L25–RAIJIN (雷神) • Extreme Turbo • 450–500+ hp
Fully-forged bottom end with a large-frame top-mount — maximum output, built responsibly.
The thunder build: serviceable V-band layout, high-flow fueling & cooling, and calibration that keeps power repeatable.
Quick Specs
Bottom End
Fully forged (pistons & rods)
Fully forged (pistons & rods)
Turbo Frame
Large • V-band top-mount
Large • V-band top-mount
Output (dyno)
450–500+ hp • 550–650 Nm
450–500+ hp • 550–650 Nm
Calibration
Extreme turbo map • staged protections
Extreme turbo map • staged protections
Thermal Margin
Spec’d for sustained heat: intercooler core sizing, radiator + oil cooling, turbo blanket & shielding as standard.
Data-Backed Limits
Knock/EGT monitoring and torque management tuned for repeatability on track and durability on the street.
Hardware Layout
- Shared DMS top-mount V-band architecture for clean bay & easy service
- Large-frame turbo with proper A/R for top-end flow
- High-flow injectors & pump; ethanol-ready options
- Front-mount intercooler (high-flow), 3.0” exhaust path
- ECU: boost-by-gear • temp/pressure safeties • driveline care
Chassis & Suspension
- Aim: maximum output with control — time-attack capable.
- Monotube coilovers; remote reservoirs optional
- Rates: ~9–11 kg/mm F • ~6–7 kg/mm R
- Heavy-duty adjustable ARBs and key bushings
Brakes & Wheels/Tires
- BBK or endurance package • race pads • braided lines • high-temp fluid
- 17×9 • 235/40–245/40-17 • 200TW or semi-slick
- Brake/diff/gearbox cooling provisions as needed
Safety & Structure
- Club multi-point cage strongly recommended
- FIA bucket with 6-point harness • HANS ready
- Fire system provisions • comprehensive heat shielding
Alignment (Attack)
- Front: −2.6°…−3.2° camber • 7–8° caster • 0 to slight toe-out
- Rear: −2.0° (±0.2) camber • slight toe-in
Build Idea
Fully forged bottom end with a large-frame turbo, cooling and fueling scaled to target. Calibration prioritizes longevity and repeatable laps under heat.