K-Series VVC

[Tom]

My Girlfriend's sister bought a hairdryer, sorry, an MGF VVC, a few months back and her new boyfriend drove it at the weekend and said it didn't feel or sound like the VVC was working. She doesn't know what VVC is....

 

I have an Integra with the Honda Vtec system and the second cam makes a huge difference - you couldn't possibly miss it. Should the VVC feel similar?

 

And, if it's not working, is there a cheap fix?

 

Help please

[Mike Bees]

The K-series VVC has *continuous* variable valve timing, not just a switch from one cam to another at a particular rpm. So it's effect is smooth & subtle. I've not driven a VTec, but from what I've heard it's more of a 'switch' effect - good for impressing the occasional passenger but not really how an engine should be.

 

Mike

[tom7]

Her new boyfreind clearly doesn't know his @rse from his elbow.

VVC is a *continously* variable valve control *NOT* a second cam like the Honda system.

If it wasn't working, the engine would work at all.

[WILL FLY]

Just found a link explaining how the VVC mechanism on a Rover K series works for all those of you with VVCs that don't understand how the magic works.

 

here

 

Roy.

 

 

See willfly.net for more info.

If you don't spin you ain't trying

Happiness is knowing you have just a tad too much power

 

[Bob Corb]

If the VVC mechanism ever detects an error the rev limiter will cut in at 3600rpm and the MIL light would come on.

 

BC

[Tom]

Cheers people. That just about clears it up.

 

By the way, just for the record, I was aware that the Vtec system of a second cam differs in concept from the variable valve technology, I just wasn't aware that the VVC operates over the entire rev range - if I've understood it right!

[Nifty]

And there was me thinking you were posting up about the possibility of purchasing another 7 😬

 

How's tricks 🤔

 

Keep off the straight and narrow 😬

[Tony Martyr]

He failed the test - change the boyfriend