Current TOTB and Time Attack Champions Roger Clark Motorsport have released yet another one of their own superb trophy winning tricks into the market place; their parallel fuel rail kit.
On the standard Subaru engine, fuel is delivered is a ‘series’ style circuit, feeding first one bank of cylinders before stretching around the block to deliver to the remaining two. In high performance applications, this somewhat simplistic design can see unequal pressures and delivery on either side of the engine, resulting in dire consequences for the ‘last’ cylinder in the sequence.
The RCM solution is a direct adaptation of the units designed and tested by the team on the hugely successful ‘Gobstopper’ race car. The fuel arrives from a central line, before being precisely split into two parallel feeds which then service each cylinder bank. The result is perfectly equal pressures feeding each injector.
The kit consists of two beautifully extruded rails, four dash 6 stainless steel ends, complete with ‘o’ ring, fitting brackets. In testing, the kit has been happy to keep up with the prodigious thirst of RCM’s own 890 bhp test cars, so whatever flat-four trickery you’re planning under the bonnet, it’s safe to say that this kit can cope.
Priced at £425 + VAT you’d be fuellish not to.. Fits all 2001 on engines, both 2.0 and 2.5 litre.
For more details on the team or the magic they can perform on any Subaru, please visit www.rogerclarkmotorsport.co.uk or call them on 01455 828610.