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

[fidspeed]

I m planning 10.5 with a tad of boost so start with in my xx my worry is not gearbox as I remember running silly winds in the old brushed days but wishbones specifically fronts .I haven't seen any for sale for a while (I have xxx to and suffering same issue)

my boy just launched his fabiix cougar MM up the road yesterday as a trial with a decent 13.5 and a fair helping of boost and it went like a scalded cat !!

if its indoors and for "gentlemanly " races 10.5 should be safe and ample

dave

[dodgydiy]

a 10.5 would probably be ample, play with the timing and gearing to get the speed, and wont have enough torque to cause problems with the diff. my fab2000 with a 13 double on lipo as very close on performance to a 10.5

[KRob]

I use a 8.5's in both my RC10 Stealth and the B2.
Got a Losi JRX with the retro-fit XX box on it with a 10.5 and I've given it some with that - handles it no problem. I don't think you'd have any problem with an 8.5 in a XX. That's with Lipo too.
I have run brushed but whilst it feels great and it's good to be period, with the lack of decent cells forcing me to run Lipo instead of Nimh it does take more out of the motor.
I will run brushed in my more 'show' stuff that I will drive for fun but when 'racing' vintage it'll definitely be brushless.
Heard stories that a Hydradrive wouldn't be up to modern power though so wouldn't have one of those on (just in case you have one).

[daz75]

Got quite a lot of spares so wishbones should be OK got rpm ones on the front which is a bit more problematic as they would be about £50 to replace lol

How do I tell is its using a hydra drive?

[colin b]

Great to see you again Daz (only been about 20 years !!) the track star stuff is pretty good budget stuff but you will need a brushless compatible speedo (((that old mtronics thing won't run brushless))) hobbyking is the best place for budget stuff !!! Or the for sale section on here!!