[Autox] Rule 4.9 bmod part one

[j g]

proposal that is fair.




Modified Class B
All national classed  Formula Cars or Sports Racers legal under the current
year GCR and one previous ,
unless specifically classed elsewhere, with the following exceptions..
 The  intent  of BMOD is to allow FIA and GCR legal vehicles of any year  a
way to maintain value by modifications that are reversible by weight or
minimum changes
that do not involve major subassemblies  of the vehicle to be modified to
compete both in solo or club racing as desired by the competitor.
 A solo only vehicle should be the exclusion not the norm in this class.
(weights shown are with driver): all references to displacement unless
otherwise
stated are to 4 stroke, otto cycle derived , unless specified.
A. Spec tires are not required.
However all tires used by any competitor must be available in sizes ,
compounds and construction used by any competitor in the included classes
be  announced 10 weeks in advanced and  available for purchase as well as
stocked at national events ; if not available within 6 weeks of national
events.  
The intent of this rule is to prevent rogue or test tires not available to all
competitors to be used in preparation and running at any  national event .
B. Minimum wheelbase of 80 inches.,
C. Sports Racers and All Open Wheel Cars Including Formula
Atlantics
1. May use any automotive based 2-valve motor up to 1300cc,
any 2-stroke motor up to 900cc Normally aspirated only   1100pounds ,
2. May use any 2-valve  production engines up to 1615cc or any rotary piston
engine meeting  GCR rules .
and non modified production non automotive based engines Up to 1005cc at a
Minimum Weight: 1110 lbs normally aspirated only
3. May use any four- or more valve engine up to 1615cc. Any 2-
stroke up to 1300cc, Mazda 12A rotary with any porting, any
carburetion. May use fuel injection without weight penalty
required by the GCR. Minimum weight: 1200 lbs Normally aspirated only.
4. May use any naturally aspirated automotive derived engine up to 3000cc.
Minimum
weight: 1300 lbs
5. Minimum rim width: none.
6. Maximum allowed rim width: 15 inches.
D. Formula 2000, classed in Formula Continental per FCS no engine
modifications
1. Minimum weight 1090 lbs
2. Rim width is unrestricted.
3. Airfoil maximum size per Formula Atlantic GCR rules.
E. Aerodynamic restrictions for Sports Racers:
The total area when viewed from the top of all wings shall not
exceed 8 square feet. The current GCR CSR and DSR 45% flat
bottom rule and all other aero specifications shall also apply to
ASR. No aerodynamic device not part of the body work 
 may extend forward of a plane running vertically
through the front axle more than 16 inches , out riggers booms or
Attachments not originally part of the body work  intended to circumvent the
intent
of this rule are considered in violation of this rule.