Quote Originally Posted by disappointed View Post
(QUOTE) BTW mishifting is possible , but hardly from 5th to 1st. And it can destroy an engine , pulling the engine to match road speed and RPM to something byound the preset redline. Bang. Is this the case for failed engine ? the thread starter wont say.
Mis-shifting is ofcourse possible, as you say not at 100km/h from 5th to 1st. But I don't agree that you can go beyond the rev limiter without fiddling with the computer.[/QUOTE]

Mate, what he meant was it is unlikely for people to accidently mis-shift from 5 to 1, they are so far apart, but physically it can be done. Only stupid people with IQ lower than 50 would do it, because it will blow up your engine.

Let me put it into simple english.

You are half correct, the compupter only stops you from reving beyond say 6000rpm, so if you are on 3rd gear, it is not possible to rev beyond that without shifting. However, if you are driving at 3000rpm on 5th gear at 120km/h, and physically shift the gear onto 1st, while the car still rolling at 120km/h, what do you think it would happen?

ok, let me answer it, your car will try to roll at 120km/h for a very short period, maybe 1/10th a sec, then you will slow down very fast, the gear resistance is too high, the wheels are generating too much torque back to the engine, in result, the weakest link in your drive tran will fail and you WILL HEAR BANG!

Second theory, drive your car all the way to the top of the hill, and turn off your engine, put your car into 5th gar and try to roll down. According to your engine ignition off theory, the car shouldn't roll right? Because no petrol is burnt. Please think again. Now when you are rolling faster enough, try to shift it back to 1st gear, still with engine off.