Tuning & Builds
JDM engine builds, dyno results, ECU tuning, power mods, and complete build showcases
JDM Oil Guide: What Weight and Brand for Your Engine
From Motul to Castrol, 5W-30 to 10W-40 — the right oil for popular JDM engines including the RB26, 2JZ, SR20, 4G63, and EJ257.
Sequential Gearbox Guide: Dog Box, Paddle Shift, and Alternatives
Sequential transmissions offer lightning-fast shifts but at a cost. Understanding dog engagement, paddle shift, and when they make sense.
Boost Controllers Compared: Manual vs Electronic for JDM Turbos
Manual boost controllers are simple and cheap. Electronic ones are precise and programmable. Which one is right for your build?
SR20DET: The Perfect Starter Turbo Engine
Lightweight, responsive, and endlessly tuneable. Why the SR20DET remains the go-to engine for budget builds and drift missiles.
JDM Engine Swap Legal Guide: What's Street Legal?
A comprehensive guide to engine swap legality in the US for JDM cars. Covers EPA rules, state emissions, OBD-II challenges, and documentation tips.
Turbo Upgrade Guide for JDM Cars: Choosing the Right Setup
Single turbo, twin turbo, or compound? How to choose the right turbo setup for your power goals, response preferences, and budget.
JDM Parts Sourcing Guide: Where to Buy in the US and Japan
Where to source JDM parts in the US and Japan: trusted importers, Yahoo Japan Auctions, proxy services, recyclers, and how to avoid counterfeit HKS and GReddy parts.
JDM Tuning Guide: Where to Start Modifying Your Import
JDM tuning guide from bolt-ons to full builds: intake, exhaust, ECU tune, coilovers, intercooler, turbo upgrades, and platform-specific power targets for popular JDM cars.
DIY ECU Tuning Comparison: Haltech vs AEM vs Link vs MoTeC - Which System is Right for Your Build?
Complete comparison of DIY ECU tuning systems for JDM builds. Haltech, AEM Infinity, Link G4X, MoTeC, EcuTek, and COBB Accessport compared: features, pricing, ease of use, and which system is best for your project.
JDM Electric Conversions: Ultimate Guide to Converting Classic Japanese Cars to Electric
Electrify your classic JDM car! Complete guide to EV conversions for AE86, S13, RX-7, and more. Costs, kits, performance, legal considerations, and real-world builds.
JDM Engine Swaps 101: Everything Beginners Need to Know
Dreaming of an RB26 swap or a 2JZ in your 240SX? This beginner-friendly guide covers planning, legal considerations, and the most popular swap combinations.