WTB: Authentic IDF 40 Manifolds |
|
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. |
|
We've established the following rules to help make your sales/purchases as successful as possible!
- Please List WTB:, FS:, TRADE: etc (want to buy, for sale, and trade respectively) before your add title.
- You *must* put a price in your ad and state how you would like payment!
- If you'd like to bump your ads, feel free to do so every two days.
- DO NOT MAKE YOUR ADS IN ALL CAPITAL LETTERS! It's considered rude.
- All eBay ads belong in the eBay category.
- Please consolidate your ads into one big lump... listings and pictures together in one thread. Please be considerate of other classified users!!
- Mark your items "SOLD" once you sell them. Please do not ask to have ads removed. Ads will automatically hide themselves after 30 days. We also ask that you leave your pricing in the ads to help others determine fair market value for future sales.
WTB: Authentic IDF 40 Manifolds |
'73Porsche914Tang |
Mar 18 2020, 08:55 AM
Post
#1
|
Newbie Group: Members Posts: 1 Joined: 27-May 18 From: Boulder, Co Member No.: 22,161 Region Association: Rocky Mountains |
Hello all! Happy to have this supportive community to help me out with this, as I have been striking out. I have a '73 914 that I am building. She's a 2.0 liter car with SC flares, 5 Lug Fuchs in Ravenna Green. Her new 2100cc motor is going in this week, and we have a fresh pair of 40IDF carbs to go on it....but no manifolds. EVERY place I speak to has manifolds that will bolt up (3 bolt pattern), but they are all the cheap EMPI model, measuring 44mm below the carb. Aircooled.net, Pierce Manifolds, eBay...they are all like this (IMG:style_emoticons/default/WTF.gif) . My understanding is that these larger bored manifolds paired with the 40mm carb output causes air turbulation under the carb which I do not want. I was running 44's on my last build, 2056...bogged down like crazy below 3k even jetted down..they're just too big. Soooo....any suggestions on where I might find a set of OLD stock Weber manifolds for 40's?????? Aircooled.net said the only way to make it happen is to sleeve them and seal it with JB Weld....I don't buy it, nor would I do that..... |
KevinW |
Mar 18 2020, 10:53 AM
Post
#2
|
Newbie Group: Members Posts: 42 Joined: 25-May 15 From: Winona, Minnesota Member No.: 18,761 Region Association: Upper MidWest |
Look on TheSamba.com
|
914werke |
Mar 18 2020, 06:30 PM
Post
#3
|
"I got blisters on me fingers" Group: Members Posts: 9,995 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
My understanding is that these larger bored manifolds paired with the 40mm carb output causes air turbulation under the carb which I do not want. (IMG:style_emoticons/default/laugh.gif) is that a word... if so Im not sure its the one you want. From where are you deriving this understanding? It stands to reason that you might want an intake bore the same diam. as the throat of the carb. you are using, but its not like it is a plenum, & wonder how much adverse impact is likely. |
Dominic |
Mar 18 2020, 07:37 PM
Post
#4
|
Dominic Group: Members Posts: 990 Joined: 14-January 03 From: Vacaville, CA Member No.: 149 Region Association: Northern California |
Hello all! Happy to have this supportive community to help me out with this, as I have been striking out. I have a '73 914 that I am building. She's a 2.0 liter car with SC flares, 5 Lug Fuchs in Ravenna Green. Her new 2100cc motor is going in this week, and we have a fresh pair of 40IDF carbs to go on it....but no manifolds. EVERY place I speak to has manifolds that will bolt up (3 bolt pattern), but they are all the cheap EMPI model, measuring 44mm below the carb. Aircooled.net, Pierce Manifolds, eBay...they are all like this (IMG:style_emoticons/default/WTF.gif) . My understanding is that these larger bored manifolds paired with the 40mm carb output causes air turbulation under the carb which I do not want. I was running 44's on my last build, 2056...bogged down like crazy below 3k even jetted down..they're just too big. Soooo....any suggestions on where I might find a set of OLD stock Weber manifolds for 40's?????? Aircooled.net said the only way to make it happen is to sleeve them and seal it with JB Weld....I don't buy it, nor would I do that..... Gonna be hard to find manifolds that are only 40mm on the carb side since most were made to fit all sizes of Weber and Dellorto downdraft carbs. The only thing close to that would be the factory manifolds made for the 1.8L engine for the Type 4 Formula Super Vee series. I have a set for sale here on the samba, but they are only 4 bolt (1.7L / 1.8L). The carb side opening is 41mm, and the bolt pattern is for a Solex P11-40 carb. https://www.thesamba.com/vw/classifieds/det....php?id=2325594 |
'73Porsche914Tang |
Mar 22 2020, 06:31 PM
Post
#5
|
Newbie Group: Members Posts: 1 Joined: 27-May 18 From: Boulder, Co Member No.: 22,161 Region Association: Rocky Mountains |
I was able to find a set from European Motorworks in California. Internal diameter: 40mm They are super hard to find.
Turbulation may not have been the word I was looking for...though it seems like not to far a stretch as my intended meaning was: causing air to turbulate, or turning a laminar flow into a turbulent flow....which IS what would happen with a 48mm manifold being fed by a 40mm opening on the bottom side of the carb. Think about it...How can that be beneficial for air FLOW. Why Redline would market kits that use universal bores for their manifolds 40-48 is beyond me, but my sentiment was corroborated by George Hussey who agreed that this is in no way ideal. I have 2 other sets of manifolds...48s (which redline sells universally now with their kits) and 44s, which would have matched up with the 44 Webers I have.... Glad to be running Weber 40s with the proper manifolds now... I think it will make a difference because...science. Hello all! Happy to have this supportive community to help me out with this, as I have been striking out. I have a '73 914 that I am building. She's a 2.0 liter car with SC flares, 5 Lug Fuchs in Ravenna Green. Her new 2100cc motor is going in this week, and we have a fresh pair of 40IDF carbs to go on it....but no manifolds. EVERY place I speak to has manifolds that will bolt up (3 bolt pattern), but they are all the cheap EMPI model, measuring 44mm below the carb. Aircooled.net, Pierce Manifolds, eBay...they are all like this (IMG:style_emoticons/default/WTF.gif) . My understanding is that these larger bored manifolds paired with the 40mm carb output causes air turbulation under the carb which I do not want. I was running 44's on my last build, 2056...bogged down like crazy below 3k even jetted down..they're just too big. Soooo....any suggestions on where I might find a set of OLD stock Weber manifolds for 40's?????? Aircooled.net said the only way to make it happen is to sleeve them and seal it with JB Weld....I don't buy it, nor would I do that..... Gonna be hard to find manifolds that are only 40mm on the carb side since most were made to fit all sizes of Weber and Dellorto downdraft carbs. The only thing close to that would be the factory manifolds made for the 1.8L engine for the Type 4 Formula Super Vee series. I have a set for sale here on the samba, but they are only 4 bolt (1.7L / 1.8L). The carb side opening is 41mm, and the bolt pattern is for a Solex P11-40 carb. https://www.thesamba.com/vw/classifieds/det....php?id=2325594 |
JamesM |
Mar 24 2020, 11:22 PM
Post
#6
|
Senior Member Group: Members Posts: 1,888 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
Brand new
https://www.csp-shop.com/en/engine/intake-m...440-22691a.html you're welcome They have the shorties too https://www.csp-shop.com/en/brand-shops/int...0k3-21127b.html Hello all! Happy to have this supportive community to help me out with this, as I have been striking out. I have a '73 914 that I am building. She's a 2.0 liter car with SC flares, 5 Lug Fuchs in Ravenna Green. Her new 2100cc motor is going in this week, and we have a fresh pair of 40IDF carbs to go on it....but no manifolds. EVERY place I speak to has manifolds that will bolt up (3 bolt pattern), but they are all the cheap EMPI model, measuring 44mm below the carb. Aircooled.net, Pierce Manifolds, eBay...they are all like this (IMG:style_emoticons/default/WTF.gif) . My understanding is that these larger bored manifolds paired with the 40mm carb output causes air turbulation under the carb which I do not want. I was running 44's on my last build, 2056...bogged down like crazy below 3k even jetted down..they're just too big. Soooo....any suggestions on where I might find a set of OLD stock Weber manifolds for 40's?????? Aircooled.net said the only way to make it happen is to sleeve them and seal it with JB Weld....I don't buy it, nor would I do that..... |
Lo-Fi Version | Time is now: 18th April 2024 - 08:32 PM |
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 ... |