Tuning & Builds
JDM engine builds, dyno results, ECU tuning, power mods, and complete build showcases
ECU Tuning for JDM Cars: Standalone vs Piggyback
A guide to ECU tuning options for JDM cars comparing piggyback controllers to standalone engine management. Covers Haltech, Link, HKS, and more.
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.
Manual Transmission Rebuilding Basics for JDM Cars
Aging JDM transmissions need attention. Learn to diagnose issues, understand the rebuild process, and choose upgrade options for your gearbox.
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.
Forced Induction 101: Turbo vs Supercharger for JDM Builds
A detailed comparison of turbocharging vs supercharging for JDM builds. Covers how each works, advantages, platform considerations, and costs.
How to Build a JDM Project Car on a Budget: Complete Guide
Disclosure: This article contains affiliate links. Project JDM may earn a commission if you purchase through our links, at no extra cost to you. Our recommendations are based on community experience and independent resea
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.