pro4 are pretty free;) but a little more time with the EVO4 and it should be right up there:nod:
-Dave:sneaky:

JDM_DOHC_SiR

08-02-2004 10:36 PM

Quote:

Originally posted by Neil Rabara
Does Tamiya usually put out a TRF version after some time after a car's release?

I don't think so... but I wouldn"t put if far from Tamiya to Put out a "SPECIAL" verson:sneaky:
-Dave:tire:

Neil Rabara

08-02-2004 10:38 PM

The kits are always evolving. There's never a final version.

JDM_DOHC_SiR

08-02-2004 10:43 PM

Quote:

Originally posted by Neil Rabara
The kits are always evolving. There's never a final version.

Yea tell me about it.. I have had the car for about 3 weeks now and I feel a update coming soon:lol: :lol: :ha: :p ;) :nod: :rolleyes: :cry:
-Dave:blush:

ngo8	08-02-2004 10:43 PM

3 months:D :lol: :lol: :weird: :weird:

FW-05RR

08-02-2004 11:11 PM

Quote:

Originally posted by JDM_DOHC_SiR
Well the EVO4 is not on the top of my list for free drive trains.. but it has something to do with the 950 bearings:rolleyes: :cry: ... but I would have to say my Barracuda's and Pro4 are pretty free;) but a little more time with the EVO4 and it should be right up there:nod:
-Dave:sneaky:

now when you say "but a little more time with the EVO4 and it should be right up there" do you mean as time goes by and you use the car more the drivetrain will get looser:confused: OR are you planning on upgrading the bearings:sneaky:

F. Alonso

08-03-2004 05:57 AM

Also, when you blow on the spur gear, does the drivetrain move on your car??

I think I might have chipped the bearings in a hit because I did have a shim like piece of metal on my front right universal shaft. I'm not 100% sure but it could just have been the shield.

WC	08-03-2004 06:22 AM

Quote:

Originally posted by taisantobi
...but be careful! don't hit anything, because after every hit the car has lots of tweak.

would countersinking the top deck cure this?

racer

08-03-2004 10:59 AM

i was thinking of placing a "T" brace in the centre found on the SD. Tech Racing has produced this similar chassis for the Evo III and its pretty stiff.

hopefully with this it'll lower the chances of chassis tweak

The Black Kat

08-03-2004 11:53 AM

Where can I get some Tech Racing stuff?

racer

08-03-2004 02:25 PM

Quote:

Originally posted by The Black Kat
Where can I get some Tech Racing stuff?

you can get the chassis overseas at R10 or RCchamps. just a word of warning. the chassis is only made for a shorter wheelbase. you can not adjust the wheebase at all.

oh yeah, if are looking into getting it. you will need to get from them shorter front/rear hinge pins for your A-arms.

Tech Racing link

JDM_DOHC_SiR

08-03-2004 02:35 PM

Quote:

Originally posted by FW05R
now when you say "but a little more time with the EVO4 and it should be right up there" do you mean as time goes by and you use the car more the drivetrain will get looser:confused: OR are you planning on upgrading the bearings:sneaky:

The Bearings were changed out even before I bought the EVO4 :lol: :sweat: Squat GOLD!!!:sneaky: :nod: very free spinning:D..but the weak link is still the 950 bearings:cry:..still have not found a maker that makes good bearings in this size yet:rolleyes:
-Dave:tire:

JDM_DOHC_SiR

08-03-2004 02:37 PM

Quote:

Originally posted by F. Alonso
Also, when you blow on the spur gear, does the drivetrain move on your car??

I think I might have chipped the bearings in a hit because I did have a shim like piece of metal on my front right universal shaft. I'm not 100% sure but it could just have been the shield.

I would inspect the bearings in the hubs:nod: they are "VERY" prone to failure due to the small size:rolleyes:

ngo8	08-03-2004 03:17 PM

did you see if dynamyte make 950 bearing they are pretty strong.

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