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Comp Cams Stage II XFI VSR Camshafts (05-10 GT)

Comp Cams Stage II XFI VSR Camshafts (05-10 GT)
5 Reviews 6 Answers
Market Price $826.99 You Save 12% ($96.00)
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$730.99 (pair)

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  • Item 30123

  • MPN# 127300

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    Comp Cams Stage II XFI VSR Camshafts (05-10 GT)

    Comp Cams Stage II XFI VSR Camshafts (05-10 GT)
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        Features & Details

        • For 05-10 4.6/5.4 Modular 3V
        • Serious Street Cam
        • Noticeable Idle
        • For Heavily Modified Street Mustangs
        • Big Gains Above 4600 RPM
        • Improved Throttle Response

        Product Resources

        Submit the first photo Customer Reviews (5) Questions (12) & Answers (6)
        Serious Cams for Serious Performance. If you're looking for a high lift camshaft for a highly modified street Mustang, these Comp Cams Stage 2 XFI VSR Camshafts are your answer. This serious street cam delivers big gains on highly modified cars with a noticeable idle. May not be street legal in all areas, please check your local laws.

        Big Gains for Modified Engines. We've heard of 30+ horsepower on modified vehicles with these cams. For these monster cams, you'll need new springs and get the best results with 3.90 rear gears and a 3000 stall speed torque converter.

        Compatibility. These camshafts are designed for the 2005-2010 4.6 and 5.4 Modular three valve V8 Mustangs. These cams require a spring upgrade and tuning is recommended.

        Tech Notes:

        Note: Want less extreme cams? Consider Comp Cams' Stage 1 cams. Got gears & converter but don't want to buy springs? Check out the NSR cams.

        Technical Note. The installation of these Comp Cams will require a phaser limiter kit and custom ECU programming.

        Fitment: 2005 2006 2007 2008 2009 2010 Details

        What's in the Box
        • (2) Camshafts
        Installation Info
        Tech Specs
        Comp Cam Data Sheet
        Part Number: 127300 Grind Number: XE261H-15.5
        RPM Range: 950 to 6400 Engine Type: FORD 4.6 and 5.4 SOHC MODULAR 3-V
        Lobe Sep Angle: 115.5

        Intake Exhaust
        Duration: 261 278
        Duration @ .050" Lift: 222 235
        Valve Lift: 0.49 0.48
        Will it fit my Mustang?

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        12 Questions / 14 Answers

        Ask a Question

        Does BAMA offer a tune for these cams? It would save me time to get a dyno tune but would love to take my time to get one and still have a good tune.

        MichaelJ

        • The Comp Cams Stage II XFI VSR Camshafts are able to be tuned for by Bama.

          AMRobD

        Helpful (1)

        Why do you need a 3000 stall converter for?

        Cam

        • As a drag racer and an engine builder the cam center lines and duration @ 50 degrees and more do affect the lower rpm torque curves when automatic equipped. The car will leave flat if it doesn't get into torque curve IMMEDIATELY! It;s crucial in getting the car to respond with an automatic trans. The higher the stall speed the better the response. Use a MINIMUM 12,000 LBS rated trans cooler. It;s also crucial to make sure the camshafts are Degreed individually, the lower the center line of the cams the more response with lower stall converter, bigger camshafts bigger stall speed. I hope this directs you to get the necessary equipment and parts to be successful for your performance. I highly recommend beehive springs, you should be replacing the springs anyway with a new camshaft. Best of luck to your success!!!!

          MGCSR

        Show 1 more answer Helpful (1)

        Do you know if these cams work good on a 4.10 gear and if so what kind of power can I expect

        Fastjames

        will this cam be alright with a roush 2300 supercharger

        larryw

        • The Comp Cams Stage II XFI VSR Camshafts can be used safely with a Roush R2300 blower, however for ideal gains we would recommend looking at a blower cam, designed specifically for the characteristics of a supercharged engine.

          Rob D

        Helpful (0)

        I have an 07 standard shift gt what all would I have to have to run these

        MikeR

        • These Comp Cams Stage II XFI VSR Camshafts would require the Comp Cams Phaser Limiter Kit (item 30139), the Comp Cams Valve Springs Beehive (item 30106), and the Comp Cams Valve Spring Steel Retainers (item 30107). We would also recommend an upgraded ring and pinion with a 3.90:1 ratio of your favorite brand. https://www.americanmuscle.com/compcams-phaserlimit-kit-0510gt.html https://www.americanmuscle.com/mustang-comp-cams-springs-24.html https://www.americanmuscle.com/mustang-spring-retainer-3v.html

          AMJEFF

        Helpful (0)

        How much horsepower is gained from these?

        IanS

        • These Comp Cams Stage II XFI VSR Camshafts are not rated as the power gains can vary from build to build, however, we have seen 30+ horsepower on some builds.

          AMJEFF

        Helpful (0)

        Customer Reviews (5) Write a Review

        Overall Rating 4.8

        out of 5 stars

        Installation Time:Full Day

        Installation Cost:$250-$500

        • Performance Gain 5 5
        • Fit 4.666667 4.7



        • 5/5

          Installation Time: Afternoon

          December 09, 2015

          Great set of cams

          These things make your car sound absolutely beautiful and run mean as can be. The first review on here sounds more like the guy had the bad driver mod. Given he only ran a 12.9 with about every bolt on and blamed a 13.7 pass on the cams. Anyway, don't listen to him. These cams will get you amazing performance with a good Dyno tune and CORRECT installation.

          duffman667

          Year: 2007 Submodel: GT Missouri

          Helpful (9)

        • 4/5

          Installation Time: Shop Install

          Installation Cost: $250-$500

          February 15, 2013

          Great High-End Power!!

          A small amount of low end loss. But overall great driveability and a nice high end kick of power!

          StangAhHolic87

          Year: 2008 Submodel: Bullitt

          Helpful (6)

        • 5/5

          Installation Time: Full Day

          March 05, 2012

          great bang for your buck

          to the guy above me. sounds to me like your cams are not timed right and possibly during the install that your cam timeing chains have sliped off the sproket at the crank. theres now way that you should be going slower at the track after cams. you should have your cams timeing checked. check the timeing marks on the phaser and chain and make sure postion1 is at top dead center to see if all is where it should be. hope this helps you out and any one who want to do cams to there mustang. i have stage 2 cams in my mustang and they are awsome :) puting down 380rwhp with the stock heads

          stang631

          Year: 2007 Submodel: GT n.y

          Helpful (13)

        • 5/5

          August 18, 2011

          These Cams are GREAT!

          I dont know about the last guy but when I installed these cams on my Procharged 05 GT I saw a HUGE difference in power just like AM says. The reason the last guy didnt see any gains was because, although he had a lot of aftermarket parts these cams require engine mods, not just bolt ons. I am running bigger injectors, coils packs, a procharger, throttle body, and a custom tune. My car is reaching into the HIGH 10s with this cam and the procharger. I would HIGHLY recommend this cam to anyone looking to put some pep in their step. Thanks to AM for the quick shipping

          Bryan

          Year: 2005 Submodel: GT

          Helpful (26)

        • 5/5

          July 24, 2011

          DONT WASTE YOUR MONEY!!!!!!

          I have all the supporting mods long tubes, Ford racing intake manifold, bbk 62mm tb, c&l racer cold air, tci 3000 stall, 410 gears, aluminum drive shaft, msd coil packs. All these part were bought from American muscle I will add. Before I added the cams I was running 12.9 at 110mpr on streets and rims. After the cams and slicks my best has been 13.7 at 104 mpr and yes thats after trying 2 new tunes from AM. So next week the cams are coming out and going back to American Muscle If they dont want to give me my money back they can just keep them.

          Bucky

          Year: 2007 Submodel: GT

          Helpful (19)

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