Twin carby to single carby?

[Mandy Moo]

We're trying to get our '85 Rangie back on the road - mostly for general driving, but also off road when we get the chance.

If we change to a single carby will we see much difference in fuel consumption? Any recommendations for which system to change over to?

The other thing we want to do is put a manual gearbox in to replace the automatic. Any hints or tips will be much appreciated.

[scrambler]

Hi Mandy,

Advice from a non-technical person:

The only modification I know of to significantly cut fuel costs is to get gas installed. The single carb conversions are usually for Holleys which have their own problems, but big increases in fuel economy I haven't heard of. Even the EFI versions are fairly thirsty.

On the plus side, you're in WA so you get a State and a Commonwealth gas subsidy.

There's no point changing the carbs if you get gas - the conversion of the dual carbs is pretty common.

Manual gearbox - I haven't done or seen an auto-to-manual conversion but as the auto is cut into the manual box, I would expect it would be reasonably straightforward. I would think the bellhousing would be required but otherwise pretty straightforward. But someone here will have done the conversion one way or the other, so you should get more specific advice soon

Steve

[rangieman]

If you are running on straight gas id go single carby if you are going to run on duel fuel which is better for going away (more range) id stay with the twin setup
Dont put a holley they dont help with fuel savings unless you have plenty of money to get the car dyno tuned the holley is junk off road and again spend the $ to make them perform off road
So stay the twin carb set up in my opinion

[Pedro_The_Swift]

sorry for the non-tech reply,,
travelled a LOT in a 85-Hiline towing race cars,,

comfort plus

[loanrangie]

Despite what people say a properly setup holley will give little trouble and good economy, in my 81' 2 door rangie i used to get 21 mpg after fitting the holley and lots more power to boot. A weber off a falcon or a 2brl stromberg off a holden would be a good swap also. Auto to manual ? why would you ? i loved my 85' rangie even though it only had a 3sp auto in it.

[rovercare]

Despite what people say a properly setup holley will give little trouble and good economy, in my 81' 2 door rangie i used to get 21 mpg after fitting the holley and lots more power to boot. A weber off a falcon or a 2brl stromberg off a holden would be a good swap also. Auto to manual ? why would you ? i loved my 85' rangie even though it only had a 3sp auto in it.

Despite what people say??? they are crap offroad......that is a fact, even with extended breathers and sprung floats, they're much better, but still not good........Obviously some never get in the bush

[rangieman]

Despite what people say??? they are crap offroad......that is a fact, even with extended breathers and sprung floats, they're much better, but still not good........Obviously some never get in the bush

^^^^^^^^^^^ The man knows his stuff ^^^^^^^^^^^^^

[loanrangie]

Despite what people say??? they are crap offroad......that is a fact, even with extended breathers and sprung floats, they're much better, but still not good........Obviously some never get in the bush

Well i ran my rangie for 9 years with the holley and it never gave me any trouble even when doing rocky track in Toolangi
, who died and made you expert, how old are you again ?

[slipedisk]

I did a 465 Holley conversion for a Dentist up in QLD, we machined the carby tower flat drilled in the holes and mounted the carby studs and fitted the carby, from memory the only prob we had was setting up the choke and throttle cable. He said he had better fuel econ and better power.

[rangieman]

Well i ran my rangie for 9 years with the holley and it never gave me any trouble even when doing rocky track in Toolangi
, who died and made you expert, how old are you again ?

And your a expert on carbys nice to know