BMW S1000RR Titanium Valves at 14,200 RPM

[embee]

Originally Posted by yorkie_chris

Huge diesels, stationary engines, industrial stuff. Maybe big gennys, compressors etc.

Wot he said

Car engines rated at say 6000rpm tend to spend most of their lives at less than 4000 in reality, and it's nice to see some valve rotation before 3000. Cars doing the shopping/school run are the problem ones.

Originally Posted by embee

Wot he said

Car engines rated at say 6000rpm tend to spend most of their lives at less than 4000 in reality, and it's nice to see some valve rotation before 3000. Cars doing the shopping/school run are the problem ones.

Thanks YC



aaaahhh i amuse myself in the most silly ways.

I notice my girlfreinds golf 1.6 (SR...ooo yeeaaaa...auto. Ah.) dosn't spend much time above 3000 rpm. I feel better when she takes it along the higher speed roads, but most of the time its just idling or humming along below 2000 rpm.

Is there anything we could be doing to promote good valve health in her car?

Originally Posted by Alpinestarhero

Thanks YC



aaaahhh i amuse myself in the most silly ways.

I notice my girlfreinds golf 1.6 (SR...ooo yeeaaaa...auto. Ah.) dosn't spend much time above 3000 rpm. I feel better when she takes it along the higher speed roads, but most of the time its just idling or humming along below 2000 rpm.

Is there anything we could be doing to promote good valve health in her car?

Give it a good thrash once every so often when its nice and warm

[yorkie_chris]

Originally Posted by Alpinestarhero

Is there anything we could be doing to promote good valve health in her car?

http://forums.sv650.org/album.php?albumid=563

Like i said, she;s in traffic alot im not certain her insurance will take the excuse of "i was trying to clean my valves" too seriously when explaining the claim against her!

Although, I will instruct her to give it a bit more throttle from time to time. Hard in an auto though to keep the revs up without building excessive speed

[yorkie_chris]

Just **** it off the lights a couple of times a week, it's revs the valves need not big throttle openings per se.

Lets face it you can rag the nuts off cars and not really do owt illegal they're that slow.

Originally Posted by yorkie_chris

Just **** it off the lights a couple of times a week, it's revs the valves need not big throttle openings per se.

Lets face it you can rag the nuts off cars and not really do owt illegal they're that slow.

That much is true, on my driving lessons I'm quite suprised at the amount of throttle required to get anything near respectable acceleration (comparing against a motorcycle). My driving instructor was also telling me to keep changing up a gear, which felt wrong for me...the car wasnt above 2000 rpm alot and I'm used to keeping an engine round 40-50% revs. Car engines are pretty good low down

That is amazing. Hard to believe anything can still work at those speeds!

[yorkie_chris]

Drive something with a turbo, turbo rotor could be doing 120,000rpm.

Originally Posted by yorkie_chris

Drive something with a turbo, turbo rotor could be doing 120,000rpm.

how do they not just eat the bearing surfaces? what lubricates? I can only imagine oil is not good enough