Cold start and rev

[bp1000]

Does this make you wince?

http://youtu.be/ATZ9hGYpL48

I always thought revving that aggressively when cold could cause engine wear, have modern oils moved on or is this just careless.

They might have more money than sense but I've seen it in plenty of London car vids ranging from affordable motors to high end highly tuned stuff.

Those Ferraris rev to around 8.5k / 9k rpm so i was thinking 4k maybe 5k max from cold but perhaps this is still too much. Does it really cause wear?

[davepoth]

That doesn't look too much like a cold start to me - I would expect a bit of vapour from the exhaust. But from a cold start the oil isn't yet in the right place, or at the correct viscosity for full protection, so it does cause a bit of wear, nothing major if only done very rarely though.

[Captain Muppet]

davepoth said:

That doesn't look too much like a cold start to me - I would expect a bit of vapour from the exhaust. But from a cold start the oil isn't yet in the right place, or at the correct viscosity for full protection, so it does cause a bit of wear, nothing major if only done very rarely though.

I'd be worried about cold piston clearances too.

[motco]

Most importantly do not start with an open throttle so the engine immediately hits the limiter before any oil pressure has developed, and in a cold start, before it is even in place in any quantity.

[thiscocks]

Captain Muppet said:

I'd be worried about cold piston clearances too.

Im sure the manufacturer would have this covered..