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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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 ...
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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 ...
Picture of MazdaDoug MazdaDoug 5 Min Read
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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 ...
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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 ...
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79-80 Mazda Rx7 Performance Updates

1979 Mazda RX-7 SA | Maintenance & Thoughtful Upgrades This is one of those cars.
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Rotary Engine Builds | Do it right

Rotary Engine Builds | From Street to Wild—Built Right Spring is here in Colorado, and projects are already lining up.
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12A Rotary Rebuild for Vintage Racing | RX-7 Engine Builder Colorado

Rebuilding the 12A for Vintage Racing: What Actually Matters Go to any SCCA road racing event and you’ll still see Mazda RX-7 cars running hard down the straights with 12A engines. That alone tells ...
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Mazda 12A Rotary Builds | Experience, Details Matter

12A Rotary Engine Builds | Having grown up around the 12A and doing what young men do with their cars, then turning to road racing as I got older, the proof of the 12A is undeniable. I have beat the ...
Picture of MazdaDoug MazdaDoug 6 Min Read
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