JDM Build Guides

What Is the 13B-REW? The Mazda Rotary Engine Explained

What Is the 13B-REW? The Mazda Rotary Engine Ex...

What is the 13B-REW? Everything you need to know about the twin-turbocharged Wankel rotary engine that powered the FD3S RX-7 — how it works, what makes it special, and what...

What Is the 13B-REW? The Mazda Rotary Engine Ex...

What is the 13B-REW? Everything you need to know about the twin-turbocharged Wankel rotary engine that powered the FD3S RX-7 — how it works, what makes it special, and what...

SR20DET vs KA24DE: Which Engine for Your 240SX Build?

SR20DET vs KA24DE: Which Engine for Your 240SX ...

The definitive 240SX engine debate: SR20DET swap vs built KA24DE. We break down power potential, swap cost, parts availability, and which engine wins for drift, time attack, and street builds.

SR20DET vs KA24DE: Which Engine for Your 240SX ...

The definitive 240SX engine debate: SR20DET swap vs built KA24DE. We break down power potential, swap cost, parts availability, and which engine wins for drift, time attack, and street builds.

Best Single Turbo Kits for the MK4 Supra (2JZ-GTE)

Best Single Turbo Kits for the MK4 Supra (2JZ-GTE)

The complete buyer's guide to single turbo kits for the MK4 Toyota Supra 2JZ-GTE — comparing frame sizes, manifold types, IWG vs EWG, and top kit options from Turblown, BorgWarner,...

Best Single Turbo Kits for the MK4 Supra (2JZ-GTE)

The complete buyer's guide to single turbo kits for the MK4 Toyota Supra 2JZ-GTE — comparing frame sizes, manifold types, IWG vs EWG, and top kit options from Turblown, BorgWarner,...

FD RX7 13B-REW Engine Parts: Everything You Need for a Reliable Build

FD RX7 13B-REW Engine Parts: Everything You Nee...

The complete guide to building a reliable FD3S RX-7 on the 13B-REW — covering engine internals, fueling, single-turbo selection, ignition, ECU, and RaceOnly billet upgrades. J-Spec Garage is the only...

FD RX7 13B-REW Engine Parts: Everything You Nee...

The complete guide to building a reliable FD3S RX-7 on the 13B-REW — covering engine internals, fueling, single-turbo selection, ignition, ECU, and RaceOnly billet upgrades. J-Spec Garage is the only...

The Complete 2JZ-GTE Build Guide: Parts, Turbos & Power Goals

The Complete 2JZ-GTE Build Guide: Parts, Turbos...

The 2JZ-GTE is the gold standard for JDM engine builds — not because of hype, but because of what is actually inside: a closed-deck iron block, factory-forged internals, and a...

The Complete 2JZ-GTE Build Guide: Parts, Turbos...

The 2JZ-GTE is the gold standard for JDM engine builds — not because of hype, but because of what is actually inside: a closed-deck iron block, factory-forged internals, and a...

RaceOnly Parts in the USA: J-Spec Garage Is Your Only Source

RaceOnly Parts in the USA: J-Spec Garage Is You...

J-Spec Garage is the only authorized US distributor of RaceOnly precision billet CNC rotary engine parts. Find RaceOnly 13B-REW components, intake manifolds, fuel rails, and more — in stock, ships...

RaceOnly Parts in the USA: J-Spec Garage Is You...

J-Spec Garage is the only authorized US distributor of RaceOnly precision billet CNC rotary engine parts. Find RaceOnly 13B-REW components, intake manifolds, fuel rails, and more — in stock, ships...