National Staff Greg G. Posted February 4, 2007 National Staff Share Posted February 4, 2007 The Revised 2007 TT Rules (v. 4.5 1-21-07) and the revised car classification forms have now been posted http://www.nasaproracing.com/rules/Time-Trial-Rules.pdf http://www.nasaproracing.com/rules/Time-Trial-Classification-form.pdf http://www.nasaproracing.com/rules/Time-Trial-Classification-form-SUR.pdf (note: the older version of the TTS-TTU-TTR Form had an error in the transmission modification calculation that has now been corrected.) The majority of the changes in this revision are in base class model groups. There were many changes for the '07 models, and we added a lot of new model groups. Please review the table to make sure that nothing changed for your car. There were a few changes to curb weights and classes of older cars that have been previously discussed on this forum. But, there have been a few changes, also, for some later models that needed to be separated from the older models, and grouped with the '07's. All changes are in red print. This is a summary of the other items addressed in this revision (also in red print). Most of these items have already been discussed on these forums. All issues were brought out during forum discussions or e-mails from competitors requesting clarifications of modifications: Weight Reduction-- no substantial change, just a few words to better clarify when the alternate weight method must be used. "or lightening of" and "or not otherwise assessed points" added Engine Drivetrain-- 11) Dry sump with motor lowering changed to +14 (from +15) 16) Air intake modification--"intercooler" piping and "hood air inlet(s)" mods added to the list 38) "Relocation of engine/transmission within 10 inches of OEM location +7" added Suspension/Brakes/Chassis-- 28) "+1 for "B pillar" harness bar not used for harness restraints" added Aerodynamics-- 3) and 4) "(top surface/tab) height" added to clarify measurement of wing height. 11) "Add vortex generator to roof, rear window, or rear deck +1" added No Points Modifications-- 11) "ratio" added to "Final drive ratio modification" 26) "unmodified" added to gasoline description 26) "Fuel additives are prohibited" added 41) "Seam welding of the body/chassis" added 42) "Harness bar--must be a single bar, placed between the "B pillars" of a car that does not have a roll cage or bar, at a height suitable to comply with the CCR harness rules. The bar must be used to anchor or guide occupant harness restraints." added 43) "Shock tower reinforcement plate (to strengthen tower shock mount location only--no bars)" added 44) "Shock mount replacement/modification (only if alreay taking points for both shocks and springs)(may raise or lower mount location up to two (2) inches if no horizontal movement)" added Section 8 On-Course Conduct Added: "Drivers are cautioned not to deliberately draft with another vehicle, except prior to making a pass. Prolonged drafting or "team" drafting may result in penalties for both drivers. This should do it for the '07 Rules. Any future issues will be listed here on these forums and on the national TT website http://www.nasa-tt.com Have a great season! Quote Link to comment Share on other sites More sharing options...
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