Whats the difference?

[crankedup]

I have asked on the Ford forum as well, but what are the difference between the TDi and the TDCi diesel engines as fitted to the Focus. Is one so much better than other and in what respect? Thank you.

[shouldbworking]

I know very little, but the tdci will have its dual mass flywheel self destruct, and ford will look the other way and go mmmm wear + tear

[bluespanner]

Essentially, one cas common rail injection and the other has conventional injection. They are essentially the same engine though, but with a multitude of differences.

[crankedup]

Thanks for info, my budget is around 3k so it will be an early TDCi of 2002/3. Any issues with the first ones to look for?

[knighty]

erm.....I have worked on this engine design in the past, and to look at it looks a mess of a design....BUT - its a great engine to drive, and the customers love it, the TDI indicates it is a conventional mechanical fuel pump, this is actually not that bad, as the injectors will last for ever.....ford TDCI diesel owners are finding out they need 4 new injectors every 50k miles with a common-rail engine......I'd say go for a TDI......as long as its not a normally aspirated diesel it will be fine!......I have a 1997 mechanical pump 1.9 TDI passat 110 bhp and it still pulls like a train

Edited by knighty on Thursday 29th November 15:13

[crankedup]

Excellent to hear of another 'pro' point of view, thank you. This has given me quite a bit to think about. Who said buying a car is easy?

Are the injectors a pricey item ?

Edited by crankedup on Thursday 29th November 16:48

[BB-Q]

Oh, the fuel shut off switch falls out of the pump too. And the turbos go. And the pumps themselves. The injectors have already been mentioned.

I drive round all day fixing stuff (in an orange van) by the way.

Go for the TDi every time.

Better still, get a petrol engine. I'm not a fan of the mechanical disaster area that is a modern car diesel engine. Diesels belong in commercial situations, not cars.

[crankedup]

And there was me thinking a diesel lump would just rumble on, thought it was to good to be true! I'm at early stages of the car replacement and still open minded enough to have a change of heart if I hear to many disadvantages. Of course every engine can have problems but I hope to choose the least (on avaerages)likely type of engine to give inherent problems.

[Welshbeef]

BB-Q said:

Oh, the fuel shut off switch falls out of the pump too. And the turbos go. And the pumps themselves. The injectors have already been mentioned.

I drive round all day fixing stuff (in an orange van) by the way.

Go for the TDi every time.

Better still, get a petrol engine. I'm not a fan of the mechanical disaster area that is a modern car diesel engine. Diesels belong in commercial situations, not cars.

Im sorry but thats just correct - there is a significant market of people who travel well over 40k a year and the fuel savings that diesel offers is something that they cannot ignore.

Imagine if they are running a big 4 door saloon 5 series or the like - what would you choose a 530d with 40mpg combined or the 530i which is much slower and uses much more fuel.

Or I guess the final clincher is that say you drive 200 miles a week in most petrol cars you will need to refuel every 2 weeks or before - that means one evening going down to the station waiting for an empty spot then waiting while it fuels then waiting to pay or you go for a diesel which offers 95% of what the petrol does but gies you added other bonus which you dont consider until you have one - few fewer fuel stops = more leasure time/less harmfull gasoline particles.
The fact that when your driving a diesel your using near to 85-90% of all its power & torque most of the time whereas in a petrol its a vastly lower %. Driving the most efficient engine has to be the better choice. Look at racing everything aims for maximum efficiency so why not have diesel on the road?

Note - I drive a 220bhp petrol FYI and I'd have no issues running a Diesel over a petrol. Its not a one size fits all its personal choice and the personal choice is reducing day on day with added travel costs so in time diesel will be the default choice with running a petrol a signifiacnt premium.

Sorry for rant

[//j17]

Welshbeef said:

BB-Q said:

Imagine if they are running a big 4 door saloon 5 series or the like - what would you choose a 530d with 40mpg combined or the 530i which is much slower and uses much more fuel.

Neither - I'd get a 540! (if I absolutely HAD to have something as common as a BMW that is).

Edited by //j17 on Monday 3rd December 16:59

[Welshbeef]

Talking about Brand new cars here and as such the 530i & 530D are the same price the 540i is much more & given higher budget you would then pitch that up against the 535d.


Also it was great to hear a racing driver state that he runs a 420CDI (DIESEL) and its more than what you need on the public highway, as he said whats the point of a petrol/high power perol as you cannot use the power.

[BB-Q]

The owners of these big diesels like the BMW's, etc. that I have spoken to have eall complained that when you actually use the performance of the diesel then it's as bad or worse than the petrol. Many diesel owners I speak to are getting around 30mpg from these big 6 pot diesels.

[BB-Q]

Welshbeef said:

BB-Q said:

Oh, the fuel shut off switch falls out of the pump too. And the turbos go. And the pumps themselves. The injectors have already been mentioned.

I drive round all day fixing stuff (in an orange van) by the way.

Go for the TDi every time.

Better still, get a petrol engine. I'm not a fan of the mechanical disaster area that is a modern car diesel engine. Diesels belong in commercial situations, not cars.

Im sorry but thats just correct .................

Why, thank you!

[chuntington101]

very off topic but has anyone read PPC this month?? there is a racing company building a VW Scirocco TDI. 255bhp and 400lbsft sound good to me!

Chris.

[Welshbeef]

BB-Q said:

The owners of these big diesels like the BMW's, etc. that I have spoken to have eall complained that when you actually use the performance of the diesel then it's as bad or worse than the petrol. Many diesel owners I speak to are getting around 30mpg from these big 6 pot diesels.

Well all I can commet on is the VAG 1.9 TDI when I drove that as fast as I did the Golf 1.8 T the TDI was high 40's mpg and the 1.8 T was low to mid 20's.

On PH BMW forum there seems to be many 535d owners and some who put cruise control on at 130leptons in Germany and they are claiming 40mpg or similar no petrol at that speed would be even half as good. Mind you it may be BS.


Also when you actually use all the performance say a 530i or 540i has to offer i.e. red line every gear all the time your going to be getting very low teens or simgle figs.

Has anyone here tried to keep up with a spiritedly driven 535d in a big engine petrol and then over the same route compared comsumption - something tells me that the inherrent efficiency of a compression engine will mean it has to be better.

[Mr2Mike]

BB-Q said:

The owners of these big diesels like the BMW's, etc. that I have spoken to have eall complained that when you actually use the performance of the diesel then it's as bad or worse than the petrol. Many diesel owners I speak to are getting around 30mpg from these big 6 pot diesels.

And what sort of mileage would you expect from a 330i driven hard? Quite a bit less than 30mpg methinks.

[Welshbeef]

Mr2Mike said:

BB-Q said:

The owners of these big diesels like the BMW's, etc. that I have spoken to have eall complained that when you actually use the performance of the diesel then it's as bad or worse than the petrol. Many diesel owners I speak to are getting around 30mpg from these big 6 pot diesels.

And what sort of mileage would you expect from a 330i driven hard? Quite a bit less than 30mpg methinks.

Exactly.
I think that most people with Diesles do drive them more to their limits than the equivalent petrol maybe its purely because if they drove a petrol like that they would look like a boy racer revving hard everywhere while a TDI is pretty quiet and low reving.

You could quie easily push along hard in a TDI with parents in law in the back and them not really realise however seeing the tacho hit 7000rpm every gear change would be cause for concern. Also imagine sitting at 70mph in 2nd on the motorway waiting for the overtaking opportunity while in the TDI 6th and you have plenty of grunt to match the 2nd gear 70mph launch of the petrol.


lol 70mph 6500rpm for 2 hr drive LMFAO

[crankedup]

Thanks, but its not a focus engine is it