Airflow/Horsepower limit for stock 2.0L intake system? |
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Airflow/Horsepower limit for stock 2.0L intake system? |
greggearhead |
Dec 12 2019, 11:32 AM
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#1
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Newbie Group: Members Posts: 35 Joined: 19-March 11 From: Colorado Springs, CO Member No.: 12,836 Region Association: None |
OK, I did search, and couldn't really find anything.
My basic question - when does the 914 2.0L intake become a restriction to power? I have a built VW 412 - 2056 cc Type 4 * 9550 RAT cam * LE-180 heads (914 2L combustion chamber, 42mm intake, 36mm exhaust) * Mallory Unilite vacuum advance distributor, Mallory Promaster coil, Mallory Hyfire CDI * Stock 412 heater boxes & Thunderbird exhaust * 2L Bus plenum and throttle body * 2L 914 runners * Ford "Design II" F1TE-D9A (Bosch 0280150947) 24# injectors (modified) * SDS programmable EFI * Oil bath air cleaner housing modified to use large circular filter element I have a pair of IDF manifolds, and some VFR throttle bodies. Roughly equivalent to Weber 40IDFs (maybe a bit better in terms of flow). Engine made 115hp at the wheels. I'm just wondering if the (improved) stock intake is a cork or not? (IMG:http://www.914world.com/bbs2/uploads_offsite/i61.photobucket.com-12836-1576171976.1.jpg) |
GregAmy |
Dec 13 2019, 01:08 PM
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#2
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Advanced Member Group: Members Posts: 2,311 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States |
I think we're done here.
But while I have everyone else's attention...will the 2L 914 TB fit easily on the bus plenum? You may recall - if you read my friggin post! - that I'm developing a system to fit on my 2L 914 per SCCA Limited Prep regs, which requires use of the stock unmodified throttle body. Everything else is free. So if the 914 2L runners are good, maybe I can adapt that to a better plenum and run from there. I suppose I could look into modifying anything, or fabricating from scratch. Would much prefer an "easy button". As a related aside, my 914 does have a decklid over the engine, so no clearance concerns. Thanks! |
Mark Henry |
Dec 13 2019, 01:47 PM
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#3
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I think we're done here. But while I have everyone else's attention...will the 2L 914 TB fit easily on the bus plenum? You may recall - if you read my friggin post! - that I'm developing a system to fit on my 2L 914 per SCCA Limited Prep regs, which requires use of the stock unmodified throttle body. Everything else is free. So if the 914 2L runners are good, maybe I can adapt that to a better plenum and run from there. I suppose I could look into modifying anything, or fabricating from scratch. Would much prefer an "easy button". As a related aside, my 914 does have a decklid over the engine, so no clearance concerns. Thanks! http://www.sdsefi.com/air12.html |
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