# PSA XU engine

The PSA XU is a family of internal combustion engines used in Citroën and Peugeot automobiles. It became the dominant mid-size engine in Peugeot and Citroën products through the 1980s and 1990s.
The XU design was introduced in 1981 with the Peugeot 305. It was a SOHC or DOHC straight-4 design with two or four valves per cylinder, using petrol as fuel. It was applied transversely in front wheel drive vehicles only, tilted by 30°. Displacement ranged between 1.6 and 2.0 L (1,580 and 1,998 cc), and all production XU gasoline engines had a bore of 83 or 86 mm (3.27 or 3.39 in). The engine uses an aluminium cylinder head in all models. All models' blocks are made, except XU10, in cast aluminium alloy with removable cast iron wet cylinder liners. XU10 blocks are made in cast iron, with bores machined directly in the block, without removable cylinder liners. Its first Citroën application was on the Citroën BX in 1982, where it appeared in 1.6 L (1,580 cc) format.
The XU was replaced by the more modern EW/DW family.

## XU5

The XU5 had a displacement of 1.6 L (1,580 cc), with a bore and a stroke of 83 mm × 73 mm (3.27 in × 2.87 in). All XU5 engines were SOHC 2-valve per cylinder designs. They used either a single or double-barrel carburetor, or fuel injection, depending on model. Output ranges from 80–115 PS (59–85 kW; 79–113 hp).
| Model | Output | Notes | Model of car |
| XU5 J | 105 PS (77 kW; 104 hp) | Fuel injection | Peugeot 205 GTi 1.6, CTi 1.6 Citroën BX16 TRi Citroën Visa GTI |
| XU5 1C | 80 PS (59 kW; 79 hp) | 1-bbl carburettor | Peugeot 205 Peugeot 309 GR, XR, SR and SX (-->88) Citroën BX 15 RE/TGE |
| XU5 2C | 92 PS (68 kW; 91 hp) | 2-bbl carburettor | Peugeot 309 GR, XR, SR SX and XS 1.6 (89-->) Citroën BX 16 TRS Peugeot 405 SR, GR, GRX and GL |
| XU5 M3/Z | 89 PS (65 kW; 88 hp) | Fuel injection catalyst | Peugeot 309 GR, XR Peugeot 405 GRi Peugeot 205 XS, GT, Roland Garros (1993) Citroën ZX |
| XU5 S | 94 PS (69 kW; 93 hp) | 2-bbl carburettor | Peugeot 305 GT (-->85) |
| XU5 JA | 115 PS (85 kW; 113 hp) | Fuel injection | Peugeot 205 GTi 1.6 (86-->), CTi 1.6 (-->92) Peugeot 309 1.6 SRi Citroën Visa GTI 115ch (86-->) Citroën BX16 GTi |

## XU7

The XU7 had a displacement of 1.8 L (1,762 cc), with a bore and a stroke of 83 mm × 81.4 mm (3.27 in × 3.20 in). All XU7 engines used fuel injection, with a 16-valve DOHC version, the XU7 JP4, also produced. Output ranged from 90–112 PS (66–82 kW; 89–110 hp).
| Model | Code | Output | Notes | Model of Car |
| XU7 JB | LFX | 90 PS (66 kW; 89 hp) | Fuel injection catalyst | Citroën Berlingo, Citroën Xsara, Citroën Xantia from 1998 Peugeot 406 SR, Peugeot Partner |
| XU7 JP | LFW | 99 PS (73 kW; 98 hp) | Fuel injection catalyst | Eurovans |
| XU7 JP | LFZ | 101 PS (74 kW; 100 hp) | Fuel injection catalyst | Citroën Xantia up to 1998, Citroën Xsara, Citroën ZX Peugeot 306, Peugeot 405, Peugeot Pars, IKCO Samand |
| XU7 JP4 | LFY | 110 PS (81 kW; 108 hp) | 16-valve DOHC catalyst | Citroën Xantia, Citroën Xsara, Citroën ZX 1,8 16V Peugeot 306, Peugeot 406, Peugeot Pars ELX, IKCO Samand Sarir |
| XU7P | XUP | 98 PS (72 kW; 97 hp) | Fuel injection catalyst | Peugeot Pars, IKCO Arisun 2, IKCO Soren Plus |

## XU8

The XU8 had a displacement of 1.8 L (1,775 cc), with a bore and a stroke of 83 mm × 82 mm (3.27 in × 3.23 in). The only engine in this family is the 16-valve DOHC turbocharged XU8 T which was fitted to the Peugeot 205 Turbo 16.
| Model | Output | Notes | Model of Car |
| XU8 T | 200 PS (147 kW; 197 hp) | 16-valve DOHC turbo | Peugeot 205 Turbo 16 |

## XU9

The XU9 was the predecessor to the XU10 and had an aluminum block with wet iron liners. It had a displacement of 1.9 L (1,905 cc), with a bore and a stroke of 83 mm × 88 mm (3.27 in × 3.46 in). Many versions were produced, from a double-barrel carburetted 8-valve to a 16-valve DOHC fuel injected model. Output ranged from 105–160 PS (77–118 kW; 104–158 hp).
| Model | Code | Output | Notes | Model of Car |
| XU9 S | 159B / 159Z | 105 PS (77 kW; 104 hp) | 2-bbl carburettor | Peugeot 305 GT and GTX Peugeot 309 1.9 GT |
| XU9 2C | | 110 PS (81 kW; 108 hp) | 2-bbl carburettor | Peugeot 405 GR, SR and GLX |
| XU9 4 | 159B | 126 PS (93 kW; 124 hp) | Twin 2-bbl carburettor | Citroën BX Sport |
| XU9 J1 | DFZ | 98 PS (72 kW; 97 hp) | Fuel injection catalyst | Peugeot 305 GTX |
| XU9 J1/Z | DFZ | 105 PS (77 kW; 104 hp) | Fuel injection catalyst | Peugeot 205 CTI, Automatic, Gentry Peugeot 309 Automatic |
| XU9 M | DDZ | 110 PS (81 kW; 108 hp) | Fuel injection catalyst | Peugeot 309 XS Peugeot 405 GRi, GRiX4 |
| XU9 J2 | | 125 PS (92 kW; 123 hp) | Fuel injection | Peugeot 405 SRi Citroën BX 19 GTi 8V |
| XU9 JA/K | D6E | 130 PS (96 kW; 128 hp) | Fuel injection | Citroën ZX Volcane Peugeot 205 1.9 GTi Peugeot 309 1.9 GTi |
| XU9 JA/Z | DKZ | 122 PS (90 kW; 120 hp) | Fuel injection catalyst | Peugeot 205 1.9 GTi Cat Peugeot 309 1.9 GTi Cat |
| XU9 J4 | D6C/L | 160 PS (118 kW; 158 hp) | Fuel injection 16-valve DOHC | Citroën BX 19 GTi 16V Peugeot 405 Mi16 Peugeot 309 GTI-16 |
| XU9 J4/Z | DFW | 148 PS (109 kW; 146 hp) | Fuel injection 16-valve DOHC catalyst | Citroën BX 16V Cat Peugeot 405 Mi16 Cat Peugeot 309 GTI-16 Cat |

## XU10

The XU10 has a cast iron block with a displacement of 2.0 L (1,998 cc), with a bore and stroke of 86 mm (3.39 in), making it a square engine. Many versions were produced, from a double-barrel carburetted 8-valve to a 16-valve DOHC, fuel injected, turbocharged model. Output ranged from 115–200 PS (85–147 kW; 113–197 hp).
| Model | Code | Output (DIN)/rpm | Notes | Model of Car |
| XU10 2C | R2A | 115 PS (85 kW; 113 hp) at 5800 | 8v — 2-bbl carburettor | Citroën XM 2.0 Peugeot 605 2.0 |
| XU10 J2C/L | RFX | 121 PS (89 kW; 119 hp) | 8v — Fuel injection catalyst | Citroën Xantia I 2.0i Citroën ZX Volcane 2.0 Peugeot 306 XSi (-->97) Peugeot 405 SRi 2.0 Peugeot 605 (93-->) |
| XU10 J2 | R6A | 131 PS (96 kW; 129 hp) | 8v — Fuel injection | Citroën Xantia I 2.0i Peugeot 605 SRi (select markets) |
| XU10 J2U | RFW | 109 PS (80 kW; 108 hp) | 8v — Fuel injection catalyst | Citroën Jumper 2.0i (-->2002) Peugeot Boxer 2.0i (-->2002) Fiat Ducato 2.0 i.e. (-->2002) |
| XU10 J2U | RFL | 110 PS (81 kW; 108 hp) | 8v — Fuel injection catalyst | Citroën Jumper 2.0i (2002-->) Peugeot Boxer 2.0i (2002-->) Fiat Ducato 2.0 i.e. (2002-->) |
| XU10 J2TE | RGY | 141 PS (104 kW; 139 hp) | 8v — turbo catalyst | Citroën XM 2.0 Turbo CT Peugeot 605 2.0 Turbo |
| XU10 J2TE | RGX | 147 PS (108 kW; 145 hp) | 8v — turbo catalyst | Citroën XM 2.0 Turbo CT Citroën Xantia 2.0 Turbo CT Peugeot 406 SRi Turbo Peugeot 605 2.0 Turbo Eurovans |
| XU10 J4D/Z | RFT | 150 PS (110 kW; 148 hp) | 16-valve DOHC catalyst | Citroën ZX Coupé Citroën Xantia I Peugeot 306 S16 Peugeot 405 Mi16 mkII (94-->) |
| XU10 J4R/L3 | RFV | 134 PS (99 kW; 132 hp) | 16-valve DOHC catalyst | Citroën Evasion Citroën XM (98-->) Citroën Xantia Citroën Xsara Exclusive Fiat Ulysse Lancia Zeta Peugeot 306 Peugeot 406 (-->99) Peugeot 806 Peugeot 605 |
| XU10 J4RS/L3 | RFS | 166 PS (122 kW; 164 hp) | 16-valve DOHC catalyst | Citroën ZX Dakar Citroën Xsara VTS Peugeot 306 Rallye Peugeot 306 GTI6 |
| XU10 J4TE | RGZ | 196 PS (144 kW; 193 hp) | 16-valve DOHC turbo catalyst | Peugeot 405 T16 Turbo 4x4 |
| XU10 J4/L/Z | RFY | 152 PS (112 kW; 150 hp) | 16-valve DOHC catalyst | Peugeot 405 Mi16 Citroën ZX 16v Peugeot 306 S16 |

## Motorsport

The XU engine was used in motorsport for over 3 decades.
| Model | Bore x Stroke | Displacement | Output | torque | Notes | Model of Car |
| *NO INFO* | 83 mm × 73 mm (3.27 in × 2.87 in) | 1.6 L (1,580 cc) | 515 PS (379 kW; 508 hp) | *NO INFO* | 16-valve DOHC turbo | Citroën AX Superproduction/ Supertourisme prototype (1988) |
| XU8 T | 83 mm × 82 mm (3.27 in × 3.23 in) | 1.8 L (1,775 cc) | 200 PS (147 kW; 197 hp) | *NO INFO* | 16-valve DOHC turbo | Peugeot 205 T16 Kitée |
| XU8 T Evo 1 | 83 mm × 82 mm (3.27 in × 3.23 in) | 1.8 L (1,775 cc) | 350 PS (257 kW; 345 hp) | *NO INFO* | 16-valve DOHC turbo | Peugeot 205 T16 Evolution 1 |
| XU8 T Evo 2 | 83 mm × 82 mm (3.27 in × 3.23 in) | 1.8 L (1,775 cc) | 550–600 PS (405–441 kW; 542–592 hp) | *NO INFO* | 16-valve DOHC turbo | Peugeot 205 T16 Evolution 2 |
| XU9J4x | 83 mm × 88 mm (3.27 in × 3.46 in) | 1.9 L (1,905 cc) | 217 PS (160 kW; 214 hp) | *NO INFO* | 16-valve DOHC | Peugeot 905 spider |
| XU10J4x | 86 mm × 86 mm (3.39 in × 3.39 in) | 2.0 L (1,998 cc) | 280 PS (206 kW; 276 hp) at 8700 rpm | 255 N⋅m (188 lb⋅ft) at 5900 rpm | 16-valve DOHC | Peugeot 306 Maxi |
| XU9J4 | 85 mm × 88 mm (3.35 in × 3.46 in) | 2.0 L (1,997 cc) | 304 PS (224 kW; 300 hp) at 5250 rpm | 580–635 N⋅m (428–468 lb⋅ft) at 3500–4000 rpm | 16-valve DOHC TR30R turbo | Peugeot 206 WRC |
| XU7JP4 | 84 mm × 90 mm (3.31 in × 3.54 in) | 2.0 L (1,995 cc) | 314 PS (231 kW; 310 hp) at 5500 rpm | 570 N⋅m (420 lb⋅ft) at 2750 rpm | 16-valve DOHC TR30R turbo | Peugeot 307 WRC, Citroën Xsara T4 W |