Street Jam has just announced another version of the OTA-R31 chassis, called the OTA-R31D. This new D version features several upgraded option parts to the OTA-R31 chassis. The new OTA-R31D now includes a number of aluminium parts such as, Works dampers, suspension mounts (toe-blocks), wheel hubs, suspension mount balls. Also included with the kit will be stronger pulley stoppers in place of the old plastic pieces. The D kit will also include a set of pulleys to adjust drive ratio, which means countersteer (CS) out of the box. This kit is very promising, it addresses all of the previous issues in the original OTA-R31. Coming soon in March of 2012.
SJKT017 – OTA-R31D
Upgrades
- Works Damper
- Aluminium Wheel Hub
- Aluminium Suspension Mount
- Aluminium Suspension Mount Ball
- Pulley set for drive-ratio change
- Strengthening pulley stopper
Original Specifications
- 3-belt drive-train
- 50° steering angle
- Complete turnbuckles
- Complete universal drive shafts
- Front and rear ball diff
- Front under spoiler and rear difuser
- Full ball bearings
Approximate MSRP: ¥30000.00JPY
This new package by Street Jam looks to be in direct competition with the recently released MST MS-01D Pro chassis. The original OTA-R31 chassis was a very well designed chassis. One of the first to introduce the in-line longitudinal battery position, which is now evident in Yokomo’s new DIB chassis.
Source: Street Jam Japan
Balldiff still needs alloy outdrives for longetivity; alloy spurgear mount would run much truer too.
Thanks for the insight PandaGFX. Always good to hear first hand from an experienced builder 🙂
Comes a little too late..
Why is it too late? better late than never 😉
This doesn’t mention the ackerman fix they did on the R31X. I wonder if you still have to do the TA05 Diff mod on the steering knuckles.
Not familiar with that mod, care to enlighten me? 🙂
Here’s the link. http://rcdorishop.blogspot.com/2011/03/article-banggotans-streetjam-ota-r31.html
I found this by googling banggotan and then later found another build from him about the R3X found here. http://csjunkies.com/viewtopic.php?f=7&t=1248 The very last post mentions that the steering cranks were moved back a bit to fix the ackerman.
Cool, thanks for the link. I do somewhat remember this mod, but since I do not own an R31, it has since been forgotten 😛
Comes a little too late..
Why is it too late? better late than never 😉
This doesn’t mention the ackerman fix they did on the R31X. I wonder if you still have to do the TA05 Diff mod on the steering knuckles.
Not familiar with that mod, care to enlighten me? 🙂
Here’s the link. http://rcdorishop.blogspot.com/2011/03/article-banggotans-streetjam-ota-r31.html
I found this by googling banggotan and then later found another build from him about the R3X found here. http://csjunkies.com/viewtopic.php?f=7&t=1248  The very last post mentions that the steering cranks were moved back a bit to fix the ackerman.
Cool, thanks for the link. I do somewhat remember this mod, but since I do not own an R31, it has since been forgotten 😛
Balldiff still needs alloy outdrives for longetivity; alloy spurgear mount would run much truer too.
Thanks for the insight PandaGFX. Always good to hear first hand from an experienced builder 🙂