VW T25 that does 13mpg.

Post by **Dubstar** » 13 Feb 2007, 16:59

Working with the following link from the Brickyard, my 2ltr Aircooled automatic poptop Westy gives about 12mpg. Which I believe is about the same as a 400bhp Sierra Cosy. Which would be nice. If only.
http://www.robinwhite.fsnet.co.uk/conv/mpg.htm
See what you all get. Mine is around town driving though, not been long distance for a while. I get about 50 kilometres for a tenner of petrol.

Post by **Rozzo** » 13 Feb 2007, 17:09

hi m8
set the choke up yourself? just loosen the 3 screws in the ring round where the water pipes go when its stone cold and turn it either clock or anti clock wise, whilst feeling the pressure on the flap thats closed. set it so that its only loosely closed, almost rattly and it will go off much sooner and stay off much longer. on old fords i always used to set the highest stage of fast idle to around 1800 rpm too so all i had to do was press the throttle once then leave it alone and turn the key,,, first blip then would bring it down to 2nd stage fast idle at around 1250 rpm.
never had any problems once it was set like that.
sounds like yours is set on far too hard.
if this lot sounds a bit daunting tek it back to em with a print off of this and tell to set the bloody thing up properly.

cheers
julian

Post by **kevtherev** » 13 Feb 2007, 17:11

phade wrote:I get between 25mpg to 34mpg from my 2.0 litre Aircooled hightop campervan

........nice one phade

Post by **T'Onion** » 13 Feb 2007, 17:25

now now boys play nice, remember Jeni and mark are newbies , dont want to scare them off , especially since it was me who pointed them here , anyway scaring people is my job , like i've said Jeni/mark bring it round and i'll have a look , if all looks bad i'll pop my spare pierberg on it and take it from there

Post by **"WEAZLECHIN"** » 13 Feb 2007, 18:15

2.0 Ltr aircold. . . . . . . . . . . . . . .. . . great!!

Post by **kevtherev** » 13 Feb 2007, 18:56

set the choke up yourself? just loosen the 3 screws in the ring round where the water pipes go when its stone cold and turn it either clock or anti clock wise, whilst feeling the pressure on the flap thats closed. set it so that its only loosely closed, almost rattly and it will go off much sooner and stay off much longer. on old fords i always used to set the highest stage of fast idle to around 1800 rpm too so all i had to do was press the throttle once then leave it alone and turn the key,,, first blip then would bring it down to 2nd stage fast idle at around 1250 rpm.
never had any problems once it was set like that.
sounds like yours is set on far too hard.
if this lot sounds a bit daunting tek it back to em with a print off of this and tell to set the bloody thing up properly. Wink
cheers

good post razzolink

or have you still got the old p'burg might be worth asking steve at gasure how much a refurb is

Post by **T'Onion** » 13 Feb 2007, 19:35

or have you still got the old p'burg might be worth asking steve at gasure how much a refurb is

does steve do peirbergs ?

Post by **kevtherev** » 13 Feb 2007, 20:31

check this T'onion or have I got it wrong?

http://www.gasure.co.uk/carbrefurb.htm

Post by **T'Onion** » 13 Feb 2007, 21:34

cool i may sent him my second spare which as a broken part on it .. ta kev

Post by **phade** » 13 Feb 2007, 21:59

I have to admit the 34 mpg figure was based in a 350 mile run doing mostly 60 mph on motorways (m25, m11, a14, m6 and m55).

It generally does 25 mpg doing a 50 mile trip on the congested m25.

Post by **jen&mark** » 13 Feb 2007, 22:42

The van used to do about the same 13 mpg before the webber carb was fitted.
I was under the impression that the new carb would save us money by increasing the mpg. Instead, it does about the same (maybe a little less)

The old carb was leaking slightly and worn. (I was told this by the guy that came to do the tuning. It originally did 7mpg until the tuning)

We have booked it back into the the garage that fitted the webber for them to have a look. FOC

Thanks

Post by **kevtherev** » 13 Feb 2007, 22:48

Just curious as to how you work out the MPG

Post by **Fritz** » 13 Feb 2007, 22:51

I think you are experiencing the 'Grumpy Midget Syndrome',,,,
quite some time ago the 'Midget' decided to go down the single carb route with his 2.0 litre A/C high top T25, with a single unit bought from BBT in London,,,,,,,,,,,,To cut a long story, his first outing to mid Wales from sunny ST Helens (merseyside) returned him a nice 12 or so MPG,,,,he was gutted to say the least.

After some buggering about with rolling roads it was noted the carb wasn't suited for a T25 coz it didn't have a dual facility for the vacuum (advance/retard ) system employed on the A/C T25.
His was found to be running on full advance at all times hence the in different peformance and garbage MPG.

A call to the seller sorted his initial problem, but further problems with 'Icing' due to the length of the inlet tubes started causing all sorts of cold starting issues untill a 'pre heat' system was employed,,,,,,,

He used 2 systems 1 was ducting warm air from the heat exchangers to the top of the carb. 2nd was to use an after market Beetle manifold heater, which seemed to do the job....

Regards

Fritz,,,,,,,,,,,,,

Post by **jen&mark** » 13 Feb 2007, 23:08

What is rolling roads?

Im not sure what webber carb has been fitted. It was advertised on"just campers" as the one i needed for a 1984 T25. Do you think it may be the wrong type?. I
I have worked out the mpg by using £3.50 being a galon of unleaded. I put in £50 and travelled only 140miles before it had all gone.

Oh crap, ive just realised that the isnt 13mpg but its 10mpg.

Post by **Fritz** » 13 Feb 2007, 23:12

A rolling road is a device used by engine tuners to check how good/bad an is engine is running after subtle modifications....

Regards

Fritz,,,,,,,,

3.50 a gallon,,,,,,,,,,can you get me some of that,,,,

Club 80-90 Forums

VW T25 that does 13mpg.

Thanks for the info

Low MPG figures

what is rolling roads?