B.1. Definition
Open cockpit two (2)seater rear engine sports racing car using a standard Ford 2000cc single overhead camshaft “NE” series engine with a two-venturi carburetor. 

Sports 2000 is a Restricted class. Therefore any allowable modifications, changes,or additions are as stated herein. There are no exceptions. IF IN DOUBT, DON’T. Homologation is required for all cars registered after January 1, 1983.

B.2. Safety Requirements
All safety equipment shall comply with Section 17., of the General Competition Rules.

B.3. Chassis
  a. Unrestricted except that the use of carbon fiber composite structural materials is prohibited. No engine oil or water tubes are permitted within the cockpit. The engine will be mounted upright and aligned fore and aft in the chassis.
  b. Swift DB-2 and DB-5 (ed. DB-5 not eligible for North America Chapter SRCC series) vehicles shall have a properly installed crush box fixed to the foremost bulkhead to protect the driver ’s feet. The box shall meet the following requirements:
      1. It shall enclose a volume of at least 864 cubic inches (.5 cubic feet).
      2. It shall extend at least 10 inches forward of the front bulkhead.
      3. It shall be constructed of aluminum at least .040 inches thick, carbon fiber or kevlar.
      4. The box may have access holes not exceeding 90 square inches in total.
  c. All cars must have a longitudinal barrier in the left leg area forward of the dash substantially strong enough to prevent the left foot from moving more than 3 inches to the left of the vehicle centerline in the event of a side impact.
  d. It is the intent of these rules to minimize the use of “ground effects” to achieve aerodynamic downforce on the vehicle. Thus, the chassis and body surfaces which comprise the underside of the car shall not deviate from a flat plane by more than 2.5 cm (one (l) inch). This deviation may not be used to create an aerodynamic device. For this purpose the underside is defined as being within the rectangular area along the length between the front edge of the front wheels and the rear edge of the rear wheels and across the outside of the front and rear rims. No aerodynamic devices (e.g. “skirts,” body sides, etc.) shall extend below this surface anywhere on the car to the rear of the front wheels.

B.4. Bodywork Including Airfoils
  a. The body shall provide a cockpit for two (2 )seats and cover all mechanical components including wheels and suspension members except for the exhaust pipe, induction system, and camshaft cover which may protrude through the engine cover.
  b. Between the front and rear axle lines the body shall:
      1. Maintain over a minimum of 70% of the length of the wheelbase and over a depth of 20cm (7.9 inches) a minimum body width exceeding the greatest overall width across the tires less 15cm (5.9 inches).
      2. Exceed in height the top of the tires over a width of 50cm (19.7 inches) excepting only cockpit and engine openings. There shall be no gap between the main body and the mudguards. The mudguards shall cover the full width of the tires around an arc of 120 degrees, which shall extend forward ahead of the axle centerline on the front and rear wheels and behind the rear wheels to at least 7.5cm (2.95 inches) above the axle centerline.
  c. Maximum vehicle length forward of the front axle centerline: thirty- three (33) inches. Maximum vehicle length rear of the axle centerline: thirty-seven (37) inches.
  d. The body above chassis level in the region of the cockpit shall not be reinforced in any way which would complicate or hinder the rescue of the driver. The cockpit opening seen in plan view shall be symmetrical about the longitudinal axis of the car and shall be large enough for a horizontal rectangle of 80cm (31.5 inches) by 40cm (15.75 inches) to be passed through with its minor axis aligned with the vehicle’s longitudinal axis.
  e. Space for two (2) seats shall be provided, each of at least 40cm (15.75 inches) width, and shall be positioned symmetrically about the vehicle ’s longitudinal axis. There shall be at least 25cm (9.9 inches) wide foot space for both driver and passenger measured at the pedals. The passenger space should provide as much seat space, elbow room, foot, and leg room in terms of length, width, and height as that of the driver. Battery boxes and fire systems are permitted in the passenger seat area.
  f. Maximum height with driver on board, excluding safety roll-over bar and mirrors, shall not exceed at any time 90cm (35.4 inches) measured from the ground.
  g. Airfoils and/or spoilers mounted at the front of the vehicle are permitted. These airfoils and/or spoilers may only be adjusted in a horizontal plane.
  h. Adjustable airfoils and/or spoilers mounted at the rear of the vehicle shall be in the form of a flat plane and may only be adjusted within +/- 20 degrees of vertical.
  i. There shall be no gap between these surfaces, or other airfoil, and the main bodywork.
  j. All ducted air for heat exchangers (water/oil) shall pass through those heat exchangers.

B.5. Engine
The only permitted engine is the Ford 2 liter single overhead camshaft “NE” series engine or the 1971-74 Pinto/Capri 2 liter single overhead camshaft engine with nominal bore 90.84mm and stroke 76.95mm (Note: All blocks shall contain casting number HM6015BA, HM6015AA or HM6015BB. Dashes in the casting number are not relevant.) Production tolerances are permitted providing the total swept volume does not exceed 2000cc.

a. The camshaft and rockers shall remain entirely unmodified; they shall be fully manufactured and ground by the Ford Motor Co. Offset keys are permitted. It is prohibited to grind from blanks, regrind, or reprofile. Tuftriding or Parkerizing is permitted. Maximum valve lift at determined points by camshaft rotation will be established. The use of a low rate substitute valve spring is permitted. Load characteristics of special checking spring: twelve (12) pounds at 1.417 inches, thirty (30) pounds at 1.000 inches. Maximum valve lift against cam angle with zero tappet clearance: 0.400 +/-0.005.

b. A standard crankshaft shall be used. Spot machining to achieve balance is permitted. Tuftriding, Parkerizing, shot peening, shot blasting, and polishing are permitted. Minimum weight: twenty-seven point five (27.5) pounds.

c. The flywheel shall be a standard component. The minimum weight is 14.4 pounds with ring gear. The flywheel may be machined to achieve minimum weight. Spot machining to achieve balance is permitted. Flywheel bolts are free and locating dowels are permitted. A 1600 GT starter ring may be fitted. The use of any single plate clutch is permitted provided no modification is made to the flywheel other than changing the points of attachment of the clutch to the flywheel. Carbon fiber clutches are not permitted.

d. Maximum compression ratio will be controlled as follows:

1. Minimum Cylinder Head combustion chamber volume 49cc (not including head gasket). Polishing and/or tooling of the cylinder head to achieve only the required combustion chamber volume is permitted.
2. Standard Ford gasket; minimum thickness .9mm, minimum diameter of cylinder aperture 92mm.
3. Pistons shall not protrude above cylinder block surface at TDC.

e. It is permissible to reshape inlet and exhaust port by removal of metal within limits. Addition of material in any form is prohibited. Maximum diameter of inlet port at manifold head face 39.5mm. Maximum dimensions of exhaust port at manifold face 35.5mm x 27mm. The distance between the valve centers and the angles of the valves shall not be altered.

f. Pistons shall be standard Ford production pistons, unmodified in any way except for balancing and as detailed herein.

The following combinations are permitted:

1. Piston P/N 80HM6102LA with rings and pin. Standard Ford connecting rod with bolts, without bearings. Minimum permitted weight =1332.5 grams
2. Piston P/N 85HM6102DA with rings and pin.
   Standard Ford connecting rod without bearing; any rod bolt and nut may be used provided no modification is made to the connecting rod.
   Minimum permitted weight =1255 grams.
3. Piston P/N 21426, casting P/N 21426 (AE Hepolite)with rings and pin. Standard Ford connecting rod with bolts, without bearings.

Minimum permitted weight =1255 grams.

All three piston rings shall be fitted, compression rings and scraper (second) shall be one piece, single homogeneous material-type with conventional plain gaps. Chromium plating of the top ring is optional; oil control rings shall be either single piece twin-land type or apex three piece (two rails and an expander). Localized machining of the gudgeon pin bosses to achieve balance and weight by simple machining; all external surfaces, dimensions, and profiles shall remain standard with the exception of the top surface of the piston crown which may have simple machining to achieve balance, and as required in Section 17.1.5.B.5.d.3..

4. Piston P/N M-6102-B200 with pin. Minimum permitted weight =1255 grams w/rings,standard Ford or alternate connecting rods with bolts, without bearings.
NOTE:M-6102-B200 piston assembly is now made by JE and is visually different. I.D.Marks:M-6102-B200, Ford racing logo. All marks pin stamped on wrist pin bosses.

g. Valves shall remain standard; no reprofiling or polishing is permitted. The original forty-five (45) degree seat angle shall be maintained.
      Maximum face diameter inlet 42.2mm.
      Maximum face diameter exhaust 36.2mm.
      Maximum valve stem diameter 8.4mm.

j. Engines will be mounted upright, and aligned fore and aft in the chassis.

k. A single carburetor only will be used on a standard inlet manifold. The carburetor will be a Weber 32/36 DGV 26/27mm venturi, its origin being from a 1600 GT “Kent” or 2000 SOHC NE engine. The Holly 5200 32/36 carburetor also may be used; carburetor with the swaged fuel inlet fitting shall be replaced by drilling and tapping the carburetor body for a threaded fitting. The air cleaner may be removed and a trumpet fitted, and jets may be changed, both throttles may open together, cold start devices and diffused bar may be removed, internal and external antisurge pipes may be fitted, and seals on emission control carburetors may be removed. The bottom of the lower column portion of the auxiliary venturi may be machined for purposes of high speed enrichment. No other modifications are permitted. Chokes (venturi) shall remain standard and no polishing or profiling is permitted.
  l. The addition of material by any means to any component is prohibited.
  m. It is permitted, as a means of repair, to replace damaged valve seats and cylinder bores by replacement cast iron valve seat inserts and cast iron cylinder liners; valve guides may be replaced with cast iron or bronze, all to standard dimensions.
  n. Balancing of reciprocating and rotating parts is permitted only by removal of metal from locations so provided by the manufacturer.
  o. Non-standard rocker covers are permitted providing they in no way improve the performance of the engine.
  p. Standard valve spring retainers shall be used,and single valve springs only are permitted.Shims are permitted, and valve springs are otherwise free.
  q. Exhaust system and manifold are unrestricted, within SCCA safety regulations.
  r. Lubrication system is unrestricted; dry sump is permitted. Localized machining of the cylinder block is permitted to allow fitting of the oil pump.
  s. Oil coolers are unrestricted.
  t. A liquid cooling system is mandatory, but radiator and water pump are unrestricted. The radiator, if housed in or incorporating a cowl air-scoop deflector, shall comply with body regulations.
  u. Fuel Pump: Unrestricted.
  v. Distributors are unrestricted providing they retain the original drive and location. The distributor is defined as the component which triggers the L.T. current and distributes the H.T. current. The Ignition Timing may only be varied by vacuum and/or mechanical means.
It is prohibited to use any other method or component to trigger, distribute, or time the ignition.
  w. Only the standard inlet manifold shall be used. The ports may be reshaped by the removal of metal as long as the following dimensions are maintained: maximum size at head face =1.437" (36.5mm), maximum size at carburetor flange =3.405"(86.5mm) x 1.595" (40.5mm). The carburetor seat face may be machined to horizontal in the fore to aft plane. The diameter of the ports may exceed the above listed dimensions if the casting bore is untouched and in its original state. The water passages in the inlet manifold may be plugged. Holes in the inlet manifold resulting from the removal of emission/vacuum lines shall be plugged.
  x. Gaskets and seals are unrestricted except for cylinder head gasket, carburetor-to-inlet manifold gasket, and inlet manifold-to-head gasket which shall be standard Ford manufacture for the engine. Carburetor to inlet manifold gasket as used with Holley 5200 is allowed.
  y. Pump, fan, and generator drive pulleys are unrestricted.
  z. The crankcase breather may be altered or removed, but all breathers shall discharge into a catch tank.
  aa. Mechanical tachometer drives may be fitted.
  bb. Generators are optional.
  cc. Standard oversize and undersize bearings are permitted. This does not allow reducing the bearing surface area by reducing the width of standard bearings.
  dd. The use of non-standard replacement fasteners (nuts, bolts, screws, studs, and washers) which are not connected with or which do not support the intake manifold or any moving parts of the engine is permitted.
  ee. Only modifications or additions specifically covered by these regulations are permitted. All engine components not covered by these regulations shall remain completely standard and unmodified.

B.6 Suspension
All parts shall be of steel or ferrous material, with the exception of hubs, hub adapters, bell cranks, pivot blocks, and bushes. Front and rear hub carrier material shall be steel or aluminum alloy. Titanium prohibited. Springs: steel only. (Rear hub carrier material on car manufactured before January 1, 1983 is unrestricted, but replacement parts shall be steel or aluminum alloy.)

B.7. Brakes
Aluminum alloy brake calipers are prohibited, otherwise unrestricted.

B.8. Shock Absorbers
Design: Unrestricted. Case material: steel or aluminum alloy.

B.9. Steering
Unrestricted.

B.10. Wheels and Tires
Thirteen (13) inch diameter wheels with maximum front rim width of six (6) inches and rear eight (8) inches are the only wheel sizes permitted. Material is unrestricted providing it is metal.

B.11. Transmission
  a. The gearbox shall include an operable reverse gear, capable of being engaged by the driver while normally seated, and contain not more than four forward gears. The ratios are unrestricted.
  b. Rear wheel drive only is permitted.
  c. Final drive ratio is unrestricted.
  d. The differential cannot be modified in any way to limit its normal function. Torque biasing, limited slip, and lock differentials are prohibited. Excessive shimming of the differential is prohibited.
  e. The use of automatic and/or sequentially shifted gearbox is prohibited.
  f. Electronic assisted gear change mechanisms and electronically controlled differentials are prohibited.
  g. Gearboxes with shafts that are transverse to the longitudinal axis of the chassis are not allowed. The sole exception are the gearbox final drive (crownwheel) shaft axis and final drive shafts (half shafts). All change gears must be located in the case aft of the final drive.

B.12. Fuel Cells (Per Section 17.,and 19.)

B.13. Fuel Capacity
41 lit.(10.8 gal) maximum.

B.14. Electrical
A self starter is mandatory, operated by the driver. Two stoplights and two taillights, each of at least fifteen (15) watts rating shall be operable.

B.15. Weight
1310 lbs., minimum with driver.

B.16. Windscreens are optional