Valid from January the 1st 2010 until further notice.
These rules & regulations have been drawn up from the Original Stock Hatch rules taking in to account any input from drivers and scrutineers, so as to give every stock hatch driver within NASA an equal chance wherever they may race at and whoever they may race against.
Any stock hatch car not complying with these rules and regulations will race in its standard NASA class.
A steering committee to be set up with nominated representatives from every club / league with a stock hatch class, to meet during the year to discuss and amend the rules as deemed necessary.
THE OBJECTIVE
To create a very low cost introduction to Autograss Racing which requires minimal car preparation skills yet offers high-speed racing and room for some creative car building.
THE PRINCIPAL
All components should be standard, off the shelf, units. There should be no machining or specialised fabrication in any car. The cars should be easy to build, run and police. The class will work on the principal of honesty and trust.
Drivers will be expected to maintain cars in a tidy and presentable condition.
Cars arriving at scrutineering with obvious severe body damage will be turned away.
CONSTRUCTION RULES
These rules will be absolute until changes have been passed by the Stock Hatch Steering Committee. It is envisaged that rule changes will only take place at the end of a racing season and will be available in good time for winter build projects.
1. Any car attempting to defeat the spirit of the class will be deemed illegal.
2. All cars must comply, in every way, with a NASA class. Nominally Class Six.
NOTE: Check class rules carefully or ask for advice. Some cars cannot run in NASA classes. Unless a car fits in a NASA class it cannot be licensed, this is beyond our control.
3. Cars must be Front Wheel Drive, hatchback vehicles with engine capacity between 1131cc and 1600cc with only two valves per cylinder.
4. Minis and their derivatives are not allowed. Metros may be used.
5. Forced induction is not allowed.
6. Any engine or gearbox may be fitted to any body shell provided that they are of the same marque. e.g. an Astra or Nova may only have Vauxhall components; An Escort or Fiesta may only have Ford components. The gearbox must fit directly on to the engine without any modification to either the engine or gearbox. A flywheel shield MUST be fitted
7. Engine and gearbox must remain "as produced". (Due to the shortage of 1.6 Vauxhall camshaft kits 1.4cc camshaft kits may be used). Engines are to be used in their entirety - no mixing of components from different types / sizes of engines. Gearbox internals must not be interchanged.
8. The only machining allowed on engines is for STANDARD overhaul - No lightening or balancing etc. Boring out to +20thou is permitted (even if this increases the capacity beyond class requirements). Decking of blocks is prohibited. Three angle valve seats are allowed, there must be no machining of the throats.
9. Minor modifications to engine/gearbox mountings only are allowed to facilitate engine swaps. Engines intended for rear wheel drive cars may not be fitted.
10. Locked or limited slip differentials are not allowed. Cars will be subjected to spot checks after races and any tight (3 lb-ft max) differentials will be deemed against the spirit of the class and therefore illegal.
11. Engine/gearbox must be fitted in the original position
12. All engines must be drilled and be ready to be sealed. Provision to be made for rocker cover and cylinder head and ECU sealing. Anyone who has NOT drilled their engine will still be able to race but NOT be eligible for any points. If you are unsure where to drill your engine please ask.
13. Fuel injection is allowed provided it is standard on the engine used. Fuel injection engines must remain injected.
14. Fuel injected engines: Original injection system for the engine must be used including management / control equipment. ECU is to be mounted in an easily accessible position to allow for checking, sealing & replacing. ECU may be subject to random checks and temporarily replaced by club or alternative ECU if required by the scrutineers. The ECU to be identified to the car by marking of the club number on them.
15. Air filter & housing free.
16. Non-injection engines: Carburettor, air filter & housing free providing the carburettor fits directly on to the standard manifold without any adaptors or modifications to either carburettor or manifold.
17. Inlet and exhaust manifolds must be standard for the engine used. No modification to manifolds. Four branch manifolds are not allowed. Exhaust system beyond the manifold is free.
18. Radiators are free but must remain in their original position as far as possible.
19. Suspension system and mountings must be standard. Springs may be fitted from any car within the same model range. E.g. Any Nova springs on any Nova, any Peugeot 205 springs on any 205 etc. Lowering springs may be used. No excessive lowering of suspension - scrutineers decision is final!
20. Shock absorbers are free. Up rated shock absorbers must fit on original mountings without modification. Adjustable spring platforms are not allowed.
21. Wheels and tyres are free but must comply with the NASA class rules.
22. Skinning of doors is allowed (on 4 door cars only the front doors may be skinned). No other modification to the shell is permitted other than the filling of lighting apertures etc. The entire floor, roof and bulkheads must be as manufactured.
23. Original front & rear bumpers must be fitted.
24. Body shells must retain their original silhouette. I.e. No scoops, bonnet bulges, spoilers etc unless standard. Cutting or widening of wheel arches is allowed as is the fitting of arches & side skirts in accordance with NASA rules.
25. The over riding principal is that cars must be constructed from standard parts appropriate to the manufacturer of the body shell. The scrutineers' decision will be final. Any car attempting to defeat the spirit of the class will be deemed illegal. If you are in any doubt at all, PLEASE ASK FIRST, we would rather spend a few minutes on the phone than have to "fail" your car.
26. Definition of standard: A mass-produced vehicle, or parts there of, which has been available for general sale through the manufacturer or importer's entire dealer network in the United Kingdom. Any vehicle or part of a vehicle, which may be considered as a "homologation special" is excluded. Engine, drive train or body parts sold or intended for competition use are not allowed with the exception of springs, shock absorbers, arches & side skirts as stated above.
27. It is accepted that these rules may need to be altered or defined however it should be noted that the principal of no modification remains absolute. Drivers are welcome to ask the steering committee for a change or definition of the rules. Details of any such changes or definitions will be made available to all Stock Hatch drivers.
RACING & LICENCING
1. Stock Hatch 1600 will be run as a separate class.
2. All Stock Hatch 1600 cars will run off a straight-line start regardless of specification.
3. Stock Hatch 1600 cars will be licensed according to their NASA class.
4. In handicap races cars will start according to the organizing clubs discretion.
5. Races will be run according to NASA rules, e.g. Non contact.
IF YOU HAVE ANY DOUBTS, CONTACT ANY MEMBER OF THE STEERING COMMITTEE.