Black and red Mazda RX-7 FD3S

The FD3S expert inside
your AI assistant.

Give Claude, ChatGPT, and any other AI assistant a real FD3S-focused research tool for the Mazda RX-7. Service procedures, tuning guidance, and practical technical answers — not a generic guess.

How it works

Connect once, then ask anything — we do all of the research.

1

Connect

Add rx7db as an MCP server in Claude Code or any MCP client using your own Anthropic API key.

2

Ask

Describe your symptom, tuning question, build goal, or part you need — in plain language, with your car's mods if you like.

3

Get grounded answers

An internal research agent investigates the question and returns a clear answer, with relevant diagrams when they help.

Multiple tools, one focused assistant

Focused help for maintaining, diagnosing, modifying, and understanding the RX-7 FD3S.

troubleshoot

Diagnose a symptom or malfunction and walk through the fix.

cooling

Overheating, temperature swings, and coolant loss — diagnosed before the engine pays for it.

wiring

Trace circuits, pinouts, and wire colors — with the actual diagram images.

vacuum

Trace the vacuum "rat's nest", test solenoids and actuators, diagnose the sequential turbos — with routing diagrams.

job_planner

Parts, tools, torques, and service procedures for a job you're about to do.

tune

AFR targets, timing, ECU settings, and tuning symptoms.

turbo_sizing

Airflow and WHP math for turbo and boost combinations.

build_planner

Plan a modification sequence toward a target power level.

wheel_fitment

Check wheel offsets, tire sizes, and suspension, fender, and brake clearance.

find_parts

Locate OEM or aftermarket parts, with live stock lookups.

ask

Anything else — specifications, maintenance, and how systems work.

Real diagrams, not descriptions

When a wiring answer needs a diagram, you get the relevant diagram image.

"My fuel pump isn't priming — where's the FPR relay in the harness?"

The wiring tool traces the circuit through the relevant diagram and returns the page you need, so you can follow the real harness instead of a text-only description.

Wiring diagram excerpt