What carbs

[Robsey]

This is something that interests me too.
Having a 1983 1.9 wasserboxer and Pict 34, I was under the impression that these were very inefficient.

I had wondered myself whether to fit a more efficient Pierburg 2E3 instead or to go for one of the Empi set-ups.

I presume that most "34" carbs will suit as long as they are jetted and tuned up correctly.

I have no experience of Dellortos.
I even thought about some balanced motorcycle carbs, but setting them up correctly is beyond my range of experience.

I am sure that the most important consideration is for the best possible fuel economy with an ability to progress at a decent speed / rate of acceleration.

Regarding brakes... aren't they more or less the same part numbers regardless of engine size.?

I would expect the drive format (2wd / synchro) and year of manufacture (before or after 1985) is the main difference here.

[Robsey]

Regarding negative comments -

It is sensible to mention possible downsides to any proposed action.

I'd rather ask a negative point, than dive in headlong and regret my foolish actions later.

[CovKid]

Dellortos aren't magic carbs though, they're just a sensible(ish) solution. With the shorter inlets, petrol gets squirted virtually straight in to the barrels rather than round the bend of an inlet manifold and thats the main advantage. Many race-tuned engines also have polished ports to aid fuel delivery but to be honest, providing there is enough room and suitable adapters, I imagine quite a few carbs could be employed. Its more a matter of room and why Dellortos have proved popular. I just couldn't afford the fuel bill myself and if I did want better performance, I wouldn't be using the old flat four as the baseline.

[jason k]

OK, as previously said, the brakes need no upgrade as they are essentially the same on a 70bhp cu or jx powered van as they are on a 112 bhp DJ engined van so your quite safe adding a few horses to a 70 bhp van. Now then Are you still surprised? Or looking for another downside that isn't there?

Another myth is increased petrol consuption. Delortos when set on a rolling road actually increase mpg not decrease as some would lead you to believe. OK the first week or so you hoon it about revelling in that induction note won't be great but once that's out of your system you'll soon reap the benefits.

Stock twin solex carbs are inefficient at best. Delortos allow precise tuning of each cylinder increasing volumetric efficiency and thereby the power of the motor. The short inlet tract also aids this.

These are the single best addition I ever fitted to my Aircooled van. Unless you've been in a van with these on you just can't believe the difference they make.

By all means stick with your stock set up if it floats your boat but these truly are the way forward.

[kevtherev]

I witnessed a long-stroke DJ with dells

awesome sound and pulled very well.
VW fitted what was available at the time, with an eye on econmy as these vans were intended as workhorses not racehorses

[jason k]

Newts old Aircooled on dells was a flyer too kev.

[JamesKT25]

Am i restricted by an LPG system as to what carb I can run?

[kevtherev]

Talk to Steve at gasure
he will advise you better on that topic

[JamesKT25]

I need to trek over to him at some-point, I know he fitted the kit around 6 year ago with the previous owner and it will most likely need a service...

[rosynickdawn]

Yes that is my problem to as i have go the gasure lpg on my van. I will phone the tomarrow and let you know. Got the chance of some 34ict webbers bolt straight on. Straight of a cu engine too

[rosynickdawn]

Spoke to gasure today and he said stick with the solex as there is too much vacuum with the webber and delorto carbs

[vanisveryrusty]

Nothing wrong with well tuned and maintained Solex.
I'm lucky, there is a carb specialist local to me who makes any old carb do its job better than when it left the factory.
Hence my view.

deja vu

[kevtherev]

Nothing wrong with well tuned and maintained Solex.
I'm lucky, there is a carb specialist local to me who makes any old carb do its job better than when it left the factory.
Hence my view.

deja vu

I think he meant to work with LPG.

[vanisveryrusty]

I had an Aircooled with an LPG/Petrol setup and found the Solex to be fine on both the LPG and Petrol, once they were overhauled and correctly adjusted.
Be sure to run on petrol sometimes also.
LPG can varnish up the insides of the carbs.

Good to see that the much maligned Solex are flexible enough to run on petrol or LPG, unlike the Dellorto,which appear unable to show the same adaptability being suited only to petrol.
Hence my original comment, which was made for that very reason:
"Nothing wrong with well tuned and maintained Solex "

I am struggling to grasp how " too much vacuum" would only apply to the LPG setting though.
When you flick the switch from LPG to Petrol and vice versa, the vacuum doesnt magically change.
So what works with one should work with the other, or have too much vacuum for either......................
Petrol is more forgiving than LPG if your carbs are out of adjustment or mis matched to your engine though, its more combustable than LPG.
Hence the common practice of starting on petrol then flicking over to LPG once its ticking over.
Having said that, mine was OK starting on LPG with the Solex.
Which at half the price of petrol, was more than compensation enough for having to do without the wonderful Dells

[Elsaetka]

Just on the back of this, what model Dellortos fit a T25 DG? is it DHLA 40 H ?

Plus what specific maniold is required? I'm having trouble locating specifics as my standard carb is causing some issues.