Single weber on Stock 2ltr motor?good or bad?

Vw nutter Wolfsburg Wizard

661 posts · joined Jun 2004 · 9 Apr 2006, 4:32 pm

#473585

Hi, i am looking at getting a single progressive weber for my stock 2ltr kombi motor, i am just curious to know the good and the bad things about this option? will i loose power etc? or should i stick to the stock carbies?, any one done this befor? let me know of any good or bad issues going this option,here this is what i am thinking about, what do you guys think? its obviously for a stock 2ltr kombi engine.have a look
http://www.carburetion.com/weber/Dataresults3.asp?Kit_Nbr=K297&Model=TYPE%20II%20/%20TYPE%20IV%20LEVEL%201
cheers
jurion

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 · 9 Apr 2006, 5:01 pm

#473595

If your stock carbies are working, then I would leave them on. They are set up well for the stock motor.

EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

Vw nutter Wolfsburg Wizard

661 posts · joined Jun 2004 · 9 Apr 2006, 5:37 pm

#473604

hey pete, yeah well therev been tuned proffesionally etc, but they seem to eat the fuel a bit, just thought it might be easier and cheaper to run a single, but i was reading the single carby manifolds tend to ice up in cold conditions, so i dont know if i should go this options, what do you think?
cheers
jurion

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 · 9 Apr 2006, 5:59 pm

#473614

stay with the factory twins.

Vw nutter Wolfsburg Wizard

661 posts · joined Jun 2004 · 9 Apr 2006, 6:03 pm

#473617

lol ok! any specific reason?

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 · 9 Apr 2006, 6:14 pm

#473624

A single weber will eat more fuel, the stock carbies are actually not that big. The other option would be twin Kadrons, Stan Pobjoy does a conversion kit for the Kombi motor. All the 2lt motors he is doing with them are getting 28mpg.

Vw nutter Wolfsburg Wizard

661 posts · joined Jun 2004 · 9 Apr 2006, 6:20 pm

#473629

yeah sounds cool, just thought it would be cheaper to get a single and work out more effecient, i guess not, ill probly stick to the stockies then, thanks for the helpfull info mate, are there any other (cheap)options for a stocl 2ltr to get it more effecient/more power?
cheers
jurion

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 · 9 Apr 2006, 6:24 pm

#473632

You have to compare what "eating the fuel" is?

Our 1600 Beetle is using as much fuel around town as the Bus. I would say it is using more than it should, and the bus is being very respectable. All comparative really.

You have your original twin carbs on now, not costing you anything. Any other carby setup is going to cost money to buy, put on and tune.

EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 · 9 Apr 2006, 6:25 pm

#473633

Vw nutter wrote:yeah sounds cool, just thought it would be cheaper to get a single and work out more effecient, i guess not, ill probly stick to the stockies then, thanks for the helpfull info mate, are there any other (cheap)options for a stocl 2ltr to get it more effecient/more power?
cheers
jurion

More efficient - drive it less, and when you do, drive easy on the accellerator pedal.

More power - equals more petrol.

EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

Vw nutter Wolfsburg Wizard

661 posts · joined Jun 2004 · 10 Apr 2006, 10:49 am

#473900

yeah thing is i have been driving it responsibly, i spoke to mick at croydon vdub, who was the bloke who tuned it, and said that my fuel pumps on the carbys are over fuelling and pissing in fuel, so this is probly it, hey pete pedal to the metal!, phhht since when? lol
i always take your information into account, cheers pete.
so i spoze ill get those pumps looked at then hey, unless someone offers me some twin webers? lol
cheers
jurion

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 10 Apr 2006, 1:06 pm

#473936

What are you going to pay for the prog??

There is a set of 44's for sale at the moment for $650
How much more is that than the progressive

Progressives like heat - and the Type 4 motor cant be tapped for heat like a type 1 motor can.

Add to that the extra width of a type 4 motor and the fact you live in Melb and your fule will be falling out of suspension b4 it gets to the clyinders.

Futue te ipsum!!!

aggri1 Insano Dub Head

824 posts · joined Dec 2003 · 12 Apr 2006, 7:31 pm

#475059

I've heard the TIV gets pretty torquey with a single carb. But it won't do well in cold weather... As has been mentioned.

I get around 11litres per hundred km in my twin carby 1800. That's completely stock. 28mpg is like 8.4litres per hundred, that sounds like a bit of a stretch to me... Great if true though!

Single carby'd have to be a crapload easier to tune than any twin setup though... If you're into doing that sort of thing yourself. They don't need it that often do they? And in terms of reliability, I also had a stuck needle valve with fuel dribbling everywhere once. And it used to also stick shut, meaning two cylinders would stop working. Reliability _might_ be better with a single..?

Anyone have experience with a single carby TIV?

EDIT: here are some people saying that stock twins are better than a weber progressive:
http://www.thesamba.com/vw/forum/viewtopic.php?t=157299
http://www.thesamba.com/vw/forum/viewtopic.php?t=158629

[ Edited on 12-4-06 by aggri1 ]

Robo Compulsive Aussie Vee Dubber

4,491 posts · joined Feb 2003 · 12 Apr 2006, 8:02 pm

#475086

I have one on mine. The originals wore out and I got sick of having to tune them all the time. There is a slight flat spot on take off and it seems to lag a bit, then when the secondary kicks in it takes off, sort of like turbo lag or two stroke powerband effect, you just have to adapt your driving to suit. When you are going up hills if you can keep the revs in the peak torque range she really pulls hard, and holds the revs longer and better than with the stock twins. I live on the NSW QLD border, so its realitively warm all year round. If I lived in a colder climate I think you would have problems with this set up that would make it not worthwhile, but then again I see that they sell this set up in the UK so I beg to wonder? If I had the money I would definately go for a set of 40 or 44 twin Dellorto's on a stock 2ltr. I got the progressive for $80 and put a kit in it, so it was cheap as. This will have to do until I get the motor rebuilt and can afford the Dell's.
Rob...

Boxer Power
Member of DMLRK.....Die Mittler Lebuns Resto Komeradschaft

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 12 Apr 2006, 9:50 pm

#475173

aggri1 wrote:.... 28mpg is like 8.4litres per hundred, that sounds like a bit of a stretch to me... Great if true though!

28.3 mpg is 10km/L or 10L/100km

Futue te ipsum!!!

aggri1 Insano Dub Head

824 posts · joined Dec 2003 · 13 Apr 2006, 8:17 am

#475266

Bizarre wrote:
aggri1 wrote:.... 28mpg is like 8.4litres per hundred, that sounds like a bit of a stretch to me... Great if true though!
28.3 mpg is 10km/L or 10L/100km

Oh really, I was lazy and just used Google (its unit conversion facility). Perhaps it's a US/Imperial thing. Stupid nonsense units, grumble grumble, dumb system... Grrr. :P

Cheers, A.

Purple Martin Fahrvergnugen

913 posts · joined Feb 2003 · 13 Apr 2006, 8:42 am

#475272

I used to have one of these on my 2L kombi. Horrible flat spot in the middle, not great power, terrible icing in winter (which you WILL suffer from in Melbourne), difficult to start when cold.

I took it off and put stock dual solexs on. No flat spots, BETTER overall power, no icing whatsoever, great for cold starts.

The answer is simple. Go with stock dual solexs for a stock 2L.

1959 red & white Beetle
1975 Kombi camper