Demon Tweeks | Yokohama Locost Championship
The Demon Tweeks | Yokohama Locost Championship offers some of the closest racing in UK motorsport, often with capacity grids. The extremely affordable cars are built to the design set out in Ron Champion’s book 'Build Your Own Sports Car' (ISBN 1-85960-636-9).
Ford Xflow 1300; modifications are limited to a + 0.090” rebore and basic ‘blue-printing’. Induction is the 1300GT carburettor or similar, but exhaust is free.
Modifications are limited to choice of spring-rates, single-adjustable dampers and free choice of anti-roll bars.
Front is standard non-ventilated discs and caliper, rear is standard drums, both from Cortina, Escort or Capri; choice of friction material is free.
4-speed Escort or 4/5-speed Sierra Type 9 gearbox; standard ratios. Final drive ratio is free; no LSD or similar.
The only permitted tyre is the Yokohama A539 in 185/60/13.
There are 16 rounds in the 2017 season spread across seven 'double-header' race weekends, of which the best 14 count for the championship.