Oktoberfest 2008 | Autocross

CLASSIFICATION OVERVIEW

Three or four performance levels (A, B, C and D) will exist for each model’s group.
Models are assigned to a specific level by definition.
Performance Level A is presumed the highest and C/D the lowest.
Three stages of preparation are herein defined.
Stage One preparation is permitted in the assigned base level.
Stage Two preparations elevate the car one level. (C>B or B>A)
Stage Three preparations elevate the car two levels. (C>A)

CLASSES

Class	Series	Level	Types of Cars
THURSDAY			FRIDAY
1	2002	C	1600-2, 2002
		B	2002Tii, 2002 Turbo, 1800tisa
		A	Open
2	3 Series w/4 cylinder engine	D	E21 320, E30 318 w/2-valve engine
		C	E30 and E36, 318 w/4- valve engine
		B	318ti, Club Sport, Z3 1.9
		A	Open
3	1 Series and 3 Series w/6 cylinder engine	D	325e, E21 320 and 323i, E30 323i
		C	E36 325i, 325is, 323i, E46 323i, Z3 2.3, E90 325
		B	E82 128i, E36 328i, 328is, E46 & E90 330i, Z3 2.8, 2.8 Coupe, Z4, E60 535i
		A	E82 135i, E90 335i
4	E30 M3 (1987-1991)	C	E30 M3
		B	Open
		A	Open
5	E36/E46 M3 (1992-2006) E92 M3 (2008)	C	E36 M3, Lightweight, Euro
		B	M Roadster (Z3 & Z4), M Coupe (Z3 & Z4), E46 M3
		A	E46 M3 Competition Package E90 M3
6	BMW MINI	C	MINI Cooper
		B	MINI Cooper S
		A	MINI GP, MNI JCW
7	Touring	C	524td, 525iT, 530iT, Bavaria, all 6-cylinder 7 Series, 2500s, 3.0S, 3.0Si, E12 5 Series, E28 5 Series EXCEPT M5, 6-cylinder E34 5 Series except M5, X5, 2800/3.0cs, 630, 633, 635, X3, X5 3.0, all 6-cylinder E60 5 Series
		B	8-cylinder E34 5 Series, E28 and E34 M5, E39 and E60 5 Series, all 8 and 12-cylinder 7 Series, 850, 840, E24 M6, M635, M1, Z8, 550i, 650i, ALL E65 and E66 7 Series, 8-cylinder X5
		A	E39 M5, E60 M5, E63 M6
8	Race		All BMWs that are not street legal

STAGES OF PREPARATION

STAGE ONE

Any Appearance, comfort or convenience modi-fications that do not materially reduce weight without affect on handling or performance are allowed.
Non- OEM body colors are allowed.
Any wax or surface layer friction reduction agents are allowed.
Alternate seats, belts and steering wheels are allowed.
Engine power chips are allowed.
Any non-R-Compound, DOT-approved tire with discernable tread, safely fitting specified wheels for this class may be used.
Drilled balancing weights are permitted.
Any wheel of stock diameter that does not require wheel spacers or body modifications, provided tire contact patch does not extend beyond fender opening when viewed from the top, perpendicular to the ground, is allowed.
Non-OEM wheel locks, Titanium, or alloy lug nuts, or bolts are permitted.
Any make and type of shock absorber using original type mounting hardware and attach-ment points is allowed.
Substitution, addition or removal of sway bars using any bushing material, OE mounting points, and OE style end links is allowed. Tubular bars are allowed.
Standard OEM springs may not be cut, shortened or collapsed.
Suspension may be adjusted within OE design parameters without cutting or modification.
Bushing type changes are not allowed.
Any spark plugs, points, coils and/or ignition wire brand is allowed.
Any make of exhaust system using OE header/ manifold without modification or removal of catalytic converter is allowed. Exhaust system must be operational.
Cooling system wetting agents are permitted.
Synthetic oils and lubricants are permitted.
DOT/FIA-approved auxiliary fuel tanks are permitted not to exceed FIA 200 liter capacity.
OEM active suspensions are permitted.
Quartz headlamp conversions, extra fog lamps, rooftop carriers, bike racks, ski racks, license plate frames and trailer hitches are allowed.
Limited slip friction clutching ratio, rear drive ratio, transmission ratios, carburetion and fuel injection must be of standard OE type.
Progressive 32/36 DGV 2-barrel type carbure-tors are considered as standard type.
38/38 DGAS or 40/40 DGAS are considered synchronous 2-barrels and are not allowed.
All brake linings and pads are allowed.
Non-stock brakes are allowed.
Drilled rotors and silicone brake fluids are allowed.
Strut braces are permitted.
Cone filter-type air intakes are allowed.
Short-throw shifters are allowed.
Non-stock transmission and engine mount bushings are allowed.
No modification of the mounting points are allowed.

STAGE TWO

Any non-software-programmable ignition system is allowed.
R-Compound tires are allowed.
Battery may be relocated, but not in passenger compartment.
Number of batteries may not be changed.
Ride height may be altered by change or modi-fication of springs using original attachment points.
Any type of suspension bushing material permitted.
Offset bushings and adjustable camber plate may be used.
Original mounting holes may be slotted.
Bodywork may be modified for tire clearance.
Tire contact patch may extend beyond bodywork.
Tires must be DOT approved.
Wheels may be any diameter, width or offset.
Limited slip differentials may be added or slip clutch friction ratio increased above 41%.
Locked/welded units are allowed.
Roll cages are permitted.
Exhaust headers are allowed.
Gasket matching, but not porting, is permitted.
Lightweight flywheels are allowed.

STAGE THREE

ANY OF THE FOLLOWING MODIFICATIONS ARE ALLOWED:

Any non-stock camshaft change.
Fuel injection modifications including inject-tors, flow meters, or control units such as Haltech, etc.
Rear drive ratio may be changed to greater than 4.11:1.
Carburetion changes greater than 2-barrel.
Nitrous, Turbo, or Supercharger additions.
Compression increased above 9.5:1 by change of pistons and/or shaving of cylinder heads.
Porting or polishing of intakes or cylinder heads.
Stroker engines or overbores beyond +1 mm.
Suspension change requiring cutting or weld-ing of any component other than the spring itself, such as spring mounts, control arms, or cross members.
Non-stock body panel materials; does NOT include Bondo.
User software programmable ignition systems and add on crank fire systems such as Electromotive.
Removal of bumpers, interiors and seats.

RACE

THE FOLLOWING MODIFICATIONS WILL BE CLASSED AS RACE:

Non-D.O.T. tires.
Non-street legal vehicles.
Stripped body shells.
Non-stock chassis/engine combinations.