MTEC Brakes BMW 330 Challenge Series
A one-make series for the E46 BMW 330ci, with standardised parts to allow great value, 240bhp+ RWD racing. Donor cars cost as little as £1000 and with just £2715 of mandatory parts (plus safety gear), eligible cars can be DiY built from as little as £6000.
Standard BMW E46 330ci 'M54B30' straight-six. Power is capped (at the flywheel on a MAHA dyno), with scrutineering spot checks to ensure compliance and prevent undue costs.
330 Challenge-spec GAZ Shocks inverted monotube coilovers.
Standard BMW 330ci calipers and discs, pad choice is free.
Standard BMW 5-speed manual transmission, optional Quaife ATB limited-slip differential.
Any MSA List 1A, 1B or 1C tyre for 2017, in choice of 235/45/17 or 225/45/17 sizes.
Some external modifications are permitted, and interior lightening is permitted to achieve the 1300kg minimim weight with driver, post-race.
The 330 Challenge will have 14 rounds in 2018 run across seven double-header weekends, including the prestigious Brands Hatch 'Deutsche Fest' weekend.
Club membership is just £25 for 12 months, season registration is £85, and double-header weekend entry fees (qualifying and 2 x 20min races) are typically between £275 and £375 depending on the circuit. Regulation compliant cars can be built from just £6000.