 split duration camshafts |
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| mightyohm |
 Jan 30 2004, 06:31 PM
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Advanced Member  Group: Benefactors Posts: 2,279 Joined: 16-January 03 From: Seattle, WA Member No.: 162 Region Association: Pacific Northwest   |
Has anyone looked into split duration cams? I know Jake loves them. I don't know of anyone who is making an off the shelf split duration cam for the 914, are people having custom cams ground to their specs? Is there a recipe for turning an off the shelf cam into a split duration cam, using stock heads/CR? Add so many degrees duration to the exhaust?
Jeff |
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| DNHunt |
Jan 31 2004, 08:43 AM
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914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
L
I don't have a clew. Sorry but that's a little like asking the "Grasshoppa" to teach the monk. I can do most of the externals but I'm learning the internals and I'm a ways behind you I guess. My understanding is that any speed density FI (D-jet and MS) require or at least like a strong vacuum signature and overlap causes problems with this especially at idle. I have heard that many race cars use alpha-N (which depends on throttle position instead of manifold vacuum to meter enrichment). The question is how far can you go with overlap before you need to switch to alpha-N tuning. Incidentally MS can be tuned for alpha-N D-jet cannot. Dave |
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Posts in this topic
jkeyzer split duration camshafts Jan 30 2004, 06:31 PM
URY914 Go the Webcam website and they have them and expla... Jan 30 2004, 06:34 PM bernbomb914 I am building a 2270 with a split duration cam fro... Jan 30 2004, 07:20 PM jkeyzer Where are they listed? I must be missing somethin... Jan 30 2004, 07:44 PM URY914 Where are you looking? Jan 30 2004, 08:07 PM URY914 This is from the Webcam website:
DUAL PATTERN:
A ... Jan 30 2004, 08:15 PM URY914 QUOTE
URY914 QUOTE
URY914 QUOTE
McMark I'd even go so far as to say that all cams are... Jan 30 2004, 09:45 PM DNHunt Being kind of new to this I have a question. I hea... Jan 31 2004, 07:02 AM lmcchesney Dave,
That is a specific question I have had with ... Jan 31 2004, 08:08 AM
lmcchesney Monk would not show disrespect to honorrible Grass... Jan 31 2004, 04:55 PM |
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