 Velocity Stacks for Weber 40 IDF's |
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| NJ914Guy |
 Mar 12 2011, 07:36 AM
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Member  Group: Members Posts: 150 Joined: 30-December 10 From: Deptford, NJ Member No.: 12,546 Region Association: MidAtlantic Region  |
My kit came with the Weber/Redline air filters but no velocity stacks. Does anyone have a good source for 40 IDF velocity stacks which will fit inside of the air filters? Will adding a short (est. 2" stack) inside the filter element make a real difference?
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| jmill |
Mar 13 2011, 09:30 AM
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
QUOTE(ripper911 @ Mar 13 2011, 08:36 AM)  My set from redline is also Velocity stackless, how vital are they? The air entering the carb is quite turbulent. Stacks smooth out the flow which results in an increase in velocity. More velocity = a denser air fuel mixture. Think forced induction on the cheap (it's no turbo or blower but it helps). It also cleans up the vacuum signal to the mains. They aren't vital but you will have some gains up top. |
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Posts in this topic
NJ914Guy Velocity Stacks for Weber 40 IDF's Mar 12 2011, 07:36 AM
nsr-jamie
My kit came with the Weber/Redline air filters bu... Mar 12 2011, 07:52 AM mrbubblehead aircooled.net Mar 12 2011, 10:14 AM NJ914Guy Thank you for the recommended vendors. Do you bel... Mar 12 2011, 10:22 AM Jeffs9146 There was a thread a few years back that did a tes... Mar 12 2011, 10:40 AM URY914 CB Performance are crooks when it comes to shippin... Mar 12 2011, 11:50 AM ripper911 My set from redline is also Velocity stackless, ho... Mar 13 2011, 07:36 AM J P Stein I bought some from a local VW bug shop. A 0 on the... Mar 13 2011, 08:59 AM ripper911 off to the VW shop when I get a chance then! Mar 13 2011, 09:50 AM J P Stein Tell these guys they are not "vital" or ... Mar 13 2011, 10:36 AM jmill Apples and oranges. In a race car, where a few HP... Mar 13 2011, 10:53 AM r_towle with 40 IDF carbs on a slow velocity type 4 head, ... Mar 13 2011, 11:06 AM
gothspeed
There was a thread a few years back that did a te... Mar 13 2011, 09:08 PM |
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