2020-07-27 - Official Miata Width

Category: Aerodynamics

Q.Based in the rear wing width rule I am trying to get an official answer on the width of the OEM NA...

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2020-06-02 - Individual Throttle Bodies (ITB)

Category: Drive Train

Q.Is there an established point value for ITB's?Technically they replace the Intake Manifold and Car...

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2020-04-01 - Fuel injectors

Category: Fuel Systems

Q.I would like to utilize OEM fuel injectors from a different vehicle (same brand & same year) w...

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8-Apr-2020 4:20pm - Miata Fastback Roof

Category: Mazda

Q.If I change out my hardtop for a fastback style hardtop, will this still be zero points? please se...

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8-Apr-2020 4:12pm - Driver's Side Intrusion Protection

Category: Roll Cages

Q.Can vertical bars be placed between the door sill and the lowest Nascar style bar without counting...

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20-Mar-2020 4:14pm - Engine Swap Oil Pan

Category: Swaps

Q.In regards to Rule 4.5.3:"Engine swaps include stock long block, stock exhaust manifolds, stock in...

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20-Mar-2020 4:12pm - Fabricated Engine Swap Parts

Category: Swaps

Q.as per Rule 4.5.3: "Engine swaps include stock long block, stock exhaustmanifolds, stock induction...

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2020-03-20 - Bumper Structure Replacement

Category: Chassis

Q.2020 requires "bash-bars" to be added if the car no longer has the OE bumper structure. When these...

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2020-03-25 - Rear glass/Lexan/Polycarbonate

Category: Body Work / Mods

Q.Need clarification on the rear window rules. Is glass ok if taped? Is Lexan /Polycarbonate ok W/O ...

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2020-03-20 - Welded Differential

Category: Drive Train

Q.Is there any point value charge for welding the spider gears in an OE open differential so that it...

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20-Mar-2020 3:55pm - Spec E46

Category: BMW

Q.Any concern with running Spec E46 in ChampCar (in EC)? A.No problem at all. Live to have you join ...

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2020-03-20 - Aero pan

Category: Aerodynamics

Q.What are the width limits of an aero pan? Is it the extreme widths of the car like a wing? Is it t...

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20-Mar-2020 3:49pm - BMW/Mini cage question

Category: BMW

Q.Hi. Looking at a Mini Cooper this weekend that appears to have a somewhat unusual rear stay mounti...

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2020-03-20 - Rolled Fender Trim

Category: Body Work / Mods

Q.After rolling my fenders to comply with the 10 to 2 rule, can I add some edge trim to cover any sh...

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20-Mar-2020 3:43pm - Miata - Intake Manifold Modification

Category: Mazda

Q.1999 MiataIf one were to:A. Modify a stock, cast aluminum intake manifold by cutting length out of...

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20-Mar-2020 3:40pm - 1993 Cobra engine

Category: Ford

Q.I have previously cleared this with Mike C so I want to re-clarify that for a 1993 Cobra engine th...

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2020-03-20 - Fuel Cell Displacement Blocks

Category: Fuel Systems

Q.The listed stock capacity for our car is 16 gallons.We would like to utilize a SFI 28.1 rated fuel...

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20-Mar-2020 2:37pm - BMW Front bumper cover

Category: BMW

Assuming this applies to the Chinese made E46 covers as well, can you verify?vBMW Bumper CoversUpdat...

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20-Mar-2020 2:30pm - Passenger seat rule clarification

Category: Materials / Car Build

Q.We installed a passenger seat in our car for HPDEs and to take advantage of practice days where pa...

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2020-03-20 - Repurposed Heater Core

Category: Drive Train

Q. I have planned to add an oil cooler to further protect the engine. Can I repurpose the removed fa...

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