Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> Carbs, One or two?
Maine914
post Aug 27 2003, 09:36 PM
Post #1


Member
**

Group: Members
Posts: 99
Joined: 30-January 03
From: Maine
Member No.: 215
I have dual double-barrelled 40 mm Dellorto Carbs on a 1974 2.0 engine. It has been suggested that it too much for the engine, and that I replace should them with one double barrelled Weber. Anybody have any experience or thoughts on this suggestion?
Thanks
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
seanery
post Aug 27 2003, 09:57 PM
Post #2


waiting to rebuild whitey!
***************

Group: Retired Admin
Posts: 15,852
Joined: 7-January 03
From: Indy
Member No.: 100
Region Association: None
(IMG:style_emoticons/default/bs.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brad Roberts
post Aug 27 2003, 10:02 PM
Post #3


914 Freak!
***************

Group: Members
Posts: 19,148
Joined: 23-December 02
Member No.: 8
Region Association: None
Whoa.. thats a good one. The person must want your carbs ?? Did they offer to buy them from you cheap ?? LOL

You can buy chokes and install them. Most 40's are pretty good straight out of the box. Look down inside them and see if they have 36mm chokes or 38mm. It will be stamped into a shiny aluminum piece. You'll have to pull the air cleaners off and look down inside with a flashlight or something.


B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
MarkV
post Aug 27 2003, 10:04 PM
Post #4


Fear the Jack Stands
***

Group: Members
Posts: 1,493
Joined: 15-January 03
From: Sunny Tucson, AZ
Member No.: 154
Region Association: None
(IMG:style_emoticons/default/agree.gif)

Have you ever driven a 914 w/ a progressive 2 barrel?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
echocanyons
post Aug 27 2003, 10:36 PM
Post #5


Advanced Member
****

Group: Benefactors
Posts: 2,094
Joined: 24-December 02
From: Bay Area, CA
Member No.: 7
Region Association: Central California
Hey wasnt the progressive weber with the 2 barrell the same carb on the pinto that was notorious for catching on fire?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brad Roberts
post Aug 27 2003, 10:39 PM
Post #6


914 Freak!
***************

Group: Members
Posts: 19,148
Joined: 23-December 02
Member No.: 8
Region Association: None
Mr. Thorsen nails it on the nose.


B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Bleyseng
post Aug 27 2003, 11:52 PM
Post #7


Aircooled Baby!
**********

Group: Members
Posts: 13,034
Joined: 27-December 02
From: Seattle, Washington (for now)
Member No.: 24
Region Association: Pacific Northwest
The single carb works well on anything but a flat four engine. The long steel runners condense the air fuel mix on the sides, leaning out the mix.
Duals have a short straight shot into the intake like the FI, the only way to fly.

Geoff
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisReale
post Aug 27 2003, 11:59 PM
Post #8


Sleazy
****

Group: Members
Posts: 2,665
Joined: 20-January 03
From: San Francisco
Member No.: 176
I have a single barrell on my Subaru. Works great. Its a flat four :finger2: :finger2:
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dave Cawdrey
post Aug 28 2003, 12:05 AM
Post #9


Dumbo going poop, Daddy :)
***

Group: Members
Posts: 818
Joined: 22-January 03
From: Seattle, WA USA
Member No.: 182
Get some Weber's like mine. 40's w/ choke and return nipple


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brad Roberts
post Aug 28 2003, 12:09 AM
Post #10


914 Freak!
***************

Group: Members
Posts: 19,148
Joined: 23-December 02
Member No.: 8
Region Association: None
The Dells have bolt on banjo fittings for the fuel. One side has a dual feed like that one pictured. You can unbolt them and place them on either carb. Or buy two fittings with single inlets and use a tee inline elsewhere.

B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Bleyseng
post Aug 28 2003, 08:39 AM
Post #11


Aircooled Baby!
**********

Group: Members
Posts: 13,034
Joined: 27-December 02
From: Seattle, Washington (for now)
Member No.: 24
Region Association: Pacific Northwest
Chris R, I am sure that the Subie has a nice cast aluminum manifold with hot coolent running thru it to preheat the intake charge. The standard type 4 single carb doesnt have that at all. The steel pipes will actually frost over in the winter outside of SoCal climates.
Geoff
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Maine914
post Aug 28 2003, 06:20 PM
Post #12


Member
**

Group: Members
Posts: 99
Joined: 30-January 03
From: Maine
Member No.: 215
I'll hold onto them. Mine don't seem to have chokes at all. Just secondary and primary venturis.
Thanks
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Racer
post Aug 28 2003, 06:38 PM
Post #13


Senior Member
***

Group: Members
Posts: 787
Joined: 25-August 03
From: Northern Virginia
Member No.: 1,073
Region Association: MidAtlantic Region
QUOTE(Maine914 @ Aug 27 2003, 07:36 PM)
I have dual double-barrelled 40 mm Dellorto Carbs on a 1974 2.0 engine. It has been suggested that it too much for the engine, and that I replace should them with one double barrelled Weber. Anybody have any experience or thoughts on this suggestion?
Thanks

Who suggested that? Must be another 914 owner looking for to upgrade!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Maine914
post Aug 29 2003, 06:15 PM
Post #14


Member
**

Group: Members
Posts: 99
Joined: 30-January 03
From: Maine
Member No.: 215
Actually, it was a mechanic.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tryan
post Aug 29 2003, 06:18 PM
Post #15


Senior Member
***

Group: Members
Posts: 553
Joined: 22-January 03
From: smokey mountains gatlinburg tn
Member No.: 184
find a new 'mechanic'.

duals are a bear to tune, but the 32/36 thing is a piece of crap on a teener. fine for a pinto or toyota, but you'll never have a true teening experience with that carb.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 11th May 2024 - 05:30 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...