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Original Message

The formula provided is for a non compressible fl

By Greg Westphall - 04/12/2005 1:22:53 PM; IP 12.158.13.35

The formula that Bob gave us is the theoretical requirements if the engine was pumping a noncompressible fluid such as water or oil. Air is a fluid but it is a compressible fluid and therefore the same rules do not apply. I took fluid dynamics in Engineering school but that was a while back and my design experience is limited to stress and strain calculations but I seem to remember that we need to account for the temperature and pressure conditions on both side of the carb. I also seem to remember that you can treat the air as an ideal gas which may simplify the equations somewhat. That is about all I remember. If someone in the forum is an HVAC Engineer they would know the related formula.

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Collapse <a href=../ForumFE/reply.aspx?ID=24488&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24488" onclick="return false;">which carbs to use BJ/BK or BC/BD?</a> -- <font color=#0000ff>Greg Westphall, <i>04/08/2005</i></font><script type="text/javascript">
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which carbs to use BJ/BK or BC/BD? -- Greg Westphall, 04/08/2005

My suggestion is BJ/BK based on: -- Wayne K., 04/08/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24497&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24497" onclick="return false;">I use the BJ /BK</a> -- <font color=#0000ff>Royce, <i>04/10/2005</i></font><script type="text/javascript">
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I use the BJ /BK -- Royce, 04/10/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24502&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24502" onclick="return false;">What camshaft might you recommend?</a> -- <font color=#0000ff>Greg Westphall, <i>04/10/2005</i></font><script type="text/javascript">
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What camshaft might you recommend? -- Greg Westphall, 04/10/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24506&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24506" onclick="return false;">RE: What camshaft might you recommend?</a> -- <font color=#0000ff>giacamo, <i>04/10/2005</i></font><script type="text/javascript">
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RE: What camshaft might you recommend? -- giacamo, 04/10/2005

RE: What camshaft might you recommend? -- walt, 04/26/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24507&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24507" onclick="return false;">RE: What camshaft might you recommend?</a> -- <font color=#0000ff>giacamo, <i>04/10/2005</i></font><script type="text/javascript">
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RE: What camshaft might you recommend? -- giacamo, 04/10/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24511&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24511" onclick="return false;">Agree with Giacamo. N/M</a> -- <font color=#0000ff>Royce, <i>04/10/2005</i></font><script type="text/javascript">
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Agree with Giacamo. N/M -- Royce, 04/10/2005

I can't convince him (dad) to change -- Greg Westphall, 04/10/2005

RE: What camshaft might you recommend? -- rick, 04/20/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24522&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24522" onclick="return false;">CFM formula</a> -- <font color=#0000ff>Bob, <i>04/11/2005</i></font><script type="text/javascript">
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CFM formula -- Bob, 04/11/2005

Btw -- Bob, 04/11/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24536&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24536" onclick="return false;">That CFM formula is for 4V applications</a> -- <font color=#0000ff>Royce Peterson, <i>04/12/2005</i></font><script type="text/javascript">
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That CFM formula is for 4V applications -- Royce Peterson, 04/12/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24538&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24538" onclick="return false;">This formula is for any Carb Eng</a> -- <font color=#0000ff>Bob, <i>04/12/2005</i></font><script type="text/javascript">
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This formula is for any Carb Eng -- Bob, 04/12/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24539&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24539" onclick="return false;">RE: This formula is for any Carb Eng</a> -- <font color=#0000ff>Bob, <i>04/12/2005</i></font><script type="text/javascript">
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RE: This formula is for any Carb Eng -- Bob, 04/12/2005

Collapse <b>The formula provided is for a non compressible fl</b> -- <font color=#0000ff>Greg Westphall, <i>04/12/2005</i></font>

The formula provided is for a non compressible fl -- Greg Westphall, 04/12/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24542&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24542" onclick="return false;">Sometimes practical experience counts for more...</a> -- <font color=#0000ff>Gerry Proctor, <i>04/12/2005</i></font><script type="text/javascript">
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Sometimes practical experience counts for more... -- Gerry Proctor, 04/12/2005

RE: Sometimes practical experience counts for more... -- Bob, 04/15/2005

RE: Sometimes practical experience counts for more... -- walt, 04/16/2005

RE: The formula provided is for a non compressible fl -- rick, 04/20/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24558&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24558" onclick="return false;">It sure doesn't work for an 8V 427.</a> -- <font color=#0000ff>Royce, <i>04/13/2005</i></font><script type="text/javascript">
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It sure doesn't work for an 8V 427. -- Royce, 04/13/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24560&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24560" onclick="return false;">Guess I am saying it wrong.....</a> -- <font color=#0000ff>Royce, <i>04/13/2005</i></font><script type="text/javascript">
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Guess I am saying it wrong..... -- Royce, 04/13/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24575&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24575" onclick="return false;">Gee, now you're responding crankily to yourself. :-) [n/m]</a> -- <font color=#0000ff>Mr F, <i>04/13/2005</i></font><script type="text/javascript">
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Gee, now you're responding crankily to yourself. :-) [n/m] -- Mr F, 04/13/2005

Lol! n/m -- Royce, 04/14/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24587&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24587" onclick="return false;">RE: which carbs to use BJ/BK or BC/BD?</a> -- <font color=#0000ff>walt, <i>04/16/2005</i></font><script type="text/javascript">
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RE: which carbs to use BJ/BK or BC/BD? -- walt, 04/16/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24597&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24597" onclick="return false;">Not original camshaft, Oregon Cam Grinders</a> -- <font color=#0000ff>Greg Westphall, <i>04/16/2005</i></font><script type="text/javascript">
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Not original camshaft, Oregon Cam Grinders -- Greg Westphall, 04/16/2005

Collapse <a href=../ForumFE/reply.aspx?ID=24632&Reply=24488><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor24632" onclick="return false;">.050 duration 6250-B & 6250-C Cams</a> -- <font color=#0000ff>Greg Westphall, <i>04/18/2005</i></font><script type="text/javascript">
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.050 duration 6250-B & 6250-C Cams -- Greg Westphall, 04/18/2005

RE: .050 duration 6250-B & 6250-C Cams -- walt, 04/24/2005