A small update, restrictors.
My understanding of a restrictor is something needed to hold the power at a certain bhp. The restrictor has an internal hole at a certain diameter to achieve the bhp level, the bigger the hole the more power. The other way from what I've been told is to change the pulley size, in this case to create more power it's down to the restrictor internal hole diameter.
I've been Pming
Craig as he's running a supercharger as well so he's given me a diameter of hole to work with. What I've done is have 4 restrictors made all with different diameter holes, this will give me scope to get the right power of hopefully 250bhp. I've spoken to Paul at RS Tuning in Leeds and he says 250bhp is achievable on a stock engine so I'm happy with that. So I'll fit the smallest diameter hole restrictor first to see how it goes, then swap them if needed to up the power.
Again when speaking to Paul he said to fit the restrictor after the supercharger and before the intercooler. The restrictor has been made so the small diameter fits inside the intercooler outlet, the bigger diameter is the same size as the silicon hose internal diameter so the silicon hose slides over the restrictor then onto the intercooler outlet. I had a friend draw the design then have an engineering company machine them up.
I have photos and uploaded them to FlickR but they've now changed the way you copy and paste the links to get them on here
and me not being computer know how don't know how to get them on here..