Close-up look at the Proton Satria Neo S2000 rally car

25 May 2015 | Author: | Comments Off on Close-up look at the Proton Satria Neo S2000 rally car
Proton Satria

Close-up look at the Proton Satria Neo S2000 rally car

Proton Satria Neo Super 2000 rally car caused quite a stir on the first WRC event earlier this year, Rally Ireland, when it stormed into a podium position on day one

May 5, 2009 With the World Rally Championship (WRC) switching over to S2000-based cars next year, we thought it may be a good time to have a closer look at what has proved to be the fastest S2000 rally car so far, the Mellors Elliott Motorsport (MEM) build Proton Satria Neo Super 2000. In the hands of Irish driver Niall McShea, the Proton caused quite a stir on the first WRC event earlier this year, Rally Ireland, when it stormed into a podium position on day one, ahead of a full field of WRC machinery.

Super 2000 is an international motor racing industry (FIA) vehicle category for both touring and rally cars that have had at least 2500 produced in the past year. The specification is limited to 2.0 liter – normally aspirated – engines, with a maximum of 8,500 rpm. There are slightly different regulations for touring cars and rally cars with four wheel drive being allowed in rally cars, with a control specification 6-speed sequential gearbox that can be supplied by one of three companies.

While S2000 cars, such as the MG S2000, have been contesting national rally championships since 2007, any normally aspirated 2.0 liter able to beat turbocharged world rally cars with the world’s best drivers behind the wheel is quite impressive. Most Proton road cars are thinly disguised Mitsubishis – but with Tommi Mäkinen having dominated the Group A rally era, winning the World Rally driver’s title four years in a row at the wheel of a Mitsubishi Lancer, perhaps the performance of the Proton S2000 isn’t so surprising.

The new Proton Satria Neo Super 2000 rally car starts off as a bare chassis delivered to the MEM workshop. Here, 35 meters of lightweight Chrome Moly tubing is TIG-welded (tungsten inert gas) in to form a roll cage, which doubles as a crew safety cell, and also provide vastly improved torsional bodyshell stiffness. Driver and co-driver seat position mounts are welded to the floor and are fixed at the rearmost mounting points to maximize the car’s weight distribution.

The pedal box and steering column are both adjustable to suit different pilots. The base Satria design allows for the smallest frontal area and lowest roof height in the class.

As the Satria road car is front wheel drive and the rally car is four wheel drive, a new much larger transmission tunnel is needed. The new tunnel is made extra large where it joins the front firewall to allow the exhaust headers a straight run off the cylinder head.

No standard components are retained in the suspension, as all cross members and lower control arms are fabricated from TIG-welded Chrome Moly tubing. MEM’s engineers have designed the suspension with a relatively conventional layout of wishbone and MacPherson strut bar, with travel maximized to the extent that the bump stops are the only part that prevents the body sills hitting the ground on full bump travel.

This translates into both an ultra-low tarmac set-up, with go-kart levels of body roll and a long-travel gravel set-up, which enables the car to soak up the biggest bumps. With various anti-roll bars available for both front and rear, the suspension set-up can be easily fine-tuned for any rally surface or type.

Brakes are 4-piston Alcon forged calipers, front and rear, with 300-mm vented discs all round for gravel, and 350-mm front discs used on tarmac. The 18”x 8” wheels are used for tarmac while 15”x 6.5” alloys are used for gravel.

The 2.0-liter Proton Super 2000 engine is based on the 1.8-litre engine fitted to Proton’s Waja model, and it has been developed by MEM’s engineers to produce a reliable 278 bhp@7600rpm, with a usable power band from 5,500 to 8,500rpm. The 6-speed sequential 4WD Super 2000 transmission is the 532 version, supplied by Xtrac. The fuel system features a quick-change fuel control cassette (which includes all the fuel pumps, filters and valves), attached to the MEM-designed FIA FT3 safety fuel cell to aid rapid maintenance in the event of a fuel system failure.

The latest technology is used in the electrical systems with a state-of-the-art multiplexed wiring system capable of managing the entire car’s electronics from a central unit ideally placed in the center of the car, in-between the driver and co-driver. Apart from the weight-saving reduction that this achieves, it is simple to operate and, with automatically resetting circuit breakers, this is technology and reliability at its best.

Car specs

Can be configured for right-hand or left-hand drive

Front bumper designed to maximize aerodynamics and cooling

Small frontal area

Modified front and rear wings to maximize width

Lightweight rear spoiler for minimum drag

Lightweight FIA-approved Chrome Moly roll cage space frame chassis

Four-cylinder MEM-Proton 2000cc S2000 engine

Forged pistons

Lightweight steel con-rods

Billet steel crankshaft

Lightweight steel flywheel

278bhp@7600rpm

GEMS X25 ECU

Integrated data-logging and color dashboard display

Xtrac 532 4WD Super 2000 transmission

6-speed sequential gearbox with engine cut on up-shift

Limited slip differential

Front diff: plated mechanical, externally adjustable

Center diff: spool

Rear diff: plated mechanical, externally adjustable

Hydraulic handbrake with auto-release system for rear differential

Bespoke WRC-style lightweight driveshafts all round

Tubular fabricated front and rear crossmembers

Front: lower wishbone and MacPherson strut

Rear: lower wishbone and MacPherson strut

MEM-Dynamics dampers all round

Anti-rollbars front and rear, optional sizes available

One-piece alloy hubs, interchangeable front to rear

Proton Satria

Front: Alcon 4-piston forged calipers, 350mm vented discs, (tarmac)

Front: Alcon 4-piston forged calipers, 300mm vented discs, (gravel)

Rear: Alcon 4-piston forged calipers, 300mm vented discs, (common)

MEM pedal box assy, adjustable for driver position

Hydraulic power-assisted rack and pinion

Adjustable steering column reach and height

Quick-release steering wheel

GEMS Multiplex wiring and power management system, including auto-power reset

Central multi-function key pad control and integrated data-logging

Information by color TV screen dashboard display

72-liter AFS FT3 safety fuel cell with quick-change fuel control cassette

FIA Staubli dry-break fill and vent connections

18”x8” alloy for tarmac

15”x6.5” alloy for gravel

Length 3905mm

Width 1800mm

Height 1300mm

Wheelbase 2440mm

Front track 1543mm

Rear track 1543mm

Weight 1150kg (tarmac), 1200kg (gravel)

Proton Satria
Proton Satria
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