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2011-2014 Mustangs
2011-2014 Mustang Talk
Stock Cam Specs?
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<blockquote data-quote="Yagermeister" data-source="post: 12916577" data-attributes="member: 130275"><p>In the Ford Racing catalog for the Boss cams they mention the GT cams have only 12mm INT and 11mm EXH of lift and <span style="color: Yellow">260</span> duration on the INT. <em><span style="color: DarkOrange">Is the GT cam intake 260 or 263? Where do the lift numbers come in to the previously provided numbers? Regarding the Boss and Cobra Jet cams, are all the numbers the same except for what is noted?</span></em></p><p></p><p>Noted on the Boss INT cams: 13MM Lift / 263 degree duration vs. 12mm lift and <span style="color: Yellow">260</span> degree duration on Mustang GT 5.0L engine</p><p></p><p>Noted on the Boss EXH cams: 13MM Lift / 290 degree duration vs. 11mm lift and 263 degree duration on Mustang GT 5.0L engine</p><p></p><p>Noted on the "mini" Cobra Jet EXH cams: 11mm lift / 290 degree duration vs. 11mm lift and 263 duration on Mustang GT 5.0L engine</p><p></p><p></p><p></p><p>Found this in another thread somewhere on Mustang Source:</p><p></p><p>Stock cam specs</p><p></p><p>GT</p><p>Intake: Lift - 12MM (0.472"), Duration - 260 degrees</p><p>Exhaust: Lift - 11MM (0.433"), Duration - 263 degrees</p><p></p><p>Boss</p><p>Intake: Lift - 12MM (0.472"), Duration - <span style="color: yellow">260 degrees [Same as GT]</span></p><p>Exhaust: Lift - 13MM (0.512"), Duration - 263 degrees</p><p></p><p>Cobra Jet cam specs</p><p></p><p>M-6550-M50BINT (the originally planned Boss intake cam that didn't make it into production, it's used in the CJ)</p><p>Lift - 13MM (0.512"), Duration - 263 degrees</p><p></p><p>M-6550-M50BEXH (the CJ exhaust cam)</p><p>Lift - 13MM (0.512"), Duration - 290 degrees</p><p></p><p></p><p>Comp Cams aftermarket cams</p><p></p><p>Stage I</p><p>Intake: Lift - 0.492", Duration - 260 degrees</p><p>Exhaust: Lift - 0.453", Duration - 267 degrees</p><p></p><p>Stage II</p><p>Intake: Lift - 0.492", Duration - 268 degrees</p><p>Exhaust: Lift - 0.453", Duration - 275 degrees</p><p></p><p>Stage III</p><p>Intake: Lift - 0.492", Duration - 276 degrees</p><p>Exhaust: Lift - 0.453", Duration - 283 degrees</p><p></p><p>All the Comp Cams cams require phase limiters that restrict the Ti-VCT movement to 20 degrees. The Ford Racing Cobra Jet cams do not.</p></blockquote><p></p>
[QUOTE="Yagermeister, post: 12916577, member: 130275"] In the Ford Racing catalog for the Boss cams they mention the GT cams have only 12mm INT and 11mm EXH of lift and [COLOR="Yellow"]260[/COLOR] duration on the INT. [I][COLOR="DarkOrange"]Is the GT cam intake 260 or 263? Where do the lift numbers come in to the previously provided numbers? Regarding the Boss and Cobra Jet cams, are all the numbers the same except for what is noted?[/COLOR][/I] Noted on the Boss INT cams: 13MM Lift / 263 degree duration vs. 12mm lift and [COLOR="Yellow"]260[/COLOR] degree duration on Mustang GT 5.0L engine Noted on the Boss EXH cams: 13MM Lift / 290 degree duration vs. 11mm lift and 263 degree duration on Mustang GT 5.0L engine Noted on the "mini" Cobra Jet EXH cams: 11mm lift / 290 degree duration vs. 11mm lift and 263 duration on Mustang GT 5.0L engine Found this in another thread somewhere on Mustang Source: Stock cam specs GT Intake: Lift - 12MM (0.472"), Duration - 260 degrees Exhaust: Lift - 11MM (0.433"), Duration - 263 degrees Boss Intake: Lift - 12MM (0.472"), Duration - [COLOR="yellow"]260 degrees [Same as GT][/COLOR] Exhaust: Lift - 13MM (0.512"), Duration - 263 degrees Cobra Jet cam specs M-6550-M50BINT (the originally planned Boss intake cam that didn't make it into production, it's used in the CJ) Lift - 13MM (0.512"), Duration - 263 degrees M-6550-M50BEXH (the CJ exhaust cam) Lift - 13MM (0.512"), Duration - 290 degrees Comp Cams aftermarket cams Stage I Intake: Lift - 0.492", Duration - 260 degrees Exhaust: Lift - 0.453", Duration - 267 degrees Stage II Intake: Lift - 0.492", Duration - 268 degrees Exhaust: Lift - 0.453", Duration - 275 degrees Stage III Intake: Lift - 0.492", Duration - 276 degrees Exhaust: Lift - 0.453", Duration - 283 degrees All the Comp Cams cams require phase limiters that restrict the Ti-VCT movement to 20 degrees. The Ford Racing Cobra Jet cams do not. [/QUOTE]
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