That's basically the same Eaton supercharger used on the Thunderbird SC, which gave the V6 'Bird WAY more power than the 5.0 'Bird.
The Explorer Express kit for the 5.0 Exploder is based on the SC design, and the 6 psi boost changes the truck 5.0 from 215 hp to 285 hp.
I'm sorry man...but the only think that blower has in common with the one used on the Thunderbird SC/Early XR7 is its basic mechanical design.
The Thunderbird SC's/Cougar XR7's used either a 2nd or 3rd Gen (depending on the year and model) Eaton M90 (90 ci of air per revolution). Aside from their smaller displacement, they early Eaton M90's utilized a small oval or square shaped inlet/outlet design as well as a 3-lobe 60-degree rotor profile and an external boost bypass system. An improvement for certain over the old strait cut Roots style blowers you see included in the Weiand/Holly 6-71/8-71 kits powering most small block rods, but still nothing anywhere close to the design of the 5th Generation Magnuson sold in the above auction.
The 5th Generation Magnuson in the auction is an MP122 (122 ci of air per revolution) Its more closely comparable to the 4th Gen MP112 used in the '03-'04 Cobra's and 2nd Gen Lightning’s. Think of it as basically the "performance" version of the Eaton model. The 4th and 5th Gen models also incorporate a 60-degree rotor profile and both the 4th and 5th Gen MP series incorporate an internal bypass valve. The 5th Gen differs by adding more aggressive port timing (since unlike the standard Eaton, the Magnson Supercharger doesn't need to meet noise constraints for OEM requirements). Both the inlet and outlet side also have improved shape and increased volume for better flow and efficiency.
Also, the Explorer Express kit actually uses a 4th Generation version of the Eaton MP90. An improvement for certain over the 3rd Generation huffer found on the T-Bird/Cougar, but still no comparison to the Magnuson.
Recent testing has actually shown that when stacking a modern 4th Generation Eaton blower against a comparably sized and the more "creatively advertized" Twin Screw compressor in a head to head comparison, that flow and efficiency results between the two are actually quite similar. Generally, efficiency levels with the Eaton are actually better in the lower regions than the Twin Screw and the Twin Screw tends to promote better efficiency up top.
The 5th Gen Magnuson on the other hand has been shown to consistently best the more renown Twin Screw design all the way across the board.
...but you'll never hear companies like Lysholm, Opcon, or especially Kenne Bell acknowledge that one.
So yes....this is a good blower. Your big issue at this point will be fabbing up a lower manifold for it.
