 Dual weber 40idf, really 860cfm? |
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| ripper911 |
  Jul 2 2010, 05:20 PM
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#1
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corde pulsum tangite  Group: Members Posts: 2,920 Joined: 25-April 10 From: Powder Springs, GA Member No.: 11,654 Region Association: South East States  |
I read on a website yesterday that weber 40 idfs are 430 cfm each adding up to 860cfm total, is this right? (IMG:style_emoticons/default/confused24.gif)
Seems like a lot for a 1.8... |
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| 70_914 |
Jul 2 2010, 05:30 PM
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Member Group: Members Posts: 395 Joined: 4-December 09 From: Roy, WA Member No.: 11,096 Region Association: Pacific Northwest |
QUOTE(ripper911 @ Jul 2 2010, 04:20 PM)  I read on a website yesterday that weber 40 idfs are 430 cfm each adding up to 860cfm total, is this right? (IMG:style_emoticons/default/confused24.gif) Seems like a lot for a 1.8... Each venturi feeds its' own cylinder, so 860/4=215 cfm. |
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| ME733 |
Jul 2 2010, 05:56 PM
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#3
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Senior Member Group: Members Posts: 842 Joined: 25-June 08 From: Atlanta Ga. Member No.: 9,209 Region Association: South East States |
QUOTE(70_914 @ Jul 2 2010, 07:30 PM) QUOTE(ripper911 @ Jul 2 2010, 04:20 PM) I read on a website yesterday that weber 40 idfs are 430 cfm each adding up to 860cfm total, is this right? (IMG:style_emoticons/default/confused24.gif) Seems like a lot for a 1.8... Each venturi feeds its' own cylinder, so 860/4=215 cfm. And this is why the 40 idfs, will flow enough air for most 914 engines, as 215 cfm is more air flow than almost all 914 cylinder heads, even when modified....and why the stock or near stock Ventures are suitable for most street engines, keeps the atomization up at low(er) rpm.s. |
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Posts in this topic
ripper911 Dual weber 40idf Jul 2 2010, 05:20 PM
ripper911 I told my brother who likes muscle cars about the ... Jul 2 2010, 07:01 PM charliew This is something I ran across on a conversion sit... Jul 7 2010, 08:38 PM
70_914
This is something I ran across on a conversion si... Jul 7 2010, 11:55 PM McMark V8 guys use 4 IDFs. Jul 7 2010, 10:30 PM |
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