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1.6L 16v - TU5J4 TU5JP4
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1.6L 16v - TU5J4 TU5JP4
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Forged TU5J4/TU5JP4 pistons for motorsport <1400cc conversions (reliner). Pin 18 mm, O 76/78, Compression ratio 12:1, CH ~28.5 mm. NFX/NFU compatibility. Road/track preparation.
Forged pistons for conversions FFSA < 1400 cm³ – engines PSA 1.6 16v TU5J4 / TU5JP4 (re-sleeving, pin 18 mm)
Objective: to reduce the bore of the TU5J4/TU5JP4 by re-sleeving in order to target a displacement < 1400 cm³ depending on FFSA categories. See calculation note below.
| Reference | OEM Bore 78,50 mm | OEM CR 10,8 :1 | OEM Pin 19,50 mm | Height OEM Pin 32,85 mm | Range | Coating | Aluminium | Forging | Dome | Weight | Rings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| K1340D250 | 76 | 12:1 | 18 | 28.5 | Wossner | NC | NC | NC | 7.0 | NC | 760XDS |
| K1480D050 | 78 | 12:1 | 18 | 28.4 | Wossner | NC | NC | NC | 10.8 | NC | 780XDS |
FFSA displacement calculation note (4 cyl.): Displacement = (π/4) × bore² × Stroke × 4.
Original TU5 stroke: 82.0 mm. To achieve a displacement < 1400 cm³, a bore ≤ 73.5 mm is required with the original stroke.
Examples (stroke 82.0): Ø78.0 → ~1567 cm³; Ø76.0 → ~1488 cm³ (still > 1400).
Optional: with stroke reduced to 77.0 mm, Ø76.0 → ~1397 cm³.
Practical consequence: these "pin 18" pistons are suitable for a resleeved installation and either for a specific crankshaft/stroke configuration or a final bore ≤ 73.5 mm (dedicated pistons not listed here).
Plan for connecting rods/pandit ends in 18 mm (or bushings) and check compression heights.
Compatibility (engine codes):
vehicles original equipped des engines TU5J4 / TU5JP4 :
| Brand | Model | Engine code | Power | Years |
|---|---|---|---|---|
| Citroën | Saxo VTS (S0/S1) | TU5J4 (NFX) | 120 hp | 1996 – 2003 |
| Peugeot | 106 II GTi/S16 | TU5J4 (NFX) | 120 hp | 1996 – 2003 |
| Citroën | C2 (JM_) 1.6 16V | TU5JP4 (NFU) | 109 hp | 2003 – 2010 |
| Citroën | C3 I (FC/FN) 1.6 16V | TU5JP4 (NFU) | 109–110 hp | 2002 – 2010 |
| Citroën | C3 Pluriel (HB) 1.6 | TU5JP4 (NFU) | 109 hp | 2003 – 2010 |
| Citroën | C4 I (LC_/LA_) 1.6 16V | TU5JP4 (NFU) | 109 hp | 2004 – 2011 |
| Citroën | Xsara / Xsara Picasso 1.6 16V | TU5JP4 (NFU) | 109–110 hp | 2000 – 2011 |
| Peugeot | 206 / 206 CC / 206 SW 1.6 16V | TU5JP4 (NFU) | 107–110 hp | 2000 – 2009 |
| Peugeot | 307 / 307 SW / 307 CC 1.6 16V | TU5JP4 (NFU) | 109–110 hp | 2000 – 2009 |
| Peugeot | 1007 1.6 16V | TU5JP4 (NFU) | 109 hp | 2005 – 2009 |
| Peugeot | Partner / Partner Tepee 1.6 16V | TU5JP4 (NFU) | 109–110 hp | 2001 – 2015 |
| Peugeot | 308 I 1.6 BioFlex (markets) | TU5JP4 (NFU) | 109 hp | 2008 – 2014 |
OEM piston references :
Warning: Before installation, please verify the integrity and conformity of each component of the piston kit as well as the correctness of the assembly in the engine; any warranty is strictly limited to the parts included in the piston kit.
