Just wondering what you guys would recommend. The weber looks good but is expensive. Buy you get what you pay for i guess. Is there anything else you guys would recommend? Cheers.

ill be completely honest here, but others may disagree.

i find that bike carbs are easier than a weber.

they are cheaper if you are good at making things/finding bargains,

they look better

and they are easier to find.

but thats me. it takes alot more common sence installing bike carbs however. whereas a weber are a bit more 'plug and play'

My only problem would be fueling it. I haven't a clue! Where like u say the weber is plug and play. I'm more one for economy on power I'm not so worried about.

all depends how you set it up.

my bike carbs are running super rich, and i still get over 30MPG, I've heard of upto 50MPG on a run from people on here. there really nt bad on fuel, you just have to learn to drive them economically :)

I think id be useless at setting up bike carbs as I've never done so! If i can find a good set up ill give it ago if not it looks like weber! Pierburgs uselllessss

I was into the 60's mpg with bike carbs on a 1.4, got ridiculed for the claim on here by people who hadn't any experience with my set up themselves, but there you go. Nobody needs proof that a 1.8T Golf can do 40mpg but a tiny self-regulating carb on each cylinder of a 1.4 in a car half the weight and it's not scientifically possible apparently, and i must've forgot how much petrol i was buying that week..

Easiest conversion to achieve though? No. And certainly not when going for economy like that.

Easiest would be another Pierburg 2E3 off a 1.3 VW, of course. Easiest/best medium would be a new Weber DMLOL. Other second hand carbs from other similar engines can be used, fitting them may have challenges.

But at the end of the day, if you're intent on a single unit (single/twin choke) flushing visibly solid fuel down into a 4-1 manifold where the poorly mixed air/fuel is snatched about, you're never gonna have a very efficient car and you'll do well to get 45mpg on any run whatever you use.

Hows 45mpg not efficient?! Haha. How did you manage 60mpg?! That is really impressive! I'm still drawn towards the weber due to simplicity of the swap! People never believe much on the old internet. Especially if they haven't achieved it

the weber is a direct replacement and shouldnt be classed as a mod , id imagine you should own up to bike carbs though?

mine does 44mpg over a tank full of mixed driving with a dmtr

All my cars are standard. Well a better kind of how they should of been standard i think i will get the weber. But was seeing if there was any other options available!

I was into the 60's mpg with bike carbs on a 1.4, got ridiculed for the claim on here by people who hadn't any experience with my set up themselves, but there you go. Nobody needs proof that a 1.8T Golf can do 40mpg but a tiny self-regulating carb on each cylinder of a 1.4 in a car half the weight and it's not scientifically possible apparently, and i must've forgot how much petrol i was buying that week..

Easiest conversion to achieve though? No. And certainly not when going for economy like that.

Easiest would be another Pierburg 2E3 off a 1.3 VW, of course. Easiest/best medium would be a new Weber DMLOL. Other second hand carbs from other similar engines can be used, fitting them may have challenges.

But at the end of the day, if you're intent on a single unit (single/twin choke) flushing visibly solid fuel down into a 4-1 manifold where the poorly mixed air/fuel is snatched about, you're never gonna have a very efficient car and you'll do well to get 45mpg on any run whatever you use.

Who didn't beleive the MPG figures mikey?

Pretty much everyone

Here's one of the original ones: http://www.clubpolo.co.uk/forum/index.php?showtopic=110684

Claims were 80-90mpg ball park initially.

Got some serious stick! Haha!!!

That was quite some fail.. But i went on to pay a bit more attention and consistently had angels filling my tank for me in the middle of the night. Which was nice.

Jesus that old thread is hilarious. Dans animal picture topped it off haha

You can make bike carbs use next to no fuel if you set them up lean, at like 70mph I can literally just touch the throttle pedal, and you can happily cruise at like 17:1.

I never go for MPG because it's setup not to melt itself and to perform.

80mpg maybe a bold claim, but 60mpg is believable for sure

Lean em out, get water/meth injection. Test the results!

Nope - pointless ! If I wanted good MPG I wouldn't have fitted bike carbs to a car. Or have a petrol for that matter lol

Jesus that old thread is hilarious. Dans animal picture topped it off haha

Love that picture too, off to post it in the 1 litre turbo thread...

You can get a service kit for the Pierburg 2e3 from dellorto.co.uk.

But for the eager auto-choke, when working properly, they are very fine carbs.

But there is lots of electric and diaphragm trickery to achieve that fine state and consequently lots to go wrong.

So they have a poor reputation.

Weber DMTR and DMTL are far simpler.

DMTL has an economizer jet.

Second hand examples are usually okay and could be combined with a new fitting kit.

Some people struggle with DMTL secondary stage being flat though.

Playing with other jets is easy and comparatively cheap.

Other suggestions:

• The Pierburg 2e3 from the GK engine. This has 22 primary, 26 secondary chokes (occasionally on German eBay).

  This helped the high compression Dignition equipped engine achieve official 5.7 l/100km at 90kmh

  (49.5mpg at 56mph) consumption.

• The Pierburg 2e2 from the Golf 1.6 or 1.8 Mk2. Complex again. Same chokes as the Pierburg for the GK, would need jetting down for the 1.3 (carburettor hospital for parts and ruddies berlin website for the jet specs)
• Weber DCD with 22/26 or 23/25 chokes.

Oh yes, all carbs are a compromise never perfect.

At light loads cruising at 40-50mph about one third of the mixture entering the cylinders is still in liquid state.

At higher loads and lower manifold vacuum pressures only about one half of the fuel has been evaporated by the time it enters the cylinder. With a distributing and poorly heated manifold and single carb the charge may become a stream to a particular cylinder on the floor of the manifold. Independent carbs or even venturis per cylinder can help alleviate this (why we perform carburettor balancing on multi carb engines).

I understand motorbike carbs also have slides giving variable demand based venturi size or exposed needle or something so they are more advanced.

But an injection system can use closed loop feedback to exactly tailor the amount of fuel entering the engine as fine spray to the demand.

That's perhaps a conversion too far.

what carb would my 1990 mk2 saloon have? and what kind of mpg would i be looking at? its currently runnning at about 30mpg, could it be that my main journey to work is only 2 and a half miles away and take only 5 minutes, so the auto choke is still on and using more fuel because its not warmed up?

1.3 will have a pierburg 2e3,

though 1990 is on cusp of change to injection?

Only 2.5 miles in a car from cold - cycling would improve your mpg.

1.3 will have a pierburg 2e3,

though 1990 is on cusp of change to injection?

Only 2.5 miles in a car from cold - cycling would improve your mpg.

It's a 1043cc and definitely not injection. Pretty sure its a pierberg but not sure which one. And I would love to cycle but its a really dangerous bit of road and all up hill and I value my like.

Downhill on the way back, but yeah -Devon hills - I understand. Probably very wet at the moment too if its anywhere near Buckfastleigh.

1043cc

Single choke Pierburg 1B3 then.