diesel pump from later car

rabbercelt · Post by **rabbercelt** » Fri Sep 10, 2010 3:17 am

hi all has anyone put a bosch diesel pump from another citroen eg zx or xantia into a 17 tzd,which has currently got a roto diesel pump.I am interested to find out out if its possible.

JayW · Post by **JayW** » Fri Sep 10, 2010 4:47 am

Being that the Bosch pumps are the same as the BX ones (Bosch is standard BX fit as well as Lucas), Yes, Doc has and i believe Mat has too (amongst others...) Much additional powah can be gained...

mountainmanUK · Post by **mountainmanUK** » Fri Sep 10, 2010 8:39 am

I may be wrong (frequently am!), but I believe that you would also need to change the injectors too, as different ones are used by Bosch-pumped motors.

Gibbo2286 · Post by **Gibbo2286** » Fri Sep 10, 2010 9:26 am

Just had a quick look at the parts list, there are 18 different pumps and 9 different injector part numbers fitted across the diesel range according to rpo number so it's probably not a good idea to be swapping bits around without first consulting the list. Gibbo.

KevR · Post by **KevR** » Fri Sep 10, 2010 9:43 am

JayW wrote: Much additional powah can be gained...

Care to elaborate...?
Does the extra power come at the expense of extra smoke/worse fuel consumption?

JayW · Post by **JayW** » Fri Sep 10, 2010 10:32 am

The earlier comment about the injectors is correct, they would also need to be changed to match.

I *believe* the extra power comes from the increased fuel delivery (as the Bosch is far more adjustable).

Doc got his up to somewhere around 140bhp with the additional T3 swap but the engine eventually got upset at his power crazed ways, developed a tumour and died... (though reincarnation is likely)...

Best person to brain-pick is the man himself, borrow a couple of brain cells so-to-speak, but go easy, i don't think there's much left...

Post by **mat_fenwick** » Fri Sep 10, 2010 11:36 am

This may be useful...
I didn’t actually swap the pump but have fitted the 1.9 turbo engine from a Xantia, which happily came with a Bosch pump. A lot easier to adjust but of limited benefit unless you adjust the boost to suit.
More power = more smoke although with perhaps more careful set up of the pump and less boost than I have this could be minimised…the other reason for the swap would be veg oil compatibility.