Club 80-90 Forums

Hi,

Just read an interesting debate on high tops/pop tops and the dude with the awesome high top (if there is such a thing ) has a 1.7 diesel (same as me) and he gets 45-50 mpg.

I reckon i get 30-35. I used to get 40 at least.

Why has this suddenly gone breasticles up ?

One idea i might have, is that the air intake on top of the filter is a bit pooh. The pipe work is broken completely. Anyone know where to get a replacement ?

Any other ideas ?

Thanks

Ringo

There is a theory regarding the type of shoes you wear could be directly connected to the fuel consumption of your chosen vehicle.

As far as the T25 Diesel is concerned these have been tested and with their massive data base it was found the best fuel return figures could be achieved by wearing slippers.
It goes on to say anyone who tends to drive in industrial foot wear has little or no feel of when the engine is labouring thus loosing valuble energy (Dumped fuel/over fueling etc etc) due to this lack of feeling in the right foot.

I must admit our petrol camper is returning nice fuel figures provided it stays parked up on the drive, and returning not bad ones when I drive when wearing my sandals..

Regards

Fritz,,,,,,,,,,

Weathers getting colder, slow down by 5mph to compensate

Nothings changed there then - i've always driven it like i stole it!

With a 1.7 diesel i wouldn't get anywhere otherwise!

Let us see the long term figures to plot it out, or the graph you have done already showing the trend as it drops over the last year.

Then it should be relatively easy to get a feel for what may or may not be happening, consumption wise

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Time t

E D I T: the spaces havent worked so this graph looks even more rubbish than intended...

Time t was when i suddenly woke up and realised i was spending more on diesel.

Thats as technical as it gets im afraid!

OK, point taken

Does anyone know what the air intake pipe thingy is called ?

Thanks

Ringo

A better description and I'll dig out the Vw Part No for you. Before or after the air filter (which is new isn't it?)

Choose a part number...

[will remove pcciy and link as soon as you have said]

not sure that pic is showing clive, i looked it wasnt here, i copied the link from it to my browser, its showed, came back here and could see it, maybe my end, maybe not.... can anyone else see it?

nope

Awesome.

I reckon its part 17b.

Thanks

Ringo

So, is it missing? Broken?

Its broken - split and bits of wire coming out of it.

Its a flexible pipe that takes air from the side of the van (below the air vent) to the top of the air filter.

Not sure if it makes a difference - obviously the engine is getting air, but it may not be as cool. Also, im not sure if the vents on the side of the van air intended to force air down to the engine bay and into the air filter - if it is then there is not much force due to this pipe being split.

Thanks

Ringo

Not force it, as much as ensure its collected from a cool place... Ask CJ at SyncrosparesUK or phone Russel or Ian at Syncro-Nutz to see if they have such an item. The engine bay does get awfully hot, and this does make more difference than any pressure feed effects until at least 120 mph.

Fortunately, the vehicle's air drag goes down more than the power does in hot ambient conditions, but picking up fresh, cool ambient air is still important, rather than hot engine bay air. The higher its picked up above hot tarmac, the better; there can be a large temperature difference between hot tarmac and air 2 metres above it in summer sunshine, up to 5 degrees C. Engine bay air can be anyone's guess in these conditions, 50, 60 or more? That sucks power and as well as that, means peak combustion temperatures go up and if turbocharged, reduces turbo efficiency giving even more of a temperature rise.

Thanks dude - very helpful indeed.