Cold Engine Wear

[robert78]

Hi All

Not sure if anyone can answer this slightly odd question, but here goes....

You start an engine from total cold, within 5 seconds you race off, driving up to red line in each gear....not good I know!

Now, how many miles wear will this be equal to, in relation to normal driving (i.e driving normally though the gears moderately when warm)

I read somewhere for every mile of "cold trashing" you do, is equal to up to 200 miles of normal driving....i.e. 200 times more wear...

Thanks
Rob

[Mr Dave]

My mate does this on his racing bike near enough, at the most itd get maybe a minute of idle and a few blips of the throttle before being thrashed mercilessly, since it was well built in the first place when we take it apart there doesnt appear to be any wear from this season as far as we can measure it and never appears to be any metal particles in the oil after the first few times it was run.

although saying that it was built to very close tolerances and always has clean oil and filters and all and they dont race when it is very very cold.