The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
It is currently Thu Mar 28, 2024 11:43 pm

All times are UTC




Post new topic  Reply to topic  [ 12 posts ] 
Author Message
 Post subject: New 40 DCOE Webers.
PostPosted: Thu Dec 02, 2021 8:03 pm 
Offline
TDC Kent Area Organiser
User avatar

Joined: Thu Mar 07, 2019 6:00 am
Posts: 137
Location: Kent
Gents.

I am thinking about putting new 40’s on my Sprint over the winter.

Is there an exact model number for 40’s that are best suited to a Sprint ?

Also if anyone knows the best place to get a deal on a pair would be really appreciated.

Cheers.

Richard.

_________________
Sprint, ;- DBL 532V


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Thu Dec 02, 2021 8:43 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!
User avatar

Joined: Thu Oct 06, 2011 1:13 am
Posts: 3173
Location: The continent
DCOM are better for streetuse than the DCOE. The DCOM have five and better suited progression holes and is more usable on the street. The internals and body are the same as the DCOE. The DCOE is fabricated for competition use originally and the DCOM were standard equipment on some cars like the Peugeot 205 GTI.

Jeroen

_________________
Classic Kabelboom Company. For all your wiring needs. http://www.classickabelboomcompany.com


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Fri Dec 03, 2021 10:04 am 
Offline
TDC Member
User avatar

Joined: Tue Oct 03, 2006 5:48 pm
Posts: 8446
Location: Winscombe, North Somerset, England
Are there any advantages to installing 40s on a standard Sprint engine, apart from the intake noise?

_________________
Sprintless for the first time in 35+ years. :boggle2: ... Still Sprintless.

Engines, Gearboxes, Overdrives etc. rebuilt. PM me.


1997 TVR Chimaera 450


Image


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Fri Dec 03, 2021 11:39 am 
Offline
Future Club member hopefully!
Future Club member hopefully!

Joined: Sat Apr 26, 2008 2:52 pm
Posts: 242
Location: Newcastle upon Tyne
If I remember correctly, the cross sectional area of the throttle opening on 40’s is the same or less than the std HS6 1 3/4” SU’s

45’s give that bigger throttle opening area and generally are seen as an upgrade. But not advised unless other mods are made along side, fitting them.

And a 205 GTI had injection….. 205 Rallye (not the Uk one) was a homologation special, and had 40’s as std. would love one!!

_________________
1976 Taihiti Sprint
2020 Jaguar iPace ev400
2011 Landrover Defender pickup - twisted :D
2023 Porsche 911 Carrera T Manual!!
2021 Toyota Yaris GR-Four
2011 Super Skoda Fabia 1.2 S HTP

Gone but not forgotten 2008 BMW M5 (E61) Touring (George, as in Best, as it likes a Drink) to be replaced soon...... Epic epic car


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Fri Dec 03, 2021 4:48 pm 
Offline
TDC Kent Area Organiser
User avatar

Joined: Thu Mar 07, 2019 6:00 am
Posts: 137
Location: Kent
Cheers Gents.

In response.

The car is already fitted with 40s but they are believed to be needing a major overhaul. I was going to take the manifold off anyway as I want to have it blasted and cleaned and was going to fit a 123 dizzy before the spring.

The rest of the engine is tip top so a straight change over for new 40s was the plan. Sell the old ones to recover a bit of cash.

I could go back to SUs but the car does run already on a 40s set up so hence new ones.

Any advise on the particular model of the Weber would help or the jet set up,

Any other advise gladly accepted.

Cheers.

Richard.


Attachments:
D2178934-F1F7-4FBD-9788-CD02DC5452B7.jpeg
D2178934-F1F7-4FBD-9788-CD02DC5452B7.jpeg [ 119.84 KiB | Viewed 557 times ]

_________________
Sprint, ;- DBL 532V
Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Sat Dec 04, 2021 7:13 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!
User avatar

Joined: Thu Oct 06, 2011 1:13 am
Posts: 3173
Location: The continent
Quote:
If I remember correctly, the cross sectional area of the throttle opening on 40’s is the same or less than the std HS6 1 3/4” SU’s

45’s give that bigger throttle opening area and generally are seen as an upgrade. But not advised unless other mods are made along side, fitting them.

And a 205 GTI had injection….. 205 Rallye (not the Uk one) was a homologation special, and had 40’s as std. would love one!!
40's have almost twice the area...

Jeroen

_________________
Classic Kabelboom Company. For all your wiring needs. http://www.classickabelboomcompany.com


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Sat Dec 04, 2021 7:16 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!
User avatar

Joined: Thu Oct 06, 2011 1:13 am
Posts: 3173
Location: The continent
Quote:
Are there any advantages to installing 40s on a standard Sprint engine, apart from the intake noise?
More hp achievable because all situations are adjustable and far better response. Su's are a delay carb like all the CV type carbs.

But setting up a weber isn't a few hours job. Anyone who can isn't doing it properly. Rolling roads are declared holy but most users are like me in my fancy new kitchen not knowing how to cook.

Jeroen

_________________
Classic Kabelboom Company. For all your wiring needs. http://www.classickabelboomcompany.com


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Sun Dec 05, 2021 10:15 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!

Joined: Mon Dec 03, 2012 6:04 pm
Posts: 1549
Quote:
Quote:
Are there any advantages to installing 40s on a standard Sprint engine, apart from the intake noise?
More hp achievable because all situations are adjustable and far better response. Su's are a delay carb like all the CV type carbs.

But setting up a weber isn't a few hours job. Anyone who can isn't doing it properly. Rolling roads are declared holy but most users are like me in my fancy new kitchen not knowing how to cook.

Jeroen
Well that is the problem with most mods, they aint bolt on, if you change one thing you generally have to change something else to see the benefit. Then you have to set it up properly.

The cheapest way to get more power is probably a good service and replacing any worn parts/hoses. I would put good money on most classic cars producing far less power than they did when they left the factory.


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Mon Dec 06, 2021 3:03 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!

Joined: Tue Jan 10, 2012 12:39 am
Posts: 516
Quote:
Cheers Gents.

In response.

The car is already fitted with 40s but they are believed to be needing a major overhaul. I was going to take the manifold off anyway as I want to have it blasted and cleaned and was going to fit a 123 dizzy before the spring.


Cheers.

Richard.
How do you plan to fit the 123 dizzy?
Its something I would like to do but sourcing an adapter is the problem.

_________________
Russ Cooper
Dursley
UK


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Thu Dec 09, 2021 10:22 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!

Joined: Mon Mar 11, 2013 10:18 pm
Posts: 54
Location: bucks
Quote:
Quote:
Cheers Gents.

In response.

The car is already fitted with 40s but they are believed to be needing a major overhaul. I was going to take the manifold off anyway as I want to have it blasted and cleaned and was going to fit a 123 dizzy before the spring.


Cheers.

Richard.


How do you plan to fit the 123 dizzy?
Its something I would like to do but sourcing an adapter is the problem.
Same for me!

_________________
1970 Triumph 2000 Estate w/ RV8
1980 Triumph Dolomite Sprint
2003 Holden Ss Ute
1969 Dodge Charger
1973 Triumph Stag
1961 Standard Atlas


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Sat Dec 11, 2021 5:28 pm 
Offline
TDC Kent Area Organiser
User avatar

Joined: Thu Mar 07, 2019 6:00 am
Posts: 137
Location: Kent
Hi Gents

In terms of the dizzy 123 I have been in discussions with Leen at the 123 Ignition Shop in Holland. At the present I am going to send my old distributor which they will use the old gears from, or I could provide a new set of distributor gears from Rimmers.

They will then convert a brand new 123 Bluetooth distributor. Please see below Leens explanation.

We wil use the gear of your old distributor or the new gear from rimmers. We can adapt the rest of the 123 ignition so that you can mount it without the need of extra adaptor plates. (so incl mounting bracket\plate) Or we can use the bottem of your current distribtor and combine it with the top of a 123 ignition.
You can choose what option you like best.

Cost for the above, €700.00

Not cheap but if plug and play I think it’s a reasonable one off cost.

Cheers.

Richard.

_________________
Sprint, ;- DBL 532V


Top
   
 Post subject: Re: New 40 DCOE Webers.
PostPosted: Sat Dec 11, 2021 9:38 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!

Joined: Mon Mar 11, 2013 10:18 pm
Posts: 54
Location: bucks
Quote:
Hi Gents

In terms of the dizzy 123 I have been in discussions with Leen at the 123 Ignition Shop in Holland. At the present I am going to send my old distributor which they will use the old gears from, or I could provide a new set of distributor gears from Rimmers.

They will then convert a brand new 123 Bluetooth distributor. Please see below Leens explanation.

We wil use the gear of your old distributor or the new gear from rimmers. We can adapt the rest of the 123 ignition so that you can mount it without the need of extra adaptor plates. (so incl mounting bracket\plate) Or we can use the bottem of your current distribtor and combine it with the top of a 123 ignition.
You can choose what option you like best.

Cost for the above, €700.00

Not cheap but if plug and play I think it’s a reasonable one off cost.

Cheers.

Richard.
I thought this route was fraught with all sorts of problems. At least thats what i recall when researching it. Conclusion seemed to be "avoid".

_________________
1970 Triumph 2000 Estate w/ RV8
1980 Triumph Dolomite Sprint
2003 Holden Ss Ute
1969 Dodge Charger
1973 Triumph Stag
1961 Standard Atlas


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 12 posts ] 

All times are UTC


Who is online

Users browsing this forum: AhrefsBot [Bot], Amazon [Bot], Bing and 23 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited