[thumper64]

With turbo engines, as long as you keep good lubrication, run safe air fuel ratios and don't exceed the limits of the engine, it should stay as reliable as an NA motor and last about as long.

Where we generally see failure in the Honda game is the rods giving out from pushing more power than they can take. Pistons crack from running too lean or too much advance. Valvetrain suffers from revving too high, where power is really made, and floating valves from not having hard enough springs, or wearing rockers and cams down from too hard of springs and not good enough oil. Lubrication can be an issue from lubrication issues which could be the oil pump failing. Head gaskets fail from the head lifting under more power, so ARP head studs are generally installed from the start. The ignition system can see shorter life because there's more resistance in bridging the spark gap while under boost than being at under atmospheric pressure as you normally are on an NA motor.

If you get down to it, everything on the engine has a certain limit of what it will take. Don't exceed it and you won't have issues.


As far as turbos, there are already a couple very small ones, including one that some people put on racing lawnmowers and Honda Ruckus scooters (50cc). How that would work for these engines, I do not know and you may need to find something bigger. Get in touch with AFI Turbo or Blue Ridge Motorsports if you're really thinking of turboing something. There's stand alone ignition systems, cam triggers, all kinds of stuff used on cars and possibly usable on bikes to do anything crazy you can think of.