NASA Time Trial

Rules/Classification

Rules Addendums and Clarifications

Technical Bulletins:

Technical Bulletin 3-4-08

Mazda RX-7 13B:
1. Modification of the Variable Dynamic Intake (VDI) by removal of the actuator mechanism, and permanently wiring the VDI open will be a No-Points Modification.

2. Modification of the 5th and 6th port runners, by removal of the actuator mechanism, actuator rods, and removal of the sleeves themselves, will be a No-Points Modification. As well, removal of the actuator mechanism and actuator rods, and fixing the sleeves in the open position will also be a No-Points Modification. However, under either circumstance, if there is any filler material added, non-OEM sleeves added, modification of the OEM sleeves, or other modification to the runners, the car will need to be re-classed based on Dyno testing.

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Techncal Bulletin 2-25-08

Valve Springs and Retainers are added to the list of No-Points Modifications in 6.4.1.

CLARIFICATIONS:
Here are some clarifications that have been made by NASA TT Administration when competitors have had questions about the rules. These clarifications qualify as "Technical Bulletins" under section 6.1 of the rules, and should be treated as if they were written directly into the rules.

Clarification--Engine Blocks: Aftermarket engine blocks made by companies other than your car's original manufacturer, or those made by your manufacturer, but that are not identical to your original equipment constitute an ENGINE SWAP. It doesn't matter if they are the same displacement as OEM. All engine swaps need to be assessed by the Regional and National TT Director on an individual basis. These blocks allow for a much more "aggressive" modified rebuild due to their higher cylinder wall strenth, yet the rebuild would otherwise cost the same number of points as someone with the same size block that could not be as aggressive. We will charge you points accordingly, depending on the situation.

Clarification--Rear Suspension Upgrades: The combination of a panhard rod addition, torque arm addition, and changing from a 4-link to 3-link rear end suspension will be assessed +4, +4, +6 (for relocated rear suspension mounting points), for a total of +14 points.