Petrol to AFN ETDi

[ninja.turtle007]

Also a Syncro with an oil burner and a whistling turbo sounds the nuts!

oh yes we all remember Andy Simpsons beast

and what happened to it when he played in the puddle

I take it the turbo didn't like rapid cooling effect of the puddle?

[jed the spread]

2.1 MV

70L @ £1.36 = £95.20
248Mi per tank = 17.71MPG
= £0.383 PMi

ETDI AFN

70L @ £1.42 = £99.4
424Mi per tank = 30.11MPG
= £0.234 PMi

Saving of 14.9p per mile.

That is quite a big difference Tom.

My house to Russels house (about 600km) was done in two vehicles recently of exaclty the same type.

My Westy with an aaz, on 215/75/15 bfg tyres did it on one tank.
LHD's Westy with a 1.9 dg on 215/75/15 bfg tyres did it on one and three quarters of a tank.

I am doing the same trip in a week or so in exactly the same vehicle type with the same tyres and will add the figures.

Jed

I feel there is room for improvement on the diesel figures.[/quote]

[jed the spread]

Also a Syncro with an oil burner and a whistling turbo sounds the nuts!

oh yes we all remember Andy Simpsons beast



















and what happened to it when he played in the puddle

Now that was a spectacular ending I don't think I will ever forget that spectical, I have never seen a van ragged so hard. It even made The Horse look like my little pony hehehehehe....

Jed

[syncroandy]

Are any of you AFN guys keeping the EGR system ? A lot of conversions delete this, but it's supposed to be worth a couple of MPG.

I'm keeping my AFN bone stock in the interests of economy (no big nozzles etc.) but was planning to delete EGR, but now I'm reconsidering..

If anyone has a spare Golf AFN inlet mani/EGR valve/pipe lying about I might be interested in taking it off your hands, the Passat one I have here sticks out a bit more than I like.

[ninja.turtle007]

Are any of you AFN guys keeping the EGR system ? A lot of conversions delete this, but it's supposed to be worth a couple of MPG.

I'm keeping my AFN bone stock in the interests of economy (no big nozzles etc.) but was planning to delete EGR, but now I'm reconsidering..

If anyone has a spare Golf AFN inlet mani/EGR valve/pipe lying about I might be interested in taking it off your hands, the Passat one I have here sticks out a bit more than I like.

I do not have EGR and I'm using larger nozzles.

[silverbullet]

Tom if your MV was only returning 17 mpg than it must be pretty shagged. I know that Neil's old one returned more like an honest 23 that last time I shotgunned with him up to Wales and that was on MT's and with the Vindic on. I've got that engine here to open up; interesting to see what state it's in (for wbx fans anyway)

Where are you getting derv at 1.42?!! I'm hardly out in the countryside but it's more like 1.45 here.

30mpg is pretty impressive though. Do you expect that to improve once the novelty of all that boost has worn off?

[ninja.turtle007]

Tom if your MV was only returning 17 mpg than it must be pretty shagged. I know that Neil's old one returned more like an honest 23 that last time I shotgunned with him up to Wales and that was on MT's and with the Vindic on. I've got that engine here to open up; interesting to see what state it's in (for wbx fans anyway)

Where are you getting derv at 1.42?!! I'm hardly out in the countryside but it's more like 1.45 here.

30mpg is pretty impressive though. Do you expect that to improve once the novelty of all that boost has worn off?

It was so under powered for the tyre size and gearing it was foot to the floor everywhere almost.

As far as I am aware it was a VW replacement engine.

23MPG, really? Was that measured accurately or a rough estimate? Seems a little high. Although a lifted Westy must weigh a load more and be less aerodynamic.

I'm sure that with careful driving I could squeeze a good few more miles to the gallon. I'll keep you posted. But to be honest it does need to rev a little to keep it happy. You can drive my A6 130 BHP PD on tick over almost.

£1.45 PL that's Chelsea prices!! In Telford it was £1.38!!!

[..lee..]

@ andy.

EGR...................NO

have you ever seen inside the inlet manifold of an egr piece of "pooh". they are the bane of my life. id rather shove wasps up my a*** than have egr anywhere near my van. carbon footprint my a***. how fast could linford christie run if you taped a pipe from his a*** to his mouth. they are "pooh".




..................................... hope they didn`t hear that ........................................

[syncroandy]

I just cleaned mine out. Didn't seem too bad for 200k.. Maybe it had already been done at some point.. There was a ring of hard deposit where the pipe connects then the rest was just soft tarry stuff that washed out with some paraffin.

Point well made though. You don't get any spurious DTC's from deleting it ?

[Mudlark]

Have the EGR on mine; had no real issues with it. Been told to take it off if I want more power or keep it on if I want more mpg. I kept it on as Im averaging 24-25 mpg as it is.

[ewenmaclean]

Hello,

sorry - not a syncro owner, but just a note on the tdi egr system from my experience.

It's a good point about error codes - If you delete the EGR physically with a blanking plate, which I have on my tdi, you can eliminate error codes by adapting the EGR cycle in vag-com - login (12233), adaptation and enter 33768 in the new value box and then save. The error codes are thrown if the actual MAP reading is higher than it requested due to the physical EGR delete - with 33768 the requested and actual will be so close that it won't throw an error code. Of course you need to keep the EGR valve (N18) itself connected with the pipes blanked off (or I suppose at least a resistor of the same value) but this is a useful thing to have on an AFN as it serves as a backup N75 valve (although not identical).

It's also possible to completely erradicate the EGR using a remap.

Ewen

[syncroandy]

Thanks Ewen, good info ! Couldn't find that in the Rosstech wiki..

[..lee..]

be interested to know how the egr increases mpg. apart from emmision controll i`m not aware they do anything else.

[syncroandy]

Lee, all I'm saying is I read that somewhere.. not that its true. Maybe people are seeing higher MPG because they did the delete the wrong way.. More research needed really. Today I found some stuff on tdiclub about EGR deleting, on later cars, there's a 'throttle valve' aka ASV. The ECU uses the ASV to shut off the normal air path and 'encourage' the engine to breath via the EGR. People have been deleting the EGR, but doing nothing about the ASV. The result is the ECU throttles the engine, leading to worse performance and ecomomy. Possibly the comments I'd seen relate to this issue.

[torchy]

Interesting post this but cant help thinking we have 1970's designed vehicles built in the 80's about as aerodynamic as a brick . But they are simple engineering which is great because we go and dunk them in water and mud and....stuff. So why go to great expense to put a fancy engine in which needs ECU's etc etc which are then prone to failure because of said dunking?

Fuel consumption, yes of course but what percentage of us use these as our daily drivers? even if we do the standard JX isn't that bad.......then at the weekend you can dunk it in water without worrying because it only has a couple wires to worry about. All the electronics on my MV are bad enough, so for sure I would not want to add complications to the simple diesel.

How much is such a conversion compared to how much extra fuel you would have to buy over [say] 20,000 miles?

Don't want to highjack the thread.....just a thought.

Peter