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 )

2 Pages V  1 2 >  
 Reply to this topicStart new topic
> If you had a weber progressive, would you buy these?, 'professionally rebuilt' weber 40IDF's
purple
post Aug 27 2007, 10:37 AM
Post #1


Pigeon feeders attract me
***

Group: Members
Posts: 938
Joined: 24-July 07
From: Houston, TX
Member No.: 7,942
Region Association: None
Well guys...It looks like this gentleman, from this forum, has a pair of hotness weber 40 IDF's rebuilt...what do you guys think?


What's involved with putting these on? http://www.914world.com/bbs2/index.php?showtopic=75459

Is the price good? I can get a whole new set for ~800 with linkages and full gaskets
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BarberDave
post Aug 27 2007, 11:14 AM
Post #2


Barberdave
***

Group: Members
Posts: 1,605
Joined: 12-January 03
From: Wauseon Ohio
Member No.: 135
Region Association: Upper MidWest
(IMG:style_emoticons/default/smilie_pokal.gif)

I have 40IDF on my 914 ,love them. Oh of course i went from the Boat Anchor weber progressive also. What a difference,wow, there was a stop along the way with
34 ICT's ,two small. Price on the 40's is fair,not a smokeing deal,but fair.

New is new, $250.00 difference ,does that buy piece of mind or guarantee I don't know. Me i would go with the new. Did I when I got mine NO,wish I did ,I spent
time and money to dial them in ,jet wise. My 2 cent,s probbly not worth that!

(IMG:style_emoticons/default/slap.gif) Dave
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
purple
post Aug 27 2007, 11:39 AM
Post #3


Pigeon feeders attract me
***

Group: Members
Posts: 938
Joined: 24-July 07
From: Houston, TX
Member No.: 7,942
Region Association: None
Do the 40's from 9motorsport come jetted for 914's?

i would personally like the peace of mind of new from 9motorsport
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
type11969
post Aug 27 2007, 11:45 AM
Post #4


Senior Member
***

Group: Members
Posts: 1,231
Joined: 2-December 03
From: Collingswood, NJ
Member No.: 1,410
Region Association: North East States
For 950, if you buy from aircooled.net, you get your carbs setup for free and I believe you can keep on swapping out jets for free to dial them in perfect for your engine (they used to do that, not sure if they still do):

http://www.aircooled.net/new-bin/viewprodu...020&cartid=
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
purple
post Aug 27 2007, 11:55 AM
Post #5


Pigeon feeders attract me
***

Group: Members
Posts: 938
Joined: 24-July 07
From: Houston, TX
Member No.: 7,942
Region Association: None
Damn, that's badass!

I bet I'd spend more in jets and shipping to get the right ones after getting the kit from somewhere else. And I know Jake knows what he's doing with these.

Now, about coming up with 1 M note....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
sww914
post Aug 27 2007, 12:13 PM
Post #6


Advanced Member
****

Group: Members
Posts: 2,439
Joined: 4-June 06
Member No.: 6,146
Region Association: None
After I got my 44's, I made 1 call to Fat Performance in So Cal. I explained to them what I already had in my carbs, what size cam, valves, pistons, compression, etc., and they sent me a set of jets with an optional set of idle jets to try. It runs perfect!
Unbelievably good! There's nothing like blasting past well prepared 911's on the straightaway in a 914-4!
Fat performance has been building racing T-4 engines for as long as some T-4 engine builders have been alive.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
So.Cal.914
post Aug 27 2007, 12:17 PM
Post #7


"...And it has a front trunk too."
*****

Group: Members
Posts: 6,588
Joined: 15-February 04
From: Low Desert, CA./ Hills of N.J.
Member No.: 1,658
Region Association: None
QUOTE(purple @ Aug 27 2007, 09:37 AM) *

Well guys...It looks like this gentleman, from this forum, has a pair of hotness weber 40 IDF's rebuilt...what do you guys think?


What's involved with putting these on? http://www.914world.com/bbs2/index.php?showtopic=75459

Is the price good? I can get a whole new set for ~800 with linkages and full gaskets


Make an offer, If I remember correctly webers are not made in Italy any longer.

They come with everything, and everything costs money. These appear to be

rebuilt. Up to you but I have been useing and rebuilding mine sense 82 and they

still rebuild and work well.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
type11969
post Aug 27 2007, 02:18 PM
Post #8


Senior Member
***

Group: Members
Posts: 1,231
Joined: 2-December 03
From: Collingswood, NJ
Member No.: 1,410
Region Association: North East States
Thats not Jake's website (dunno if he offers a similar deal though), it is John Connelly's (sp) who has been on the VW scene for a long time. Definitely knows what he is doing . . .

QUOTE(purple @ Aug 27 2007, 09:55 AM) *

Damn, that's badass!

I bet I'd spend more in jets and shipping to get the right ones after getting the kit from somewhere else. And I know Jake knows what he's doing with these.

Now, about coming up with 1 M note....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
purple
post Aug 27 2007, 02:39 PM
Post #9


Pigeon feeders attract me
***

Group: Members
Posts: 938
Joined: 24-July 07
From: Houston, TX
Member No.: 7,942
Region Association: None
My problem is that i have NO idea what's in my engine. It may even be a bus engine as it's got hydro lifters. So I guess jetting would be some exercise in turd polishing?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
type11969
post Aug 27 2007, 03:31 PM
Post #10


Senior Member
***

Group: Members
Posts: 1,231
Joined: 2-December 03
From: Collingswood, NJ
Member No.: 1,410
Region Association: North East States
Well with the engine and head serial numbers you should be able to get an idea of the displacement, the valve sizes, and the source of the engine . . . that should be all you need to get close enough. Hydro lifter engine isn't going to spin much past 5k, my guess is the valves are pretty small (actually I think the hydro engines only came with one valve size), so with that you can make a good guess about vent size, mains are based off vents and max rpm, idles and airs you can just start at a generally accepted value and go from there.

Reference for serial numbers:

http://www.tunacan.net/t4/reference/index.html
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
type11969
post Aug 27 2007, 03:31 PM
Post #11


Senior Member
***

Group: Members
Posts: 1,231
Joined: 2-December 03
From: Collingswood, NJ
Member No.: 1,410
Region Association: North East States
Oh, and if you got a wide band O2 sensor then you could really get it dialed in just right.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Joe Ricard
post Aug 27 2007, 04:01 PM
Post #12


CUMONIWANNARACEU
*****

Group: Members
Posts: 6,811
Joined: 5-January 03
From: Gautier, MS
Member No.: 92
Even if you stumble blind drunk and dumb getting the right for one variable like hot humid. You will need different jets for cold dry.

The carbs in the original link are older style. nothing wrong with them just different acceleration linkage.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Twystd1
post Aug 27 2007, 04:57 PM
Post #13


You don't want to know... really.....
****

Group: Members
Posts: 2,514
Joined: 12-September 04
From: Newport Beach, California
Member No.: 2,743
There has been A LOT of bad press on the new Webers.
Yet I have a tendancy to tryst ANYTHING John Connely sells at Aircooled.net. He is a very good guy and very knowledgeable.

Go check out Cal look or the Samba forums... They bag on the NEW webers pretty badly.. (as of 6 months ago) Maybe something has changed.

ME... I would just rebuild an old set. Cause I have done so many over the years. I know what to look for. And I can usually get em for a bout 400 a set.

Thats my experience. Yours may be different.

Cheers,
Clayton
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Twystd1
post Aug 27 2007, 04:57 PM
Post #14


You don't want to know... really.....
****

Group: Members
Posts: 2,514
Joined: 12-September 04
From: Newport Beach, California
Member No.: 2,743
OOOps..... Double post
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
purple
post Aug 27 2007, 09:23 PM
Post #15


Pigeon feeders attract me
***

Group: Members
Posts: 938
Joined: 24-July 07
From: Houston, TX
Member No.: 7,942
Region Association: None
I sprung for the rebuilt carbs. I figure I can spend a whole lot of time on tuning the rebuilt ones and putting blockoff plates on them for the extra 400 bux.

YIPEE!!!! PROPER CARBS!!!!!

anyone want some weber progressive toilet paper now? (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SGB
post Aug 27 2007, 10:41 PM
Post #16


just visiting
****

Group: Members
Posts: 4,086
Joined: 8-March 03
From: Huntsville, AL
Member No.: 404
Region Association: South East States
I believe Brian has some sweet parts he has never used. Do theycome with any jets?
it is no real mystery- try 55 idle, 125 main, 180 air.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
purple
post Aug 27 2007, 10:44 PM
Post #17


Pigeon feeders attract me
***

Group: Members
Posts: 938
Joined: 24-July 07
From: Houston, TX
Member No.: 7,942
Region Association: None
Thanks for the tip scott. I'm going to find as many manuals as i can for these, but just before I start, how many jets of each do i need? what do those jets you mentioned do?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
type11969
post Aug 28 2007, 06:35 AM
Post #18


Senior Member
***

Group: Members
Posts: 1,231
Joined: 2-December 03
From: Collingswood, NJ
Member No.: 1,410
Region Association: North East States
4 of each, 1 per barrell.

Check your vent size, make sure it is not huge otherwise it may be tricky to tune. Especially if you have a low revving bus engine.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
So.Cal.914
post Aug 28 2007, 07:56 AM
Post #19


"...And it has a front trunk too."
*****

Group: Members
Posts: 6,588
Joined: 15-February 04
From: Low Desert, CA./ Hills of N.J.
Member No.: 1,658
Region Association: None
Cool, now you need NO, a blower, a couple turbos and a fire extinguisher. (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SGB
post Aug 28 2007, 03:34 PM
Post #20


just visiting
****

Group: Members
Posts: 4,086
Joined: 8-March 03
From: Huntsville, AL
Member No.: 404
Region Association: South East States
QUOTE(type11969 @ Aug 28 2007, 07:35 AM) *

4 of each, 1 per barrell.

Check your vent size, make sure it is not huge otherwise it may be tricky to tune. Especially if you have a low revving bus engine.

"vent" = Venturi, the narrowing openning inside each barrel. Usually a 40 idf carb comes with 28mm venturis. It is stamped on the venturi itself.
I see the ad says "jetted for 2.0" so it is very likely you got the jet sizes I listed. One thing I see that is good is that your new carbs have "jet doctors"- those tubes sticking up from the top- that will help prevent problems in high G turns (I don't have 'em YET)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

2 Pages V  1 2 >
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: 16th May 2024 - 04:00 AM
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 ...