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New Edge Cobras
Those with aviator motors
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<blockquote data-quote="IUP99snake" data-source="post: 10625002" data-attributes="member: 7060"><p>According to Motor Trend, it's got a 10.3:1 compression ratio.</p><p><a href="http://www.motortrend.com/cars/2005/lincoln/aviator/luxury_sport_utility/1054/specifications/index.html" target="_blank">Used 2005 Lincoln Aviator Luxury Sport Utility Performance Specs - 2005 Lincoln Aviator Luxury Sport Utility Performance Specifications - Motor Trend Magazine</a></p><p></p><p>That's the most reliable source I've been able to find, although I've heard it's got a compression ratio anywhere from 10:1 all the way to 10.5:1. If you can find a more reliable source, I'd love to see it. </p><p></p><p>It has the same exact cams as the 03-04 cobras, which are also the same cams as the marauders and mach's. They make more mid range power, at a sacrifice of top peak power. It's enough to notice the mid range. Like I said before, my car made 75 more HP as low as 3000 RPM, but made 50 less peak HP at redline. That tells you something!</p><p></p><p>The main reason why my car makes less "peak" boost is because it has a lower redline than with the previous motor, probably due to the cams. (in addition to the better flowing heads) With a centrifugal blower that only makes peak boost at peak RPM, 500 less RPM is 1 or 2 PSI of boost. </p><p></p><p>It might be worth it to put a set of 96-98 intake cams in there, or perhaps a set of FGT cams.. but if you're gonna do a cam swap, you might as well just go with aftermarket cams for the time invested.</p></blockquote><p></p>
[QUOTE="IUP99snake, post: 10625002, member: 7060"] According to Motor Trend, it's got a 10.3:1 compression ratio. [url=http://www.motortrend.com/cars/2005/lincoln/aviator/luxury_sport_utility/1054/specifications/index.html]Used 2005 Lincoln Aviator Luxury Sport Utility Performance Specs - 2005 Lincoln Aviator Luxury Sport Utility Performance Specifications - Motor Trend Magazine[/url] That's the most reliable source I've been able to find, although I've heard it's got a compression ratio anywhere from 10:1 all the way to 10.5:1. If you can find a more reliable source, I'd love to see it. It has the same exact cams as the 03-04 cobras, which are also the same cams as the marauders and mach's. They make more mid range power, at a sacrifice of top peak power. It's enough to notice the mid range. Like I said before, my car made 75 more HP as low as 3000 RPM, but made 50 less peak HP at redline. That tells you something! The main reason why my car makes less "peak" boost is because it has a lower redline than with the previous motor, probably due to the cams. (in addition to the better flowing heads) With a centrifugal blower that only makes peak boost at peak RPM, 500 less RPM is 1 or 2 PSI of boost. It might be worth it to put a set of 96-98 intake cams in there, or perhaps a set of FGT cams.. but if you're gonna do a cam swap, you might as well just go with aftermarket cams for the time invested. [/QUOTE]
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