Bx engine swap

Bx(1,4) · Post by **Bx(1,4)** » Wed May 13, 2020 12:18 pm

Hi, I have the 1992 bx 1,4 and i would like to swap my engine. I am thinking of installing an C5 engine but i do not know if it can fit. Also I dont know if I can put the c5 ecu if the engine fits.

rutter123 · Post by **rutter123** » Wed May 13, 2020 1:59 pm

It depends on how much money you want to throw at it and your technical ability, anything is possible. You need to consider the drive train, subframe, changing the hydraulic system to name but a few and the extra weight of a c5 lump.
An Eastern European guy fitted a 3.0 v6 Xantia engine into a bx but not without a lot of adjustments.

Kaapelimies · Post by **Kaapelimies** » Wed May 13, 2020 3:53 pm

C5 is a problem because of CAN-bus electrics. You really have to know what to do if you think of it..

Bx(1,4) · Post by **Bx(1,4)** » Wed May 13, 2020 4:06 pm

So, If I want to swap to a c5 engine I need to change the hydraulic system? What about an other engine (for example xsara mk2 engine)?

Bx(1,4) · Post by **Bx(1,4)** » Wed May 13, 2020 4:11 pm

Also if I decide to put a c5 engine I will connect to ecu only the wires for the engine without having other problem?

Kaapelimies · Post by **Kaapelimies** » Wed May 13, 2020 5:27 pm

No and no. Search for a donor car without CAN and antitheft, otherwise it will be two years of studying. Hydraulics is no problem, physically the engine will fit but nothing will work. Have a google on CAN and antitheft. Even if you can find a description of C5 electrics will help you make the decision to not do it..

Bx(1,4) · Post by **Bx(1,4)** » Thu May 14, 2020 10:12 am

So, what car would you suggest me?

Kaapelimies · Post by **Kaapelimies** » Thu May 14, 2020 9:53 pm

Why do you want to change the engine? Any donor BX would be an easy place to start with.

Post by **xantia_v6** » Thu May 14, 2020 10:18 pm

Generally speaking, any PSA engine (up to 2.1 litres) from the 1990s should fit, See https://en.wikipedia.org/wiki/List_of_PSA_engines for a shopping list... You are probably more interested in something from the XU or XUD (or perhaps EW/DW) ranges.

The higher power engines (2.0 TCT, 2.1 TD and 2.0 HDI 110) use the larger ML5 gearbox which may be difficult to fit in a BX.

Bx(1,4) · Post by **Bx(1,4)** » Thu May 14, 2020 11:19 pm

Kaapelimies wrote: Thu May 14, 2020 9:53 pm Why do you want to change the engine? Any donor BX would be an easy place to start with.

Because it has more than 350.000 km and I said that if I change it why not to put a newer one.
But if I decide not to do it I will make a full repair/ restoration

Post by **Tim Leech** » Fri May 22, 2020 11:48 am

The 1.4 engine is shared with lots of other Peugeot Citroen cars so maybe look for a lower mileage one of those? Or maybe a 1.6 Version of it

saintjamesy89 · Post by **saintjamesy89** » Mon May 25, 2020 9:42 pm

Ooh, interesting project! I liked my 14 TU and can imagine a bigger TU variant could only be more fun.

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