REspeed Blog

This is where we share our knowledge / experience and to let you see the work we do.

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MazdaDoug

MazdaDoug

Avid SCCA race car driver, engine builder, Mazda enthusiast.

Recent Posts

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Rx8 engine rebuilds | Why these cars still matter

RX-8 Rotary Engine Rebuilds: OEM Performance or Better As the cost of everything continues to rise, deciding what to do with a tired RX-8 has become a real choice. Do you invest in rebuilding the ...
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20-Year Sleeping 12A: Bringing a 1971 Rotary-Powered T-bird Back to Life

Rebuilding a First-Generation Mazda Rotary Engine The Mazda rotary engine has been around since the late 1960s, and a few of those early engines are still out there powering cars that mean a great ...
Picture of MazdaDoug MazdaDoug 9 Min Read
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7 Lessons Learned Installing Rotary Engines into the FD RX-7

At REspeed, we've installed enough FD RX-7 engines to know that success rarely comes from force. It comes from preparation, sequencing, and understanding the details unique to the chassis. While the ...
Picture of MazdaDoug MazdaDoug 9 Min Read
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Rx7 12A Engine REbuilds for Vintage Racing

RX-7 Vintage Racing Engine Rebuilds | Built for Reliability Under Race Conditions Vintage racing an RX-7 is not the same as restoring a street car.
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Rebuilding RX8 engine | More than just the block, here's what & why

Why the RX-8 Isn’t “Just an Engine Rebuild” And Why Supporting Components Matter Just as Much The Common Assumption | “I just need the engine rebuilt.” Most RX-8 owners come in thinking: On the ...
Picture of MazdaDoug MazdaDoug 9 Min Read
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Rotary Engine Rebuilds: Why Ultrasonic cleaning is Non-Negotiable

Rotary Engine Rebuilds: Do it right, do it once In any rotary engine rebuild, cleanliness is not optional—it is foundational. Carbon, oil residue, and embedded contaminants left behind during ...
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Rx7 Performance Upgrades | Oil cooling basics

Cooling System Upgrades | Mazda RX-7 Turbo Our latest turbo convertible build is getting dual Setrab oil coolers with fan packs, along with airflow refinement to the radiator.
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FD RX-7 Rebuilds, making solid, reliable drivers

FD RX-7 (13B-REW) Rebuild: What Actually Determines Reliability and Power Most FD rebuilds fail for one reason: They’re treated like a parts replacement—not a system restoration.The Mazda RX-7 FD ...
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Rotary Engine Rebuild: What a Reputable Shop Should Measure, Document, and Guarantee

Rotary Engine Rebuilds: Why Most “Fixes” Turn Into Full Builds (And What a Proper Shop Actually Does) If you’re researching a rebuild for a Mazda RX-8 or Mazda RX-7, the starting point is usually ...
Picture of MazdaDoug MazdaDoug 7 Min Read
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Mazda Rx8 Cooling system upgrades, things to look out for

Mazda Rotary Cooling | Power, Reliability, and Why Temperature Matters The Mazda rotary engine makes its best power when temperatures are controlled. Target range: 180–195°F (oil and coolant). Go ...
Picture of MazdaDoug MazdaDoug 6 Min Read
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