Spec E30 is a class of racing cars used in

National Auto Sport Association The National Auto Sport Association (NASA) is an American motorsports organization promoting road racing and high-performance driver education. Founded in 1991, NASA hosts High Performance Driving Events (HPDE), automotive rallies, Time Trial ...

(NASA)

road racing Road racing is a form of motorsport racing held on a paved road surface. The races can be held either on a closed circuit or on a street circuit utilizing temporarily closed public roads. Originally, road races were held almost entirely on publ ...

events.

Concept

The goal for Spec E30 is to create high levels of competition among similarly prepared

BMW E30 The BMW E30 is the second generation of BMW 3 Series, which was produced from 1982 to 1994 and replaced the E21 3 Series. The model range included 2-door coupe and convertible body styles, as well as being the first 3 Series to be produced in 4-d ...

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'' (GRM) is an American print and digital periodical devoted to hardcore sports cars, driving skill improvement, technical advice, and amateur motorsports such as road racing, autocross and rallying. It was established i ...

''.

Cars

The series consists of U.S.-spec BMW E30 325i coupes and sedans, sold between 1987 and 1991. All cars in the series use the BMW M20B25 engine. Convertibles built to series specs and with log books issued prior to November 1, 2011 are still allowed to compete, but this model has been sunsetted out of the series. 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 * H&R Race spring set * Bilstein Sport shocks * Spec series tire (which is currently the Toyo RR or RA1 in 205/50/15 size) * 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 (maximum class allowed is 162.9). As well, a model dyno plot is used to compare all competitors engine output for distinct anomalies.

Series Winners

National

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Regional

* 2017 Northern California: Sylas Montgomery * 2006 Mid Atlantic: Chris Cobetto * 2005 Mid Atlantic: Carter Hunt

External links

Official SiteSpec E30 rules (PDF)''Grassroots Motorsports'' Spec E30 project car

References

BMW Touring car racing series One-make series {{Motorsport-stub