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Is replacing the 1800 dualcarb a bad idea?

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General_Failure Use your head, don't abuse it!

1,036 posts · joined Jun 2004 ·

#453703
G'day.

This is something I have been contemplating for a while. Removing the stock dual carbs from my 1800 van, and fabricating an assembly to plop a dual throat of roughly the same flow on in the middle.

The main reason I've considered this is reliability. The carbies have always been a nightmare to me. Especially the central idle circuit.

No matter how many times they have been adjusted, cleaned etc, they just never work right...well for long anyway.

If I were to put on a single centralised carby would acceleration lag be noticable, because of the extra distance?

Also, would icing up be a problem?

I Know I'd love to retrofit EFI, but I'm clueless with post carburettor engines, and the dollarific value of EFI is a little rich for my poor old van.

Is fitting a single carb a completely stupid idea, or does it have any merit?
If at first you don't succeed. Build, build again.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 ·

#454113
people "have" fitted progressives

BUT.............................

you live in Vic??? and icing will be a problem because of the longer runs.
A type 4 motor cant get heat and you will have no pre heaters.

I dont belive in those electric heat tapes that wrap around manifolds.

personally i would invest $750ish in a set of webers and get rid of the stock carbs.
Futue te ipsum!!!

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#454186
I think you will find with your origional solex Carbies that there sucking air through the throttle shafts, get these replaced / rebushed and you wont have any probs with the idle

replacing the whole set up would be better with webbers but you will be paying lots more money
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MickH Hairy Gutted Sloth

3,389 posts · joined Sep 2003 ·

#454218
What Dave said....you missed an EFI setup off a porsche frrom ebay...sold for $100 or there abouts COMPLETE....of a 1700.Included ecu etc..would have been ideal.Oh well...
tssnq.com.au

General_Failure Use your head, don't abuse it!

1,036 posts · joined Jun 2004 ·

#455043
Thanks everyone!

Shame about the ebay porsche setup. That would have been nice. I don't mind a bit of work so get something happening. Especially if it's cheaper.
If at first you don't succeed. Build, build again.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.