 Carb questions?, Will idf 40's keep up? |
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| 914_classic |
 Oct 26 2011, 03:48 PM
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Newbie  Group: Members Posts: 12 Joined: 2-April 11 From: West Michigan Member No.: 12,887 Region Association: Upper MidWest  |
I'm starting a 2.0 build and I have set of idf 40's but I don't know if they'll keep up. It's going to have the biggest cylinders and pistons I can buy in it with a knife edged and balanced crank, port and polished heads, big cam... Blah blah blah. I have a set of IDF 40s and I am wondering if they will be able to keep up. Any help would be appreciated.
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| jmill |
Nov 2 2011, 10:49 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(914_classic @ Oct 31 2011, 11:34 PM)  Are DCOE's worth trying? Im a pretty big watercooled fan and a lot of the watercooled racers who run carbs use DCOE's. DCOE's are side drafts. They work great for watercooled cars because the intake port is on the side of the head. IDA's and IDF's are down drafts. The aircooled heads have the ports pointed up perfect for a down draft application. Unless your going to turbo it why would you increase manifold length or add a 90 degree angle in the mix to screw up flow? Here's the venturi chart I reference. It's only a guide. I'd go with Jakes real world experience. Attached image(s) 
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Posts in this topic
914_classic Carb questions? Oct 26 2011, 03:48 PM
kg6dxn The biggest would make your engine a 3.6L. Is that... Oct 26 2011, 04:16 PM jmill We need a little more info than that. First off, ... Oct 26 2011, 04:18 PM John Is this a 4-cyl engine? Are you using dual 40s?
... Oct 26 2011, 05:28 PM Vacca Rabite
I'm starting a 2.0 build and I have set of id... Oct 26 2011, 05:42 PM 914_classic I am an engine builder and have enough knowledge o... Oct 31 2011, 08:29 PM Jake Raby If you are looking for hi RPM then high volume wil... Oct 31 2011, 09:25 PM 914_classic That was exactly what i was looking for, thanks so... Oct 31 2011, 10:34 PM
914_classic Thanks! I'm not super familiar with carbs,... Nov 3 2011, 04:11 PM |
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