Anyone have one of these O.D pump pulleys

Any comments on quality.

http://www.yugobernie.com/hi.html



http://www.yugobernie.com/movies/images/Pulley_Comparison/

Cheers
Dave

 

Those pictured, very closely resemble the AMS item that I recently scrapped(due to incessant belt squeal). Not worth the effort(or the questionable improvement)IMHO.:bash:

 

Actually states clearly with pics that the offset for alignment on AMS and PEX are both over 22mm and these are 20 mm like stock .

Not sure on quality but seen them on TTnet for sale and they are pretty @nal about these things


Edit .also you don't need these with a under drive pulley as debated numerous times .

I run an under drive pulley with greddy oversize accessory pulleys meaning it's slowing everything down even more ... Everything works 100% normal in traffic summer etc .

 

Has anyone actually quantified the gains of an underdrive pulley on a dyno? I'm interested to know.

 

Thanks all. I have just ordered one so will see if any cooling gains. This will be interesting.
Cheers
Dave