I only use a MM- I havn't tried 5s / 9L in my revo (mainly due to not having batteries that match that config on a G3R chassis) but have 5s / 1515 2.5D in my hyper ST truggy and it runs fine.
I now run 5s2p on the Revo but am a building 6s2p config but will swap i think to a quark 125 and put the MM in my buggy which only runs 4s...
What ESC are you using in your 5s/1515 2.5D Hyper ST?
I've been using a 1515/2.5D on 6S for a while now in my E-Revo on 18/62 with Badlands and it is geared for a solid 35 mph. With temps the way they are right now I think I can go up to 20/62 and get closer to 40mph with no problems at all, but I can't see doing any on-road with the E-revo that much and the 35 is a fun speed for bashing around and no parts breakage with lot's or torque at hand.
“Everyone has a right to be stupid; some people just abuse the privilege.”
I've been using a 1515/2.5D on 6S for a while now in my E-Revo on 18/62 with Badlands and it is geared for a solid 35 mph. With temps the way they are right now I think I can go up to 20/62 and get closer to 40mph with no problems at all, but I can't see doing any on-road with the E-revo that much and the 35 is a fun speed for bashing around and no parts breakage with lot's or torque at hand.
Vintage,
You don't mention what ESC you are running at 6s???