SSEILMNOP was discussing an Eaton/Harrop TVS 1320. it is made to be an upgrade for the 2.2 liter cobalt engine that originally came with the Eaton M62. the TVS 1320 is a smaller displacement supercharger, but is much more efficient than any M90, so it could be overdriven to the point that it flows more air than an M90. If I understand it right, Eaton designed the supercharger, but Harrop manufactures it in Australia. As with any decent power adder, I imagine the TVS 1320 to cost about 2000 dollars. if cost was lower, it would be a very good candidate to top swap on a Camaro L36, really because it is a smaller supercharger, so firewall issues would not be as exacerbating. another benefit of the tvs 1320 is because it is smaller, it would be easier to build an adapter manifold to mount onto an L67 or L36.
