Acura F22B1 Specs: 85 x 95 mm (3.3465 x 3.7402 in), 145 hp

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The same engine also has a main page: Honda F22B1.

Acura F22B1 specs: 2.2L (132 ci) 4-cylinder, 85 x 95 mm (3.3465 x 3.7402 in) bore and stroke, 8.8:1 compression. Rated 145 hp, 1997. Used in the Honda Accord.

The Acura F22B1 is undersquare — the 3.7402" stroke exceeds the 3.3465" bore by 10.5% — a layout that trades peak RPM for leverage and torque low in the range. The 3.7402" stroke puts mean piston speed at 4,000 ft/min around 6,400 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 33.0 ci (541 cc).

8.8:1 on aluminum heads is low by modern standards and generally happy on regular pump fuel.

It is one of 3 engines in the Honda F-series family, the largest at 132 ci.

Dimensions

Displacement132 ci / 2.2 L
Bore3.3465"
Stroke3.7402"
Cylinders4
ConfigurationI4
Compression ratio8.8:1
Bore/stroke ratio0.895

Construction

Block materialaluminum
Head materialaluminum
ValvetrainDOHC
Fuel typegas
Redline6,300 rpm (factory limit)
Advertised HP145 hp
Years1997

Factory ratings by year

YearVersionHP @ rpmTorque @ rpmComp.
1997F22B1 net145 @ 5500147 lb-ft @ 45008.8:1

Factory specification sheet.

What these numbers mean

Bore/stroke character0.895 — undersquare — stroke exceeds bore, which favours low-end torque
Mean piston speed at 6,000 RPM3,740 ft/min — in the range typical of performance street engines
Displacement per cylinder33.0 ci
Static compression8.8:1 — low by modern standards, generally happy on regular pump fuel

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What cars have the F22B1?

2 factory vehicles, 1994–1997. Each year opens that model's engine table.

Similar engines

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