Cam lift question.
+ Reply to Thread
Results 1 to 9 of 9

Thread:
Cam lift question.

  1. #1
    Manwhore!!!!! Quick99's Avatar
    Join Date
    Aug 2008
    Location
    Fullerton, California, United States
    Posts
    369

    Default Cam lift question.

    Lets say you had two identical engines built. You had found two cams with the same lift and duration at .050 but one had .100 more lift than the other. How much power would you lose by running the cam with lower lift? Just for reference one had .520 and the other .620. 454 with 8lbs Boost 8.5 comp. Pro comp alum heads.

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    I'm famous ! Lucky's Avatar
    Join Date
    Dec 2007
    Location
    Ukiah,Ca
    Posts
    7,043

    Default

    Quote Originally Posted by Quick99 View Post
    Lets say you had two identical engines built. You had found two cams with the same lift and duration at .050 but one had .100 more lift than the other. How much power would you lose by running the cam with lower lift? Just for reference one had .520 and the other .620. 454 with 8lbs Boost 8.5 comp. Pro comp alum heads.
    This should be fun ...
    What Rockers are you going to run ? ( ratio)
    " my carbon footprint is gonna kick your green ass"


    Quote Originally Posted by 396_Ways_To_Spit View Post
    WOWO!!!!! THat has to be the most beautiful crank that Ive ever seen!!!!!!!!!!!!!!!!


    Quote Originally Posted by MAXIMUS View Post
    He has been allowing me to park my equipment in his backyard for a few years now...
    [/SIGPIC]

  4. #3
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,733

    Default

    you wouldn't lose anything with those heads, i know personally feed those heads at least 650 lift if its goin in a boat. comp has a nice solid street roller cam with 652 lift i like alot and have used in the past, only requires 155lbs seat pressure too! no high buck springs and chit to buy!

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Manwhore!!!!! Quick99's Avatar
    Join Date
    Aug 2008
    Location
    Fullerton, California, United States
    Posts
    369

    Default

    Quote Originally Posted by Lucky View Post
    This should be fun ...
    What Rockers are you going to run ? ( ratio)
    I have both a set of 1.7 and 1.8 laying around.

  7. #5
    Manwhore!!!!! Quick99's Avatar
    Join Date
    Aug 2008
    Location
    Fullerton, California, United States
    Posts
    369

    Default

    Pretty much rounded up the top end peices. Just need to get the bottom freshened up.

  8. #6
    I'm famous ! Lucky's Avatar
    Join Date
    Dec 2007
    Location
    Ukiah,Ca
    Posts
    7,043

    Default

    Quote Originally Posted by Quick99 View Post
    Pretty much rounded up the top end peices. Just need to get the bottom freshened up.
    Stick with the 1.7 to avoid coil bind .
    My comment was in fun , cause you know there is going to be 10 pages and oppinions up the wazuuuuu
    " my carbon footprint is gonna kick your green ass"


    Quote Originally Posted by 396_Ways_To_Spit View Post
    WOWO!!!!! THat has to be the most beautiful crank that Ive ever seen!!!!!!!!!!!!!!!!


    Quote Originally Posted by MAXIMUS View Post
    He has been allowing me to park my equipment in his backyard for a few years now...
    [/SIGPIC]

  9. #7
    Manwhore!!!!! Quick99's Avatar
    Join Date
    Aug 2008
    Location
    Fullerton, California, United States
    Posts
    369

    Default

    Quote Originally Posted by IMPATIENT 1 View Post
    you wouldn't lose anything with those heads, i know personally feed those heads at least 650 lift if its goin in a boat. comp has a nice solid street roller cam with 652 lift i like alot and have used in the past, only requires 155lbs seat pressure too! no high buck springs and chit to buy!
    Do you have a grind #. And this is a i/o boat Bravo one.

  10. #8
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,733

    Default

    Quote Originally Posted by Quick99 View Post
    Do you have a grind #. And this is a i/o boat Bravo one.
    i'll look it up for you, its super easy on the valvetrain and that's why i like it, i ran it in my blown 475, pulled great and peaked around 6500-6700ish. i'm not sure about the inboard/outboard deal, i just know it works well in jets and that those heads need as much help as possible to make em flow.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	000_0633[1].jpg 
Views:	51 
Size:	114.4 KB 
ID:	63697  

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

  11. #9
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,733

    Default

    MECHANICAL ROLLER - Best for pro street and bracket racing with 6-71 or larger.
    RPM Range 3500-7000
    Advertised Duration 300/308
    Duration @ .050 255/262
    Lift .652/.652
    Lobe Center 114°

    p#COM11-694-8

    sure a custom made cam would be best but for ease of maintence i've always liked this 1 and i've actually ran it in 2 different motors(475 and a 496) if you give it a fat idle, its a blower surging sob though!

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95