What is the maximum valve lift?, Is 0.650" possible? |
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What is the maximum valve lift?, Is 0.650" possible? |
Beebo Kanelle |
Aug 1 2016, 06:23 AM
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#1
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Member Group: Members Posts: 248 Joined: 22-November 12 From: Houston, Texas Member No.: 15,177 Region Association: Southwest Region |
What is the most extreme valve lift you've seen on a Type 4 engine?
Thanks in advance. |
Beebo Kanelle |
Aug 2 2016, 06:52 PM
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#2
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Member Group: Members Posts: 248 Joined: 22-November 12 From: Houston, Texas Member No.: 15,177 Region Association: Southwest Region |
Dave,
You are absolutely correct. The trick is to reduce pumping losses at high velocities. The breathing potential at all RPM is off the chart if the pumping losses can be managed. and, it appears it can be done. So, now I am revising the model with a maximum valve lift of 0.550" Thanks again to everybody. Stay tuned - more absurd questions in the not to distant future. |
stugray |
Aug 3 2016, 08:33 AM
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#3
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Advanced Member Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
Dave, You are absolutely correct. The trick is to reduce pumping losses at high velocities. The breathing potential at all RPM is off the chart if the pumping losses can be managed. and, it appears it can be done. So, now I am revising the model with a maximum valve lift of 0.550" Thanks again to everybody. Stay tuned - more absurd questions in the not to distant future. I have a Raby cam and lifters BNIB with .550 valve lift. Also, if you are looking for a free CAD package, check out OnShape.com . It is almost identical to SolidWorks as far as the interface goes. And if you modeled something in onshape, I could easily import it into Solidworks and I have all the simulation capabilities. |
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