WEBER 45 CONVERSION

Hi. Im new to this and has my mk1 cab gl 1.6 since may. Its a b reg manual. I want to convert to a single 45 dcoe or something similar for slight increase in power and sound. Can anyone give me advice on what alternatives there are as i really cant find an inlet manifold for a single dcoe conversion only a twin. Im not too keen on a twin because i've heard they drink too much fuel and they are very hard to set up. Is this true? Any advice on carb conversion would be really appreciated. By the way Ive already fitted a 421 stainless manifold and a jetex exhaust system. Everything else is stock.
Cheers guys

denis

Twins are not harder to set up, any rolling road tuner worth his salt can do it.
Youd have the benefit of one choke per port which is better for power as theres no interference with pressure waves from one getting into another.
If theyre sized right for the engine capacity and set up correctly then theyll only use as much fuel as your right foot demands and theyll give the best results you could reasonably expect from a carbed setup.

The single dcoe setup will have the side issue of needing a siamesed inlet manifold with the hassles that entails, forget all that and fit the twins if youre dead set on doing the conversion.

thanks mate. do you know anywhere you'd recommend to get them from. and how much would you say if reasonable to spend. never thought about the waves issue but totally know what you mean now you have mentioned it. thanks

Depends if you want new or used.

Ebay for used, webcon or dealer of theirs for new.

45's will be too large, 40's will be closer but id speak to Webcon ( weber suppliers) regarding what jetting youd need to get you up and running.
Be aware that on a rolling road session these would almost certainly be altered to get them running their best.

Pricewise, i have no idea what these go for these days.
bear in mind you may also use dellorto carbs ( very similar to weber dcoe).

Failing the webcon route try Euro carb for manifolds and the other bits for the twin 40 conversion.

Don't forget you'll need a new fuel pump, filter, and pressure regulator and the correct linkage for the carbs you choose.

If your looking for the twin carbs new, you won't get much change from a grand!

Twincarbs aren't easy to set up on an 8v golf as they are just about touching the fire wall on back of the engine bay, not good for getting a syncrometer in.

The single carb route doesn't mean siamesed manifolds, mine is the same basic design as the stock one bot has a 40 DHLA dellorto attached.

The manifold is a lynx M150, bought second hand from ebay, rare, but still out there.

You could try this place : http://www.racekit.co.za/page5.htm

Hope this helps dude

what kind of power gains would we expect if we compare.
my cab is a 1.6gl with pieburg at the moment. it has a ss 421 manifold and 2in jetex system. standard everything else. i want to upgrade the leads and coil not sure which ones are best.
what kind of power doyou think my car would push with the twin 40 as opposed to a single 40.
any ideas

It would all depend on condition of other areas of the engine and running gear. With a stock 1.6 engine you won't see much in the way of gains over the pierburg with either conversion.

It pains me to say this As I love carbs, but you'd be waisting a massive amount of money for very little gain.

I'm running the Dellorto on mine purely by chance, my pooburg broke and the conversion poped up on e-bay… fate?? I also run a kent gs2 fast road cam.

I don't think i've spent more than 350 green on my engine, I've been lucky.

Best bet would be the direct replacement weber carb, a replacement preformance filter element and a good service with top quality parts.

If power is the desired result, then a 16v or 20vT is the way forward.

Other than that, decent suspension and brakes will help the car go quicker if that make any sense??

yeah ive gotthe car dropped and stiffer its the first thing i did or else it drove like a boat at  sea.
so with the weber direct replacement there is improvement to be had then. it makes sense as i dont want a powerhouse just something that pulls more than it does at the moment. with the weber replacement can you fit on the same k and n filter which sits on top of the carb.

i have complete 45 dellerto carb outfit just bolt on mint ,open to tidy offer as this is very rare was on 2000 big block with trs head producing 130 bph at the wheels.

kdan what is it a twin or single and offer around what range. with or without manifold and linkages and filters

got single 45 all complete just bolt on in perfect working order,very rare would sell if i had a good offer?