Models · Mazda
Mazda RX-7 FD buying guide
The third-generation RX-7, built from 1992 to 2002 with the 1.3 twin-rotor 13B-REW and sequential twin turbos. UK cars were sold in one specification, and many later Japanese cars have been imported. A well-maintained engine can last, and its condition is the main thing to establish.
The versions
- 1.3 twin-rotor 13B-REW with sequential twin turbos, 237bhp at 6,500rpm in UK cars
- Two-door coupé, rear-wheel drive, five-speed manual
- UK cars have rear storage compartments in place of the Japanese cars' rear bench
- Later Japanese-market Series 8 cars: Type RB, RS and RZ, with up to 276hp, and the Spirit R run-out
What to check on a FD RX-7
3 model-specific things to look at when you view one. They're a starting point, not the full inspection.
A rotary compression test
What to look for: Ask for a recent compression test done with rotary-specific equipment, with the readings for each chamber. If there isn't one, have one done before buying. Also ask whether the engine has been rebuilt, when and by whom.
Why it matters: Readings close to or slightly above 100psi are ideal, with no more than 20psi variation between chambers; below about 80psi the engine is failing, usually from worn apex or side seals. Most engines have been rebuilt at some point, and a documented rebuild by a known specialist is a good sign.
The second turbo coming in
What to look for: On the drive, with the engine warm, accelerate through the upper rev range in a suitable gear. You should feel a small extra surge at around 4,000 to 4,500rpm as the second turbo takes over. Lift the bonnet and feel the small vacuum hoses: they should be rubbery, not stiff.
Why it matters: The second turbo can fail from heat or from lack of use, for example if an owner never revs past 4,000rpm. The system relies on many vacuum lines that perish in the hot engine bay, and stiff lines need replacing. Some cars have been converted to a single turbo.
Water seals: steam, residue and cold starts
What to look for: Watch the exhaust as the engine starts from cold for steam, and note a rough cold start. With the engine cold, look under the water filler neck for a creamy, mayonnaise-like residue. Check underneath for coolant leaks.
Why it matters: The rotary's coolant seals can deteriorate with heat, and these are the signs that they are failing, which means an engine rebuild. Yearly coolant changes help keep the seals healthy, so look for them in the history.
Also in the full guide
- Fourth to fifth gear
- The cold start, test drive and paperwork checks for the exact version you're viewing
The full guide to the FD RX-7
The CrankSight guide walks you round the car on your phone at the viewing, with every check for the exact version you're looking at: what to look for, where to find it, and what anything you find is likely to cost. As you go it builds an assessment of that car, and if you view more than one, it lines them up side by side.
£29 for the model, used on as many cars as you like, delivered within 72 hours or your money back.
General points for the model, last checked October 2026. Every car is different, so treat this as a guide to what to look at, not a verdict on any car. CrankSight is independent and has no connection with Mazda.