Useful forum posts / threads
89-05 Miata electrical connectors
Miata NVH noise vibration harshness abatement
Mazda Miata BP (1.8) engine building ideas
Mazda Miata BP (1.8) engine bolt ons
Mazda Miata DIY intake recipe
How wide a wheel should I get?

Our favorite shops for other race relates services

http://www.tcdesignfab.com/ 
Race Prep - Custom fabrication  - Cages, roll bars -Bay Area

http://hiros-auto.com/
Miata specialist in Costa Mesa

http://local.yahoo.com/info-20484636-west-end-alignment-gardena
West End Alignment
Street and race car alignment, corner weighting and general suspension set up

Blackbird Fabworx
Custom fabrication - Cages- roll  bars - San Fernando Valley

Caculators

Miata gearing spreadsheet

Conversion spreadsheet  Useful conversions 

Car Performance Calculator 

NASA ST/SU Classifier Tool (Courtesy of Ken Brewer)

NASA FoilSim  - simulate different wing shapes, lift, drag coefficients

Specifications

Mazda BP5A-12-420 MSM cam specs