What pulley is this?

Just got my SC kit home for my Vectra. Can anyone tell me of this picture what pulley is mounted.


Senior Member
I've always wondered why it couldn't be done without NET ECU.

Never say never as they say, fingers crossed it goes to plan.
Yes i will try at first with the Vectra C ECU if i can find someone who can program this.

But as a backup have got my self a loom/ecu from a realy early Vec C Z20NET.
Then i'm home free so to speak. Since this is no problem to program this ECU with a good program that works with the SC instead of a turbo.


Stupid Bollocks
the zzp one is hub based so all you have to do is unbolt that one and fit what ever size you want/need 3.1 is what i fitted and then had to have a massive rpm cap
the standard one is 3.3" and push on