The owner of this very unique set-up was looking for big power from a naturally aspirated H series engine.  This set-up was planned over the span of a few years and has finally reached its completion.  AV Tuning & Development had a custom set of 90mm 12.5:1 CP pistons designed for this application to be used with AV’s custom 2.4x stroker kit.  For valve-train we went to Skunk2 Racing to get the best camshaft available on the market for this Naturally Aspirated set-up, the Skunk2 Pro3+ camshaft.  Using other components such as the TWM 52mm ITB’s, Injector Dynamics 725cc fuel injectors, Hondata s300, Hytech Exhaust Manifold, and custom AV Tuning & Development 3″ Stainless steel exhaust helped to surpass the client’s original goal and make 281whp/210tq on pump 93 octane gas.  Very good power for pump gas with a rather low 12.5:1 compression ratio.  With a race gas tune in the future we expect gains of 14-20whp/tq.  Stay tuned for further information and a detailed gallery of this build.

Run_001 – Air Box Installed   Run_004 – Air Box Removed (Straight ITB)

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