Mazda 13B MSP Renesis Specs

Mazda 13B MSP Renesis engine specs: 80 ci (1.308L), 2-cylinder, 4.1339" bore x 3.1496" stroke, 10:1 compression.

Dimensions

Displacement	80 ci / 1.308 L
Bore	4.1339"
Stroke	3.1496"
Cylinders	2
Compression ratio	10:1
Bore/stroke ratio	1.313

Construction

Block material	aluminum
Head material	aluminum
Valvetrain	Rotary
Fuel type	gas
Advertised HP	232 hp

What these numbers mean

Bore/stroke character	1.313 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves
Mean piston speed at 6,000 RPM	3,150 ft/min — conservative for a street engine
Displacement per cylinder	40.0 ci
Static compression	10:1 — in the range that usually runs on pump premium

Run the numbers for this engine

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• Displacement calculator
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• Piston ring gap calculator
• Piston speed calculator
• Carburetor CFM calculator

Vehicles (3)

• Mazda RX-8 (High Power)
• Mazda RX-8
• RX-8

Similar engines

• Mazda 13B-T — 80 ci
• Mazda 13B-T — 80 ci
• Mazda 13B-REW — 80 ci
• Mazda 13B-MSP (Renesis) — 80 ci
• Mazda 13B (Carbureted) — 80 ci
• Mazda 13B · 3.150" × 3.150" · 9.4:1 — 80 ci
• Mazda 13B-T (FC) — 80 ci
• Mazda 13B · 3.150" × 3.150" · 9:1 — 80 ci

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