Toyota Altezza RS200 (SXE10) - Super Sedan

With most D1 cars pushing out well over 500-550 hp, HKS knew that they had to step the game up with the new build of the 3S-GTE powering the IS220-Z. Back in the day this engine was producing around 450-480 hp, but now it’s a healthier 560 hp. This has been accomplished through a more hard-core tune, which begins with a special HKS 2.2L stroker kit made up of 87mm forged pistons, H-section connecting rods, and a billet crankshaft (90mm stroke) pushes capacity to 2,150 cc. Thanks to the HKS metal gasket a high 9.5:1 compression ratio is created allowing the engine to be far more responsive. Vcam Pro camshafts along with a Valcon controller take care of optimizing the lower end torque as well as maximizing high-end power. Sitting on the custom HKS manifold is the externally gated HKS GT3037S turbine, which passes spent gasses to the custom straight exhaust system. Perfectly representing just how big HKS’ budget is for these kind of projects is the dry-carbon intake pipe, which curves under the custom intercooler piping to suck in air from deep inside the passenger corner of the bumper. A custom-built intercooler using an HKS S-type core has been positioned to receive optimal airflow from the bumper and send the compressed and cooled charge onto the stock Toyota intake plenum. Here it meets with the fuel sprayed into the cylinders by the 850cc/min injectors, which in turn are fed by the twin Bosh Motorsport fuel pumps in the trunk. Keeping the engine cool is a pair of oil coolers, which has been positioned under the car. This is done to avoid problems when the IS is involved in smaller impacts, saving the all-important coolers usually located on the corners of the bumper. This is why both side intakes on the bumper are sealed. A TRD radiator and air-separator tank takes care of engine cooling. As mentioned HKS has fitted their SR six-speed sequential transmission, usually used on S15 Silvias. This has been adapted to fit the 3S and is joined by an HKS GD Pro clutch and a TRD LSD.

On the suspension side of things HKS fitted specially setup and valved Hipermax D dampers and springs, which take advantage of the revised suspension geometry. Thicker antiroll bars are run front and back to keep the car nice and flat when drifting. Apart from extended steering knuckles the only other modification to the suspension links is a front lower arm spacer, which pushes the arm out further front to allow for more controlled steering. On the braking front Endless have been called into the project and supplied a set of six-pot front calipers and two-piece slotted front discs. At the rear, the stock non-ventilated disc remains along with the factory caliper but is joined by a second caliper for the side brake. This, as can be seen in the engine bay, has required the use of a second master cylinder. Endless Euro X pads are used at each corner.

It was great to see HKS and Nob taking an interest in D1-GP. We hope their interest develops further and can see them competing full time in the near future.

Behind the Build

Name.
HKS

Age.
38

Location. Shizuoka, Japan

Occupation.
High Performance Machines

Hobbies.
Racing, drifting

Motivation.
Total domination

Feedback.
www.hks-power.co.jp

Toyota Altezza RS200 (SXE10)

Output: Max Power: 560 hp, Max Boost: 1.6 x 100 kPa, Weight: 1,100 kg

Engine 3S-GTE BEAMS engine; HKS 2.2L stroker kit, metal head gasket, Valcon + Vcam kit Pro camshafts, Valcon Pro valve timing controller, custom stainless steel exhaust manifold, GT3037S turbo, wastegate, custom downpipe, custom exhaust system, one-off carbon intake pipe, custom intercooler piping kit, custom intercooler using S-type core with intercooler spray system (tank in trunk), custom twin-core oil coolers under car with fans, and F-Con V Pro engine management; TRD radiator with air-separator tank; Custom carbon radiator shrouding; racing fuel cell custom fitted in trunk with one-off top feed filler; Bosh Motorsport racing fuel pumps; braided fuel lines

Drivetrain HKS GD clutch, six-speed SR sequential gearbox; TRD LSD

Suspension HKS Hipermax D custom setup adjustable dampers; custom-built and repositioned front and rear damper mounting points; front lower arm spacer; custom antiroll bars

Wheels/Tires Yokohama Advan RS 17x9 +22 (front), 18x9 +25 (rear), Yokohama Advan Neova AD-07 235/40/17 (front), 265/35/18 (rear)

Brakes Endless six-pot front calipers, two-piece slotted rotors, and Euro X pads; custom second rear e-brake setup; HKS F-706 brake fluid

Exterior Special one-off HKS D1 project body kit, custom carbon doors and panels; Varis carbon hood; custom LED rear lights; custom side mirrors; polycarbonate windows

Interior Completely stripped and spot-welded chassis; welded-in and braced rollcage plus additional stiffening; modified transmission tunnel and floor; air jack system; carbon dashboard; flip-up steering column for easy access; Eclipse LCD display for CAMP; HKS EVC5 boost controller; AFK knock amp; V-Cam controller; Circuit Attack Counter; DB-RS oil pressure and oil temperature gauges; Bride carbon-Kevlar racing bucket seats; Willans racing harnesses; Nardi steering wheel; custom levers for gearbox and side brake