ORIGINAL: XJet
With nitromethane costing around NZ$25 per liter, I run my Saitos on 10% nitro and they are real smooth and strong. Saitos may perform better on higher nitro but they don't *need* it to perform well.
Yep, me :0)
I've smacked a Saito 100 into the ground from a couple of hundred feet when the battery wire broke. It was burried so deep you could only just see the intake manifold -- everything else was well underground.
I think the total cost to repair was about $10 for a set of pushrod tubes.
If that'd been a 2-stroke, the carb would have been toasted ($40-80) and chances are that the crankcase would have also cracked or broken where the carb attaches (borderline uneconomic to repair at all).
The good thing about 4-strokes is that the carby is behind the motor.
I guess it depends how it crashes, but I'm thinking if that muffler rips the threads out of the head or the valves get hit it could get expensive. And the nitro, they do run on lower nitro but not as good. take care,