Members Ryan F. Posted December 30, 2004 Members Share Posted December 30, 2004 12-28-04 To: Honda Challenge Competitors Re: 2005 Rule Changes This letter is to outline some of the significant rule changes that will be in effect for the 2005 racing season. The final rules package will be released on or before Jan 15, 2005. The main basis for the rule changes is to keep competition close while offering a wide range of competitive platforms. H1 a) Minimum Weights D series (single cam) = 1950lbs B16 series = 2100lbs B18, B20, and others not listed = 2200lbs K & H series = 2350lbs F series (2.0 liter) = 2650lbs F series (2.2 liter) = 2750lbs b) Engine K Series Cylinder Head- Must use unmodified OEM camshafts and rocker assembly that is sold with K series cylinder head. JDM is considered OEM and is permitted. Cylinder Head preparation must conform to rules in 16.3 © c) Brakes S2000- Allowed any brake as permitted in 16.2 (1) with 150lbs weight penalty NSX- Allowed any brake as permitted in 16.2 (1) with 150lbs weight penalty d) Chassis K-members may be modified altered for fitment of engines. H4 Cars currently classified in H5 will also have the option to run in H4 at a lower weight. 86-89 Integra = 2275lbs 88-91 CRX DX = 1900lbs 85-87 CRX Si = 1900lbs 92-00 Civic CX/DX/LX = 2175 H5 Cars equipped with vacuum advance distributors may perform necessary distributor modifications to install other Honda electronic advance distributors. Quote Link to comment Share on other sites More sharing options...
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