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Original Message
Cam, compression ratio
By Royce Peterson - 04/20/2003 8:45:03 PM; IP 64.154.108.116
You need more cam to use the airflow available in your intake and heads. Yet your compression is too low to take much more cam. The low compression ratio is well suited to a mild cam like the one you have selected.

To get more power another point in compresion ratio and a cam with specs in the 240 duration at .050 / 600 lift would make another 100 HP at the rear wheels.

Also your timing is way too conservative with low compression and mild cam. You might pick up 25 horsepower just by allowing advance to reach 40 degrees. It should not ping with the low cylinder pressure you have and aluminum heads.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=16968&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16968" onclick="return false;">FE intakes</a>&nbsp;-- <font color=#0000ff>Randy, <i>04/20/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=16968', contentMargin: 60, icon: $('anchor16968') }); </script>  FE intakes -- Randy, 04/20/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16969&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16969" onclick="return false;">RE: FE intakes</a>&nbsp;-- <font color=#0000ff>Travis Miller, <i>04/20/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=16969', contentMargin: 60, icon: $('anchor16969') }); </script>  RE: FE intakes -- Travis Miller, 04/20/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16971&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16971" onclick="return false;">RE: FE intakes</a>&nbsp;-- <font color=#0000ff>Randy, <i>04/20/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=16971', contentMargin: 60, icon: $('anchor16971') }); </script>  RE: FE intakes -- Randy, 04/20/2003
 RE: FE intakes -- Bob Sprowl, 04/20/2003
Collapse <b>Cam, compression ratio</b>&nbsp;-- <font color=#0000ff>Royce Peterson, <i>04/20/2003</i></font>Cam, compression ratio -- Royce Peterson, 04/20/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16974&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16974" onclick="return false;">RE: Cam, compression ratio</a>&nbsp;-- <font color=#0000ff>Randy, <i>04/20/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=16974', contentMargin: 60, icon: $('anchor16974') }); </script>  RE: Cam, compression ratio -- Randy, 04/20/2003
 Cam specs -- Royce Peterson, 04/21/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16981&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16981" onclick="return false;">RE:Valve Spring installation?</a>&nbsp;-- <font color=#0000ff> McQ, <i>04/21/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=16981', contentMargin: 60, icon: $('anchor16981') }); </script>  RE:Valve Spring installation? -- McQ, 04/21/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16988&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16988" onclick="return false;">RE:Valve Spring installation?</a>&nbsp;-- <font color=#0000ff>Randy, <i>04/23/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=16988', contentMargin: 60, icon: $('anchor16988') }); </script>  RE:Valve Spring installation? -- Randy, 04/23/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16989&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16989" onclick="return false;">I always get into trouble for this one..</a>&nbsp;-- <font color=#0000ff>james, <i>04/23/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=16989', contentMargin: 60, icon: $('anchor16989') }); </script>  I always get into trouble for this one.. -- james, 04/23/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16991&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16991" onclick="return false;">RE: I always get into trouble for this one..</a>&nbsp;-- <font color=#0000ff>Randy, <i>04/23/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=16991', contentMargin: 60, icon: $('anchor16991') }); </script>  RE: I always get into trouble for this one.. -- Randy, 04/23/2003
 Should get over 400 hp, even with low CR -- John, 04/23/2003
Collapse <a href=../ForumFE/reply.aspx?ID=17003&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor17003" onclick="return false;">RE: FE intakes</a>&nbsp;-- <font color=#0000ff>Geoff McNew, <i>04/24/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=17003', contentMargin: 60, icon: $('anchor17003') }); </script>  RE: FE intakes -- Geoff McNew, 04/24/2003
 428 times at the track. -- James, 04/24/2003
Collapse <a href=../ForumFE/reply.aspx?ID=17035&Reply=16968><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor17035" onclick="return false;">RE:36 deg.s timing</a>&nbsp;-- <font color=#0000ff>S.Vincent, <i>04/26/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=17035', contentMargin: 60, icon: $('anchor17035') }); </script>  RE:36 deg.s timing -- S.Vincent, 04/26/2003
 RE:Oh yeah, 1 more thing -- S.Vincent, 04/26/2003
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