Dell'orta vs. Weber

My van is currently fitted with Weber ICT's which do what they need to do.

However, I read a post recently that suggested to a member to fit a pair of Dell's DRLA36.

This got me thinking. Are Dell's that much better than Weber ICT's and if so, what is it that makes them better?

 

The Dellortas,
In Majorca,
Don't sound like,
What they oughta.

 

Generally. Dellorto owners are much better looking than folk with Webers.

 

Silly sod

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It's true. Weber owners tend to break wind a lot and wipe their nose on their sleeve. Seen it many times

 

If you've got Dellortos, you can play a game of "What Bloody O-Ring Goes Where?"

"

 

..

 

2 different carbs.

ICT’s are dual single throats. The Dellorto version is the FRD

DRLA’s are dual twin throats.

The DRLA’s are a great carb, but will cost you to a bit to buy complete with linkages and manifolds.

If your ICT’s are running nice, leave them be

 

What he said ^. DRLAs are twin-barrel carbs (so you end up with one carb per cylinder), so you'll need all the mounting kit that goes with them.

 

Not to be played on a windy day when someone opens the shed door

 

Thankfully I didn't sneeze...

 

Do they offer a possible improvement with fuel economy?

 

In theory, yes, well set up with a very light right foot. The extra grunt soon negates this advantage, tho'

 

These are probably not the carbs for you.
TBH the mpg in a bus is so poor who really cares whether it's 20 or 23mpg?

 

Indeed. If you're interested in fuel economy, probably best not to drive a vehicle designed when 4-star was 35p a gallon.

 

Incidentally I did a rare tank full of all conditions driving a couple of weeks ago, half motorway, lots of 5-10 mile trips and some more local.
19.5mpg. I was quite happy for a 2.4l with Dells but if I'm honest I'd have been wondering why if it had been in the 15-17mpg range so I admit it does matter a bit. My mate Trev in the late 70's had a 4.2l Jag he could get down to 6mpg if he tried. It was written off when he was parked and some drunkard drove into the rear. Reason? The exhaust pipes cost more than the car was worth. I felt bad as he was just dropping me off after I'd hassled him for a lift home.

 

I know that if I floor my Peugeot diesel uphill I can get it down to 13mpg..

I dont drive a bus for fuel economy and I know how I can melt the engine by leaning out the mixture in the name of fuel economy.. 21-22mpg basically for the last 110k miles..

 

When correctly jetted for your engine size the 34ICT can be very frugal due to the low speed circuit.

Can only speak for my 1641 SP, which I find runs very well and gives a very good return.

I’m not one to check the mileage, I just stick in 30ltrs each time I get down to 1/4 level.

Here’s an excerpt from the link below


http://www.redlineweber.com/html/Tech/34_ICT_tunning.htm


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It was an idle enquiry as Dell's were mentioned elsewhere.

On my recent 900 mile trip to and around Wales, we averaged 23mpg and half of that was on small narrow roads with plenty of hills.

There's nothing wrong with the ICT's installed apart from cold starting can be a tad challenging due to the lack of choke (only lasts a few minutes).

 

I know my ICT's are not as good as a twin barrel carb but the simplicity means they are easy to maintain/tune.

@Marty SmartyCat before you consider a swap my recommendation would be to make sure you're getting the most from the setup you currently have. I'd read a bunch of stuff on jetting and copied the setup that had been recommended on line/ specialists etc but still wasn't happy with how it ran - so during covid i watched some youtubes on how to swap out the ict jets (its really easy) and added a lambda sensor/ afr gauge so i could see exactly what was going on whilst i was driving. I ended up re-jetting a bunch of times, just incremental changes but much happier now how it performs. If that sounds too complex then maybe find an old-school rolling road tuning place that knows about your carbs - get them to set it up as good as it can be.

I didn't do a before/after mpg check but i guess its not massively different, but it drives much nicer than before so that's all i wanted