Acura J32A2 Specs: 89 x 86 mm (3.5039 x 3.3858 in), 260 hp

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The same engine also has a main page: Honda J32A2.

Acura J32A2 specs: 3.2L (196 ci) 6-cylinder, 89 x 86 mm (3.5039 x 3.3858 in) bore and stroke, 10.5:1 compression. Rated 260 hp, 2001–2003.

The Acura J32A2 is close to square: 3.5039" bore against 3.3858" stroke, within 3.5%, which splits the difference between a high-revving layout and a torque layout. The 3.3858" stroke does not reach 4,000 ft/min of mean piston speed until about 7,100 RPM, so piston speed is not what limits this engine's revs — valvetrain and breathing are. Each of the 6 cylinders displaces 32.7 ci (535 cc).

10.5:1 on aluminum heads is in the range that usually runs on pump premium; aluminum sheds heat faster than iron, which makes the same number a little more forgiving.

It is one of 18 engines in the Honda J-series family, sitting between the 182.9 ci and 223.6 ci members. 3 factory variants share these dimensions, rated at 260 hp across 2001–2003.

Dimensions

Displacement196 ci / 3.2 L
Bore3.5039"
Stroke3.3858"
Cylinders6
ConfigurationV6
Compression ratio10.5:1
Bore/stroke ratio1.035

Construction

Block materialaluminum
Head materialaluminum
ValvetrainSOHC
Fuel typegas
Redline6,900 rpm (factory limit)
Advertised HP260 hp
Years2001–2003

Factory ratings by year

YearVersionHP @ rpmTorque @ rpmComp.
2001J32A2 net260 @ 6100232 lb-ft @ 3500-550010.5:1
2002J32A2 net260 @ 6100232 lb-ft @ 3500-550010.5:1
2003J32A2 net260 @ 6100232 lb-ft @ 3500-550010.5:1

Factory specification sheet.

What these numbers mean

Bore/stroke character1.035 — square — bore and stroke are within 5%, a balanced compromise
Mean piston speed at 6,000 RPM3,386 ft/min — conservative for a street engine
Displacement per cylinder32.7 ci
Static compression10.5:1 — in the range that usually runs on pump premium

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Variants sharing these dimensions (3)

These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.

YearAdvertised HPCode
2001260 hpJ32A2
2002260 hpJ32A2
2003260 hpJ32A2

What cars have the J32A2?

2 factory vehicles, 2001–2003. Each year opens that model's engine table.

Similar engines

← All Honda J-series engines