• I can list out the changes, not particularly ordered but this is the gist:

    • Existing cylinders machined out of the engine cases and replaced with new, 100mm diameter Nikasil cylinders, which close the (previously open) deck. This boosts capacity to 3.7 litres from the 3.4, and 3.9 from the 3.6
    • Carillo rods, custom pistons
    • Custom ITB's with Porsche turbo injectors (as they're relatively inexpensive and we know they support our target power), dynamic ram pipes
    • Custom Piper cams (three grinds available, sport, very-sport, track)
    • Heads extensively ported and profiled, custom valves which are 1mm diameter larger than stock
    • Titanium valve hardware
    • Custom valve springs
    • Custom, machined from billet tappet chests
    • Dual stage oil scavenge pump for bank 2 (duplicates NLA X51 part)
    • Custom equal length manifolds
    • The above designed for an 8,500 rpm redline

    I like the idea of angry cams, 8,500 rpm and ITB's, should be a nice balance to the somewhat vocal exhaust. RIP getting into quiet track days.

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