Originally posted by 1965GTO:
Why do you keep bringing up motorcycles?
Because the S2000's engine is very similar to a sportbike engine in the way it performs, and it's "ultra quality" manufacturer also builds sportbikes.
But since you brought it up a Kawasaki 1000 clutch will handle 6000 rpm dragstrip launches for years.
No, it won't. It will last for a while, but not for years, furthermore, a Ninja with rider weighs around 700lbs depending on how heavy the rider is. An S2000 weighs 2500lbs at least with driver, if you have a hard time grasping how much hotter the S2000's clutch parts will get due to the huge amount of extra weight, open a physics book. Get a bike, or better yet, your own bike shop, like one of my best friends. They're listed in the Yellow Pages: "Tech One Motorsports."
The older bikes are air-cooled and have roller bearings so i won't compare the engines to automobiles. The newer motorcycles with watercooling and journal bearings will surely last a long time.
Again, learn before you babble. If you are talking about an old Katana, sure, it's air cooled (also oil cooled), but even Honda's Hurricane (predecessor to the CBR) was water cooled back in the 80's. If you put 30,000 miles on an F2 600 (similar in power output per liter to the S2000), it's in dire need of a rebuild. Perhaps it would be more fair to compare a larger bike that turns less rpms. How about the sportbike with the most mileage I've ever seen. A 1990something Kawasaki Ninja ZX-11. Water cooled, just so you know. It had 56k on it, and it was totally clapped out. I mean toast. It needed everything, pistons, rods, crank work, rockers, rings, sleeves, everything... and the owner BABIED it. Maybe you'd like to compare to a big twin? How about Ducati? They redline pretty close to the S2000 and their engines are built to take abuse, but only for about 15k. That's when they need a rebuild. Rings, pistons, valvetrain work (Desmo valvetrain doesn't help here). Still, needs a set of pistons and rings.
Some of the new very high output motorcycle engines probably won't last as long, your car wouldn't last as long if you ran 10 second 1/4 mile times either.
Again, you have no idea what you are talking about. The new engines are exactly that. Everything in the new engines is stronger than the old ones. You're still gonna take out rings and pistons just as quick, but the engines are better built. As far as being a heck of a lot more powerful and running 10's, you appearently have no idea about bikes. Compare the Hurricane to the F2 to the F3. You're talking a difference of 30rwhp. The head is slightly worked, a different exhaust, and some jetting. The extra stress on the engine is minimal. In fact you can pick up a real 10rwhp by putting an F3 exhuast onto an F2 bike. The Dynojet, part of Tech One's assets, shows that. That's about the extent of modification. An F3 is about 10-15hp less than an F4 engine, which is built superior. The F4 should last just as long as an F2 or F3. About 20k, 30k clapped out.
If you are going to make a comparison, please, at least have a little clue about what you are talking about.
And yes, the 2.8L solid lifter V-6 in the 79 Capri my mom drove was run severely low on oil several times. To the point the engine would overheat. It kept on going for thousands more miles.
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