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.
Performance filtration specialists Pipercross have provided the perfect breathing solution for all 2008 on WRX and Sti models; their bespoke panel filter.
Designed to fit into the factory airbox as a direct replacement for the OEM paper unit, The Pipercross filter has been designed up to a desired quality, rather than down to a designated price. Flowing over 30% more air than the factory part, this beautifully made filter can make significant improvements in power, torque and driveability and comes with a full lifetime warranty to give decades of faithful service.
The unique multi-layered foam construction not only means a higher rate of flow, it also mean that, compared to even the leading cotton-gauze replacements, Pipercross foam filters can go for up to three times longer before needing any servicing or cleaning. This can be done indefinitely for the life of the filter. Little wonder then, that they are the darling of the JDM market, listing Ralliart, Toms, Spoon, TRD and Nismo as past and present OEM clients.
Priced at just £34.11, it makes the perfect first modification for any Subaru, and flows stronger.. for longer!
For more details on the 3,000 vehicles covered by the Pipercross range, please visit www.pipercross.com, www.maxxdirectory.co.uk or call the team on 01604 707750.
Subaru tuning supremos PowerStation have been busy honing their suspension range for the latest Impreza models. The new 2009 AST line up offers a beautifully engineered solution for every model of the new car, offering a balance between capability, comfort – and cost!
The AST Sportline range is a traditional coil-over type unit that incorporates ride height and damper force adjustment. Although manufactured in the same factory as their race ranges, the Sportline weighs in at a fraction of the cost, making it a superb choice for the fast road or track driver that wants ultimate control, tempered by comfort and reliability. Damper rates have been carefully matched to spring rates to give a sublime package.
A 12-point adjustable damper can be quickly set by the driver, via a single knob to allow for different ambient conditions, road types or driving styles. Bump and rebound are adjusted together in one movement to allow for instant fine tuning.
The units are monotube, and are nitrogen filled to eliminate the problems of aeration found in cheaper non-gas units. Prices start at just £1195 for the ‘08 cars. PowerStation also offer a huge range of units for the older cars, going right back to 94 model year.
For those looking to spend more time on the track, the Raceline range should need no introduction. As the suspension that took PowerStation to the overall victory in the 2006 Time Attack Championships, the Raceline range boasts an impressive list of features. Each unit is height adjustable and has 3-way damper adjustment, allowing changes to both and low and high speed compression and rebound characteristics. The compression circuits are located on an externally mounted reservoir, which allows an increased level of oil capacity and higher internal nitrogen pressures to eliminate aerating. Each damper has 12 positions allowing for infinite fine tuning to tweak pitch, dive, roll balance and to allow for all weather conditions at the circuit.
With AST’s high quality top-mounts as standard, it’s no surprise that AST Raceline Dampers are the choice of many of Europe’s top race teams – and with great success. Prices start at just £3750 For the ‘08- models and again go back through the range to cater for most early models.