Spec E30

Spec E30 is a class of racing cars used in National [Auto Sport Association] road racing events.

Concept

The goal for Spec E30 is to create high levels of competition among similarly prepared BMW E30 3 Series cars at a reasonable cost. It is intended to encourage low-cost, entry-level, production car based competition. It has been called "the next big thing" in club-level racing by Grassroots [Motorsports magazine|Grassroots Motorsports Magazine].

Cars

The series consists of U.S.-spec BMW E30 325i coupes and sedans, sold between 1984 and 1991. All cars in the series must use the BMW M20B25 engine.
As a "specified" class, the rules allow for a limited number of modifications, predominantly involving required suspension parts.
Required components include:

M20B25
Getrag 260 5-speed transmission
3.73 Rear differential final drive ratio
Stock/unmodified ECU
A choice of either H&R Race spring set or Ground Control coilover kit
Bilstein Sport shocks
Spec series tire
Minimum weight with driver at the end of the race is 2700 pounds

Allowed modifications include rebuilding of the original BMW motor, but it must follow factory specifications. And even then, there is now a reward weight system that is used based on the actual output from a sanctioned dynamometer. As well, a model dyno plot is used to compare all competitors engine output for distinct anomalies.

Series Winners

National Championship[http://mylaps.com/results/newResults.jsp?id=416882 MyLaps.com || powered by AMB transponders]

Regional Championships

2018 Great Lakes: 1st Cliff Pearce, 2nd Eric Pennington, 3rd Fante Meng
2017 Northern California: Sylas Montgomery
2006 Mid Atlantic: Chris Cobetto
2005 Mid Atlantic: Carter Hunt