compresion ratio

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User1

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<TABLE cellSpacing=1 cellPadding=6 width="100%" border=0><TBODY><TR><TD colSpan=2><TABLE width="100%" border=0><TBODY><TR><TD style="PADDING-TOP: 4px" vAlign=top colSpan=2>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]compresion ratio<!-- google_ad_section_end -->

[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial]March 14 2000 at 5:42 PM[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "a";n54_em = n54_em + "l";n54_em = n54_em + "p";n54_em = n54_em + "h";n54_em = n54_em + "a";n54_em = n54_em + "w";n54_em = n54_em + "e";n54_em = n54_em + "r";n54_em = n54_em + "k";n54_em = n54_em + "s";n54_em = n54_em + "@";n54_em = n54_em + "y";n54_em = n54_em + "a";n54_em = n54_em + "h";n54_em = n54_em + "o";n54_em = n54_em + "o";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "a"; document.write("mav"); // --> </SCRIPT>mav <NOSCRIPT></NOSCRIPT> [/FONT]</TD></TR><TR><TD vAlign=bottom colSpan=3><HR></TD></TR><TR><TD colSpan=3>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->how much compresion can the 1500 handle? starting with 8.5:1 and removing 1.7mm (0.070") would seem to produce 10.3:1. i have heard this can lead to uncontroled detonation. i realise the better the breathing the greater the dynamic compression, but 10.3 would seem sensible. if this is do to the exhaust heating the intake runners, this will not be a problem for me. if there are other posible causes i'd love to hear them. and thanks for the quick response Ulix, your a top man. by the way if anyone knows the specs of the european cams, that'd be cool as well.<!-- google_ad_section_end -->

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[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Author[/FONT]</TD><TD>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]Reply[/FONT]</TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "s";n54_em = n54_em + "t";n54_em = n54_em + "e";n54_em = n54_em + "v";n54_em = n54_em + "e";n54_em = n54_em + "h";n54_em = n54_em + "h";n54_em = n54_em + "@";n54_em = n54_em + "h";n54_em = n54_em + "i";n54_em = n54_em + "w";n54_em = n54_em + "a";n54_em = n54_em + "a";n54_em = n54_em + "y";n54_em = n54_em + ".";n54_em = n54_em + "n";n54_em = n54_em + "e";n54_em = n54_em + "t"; document.write("Steve Hoelscher"); // --> </SCRIPT>Steve Hoelscher <NOSCRIPT></NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Compression?<!-- google_ad_section_end -->

[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]March 14 2000, 9:22 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->How much compression? Well, I know of a production racer that is using a motor at 16:1. But then he also uses 115 octane race gas too.

10.5 is not too high to run pump gas. Just get used to paying the highest number on the sign at your favorite "brand name" gas station. You will need to run the mixture a little fat and be carefull with the ignition timing, probably backing it off a few degrees. Water temp will have an effect too, so drop a slightly cooler thermostat in.

Steve
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[/FONT]</TD></TR></TBODY></TABLE></TD></TR><TR><TD vAlign=top noWrap width="17.9%">[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<SCRIPT language=Javascript> <!-- var n54_em; n54_em = ""; n54_em = n54_em + "d";n54_em = n54_em + "c";n54_em = n54_em + "m";n54_em = n54_em + "e";n54_em = n54_em + "h";n54_em = n54_em + "l";n54_em = n54_em + "@";n54_em = n54_em + "y";n54_em = n54_em + "a";n54_em = n54_em + "h";n54_em = n54_em + "o";n54_em = n54_em + "o";n54_em = n54_em + ".";n54_em = n54_em + "c";n54_em = n54_em + "o";n54_em = n54_em + "m"; document.write("Danny"); // --> </SCRIPT>Danny <NOSCRIPT></NOSCRIPT>[/FONT]
[FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD style="PADDING-LEFT: 15px" vAlign=top><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD align=left>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->Euro cam specs<!-- google_ad_section_end -->

[/FONT][FONT=Trebuchet MS, Verdana, Tahoma, Arial][/FONT]</TD><TD vAlign=top align=right>[FONT=Trebuchet MS, Verdana, Tahoma, Arial]March 22 2000, 10:06 PM [/FONT]</TD></TR></TBODY></TABLE><TABLE cellSpacing=0 cellPadding=1 width="100%" border=0><TBODY><TR><TD style="PADDING-LEFT: 15px">
[FONT=Trebuchet MS, Verdana, Tahoma, Arial]<!-- google_ad_section_start -->
Mav-
From the Vickautosports catalogue:
Valve timing 38-78 78-38
Lobe 110
Centers 110
Duration 296 degrees
Overlap 76 degrees
Lift 9.7mm
It's part number 14-3310 for about $150. This is what they say is the Euro original cam, if that is what you are referring to. Give 'em a call (800-466-FIAT), I'm sure they can tell you more.

Good luck,
Danny<!-- google_ad_section_end -->

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