Volkswagen 109ci Specs: 81 x 86.4 mm

Volkswagen 109ci specs: 81 x 86.4 mm (3.1890 x 3.4016 in) bore and stroke, shared by all 7 versions. Displacement, compression and factory ratings.

At a glance

Displacement	109 ci
Cylinders	4
Bore	3.189"
Stroke	3.402"
Compression	9.5:1
Advertised power	150–180 hp
Years	1983–2005

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
PG	109 ci	3.189" × 3.4016"	—	158
APH / AWV / BKF	109 ci	3.189" × 3.4016"	9.5:1	150
AWP / BNU	109 ci	3.189" × 3.4016"	9.5:1	180
AEB / ATW; AWM	109 ci	3.189" × 3.4016"	9.5:1	170
JH	109 ci	3.189" × 3.4016"	—	—
JH / HT	109 ci	3.189" × 3.4016"	—	—
PL	109 ci	3.189" × 3.4016"	—	—

Factory cars with a Volkswagen 109ci

• Volkswagen Scirocco: 1983, JH; 1984, JH / HT; 1985, JH / HT; 1986, JH / HT; 1986, PL; 1987, JH / HT; 1988, JH / HT
• Volkswagen Corrado: 1990, PG; 1991, PG, 158 hp; 1992, PG
• Volkswagen Passat: 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005, 170 hp
• Volkswagen New Beetle: 1999, APH / AWV / BKF; 2000, APH / AWV / BKF; 2001, APH / AWV / BKF; 2002, APH / AWV / BKF; 2002, AWP / BNU, 180 hp; 2003, APH / AWV / BKF; 2003, AWP / BNU, 180 hp; 2004, APH / AWV / BKF; 2004, AWP / BNU, 180 hp; 2005, APH / AWV / BKF, 150 hp

What varies across the family

All are undersquare — stroke larger than bore, favouring torque low in the range.

Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.

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