I would think 4 shoes would help the clutch grab better... but also, you can add weight to the shoes. That's one of the tuning options for nitros, either drilling out some material to lighten them or adding something to make them heavier. I've never done it myself so I could only guess how it's supossed to be done. A nitro guy could tell you...
Does the car nosedive if you hold the throttle steady over the jump? If you are hitting a jump full throttle then try to only back off to like half throttle in the air... never let off all the way... and you should be fine. It should fly pretty level without extreme throttle inputs.
As for the brakes, you might want to check out the "building losi eight" thread at rctech.com forums... there is a lot of talk about the brake servos dying in the 8ight. You also mentioned using a smaller servo fo rthe brakes..... don't do that. You want a good strong servo there.
I would think 4 shoes would help the clutch grab better... but also, you can add weight to the shoes. That's one of the tuning options for nitros, either drilling out some material to lighten them or adding something to make them heavier. I've never done it myself so I could only guess how it's supossed to be done. A nitro guy could tell you...
You're right. You can add or remove weight from the shoes to change how they grab. There is actually a company making some that have like 3 or 4 set screws in them that you can remove to change that. He might want to look into that.
I am also looking into a one-way solution for my motor.
All of the one-ways I've seen use 6mm shafts.
Does anyone know of a one-way that uses a 5mm shaft?