Updated Mod List with costs:
$458 Junkyard 2.5 from Mazda6 with 54k miles.
$99 Busted splitter from our junk bin (repaired and glued it up, shot with some black paint to 'make new' again, will sell new version soon from China for $99)
$100 Used factory limited slip out of a 2010 from salvage yard
$499 Goodwin Racing Triple-Pass 32mm Race Radiator
$1076 17x10 6UL Wheels
$229 RoadsterSport Prototype Sways
$192 RoadsterSport Endlinks
$1125 MeisterR ClubRace coilovers with 10kg/6kg
$599 RoadsterSport MAX Power 1.8 Inch Header - Ceramic Coated
$549 RoadsterSport HELMHOLTZ MX5 Miata Midpipe with Converter
$469 RoadsterSport SuperQ muffler
$219 Moroso 63779 NC Aluminum Coolant Expansion Tank
$948 Xero Limit Cams & Tune
$279 Xero Limit Intake
$199 RoadsterSport Competition Engine Mounts
$89 Whiteline offset bushings front only.
$398 RX-8 front hubs
$132 ARP wheel studs
Total Mods $7659. The original challenge was to see if we could get to top of the time sheets with 5k in mods, we certainly went over budget. Some of the items not needed right away like the hub upgrade for running 17x10 wheels for years, the stock hubs would wear out prematurely so we just dealt with that up front. We also went first class on some items where we could have saved, our lower cost standard midpipe would have saved $100, could have saved another $100 with non-ceramic coated version of our header, could have used Ford version of the MZR motor for as little as $200 from the junkyard, those without event sound limits could have used our Race muffler for half the muffler cost and saved more weight, etc.
Nonetheless, still amazing to me that an NC you can buy all day for 5k plus about 7k+ in parts can show up to 100 car event and beat everything else with doors. And we have a few customers per month buying these early NC with blown motors for about a grand, so a customer using the Ford version of the motor could duplicate this build for under 10k, including purchase of the Miata. It beat plenty of 100k machines this past weekend, plus every BMW with an 'M' on it, Porsche GT3, Corvettes, Lotus this and that, etc. It underscores our belief that the NC is really a great choice to build for speed, and the opportunity starts with ability to just about drop in the 2.5 liter MZR motor. Tires are not mods so we didn't count those or other expendables like gas that you need to get whether slow or fast or stock, etc..
The labor is 30 hours give or take, half of that is the engine swap and the more talented shadetree mechanics are duplicating these swaps at home with a buddy in a long weekend. That's really about NOTHING for labor, Ryan here at Good-Win Racing keeps a careful spreadsheet of hours in the HyperMiata Project, and that project is at about 2500 hours. That makes a budget 2.5 NC an astounding bang for the buck machine that scores very high on the fun/speed meter. Once again, Miata is always the answer!