Author
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Topic: cam ramp profile
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Dubz Gearhead Posts: 443 From: Manitoba Canada Registered: Oct 2002
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posted 04-15-2003 03:42 AM
in my planning for my "perfect engine" i'm looking at the 270H as well as the XE268H. both have the same intake duration at .50 but the 268 has .01 more lift and is also tighter advertized. This increase in ramp speed on the intake, that is a good thing right? Which would be better, the single pattern or dual pattern??
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steve'66 Gearhead Posts: 6522 From: Sonoma,CA,USA Registered: Mar 2000
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posted 04-16-2003 12:26 AM
Six of one and a half dozen of the other. SteveW
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Mpcoluv Gearhead Posts: 945 From: Charlotte NC usa Registered: Apr 2001
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posted 04-16-2003 06:38 AM
quote: Originally posted by Dubz: in my planning for my "perfect engine" i'm looking at the 270H as well as the XE268H. both have the same intake duration at .50 but the 268 has .01 more lift and is also tighter advertized. This increase in ramp speed on the intake, that is a good thing right? Which would be better, the single pattern or dual pattern??
Try to find out the duration at .200 lift. I would imagine that the XE cam has a little more duration at .200
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n2oMike Gearhead Posts: 1547 From: Spencer, WV Registered: Jan 2001
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posted 04-16-2003 08:09 AM
If memory serves, the 270H is the 270 magnum, and measures 224 @ 0.050" on both intake and exhaust with a 110 degree lobe seperation.The XE268H is a split duration unit, with more timing on the exhaust, and the same 110 lobe seperation. The Xtreme Energy unit is a more modern grind, and is probably a bit more aggressive. I believe it has more lift as well. Go to www.compcams.com and click on their online catalog to check the complete specs of their cams. Good Luck! ------------------ Mike Burch 66 mustang real street 302 4-speed 289 heads 10.63 @ 129.3 http://www.geocities.com/carbedstangs/cmml_mburch.html http://www.fortunecity.com/silverstone/healey/367 http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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Dubz Gearhead Posts: 443 From: Manitoba Canada Registered: Oct 2002
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posted 04-16-2003 01:29 PM
i've been looking at the cataloge that's why i'm asking the question!
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