 split duration camshafts |
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| mightyohm |
 Jan 30 2004, 06:31 PM
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Advanced Member  Group: Benefactors Posts: 2,277 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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| lmcchesney |
Jan 31 2004, 08:08 AM
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Member Group: Members Posts: 488 Joined: 24-November 03 From: Ocala, Fl. Member No.: 1,381 Region Association: None |
Dave,
That is a specific question I have had with D-jet. This is the incentive for writting you about subsituting D-jet and Mega Squirt. I added your questions to mine on the STF site http://www.shoptalkforums.com/viewtopic.ph...p=431013#431013 Similar questions is weather to go with just split duration, split lift or combination of the two. Of course increased Exhaust valve curtain area and port flows would help as well as header tunning. If you go with split duration while keeping stock overlap (IVO 12°BTDC and EVC 4°ATDC) how far in the power stroke can you have EVO? From my reading, piston speed reaches max at 81-90° into power stroke and EVO following max speed should not significantly decrease power. Thoughts? L. McChesney |
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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
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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 DNHunt L
I don't have a clew. Sorry but that's ... Jan 31 2004, 08:43 AM
lmcchesney Monk would not show disrespect to honorrible Grass... Jan 31 2004, 04:55 PM |
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