Vintage losi xx brushless setup tips

[daz75]

Took my lads to race at chadderton yesterday and rather than sit around I decided to race my XX

Unfortunately on first practice my first set of old nimh cells lasted 3 laps

So after chatting with a couple of lads there they said I should be OK to use my lads lipos with my brushed setup

So gave it a try and it worked well for 2 races, in fact I was about half way up the field on my second run, not bad for a car that's still got 20 year old shock oil in it

Unfortunately the 3rd race brought and end to the motor I suspect the extra power of the lipo and the fact the motor hasn't been touched for 20 years killed it, after missing the final round I fitted another old motor I had with me to finish 2nd in my final, my car was getting some funny looks by people lol

Anyway after all that I'm wondering what a safe brushless setup would be so it doesn't destroy my gearbox
I already have a 8.5t trackstar motor would that be OK? Would I have to look at using a different pinion or just use the same one I was running at the weekend?

Cheers

Daz