[brentil]

[4.1] - What can I alter and still stay Stock [details]?

• Body Work
  • Accessories, guages, indicators, lights and other appearance, comfort, and convenience may be altered as long as it does not effect performance, handling, or reduce weight.
    • Extra guages/mounting hardware for them
    • Sound systems
    • "Grounding Kits" for sounds systems as long as they serve no other purpose
    • (Not Permitted) Dual outlet rear valence, local events may let this slide but Nationals would be a definte NO (correction)
    • light kits
    • (Not Permitted) Seats
    • (Not Permitted) Tow hook/tie down removal
  • Extra hood straps or fastners are permitted. These are items to help ensure your hood does not come open while driving.
  • Fuel tank cap. You can replace the fuel tank cap with any type with a locking type or designer types for example.
  • (Not Permitted) Since our cars have air bags in the steering wheel you are therefore not permitted to change out the steering wheel.
  • The tire repair kit can be removed from the trunk.
  • One rear trailer hitch may be added as long as it serves no other purpose (like welding it jsut so to act as a stiffening member).
  • Tow bar brackets may be installed.
  • Any items you can't hold down with attachment points designed from the factory can be removed. No items come to mind with the Sky though.
  • Roll bars and cages may be added. [More detail later on these] Roll bars may be welded to the car. Roll cages must be bolted to the car and must fit within the driver/passenger compartment.
  • Extra driver restraints may be added. You can not cut the seats to make them fit or remove the stock restraints however. [More detail later on this.]
• Tires
  • Any tire originaly equiped on the car in that model year may be used. For us that means the RS-A.
  • Non-original tires must meet several requirments and not be on the official NO list. (Currently not tires are listed.)
  • The tire must be listed in the current or previous two years of the SCCA Tire Guide & Tread Design Guide and DOT approval.
  • No limited run tires that are only made for a limited wheel size.
  • The tire msut be sold in at least four different wheel sizes with a total of at least 6 overall sizes.
  • The car can not be modified to allow the tires to fit.
  • Tires with zero tread depth are not permited.
• Wheels
  • Any wheel may be used on our car as long as it meets the following restrictions.
  • 18"x8"
  • +/- 0.25" offset: 49mm ~ 61mm is the range required
  • Wheel spacers may be used on wheels with the wrong offset to make them fit the correct size.
  • Different lug nuts can be used.
• Shock Absorbers
  • Shock absorbers may be replaced as long as the number, ype, system of attachment, and attachment points are not altered. They must meet the following guidelines as well.
    • Maximum of two seperate external shock damping adjustment controls.
    • Suspension geometyt and alignment capability can not be altered by the replacement of the shock absorbers.
    • You can use shocks with adjustable spring perches but the part the spring location must be the same compared to the stock part.
    • When fully extended the shock absorber must be within +/- 1" of the stock absorber.
    • (Not Permitted) Electronically controlled shocks.
  • The mounting hardware for the shock absorber must be the stock parts. However the bushing material may be different along with the use of different bushings which fit the original parts without modification.
  • The center hole of the upper shock mount assembly can be enlarged to the minimum size needed to fit the new parts. [Read the main rules for the details.]
  • Holes may be made in the bodywork to permit lines for external shock absorber resevoirs.
• Brakes
  • You can replace your brake lining with alternate brands/materials from those of the stock parts.
  • (Not Permitted) Replacement metal brake lines.
  • Alternate break bleeder fittings may be used.
• Anti-Roll (Sway) Bars
  • Front anti-roll (sway) bars
    • You can replace, add, or remove front anti-roll bars.
    • You can use any bushing material.
    • You may not modify the body, frame, or other componenets to fit a non-stock anti-roll bar. You may drill holes for mounting however.
  • Rear anti-rill (sway) bars
    • No modifications are permitted.
• Suspension
  • The stock springs must be used and can not be cut, shortened, or collapsed.
  • Both the front an rear suspension can be adjusted within the range they were designed to.
  • (Not Permitted) Suspension bushings may not be replaced with those of different materials or dimensions. So polyurethane bushings can not be used.
• Electrical System
  • Spark plugs, points, ignition coil, and high tension wires may be replaced with any other part.
  • Ignition settings can not be altered outside of the factory spec.
  • (Not Permitted) Changes to or reprogramming the electronic engine management system is not permitted. So no retunes, reflashes, chip replacement, or piggy backs are permitted.
• Engine and Drive Train
  • The air filter element may be replaced with any other part that fits the factory housing. No other modifications are permitted to the air intake.
  • (Not Permitted) Rotating and reciprocating parts rebalancing.
  • (Not Permitted) Port matching.
  • The exhaust system may be replaced from the catalytic converter (cat-back). This is the only change permitted to the exhaust system.
  • Any oil filter may be used.
  • Any oil & grease may be used.
  • The addition of water expansion tanks is allowed.
  • The addition of oil catch tanks is allowed as long as the PCV system is not altered.
  • A scattershield may be added.
  • Thermostats may be added or substituted.
  • Silicone replacement hoses can be used as long as they meet the requirments in the rule book.
  • A device to lock out reverse is permitted.
  • Limited-slip differential, transmission and differential ratios,
    clutch mechanisms and carburetion, fuel injection must be stock.