Subaru STI 2006-2007 2500cc STEP3 480cv

Subaru STI 2500 cc model 2006

The changes have inteerested almost every part of the car starting with the internal organs such as the engine pistons and connecting rods (which in the model 2006 are unfortunately of poor quality), so they were replaced with Mahle pistons and connecting rods crow. The original clearences were maintained to give longevity to the engine, were also replaced the intake manifolds with the original 4 butterflyes integreed, no more appropriate to the new power of the engine. Also for the 850cc injectors now it was necessary to adjust the fuel rail with a greater flow one together with the pressure regulator.

The original turbocharger was sobstituted with an APS SR55 (whose flow is twice the original) and coupled with an equal-length exhaust manifold and a complete exhaust of mm76 always aps Noise catalysed with a very low (98 decibels). Even the intake was revolutionized and was fitted with a kit. APS and a direct suction from the meter plus up to the turbine. Were also replaced the 3 pulleys service with a benefit of weight (kg.2200 against 600 grams) and a reduction of the diameters. About weights, with new pistons and connecting rods were removed 250 grams from crank.

The original clutch was abandoned and in its place and installed a bi kit.AVS carbon disc capable of handling power of 700
hp and starts with fulminant limiter at 7000 rpm.

To cool the air from the turbo sr55 was installed under the original bumper an intercooler aps.

1. In the end with the ECUTEK software we remapped the ECU while maintaining a peak pressure of 1.60 and a constant of 1.35 (for the presence of the catalyst), in this configuration we have a power of 480 hp and a torque of 63 kg.

The original shock absorbers were replaced with 4 adjustable Tein-FLEX the car was lowered of 9cm ,if desired there is a chance 'to add 4 stepper motors on the absorbers and a display inside the car to handle more confortable the brake handle of the shock .

Were added 4-frame gt spec in key parts of the chassis and coupled two bars ant domes. and post.

The discs were replaced with Brembo gold and aero tubes and even if the pads have not been replaced (for now) the braking is very good.

Subaru STI 2200cc 630hp

Subaru-wrx-sti-2004 2200cc stroker kit 

Replacement turbocharger garret-gt-35 (formidable turbine) exhaust waste gate 76 millteck external fuel pomp, filter under fender rail, JE pistons made up ns.specifiche tree forged camshafts, machining heads, reinforcing plate pump benz plus ECU hydra, lanc bang, double bit

horses obtained with the first map to 2 bar boost 561 hp

The graph shows the power of the second map with a 2.5 bar boost pressure 631cv

Couple obtained always with the boost pressure bar 2.5 80.3 kg

Subaru-wrx-sti-2006 step-DR2

Subaru-wrx-sti-2006 step-DR2

Replacing exhaust turbocharger with kit.APS external waste gate Greddy 76, fuel pomp, filter under fender rail, JE pistons made up ns.specifiche forged shaft, treated, polished, oversized oil pump, treatment isotropic crankshaft, cylinder heads with cams spec-c , plate steel reinforcement between block and oil pan, dual neurice pompa.ecu hydra, lanc bang, double bit pressure 1.95

Darton rods, Cosworth Cams, intake manifold plus

Subaru-wrx-sti-2006 step-DR3

Subaru-wrx-sti-2006 step-DR3

Replacing kit.APS exhaust turbocharger with waste gate Greddy 76 external fuel pomp, filter in the fender rail, JE pistons made up ns.specifiche forged shaft, treated, polished, oversized oil pump, treatment isotropic crankshaft, cylinder heads with cams spec-c , plate steel reinforcement between block and oil pan, dual neurice pompa.ecu hydra, lanc bang, double bit pressure 1.95

Piatra reinforcement on the original block (clesed-deck), c-spec cams, gold collector

Subaru extreme 4 478cv

The material of this preperazione STEALTH is the following:

• Carrillo forged connecting rods
• Print Supertech Pistons
• 1mm oversized valves
• Cam Riprofilate
• Pistre reinforced closed deck
• Gt35 turbine in its original location
• increased manifolds
• Milltek full exhaust
• 800cc injectors
• Anourisse pump Walbro
• Remapping Ecutek

The result is' given with peak pressures of 1.8 and 1.6 constant
After running the car will be remapped with higher pressures

Extreme 4 SV2 502cv

In evidence the succession of preparations for this car:

• Riviera gold; Green step2; red SV2
• The red graph represents the modified car:
• Kit gt35 turbine mounted in original position
• complete exhaust 76mm
• inacciaio stainless tubular manifolds
• 70mm air intake kit
• Replacing the front intercooler top with a full intake kit + APS APS
• Mapping ecutek 100 octane
• Supertech forged pistons
• Carrillo connecting rods
• Closed on deck reinforcement block

Il grafico mostra la differenza tra la medesima vettura con e senza intercooler frontale