Gain extra benefits by becoming a Supporting Member Click here find out how!
Classic Performance Products Classic Parts
Ciadella InteriorsAmerican Auto Wire Classic Industries
Chevs of the 40sDanchuk Catalog
Hellwig Products IncPerformance Rod & CustomEcklers AutoMotive
Nu-Relics Power WindowsRain Gear Wiper Systems
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy



Username Post: Dual Carter set up        (Topic#338482)
Pmullins61 
Forum Newbie
Posts: 39
Pmullins61
Loc: Frankfurt, Germany
Reg: 04-17-16
08-22-16 08:57 AM - Post#2647024    

I have installed dual Carter carburetor set up on my 1950 216,
From cold the car is running great starts first time with the automatic choke.
When I stop switch off the engine and then re start before the engine is cold it smokes a bit and runs a bit lumpy like the choke is open, as these are really maintainence free not sure what the problem could be, interested if anyone had a similar problem.
Seen a lot of members have installed their fuel filters on the carb side of the engine is this important
As always appreciate the feed back



 
Bel Air kiwi 
"3rd Year" Silver Supporting Member
Posts: 4260
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
08-23-16 04:43 AM - Post#2647151    
    In response to Pmullins61

Hi PMullins, I like the filter before the fuel pump to protect it as well. If you put them on the manifold side, and many do, a leak could mean a fire. Not on the other side.
What color smoke? If Black then over rich, ergo too much choke. Some Auto chokes are adjustable.
Cheers Kiwi

48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

And when it was laid to waste, they called it peace.


Edited by Bel Air kiwi on 08-23-16 04:43 AM. Reason for edit: No reason given.

 
Pmullins61 
Forum Newbie
Posts: 39
Pmullins61
Loc: Frankfurt, Germany
Reg: 04-17-16
08-23-16 09:27 AM - Post#2647202    
    In response to Bel Air kiwi

Thanks buddy, currently the filter is on the distributor side, I leave it where is is, I think you are right with the choke needs a bit of tinkering and technique when starting after a run or I sit have another coffee wait for it to get cold then drive it, nothing serious, someone did mention the vacuum



 
Pmullins61 
Forum Newbie
Posts: 39
Pmullins61
Loc: Frankfurt, Germany
Reg: 04-17-16
08-25-16 02:02 AM - Post#2647551    
    In response to Pmullins61

Well it's not the chokes, checked these today
Getting some grey smoke when ticking over, still lumpy after rear start, think it could be the fuel pump delivery to much fuel at idle



 
Pmullins61 
Forum Newbie
Posts: 39
Pmullins61
Loc: Frankfurt, Germany
Reg: 04-17-16
08-25-16 10:36 AM - Post#2647609    
    In response to Pmullins61

Cleaned the carbs today and tried starting the car without touching the gas pedal, run it for 60k and then re started after 30 mins and did another 5k, running smooth as


Attachment: image.jpeg (186.11 KB) 91 View(s)




Attachment: image.jpeg (1.61 MB) 83 View(s)






 
Pmullins61 
Forum Newbie
Posts: 39
Pmullins61
Loc: Frankfurt, Germany
Reg: 04-17-16
08-25-16 10:37 AM - Post#2647610    
    In response to Pmullins61

Many thanks for all the advice



 
Keith_Knox 
Moderator and "16th Year" Gold Supporting Member
Posts: 5892
Keith_Knox
Age: 76
Loc: Napa, Ca USA
Reg: 04-02-00
08-25-16 08:44 PM - Post#2647718    
    In response to Pmullins61

Nice looking Fleetline.

1948 Chevy Fleetmaster Coupe Purchased 6/2010. Stock with rebuilt 52 216 installed May 1966.
1946 Chevy 1/2 ton pickup, stock. Purchased 11/18/17.
1962 Ranchero Purchased 4/2017 221 V8 Automatic.
2013 F150 Crew Cab


 
Pmullins61 
Forum Newbie
Posts: 39
Pmullins61
Loc: Frankfurt, Germany
Reg: 04-17-16
08-26-16 12:48 PM - Post#2647817    
    In response to Keith_Knox

Thanks Keith




 
Rustchips 
"7th Year" Silver Supporting Member
Posts: 1118
Rustchips
Age: 81
Loc: DFW Texas
Reg: 02-24-05
09-18-16 11:50 AM - Post#2652002    
    In response to Pmullins61

Sweet!
Cleon

1928 Chevy Coupe
1942 Chevy Special Deluxe Coupe
1955 Chevy Bel Air HTP
1970 El Camino
1990 F##d Mustang Convertible

Life is like a roll of toilet paper the nearer the end the faster it goes.


 
chronamyd 
Infrequent Contributer
Posts: 36

Loc: Nanoose Bay BC Canada
Reg: 05-02-12
01-05-18 02:23 PM - Post#2720134    
    In response to Rustchips

I am restoring a 54 150 bus. Coupe, I am putting in a 261 from a 55 pickup. I was thinking of going with the duel 2 brl Webbers from Clifford’s performance. Can I get some feedback on this carb set up. It is supposed to give better performance and milage and I think it is water heated. I am using headman headers thanks Dwight



 
Bel Air kiwi 
"3rd Year" Silver Supporting Member
Posts: 4260
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
01-09-18 06:18 PM - Post#2720606    
    In response to chronamyd

Hi Dwight. The sort of carburettion that suits your engine is dependent on what spec your 261 engine has.

If it is dead stock 261 it would normally have had a very slightly larger cam and carb than a 235, as built.

There are two things adding twin carbs can achieve.

The first is better fuel balance or distribution between the cylinders. The second is it is a way to supply more fuel to the engine but maintain low end responsiveness.

So you need to think about which you want as you almost always get the first but you may not need the second.
This is where you need to go to school on your engine and find out exactly what you have. Find out what head it has on it, what cam spec (Some 261's have the Vette cam.) etc.

Your engine may be specified for around 125 HP but may be up to 150- ish. So you need to work that out. Modern fuels will allow the use of a higher static compression ratio and if you plan this, some cam, and some porting this will change the carb sizing/jetting.

If it is staying stock and you want old school appearance then two old carters from 216" rebuilt as a pair would be good. Two old 235 Rochester's would be in my view a bit much for road use, as they are larger. But that is how the manifolds are supplied.

The modern Carter two barrels are actually a Weber design and a very good design. Because they are a two barrel progressive they are very sensitive however the manifolds require an adapter to fit them. personally I would like to see the manifold patterns updated so they actual bolt on directly as this would be nicer, but that's volume economics.

Be aware that the 261 has a different head and gasket from the near identical 235 and it must have the extra water passages to be viable.
Some folks call these "steam holes", but steam and destruction is what you get if they don't have them.

How much you need manifold heating depends entirely on your driving needs and climate but it is usually required.

Cheers Kiwi





48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

And when it was laid to waste, they called it peace.


Edited by Bel Air kiwi on 01-09-18 06:40 PM. Reason for edit: No reason given.

 
chronamyd 
Infrequent Contributer
Posts: 36

Loc: Nanoose Bay BC Canada
Reg: 05-02-12
01-10-18 06:42 PM - Post#2720718    
    In response to Bel Air kiwi

I will rebuild the 261 as it uses oil according to the fella I bought it from. The motor is from a 55 chev pickup and has solid lifters. I will rais comp. ratio if I have to replace pistons. I am more after fuel milage as long as the power doesn’t suffer too much. I want to put duel 2 brl Webber’s on a offenhouser man. I also have a set of headman headers. Then I want to put a t -5 from a S-10 along with S-10 4x4 rear end prob. 3:73 . What am I looking at to install the T-5 to the 261 with the 54 bell housing. Right now My gtoup and my wife and my self go to a lot of car shows in BC and western USA. We put on around 6000. Miles a year with my 64 Impala SS 409 Duel quad. I worked about 8 yrs doing a full restoration on it. Last winter 2016I replaced the M20 with a tremec tko 600 5speed Dwight



 
chronamyd 
Infrequent Contributer
Posts: 36

Loc: Nanoose Bay BC Canada
Reg: 05-02-12
01-10-18 06:44 PM - Post#2720720    
    In response to Bel Air kiwi

I will rebuild the 261 as it uses oil according to the fella I bought it from. The motor is from a 55 chev pickup and has solid lifters. I will rais comp. ratio if I have to replace pistons. I am more after fuel milage as long as the power doesn’t suffer too much. I want to put duel 2 brl Webber’s 32-36 ‘s. on a offenhouser man. I also have a set of headman headers. Then I want to put a t -5 from a S-10 along with S-10 4x4 rear end prob. 3:73 . What am I looking at to install the T-5 to the 261 with the 54 bell housing. Right now My gtoup and my wife and my self go to a lot of car shows in BC and western USA. We put on around 6000. Miles a year with my 64 Impala SS 409 Duel quad. I worked about 8 yrs doing a full restoration on it. Last winter 2016I replaced the M20 with a tremec tko 600 5speed Dwight



 
chronamyd 
Infrequent Contributer
Posts: 36

Loc: Nanoose Bay BC Canada
Reg: 05-02-12
01-11-18 12:30 AM - Post#2720756    
    In response to chronamyd





 
raycow 
Honored Member
Posts: 27574
raycow
Loc: San Francisco, CA
Reg: 11-26-02
01-11-18 02:35 AM - Post#2720758    
    In response to chronamyd

Adapter plates are available which will allow you to bolt the T-5 to your stock bellhousing. The advantage of this (instead of using a later bellhousing) is that you can keep your stock clutch linkage without having to do any modification on it.
http://www.hotrodworks.com/product/1940-1954-che vr...

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

2634 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.277 seconds.   Total Queries: 14   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 08:48 PM
Top