Interior

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Rear View Mirror/Visors

Street Prepared says you can remove these (15.2.Q), but it seems against the point of SM... Maybe get clarification?

Top

Need to find a hardtop. Check if John wants to sell me my busted old one. We just need it to work, not be pretty.

Need to completely tear out the soft top and see if it's sellable.

We're apparently allowed to remove the soft top because of the Club Sport edition. This was clarified in the March 2003 Fastrack:

"...may update to the hardtop/soft top specifications of the Club Sport package, which permit the car to compete with the hardtop on, and/or with the soft top on, or with both removed."

Sound Deadening

How much of this sort of thing are we allowed to remove? Need to scrutinize rules...

Blower Pipe

Need to pick up the non-A/C blower pipe from Jim and then install it. The A/C box it's replacing is 6.7 lbs.

A/C

Need to do some research to make sure there aren't any more computers anywhere in the car for the A/C system to remove. I assume the heater controls aren't worth swapping out to a non-A/C unit (no weight savings), but might want to verify that in case there's a bunch of extra circuitry in there to control the A/C.

Radio/Airbag

Need to remove the radio, speakers, and any wiring therein.

Check for and remove the airbag battery from under the dash. Remove the sensors from both fenders and the front of the car, and as much wiring as possible.

Solo Rules

16.1.O. Radio/Stereo and airbag equipment and/or its component parts, including wiring, control modules, antennas, amplifiers, speakers and their enclosures, etc. may be removed provided the part added, removed, or replaced serves no other purpose. Any visible holes that result from the removal of equipment must be covered with a cover of unrestricted material. Covers may be used to mount gauges, switches, etc.

Seats/Belts

Need to find a nice comfy light main seat, and then a very light and uncomfortable passenger seat.

Are belts worth doing? Are they lighter than the stock belts?

Legality of harness bar? I remember there being some language about it. Something about definitely not serving any structural purpose.

Solo Rules

Seat rules come from SP:

15.1.F. The driver and front passenger seats may be replaced, with the following restrictions: Seats must be securely mounted per 3.3.3.B.2. The seating surface must be fully upholstered. Any replacement seat must be a full back, bucket-type automobile seat incorporating a functional headrest. Kart seats, low-back dune buggy seats, and other similar types of seat are expressly prohibited. Cars may have no fewer than the standard number of seats. The seat tracks are considered part of the seat and may be substituted. Alternate seat tracks may serve no other purpose. The standard seat belts may be removed to facilitate the installation of alternate restraints complying with safety requirements. An alternate seat which replaces an airbag-equipped seat is not required to have an airbag.

Belt and Harness Bar rules come from Stock, surprisingly:

13.2.J. Driver restraints as outlined in Section 3.3.1 are allowed. Seats may not be cut to allow for the installation of alternate seat belts or harnesses. Passive restraint systems may not be removed. A horizontal “harness bar” may be used as part of the installation hardware for allowed driver restraints provided it has no more than two attachment points to the chassis and is bolted at those locations. A ‘C’-type harness bar may also be used. It may have four bolted attachment points to the chassis (two primary, and two supporting connections to resist rotation). Truss-type harness bars are not allowed.

Gauges

Bought this and a 2 1/16" hole saw to drill gauge holes in it.

As for gauges:

• 30psi vacuum/boost
• Water temp
• Oil temp

The miata cluster comes with an analog oil pressure gauge, so I don't think I need to replace that.

It looks like the AIM MXL just got support to talk to a Megasquirt 3. Now to see if the MS3 can log oil pressure/temp as well as the water stuff. If so, it seems like a no-brainer to get an MXL for the dash... Here's a post on the MSExtra boards talking about it.

Steering Wheel

Car comes with some quick remove wheel. No idea what it is yet or if there's weight savings going to some other wheel... Steering wheel is basically unrestricted. Not required to keep functional horn button.

Windows

Currently has power windows. Need to find a set of manual windows to swap in. Hannah makes a good point that this may require also changing the inside door panel to get a hole for the levers. This in theory saves 4 lbs.