Hey all, Im becoming paranoid that my 04 BKD PD 140 Head may fail, as its never been done to my knowledge. I was planning to Hybrid it, but I have recently came across a PD 170 thats got the entire engine etc undamaged and been offered it for a really good price. I know someone more than capable of fitting it, and I assume it would fit no problems? What Im thinking is, if I get the 170pd in there, with DPF removed = 220HP, already taking me to where a Hybrid would on my 140pd. Has anyone done this conversion? the only thing I can think of. would the ECU from the 170 talk to the rest of the electrics ok?

The ECU is different between the PD140 and the PD170. The PD140 uses a Bosch EDC16 ECU and the PD170 a Siemens PPD ECU. I'm not sure about the compatibility of the sensors and loom etc so I'd suggest you swap the engine loom as well, and you would need someone to code the ECU to the car (never done it on a PPD so not sure what the script is).

Shark... Bosch == Siemens

still, different ECU's though

This is true

But what I'm saying, is that there should be some common ground with regards to inputs/outputs

Hmmm, I dare I say a PD140 to PD170 engine swap isn't going to be straight forward. Getting the thing to physically fit shouldn't be a problem, its all the electronics that could be a nightmare... Look at Devonutopia's build thread for his mongrel.

Yes thats my one concern, but I think If I see my head going I will try it, it will definatley physically fit, and the in car systems are no doubt the same, so the 170 ECU should be able to run them... I have actually just finished my work contract at the mo so Im currently out of work, otherwise I would give it a go anyway!

What are the differences between the 140 and 170? Aren't they just a turbo and a map?

What are the differences between the 140 and 170? Aren't they just a turbo and a map?

Different turbo, piezo injectors in the engine, different ECU and a damn annoying DPF are the main ones I can think of.

I'm sure it's possible as I'm certain the engine would fit and the ECU can't be that big a deal. The fact that engine goes into that car also goes into cars that share parts helps too.

Personally I don't know why you're worried about the head on your PD140. If it's not porous by now, then it's not going to go any time soon IMHO.

That plus the PD140 can go well past 225 and you don't have to remove the DPF. Look at DevonMikeyboy as an example of how far it can be taken.

If you have a good deal on the engine then buy it and store it and see what happens to your 140.

Why not just put the injectors and turbo from the 170 on it?

Why not just put the injectors and turbo from the 170 on it?

The injectors are not just a bolt on change over as IIRC they are not driven by the cam, but electronically.

As I've already expressed however, it doesn't seem worth it IMHO

Ok... just salvage the turbo?

Ok... just salvage the turbo?

Save effort, bolt on a hybrid and have more boost available without any faffing?

Personally I don't know why you're worried about the head on your PD140. If it's not porous by now, then it's not going to go any time soon IMHO.

The reason Im considering it, is after a recent Rolling Road day, a week later while checking the usual levels, I noticed the Coolant had gone down a bit(noticably, about 3/4 inch). Thats what made me think the Head could be on its way out. Im going to keep an eye on it, and if it goes down again, going to toss in some K Seal. if still goes pop, then Im going to attempt a 170 conversion!

Don't put in K-Seal, that stuff can really muck up narrow water passages in the engines.

Are you sure the level change isn't just down to the weather getting cooler.

Im watching it closely, in fairness, the level doesnt seem to have gone down since.. I dont recall the car doing this any other winter though?

Fluid levels will change with temperature deviations, it's perfectly normal.

Generally speaking colder water takes up less space than warm water so when cold the coolant level will drop in the expansion tank until warmed up.

Fluid levels will change with temperature deviations, it's perfectly normal.

Generally speaking colder water takes up less space than warm water so when cold the coolant level will drop in the expansion tank until warmed up.

Until it freezes, of course - that's why ice floats!

(OK, I know about antifreeze in motors....)

Until it freezes, of course - that's why ice floats!

(OK, I know about antifreeze in motors....)

I said generally, as while I was going to cover the 4 degrees point I decided it wasn't worth it