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Spec E30
Class of racing cars From Wikipedia, the free encyclopedia
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Spec E30 is a class of racing cars used in National Auto Sport Association (NASA) 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.[1] It has been called "the next big thing" in club-level racing by 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 (which is currently the Maxxis Victra RC-1 or VR-1 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.[2]
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Series Winners
National Championship[3][4][5][6] [7]
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
External links
References
Wikiwand - on
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