I always toyed with just porting the manifold and making a short phenolic spacer between the blower and the manifold using the gasket as a template, the blower gets hot and transmits that heat right into the manifold and the air density (mass) suffers. Any increase in the air mass below the blower increases power. Yeah I would want to try a stiffer spring, but really if you're only getting 5K...5K at that kind of pulley ratio you're really building a lot of heat do the efficiency of the blower is going way way down. 5K at the crank is like 14K in the blower and I think it's only rated for ~ 10K continuous and 12K for short bursts.

I figured If the spacer helped power, fabbing some kind of water/methanol cooled intercooler (with a small electric pump recirculating through a chilled reservior in a closed loop) would really help, then you might actually slow the pulley down and still make more power.


I've learned a lot from watching Gale Banks videos on Youtube, he speaks mostly about diesels but it's all applicable to N/A as well.

I miss that little blower I was fun and OMG did it make instant torque through the middle!! To me It felt like a strong street 440 with a full time 100 Nitrous shot any time you hit it.