17LikesTA-08 Pro or TA-07RR?
02-27-2022, 11:56 PM
#16
^Actually I'd be the devil's advocate and suggest the MS/MSX/whatever carbon fibre version they have. Including a possible PSM conversion. Which looks very nice and is very cheap for what it is.
The exoskeleton design is a bit of a nightmare from a manufacturing point of view at the very least I think. It's a highly complex 3 dimensional shape that is injection moulded, which creates all kinds of consistency issues with material thickness and dimensional accuracy. The exoskeleton concept I reckon is one that works best in metal, like 1:1 cars. Tamiya plastic chassis are also notoriously prone to tweak and heatsoak. Also I suspect wrenching is a nightmare. A relatively flat plate design like the TA08 eliminates a lot of those issues right off the bat.
The exoskeleton design is a bit of a nightmare from a manufacturing point of view at the very least I think. It's a highly complex 3 dimensional shape that is injection moulded, which creates all kinds of consistency issues with material thickness and dimensional accuracy. The exoskeleton concept I reckon is one that works best in metal, like 1:1 cars. Tamiya plastic chassis are also notoriously prone to tweak and heatsoak. Also I suspect wrenching is a nightmare. A relatively flat plate design like the TA08 eliminates a lot of those issues right off the bat.
I hadn't thought about consistency issues with the manufacturing of the complex TA-07 chassis. That's a good point. I tend to assume things like that get ironed-out before products make it to production, but I suppose that's not always the case.
03-02-2022, 03:47 PM
#18
Tech Master
The car is lighter than many carbon cars. 1040g with a 290g lipo. So adding a shell and wheels puts you around 1200g much lighter than the TA07.
Lots of detail in the link above.
06-01-2022, 01:36 PM
#20
Tech Adept
06-01-2022, 08:37 PM
#21
Tech Initiate
06-02-2022, 04:02 AM
#22
06-02-2022, 07:12 PM
#23
Tech Adept
TA 07 is a pain in the ass to work on with that exoskeleton. Quite honestly, its the damn ugliest thing I've ever seen. My TA08 is super easy to wrench on and very simple to set up. Add the sway bar kit and aluminum servo mount to the out of the box kit and your good to go. You can add the aluminum suspension blocks down the road. The 08 does have more flex, so if you're running 13.5. you'll need a fibrelyte top carbon deck.
Installing a full size battery pack in the TA07 was easy, but what about taping in a shorty pack?
Installing and removing the battery plugs on the TA07 a routine?
When building - routing the motor, battery, and fan wires - they were all supposed to fit inside the TA07 exoskeleton, right?
A big advantage of the TA07's is the ability to move the motor position fore and aft with just two screws. Yet most cars were locked in one position because even with a small electronics and long wires, moving the motor meant moving and reinstalling the receiver, esc, fan, wires, etc.
What other things made TA07 fun to work on?
06-02-2022, 07:29 PM
#24
Tech Adept
Familiarized myself a bit more on the TA-08. TA-08 Pro DOES come with a carbon reinforced lower deck. TA-07 RR comes with the composite plastic lower deck Item# 9335766 or Tamiya Part# 58636. The TA-07 Reinforced chassis is Part# 54745. However the RR does come with reinforced bulkheads and carbon fiber center braces.
If weight is an issue, the TA-08 should be lighter than a TA-07 plastic chassis due to design.
Here is are detailed specs from Tamiya to help someone compare specs...
TA-07 Pro - https://www.tamiya.com/english/products/58636/index.htm
TA-07 RR - https://www.tamiya.com/english/products/47445/index.htm
TA-08 Pro -https://www.tamiya.com/english/products/58693/index.htm
If weight is an issue, the TA-08 should be lighter than a TA-07 plastic chassis due to design.
Here is are detailed specs from Tamiya to help someone compare specs...
TA-07 Pro - https://www.tamiya.com/english/products/58636/index.htm
TA-07 RR - https://www.tamiya.com/english/products/47445/index.htm
TA-08 Pro -https://www.tamiya.com/english/products/58693/index.htm
The TA08 lower deck 9335853 is a consideration as other threads show lower deck breakage and rear toe-in mounts damage. That would be no big deal but the lower deck has been OOS for months and auction site prices reflect this. TA07 parts are readily available.
06-03-2022, 05:20 AM
#25
Tech Initiate
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