Hippie's GTP Project

[BrianG]

People say the 60mm will be fine, but I personally would go with the 70mm version when it comes out. The GTP is a fairly heavy vehicle (at least mine is) and geared tall enough to hit higher speeds with one gear will put a decent load on it.

Again, for something that will be going fast, I would probably mate a 2000 kv motor with 5s. For 4s, I would run a kv of ~2500. I like higher rpms when geared tall, because the ESC may have trouble getting rotor position on take-off, which may cause cogging. A faster motor geared right should take off smoothly and have decent top end. The Medusas are rated upwards of 60k rpm, so 40k+ should still be well into the efficiency range.

[rchippie]

Originally Posted by BrianG

People say the 60mm will be fine, but I personally would go with the 70mm version when it comes out. The GTP is a fairly heavy vehicle (at least mine is) and geared tall enough to hit higher speeds with one gear will put a decent load on it.

Again, for something that will be going fast, I would probably mate a 2000 kv motor with 5s. For 4s, I would run a kv of ~2500. I like higher rpms when geared tall, because the ESC may have trouble getting rotor position on take-off, which may cause cogging. A faster motor geared right should take off smoothly and have decent top end. The Medusas are rated upwards of 60k rpm, so 40k+ should still be well into the efficiency range.

I only have a 4s pack & would rather not buy a new pack . My buggy uses a 2550 kv motor on 4s & runs great . Do you know when the 70mm medusa's are going to be avalible ?. Also i noticed your gtp2 has a chassis brace connected to the diff's not the chassis . The gtp car has a rear chassis brace connected to the chassis that looks a little different than normal bracs. Will this cause a problem wtih mounting a motor ?.