Single Carb Conversion 2 Barrel Progressive Holley,Weber 740 carb

[dan filipi]

Boy going single is looking better and better.

I have my 83 rack out.
Was planning to only swap out the bad #2 carb so I pulled the air cutoff out because they are from Randakks kit and there's 2 holes in it.
One about 2 mm's long next to the metal ring, the other is a pin hole near the center of it.

I hadn't planned on having to open the others but now I have to check them.

I know these were from the first generation randakk kit. Does anyone know if these were improved in the second go round?
I sent Randall a pm but haven't heard back yet.

 

[Jungo]

westgl » Sat Sep 14, 2013 9:29 am[/url]":1bkuovto]
Here is a adapter, $15.00 + shipping

1.5" tall adapter, using a shorter air filter may work, but you will need to verify

This will fit the VW manifold, I dont know if it will work for your carb.

If they could e-mail you a dimensional drawing of the single carb. mount for this or any Adapter that you choose, then you can check it against your carb.

Call them to find out

Please verify that it will work for you.
Companies description of part below and a link to their site.

Adapter 1 BBL to 2 BBL Fits Carter / Weber and Weber 32/36

(1.8" tall) For use with the Carter/Weber Progressive 2 BBL Carb or Weber 32/36 carbs we sell or the Holley/Weber Progressive 2 BBL carb we no longer sell.

(We need to know what carb you will be using so we include the correct gaskets and bolts.) (Note: This does NOT fit Rochester carbs)

LINK

https://stoveboltengineco.com/catalog/st ... id=1222023


==========================================

Thank you so much for share West. k: For $15 I can take the risk. I'll send an email with my carb specs. Again, thanks.

 

[mcgovern61]

I remember back in the day that my car engines had "automatic" chokes. When I took it off, it turned out to be nothing more than a copper coil that expanded with heat as the engine warmed and would turn the choke accordingly. Obviously, when the engine was warm, the coil stayed expanded and no choke was needed.

Just something to add to the mix.

 

[westgl]

Dan

How long ago did you install your Randakk carb kit installed?

Mine was installed 2 years ago, i'm not sure about different generations, or which gen mine is.

dan filipi » Sat Sep 14, 2013 7:03 am[/url]":1sq4bocf]
Boy going single is looking better and better.

I have my 83 rack out.
Was planning to only swap out the bad #2 carb so I pulled the air cutoff out because they are from Randakks kit and there's 2 holes in it.
One about 2 mm's long next to the metal ring, the other is a pin hole near the center of it.

I hadn't planned on having to open the others but now I have to check them.

I know these were from the first generation randakk kit. Does anyone know if these were improved in the second go round?
I sent Randall a pm but haven't heard back yet.

 

[westgl]

Checked for leaks, No leaks.

I am working on the Cold start procedure

This is the best so far;

4 pumps of the throttle.

Each Pump of the throttle is a

Open throttle (then count) one thousand, then close throttle. Repeat a total 4 times, then start, and Hold engine at 2k for 30 sec. or so.

Took bike for a cruise, no high speed at all Normal day to day riding, just a nice leisurely ride at all posted speed limits.

Bike is just as nice as it can be, I swear that it just keeps getting better, and better.

Engine was Very smooth, Trans shifted very smooth,

That said, I did put in some ATF, 1/5 (1/2 quart) (thanks Slabghost for the amount) oil out, 1/2 quart ATF in, balance (4 ounces) in the gas tank.

Before ride, I had engine at a 900Rpm idle, after ride noticed that engine idled at 1300 rpm, freed up engine 400 rpm at idle.

While i was out on the ride, went 30 miles, pulled over this was a half way point, I check the bike over while it was idling.

Reached under the VW manifold felt it, it was ambient temp, not cold any more, and the Heater/support bracket was hot, so it is transferring heat to the bottom of the VW manifold

 

[westgl]

OK, I am going to call this a fluke,

First Tank, fuel Mileage.

This has to be wrong.

It cant be right.

I am going to dis regard this number and wait till next tank of gas

As much as i was into the throttle, this cannot be right

 

[Jungo]

westgl » Sat Sep 14, 2013 6:23 pm[/url]":19ms644f]
Checked for leaks, No leaks.


Took bike for a cruise, no high speed at all Normal day to day riding, just a nice leisurely ride at all posted speed limits.

Bike is just as nice as it can be, I swear that it just keeps getting better, and better.

Engine was Very smooth, Trans shifted very smooth,

Every time I read a post like this, I start to dream of the enterprise and its single carb. I'm desperate.

 

[westgl]

$15.00 is pretty cheap, I may just buy one myself to test my 30pict1 and 34pict3

Jungo » Sat Sep 14, 2013 8:42 am[/url]":30z8zhh0]

westgl » Sat Sep 14, 2013 9:29 am[/url]":30z8zhh0]
Here is a adapter, $15.00 + shipping

1.5" tall adapter, using a shorter air filter may work, but you will need to verify

This will fit the VW manifold, I dont know if it will work for your carb.

If they could e-mail you a dimensional drawing of the single carb. mount for this or any Adapter that you choose, then you can check it against your carb.

Call them to find out

Please verify that it will work for you.
Companies description of part below and a link to their site.

Adapter 1 BBL to 2 BBL Fits Carter / Weber and Weber 32/36

(1.8" tall) For use with the Carter/Weber Progressive 2 BBL Carb or Weber 32/36 carbs we sell or the Holley/Weber Progressive 2 BBL carb we no longer sell.

(We need to know what carb you will be using so we include the correct gaskets and bolts.) (Note: This does NOT fit Rochester carbs)

LINK

https://stoveboltengineco.com/catalog/st ... id=1222023


==========================================

Thank you so much for share West. k: For $15 I can take the risk. I'll send an email with my carb specs. Again, thanks.

 

[westgl]

If i yield 52 MPG,

On my second tank of gas I will know that the first tank was not a Fluke.

Lets Keep out fingers, toes, and eyes crossed.

 

[westgl]

Please Note:

I have had my bike running for ONLY a week with this Manifold, using Silicone Hoses as the runners.

I have No idea how durable they will be in the short or long run.

1 Week is not a very good Long term Test.

Modify at your own risk.

If my system fails, due to the runners Not holding up, i will use different runners.

But the bulk of the system is still there.

First thought of a back up plan, It may even be less expensive.

It involves me taking my Bike on a trailer to the local Muffler guy, with the New VW manifold and oem 4ea manifolds on the engine, so that muffler guy can bend tubes to fit,

There are only two tubes that the Muffler guy would have to bend the other two are a straight run,

Then I would have muffler guy mandrel bend up some 1-1/4ID steel tubes to fit what I have.

I may have to provide the correct tubing, but it is steel, once the outside is primed & painted it would be very durable.

This a Backup plan

 

[westgl]

I just came back from another ride on my New GL11-1

I say New cause it is NOT my same OLD bike that is was.

I wanted this test ride to be different than all other test rides I have done with my New GL11-S ( S for Single carb, & SUPER Bike) up to now.

The difference being,

I did not want anything to sway or cloud my judgement, and try something different in the way I have ridden this bike in past.

I wanted to see if all that I have admired about this new Single Oldwing is not just certain senses making me feel all the great things That I have about this bike since the conversion.

I used EarPlugs, the reason is the Carb sound is really cool, but If I take 90% of that sound away, and same foe wind noise, exhaust noise too.

Then that takes away the sense of sound, which can influence speed & comfort, then just feel the ride.

It did put me more in tune with the ride.

It rode as i thought that it did.

I have to say that GL11-S, is IT!!

During this test, I rode the GL11-S Not for speed, that is not what this test was about.

I rode this bike as a day to day ride, a trip down your favorite back road kinda ride, through the turns down the straight aways.

It is a EXCELLENT cruising bike, Better than most all muti carb'd bike's.

I have ridden quite a few, fuel injected bikes.

I am going to make a BIG statement here, My GL11-S, rides, & accelerates as good as some of the better Fuel Injected bikes, that i have ridden,

and much better, than some other other fuel injected bikes that I have ridden, cause not all FI bikes accelerate well.
some have a throttle that is very abrupt.

That said

The cold start, is more like a Carb'd bike, Warm start is like FI, it is instant

 

[joedrum]

well for reasons of the slanted ever changing word ...im stripping the single carb from hooch ....till I come across the stuff in a way that it wont be taken back ... im glad this started a whirlwind of single carb excitement ...im very happy about that ...

im parking in the building hooch till I get some parts ...I know exactly what I want ...went for ride today ..hooch ran strong ...hope to be back together soon ...

 

[westgl]

Ah schnitz!!!!!!!

That really Sucks!!!!!!!!

Did you break parts? I know hooch is a monster! under that much power any thing could happen

Or did someone ask for a given part back

 

[westgl]

I just ordered today another of the 32DFT progressive carbs.

For my 84' GL1200 Reverse trike winter project, that is coming up.

Tom The GM engineer, called me, when you place a order on line he will call you,

He called me today in regards to my order for another carb. he said he has been getting orders for this carb from motorcycle Goldwing owners.

I was very surprised he was there on a SUNDAY!!! Working?

Since Tom was a GM engineer Since the Corvair, I thought I would as him some questions.

We were talking about various things, like

Winter shut down/Hibernation.

Winterzation of bike for 4 months or more;

Tom said because of ethanol, best winterization, for the 32DFT and fuel system is, Turn Fuel valve to Off.

Then start engine, and let it run till engine runs out of fuel.
Then hand pump all fuel out of tank,
put fuel right into any vehicle that will driven during this time, to use it up, as it dose not store well.

We all know that problem.

Then start the riding season, get some fresh fuel in gas can, fill up tank at least half way, Pull fuel line off, I use a large syringe, fill with fresh gas, then push gas into fuel line to fill carb float bowl.

You are ready to start the new riding season

I let tom know that First tank of gas I got 52mpg
Tom said that if I am getting 52mpg we may be able to get up to 60mpg with some jet tuning.

These are not hard numbers and you mileage may very.

Tom said that the Off Idle Circuit could be adjusted to a smaller jet, in a efffort to get better fuel economy,
As well as the Mainjet, could be swapped to a smaller jet, and could be more fuel efficient.

The jets are very easy to access from the top of the carb. you do not have to open the carb.

Tom said keep going smaller till you feel power has dropped or surging, then go a jet size or two up.

He said the Off idle circuit usually works some where around say 25-35mph, at this point the Mainjet circuit is NOT yet working.

Tom said these 32dft carb. were specifically designed for fuel efficiency and strict smog requirements, That is one reason they run so well for a 1.6L 100-h.p. engine or less.

I like how easy the jets are to get at,

I may get a few jets from tom to see what can be done.

Tom said,
That the 32DFT carbs are very sophisticated, much more so than our stock carbs are

Tom also said that a Very vacuum gauge could, like a Magna Helic Vacuum Gauge could be attached to our intake manifold,

Read vacuum at7-8krpm wide open throttle if gauge is still at 0" carb and Air filter are big enough,

If vacuum gauge is at 1" that is expected,
If at 2" of vacuum or above it is too restrictive, try running a bigger airfilter to see if that does it.

If some people wanted to play around with it. jetting could be done but it really runs well right out of the box.

I may have to see if i can play with some jetting to see if i can get 60mpg, I very seriously doubt it, I dont think that the 52mpg first tank is real, i will have to do about 10 tanks of gas and average them out, to get a real number

 

[dan filipi]

This all sounds very promising West.

I've gotten confused with all the numbers being called out in this thread.
The carb I have is a 22 22. What do we know about it?
Is this a good choice?

 

[Dave_J]

The only rating that should be observed is the venturi size, 22/24 mm or 32/36 mm. Throttle blade or the top opening do not control the flow. Inside the throttle bore above the venturi are booster venturi and these can sometimes be swapped to adjust flow.

 

[westgl]

Dan,

Where did you get the Number 22/22 from?

How do you know it is a 22/22?

Is the number 22/22 stamped on the carb.body ?

dan filipi » Sun Sep 15, 2013 7:12 pm[/url]":yr5c389x]
This all sounds very promising West.

I've gotten confused with all the numbers being called out in this thread.
The carb I have is a 22 22. What do we know about it?
Is this a good choice?

 

[westgl]

If your carb. body has the numbers 22/22 stamped on the side.

Then you have the same carb. that I am currently running.

It is a 740 carb. in the configuration of 32DFT and is also 32/32mm bore carb that has 22/22mm chokes installed from the factory.
it came on the 81'-86' Ford Escort, Lynx, and fiesta, best years I believe are 81'-83' but all years will work.

Unless there is another configuration of carb.?

You can verify that by measuring the throttle butterfly plates.

That carb. is as sweet as BBQ Pork Meat, at least that is what kermit said about Miss Piggy, I dont know what part of her he was talking about

 

[westgl]

The largest 740,

I have is a 32/34DFT

It has 32/34mm throttle bores/butterflies, with 24/25mm chokes.

This carb is identical to the 32DFT physically/visually, a couple of minor details are different

The 32DFT was used on the 81'-83 Escort with a 1.6L engine, in 81' Output was 65 h.p. maybe slightly more. 85 Lbft of torque 83' put out 88h.p. & 94lbft torque 86' output was 108h.p. 114ft lb torque that was a 1.9L but this carb. is good up to 100h.p.+ on a high performance engine like ours
The 32/34DFT was used on a later Escort with a 1.9L engine

I have Not tried the 32/34DFT on my Manifold yet.

I have only tried the 32DFT so far, and i am liking it

 

[westgl]

I just came across some data on the 83' ford Escort top fuel mileage was 44-50mpg range.

So our lighter bikes could get that mileage, 52 mpg or better, that I achieved on my first tank, if the right hand would cooperate.

I am currently trying my best to do a conservative mileage test.

What I mean by conservative is no opening the secondary throttle bore, and trying to ride the posted speed limit.

My test May not be a real world test for most people.

Reason i say that Is i ride in a rural area. No stop signs, Just Go, that would yield me better fuel mileage, than in stop & go mileage testing