You would think so wouldnt you !
i really dont think it is as simple as that. but honestly im not technical enough to get involved...

It can be done if Castle really wanted to. The European companies been doing it for a long time.

Yes, extremely so. :) Be curious to see how long it lasts since its rated for 60k, and thats slightly over... not to mention the 125amp rating; but we all know that CC has been underrating stuff to help avoid issues by "normal" users!

I'm curious because I eventually intend to run 8S on an Mamba XL and the 1520 with my 5T conversion, instead of just 6S.

Well i think 9s should be absolutely fine... and it is only JUST over the rated rpm... considering my mate and many many others run the 2650kv castle motor on 6s which is over the rated rpm limit by 5000-6000rpm
So i think i will actually be absolutely fine!
I heard people running the 1520 on 10s even!!!
And remember thats only over rated at 4.2V not 3.7! so i will rarely be over the limit anyway!

Well, I shouldn't have any issues with the amp rating or motor rpm.

Data log with my Mamba XL in the hyper 7 using 8S lipo and a 1800kv 1518 was a max amp draw of 111a and 55,400rpm.

So a 1100kv 1515 in a SC truck on 8S shouldn't get anywhere near those numbers.

Was this project scrapped?? Just wondering