Avonbar Phase 2 Cam
Turbo Mini Forums

Hello, as above and just seeing if anyone has one they won't be using even though this is a slim chance but just checking before hand.

http://photobucket.com/quintonrose

Avonbar £68 reprofiled one

Do they still do reprofiled cams? I thought it was billet only now?

If something is worth doing, it's worth doing half of.

Ok might sound like a stupid question, but what's the difference in it besides weight? nothing?

http://photobucket.com/quintonrose

Re-profiled means they regrind an existing cam to get the new lobe shape and as the new lobe will inevitably need to be "longer" than a standard cam, the only way it can be done is by grinding the whole lobe on a smaller diameter base circle. Also if lift is being increased, the base circle must be made smaller.

So a reground (re-profiled) cam runs a smaller base circle.

One disadvantage of this is it means the track is shorter and the smaller radii mean slightly higher contact loads. Shorter track and increased point load means higher wear rates.

Just how significant the extra wear is has been debated for years.......

Schrödinger's cat - so which one am I ???

Hmm right ok. Suppose I could have it done and run everything new and just have a look in a years time to inspect wear.

http://photobucket.com/quintonrose

Avonbar are deffinately still re-profilling the ph2, i've just had one done.