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Thread: Spreadsheet for cam related info

  1. #1
    powering freedom Dom's Avatar
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    Spreadsheet for cam related info

    http://users3.ev1.net/~black_ops/cam...calculator.xls

    Sheet 1 - compare two cams (forum post) this was an attempt to put _ in there to keep the spacing right on when posting specs on the forum. I have found a better way now is to use a fixed width font like courier which does the same thing without all the ___. This sheet compares two cams side by side so you can see how they stack up.

    Sheet 2 - Compare 4 cams. No underscores in this one. It simply compares 4 cams instead of 2.

    Sheet 3 - VE's. Shows where 93 pony was putting a lot of his cams compared to other folks. This was realy there as a reference for me when looking over some cams.

    Sheet 4 - Single Cam. Valve Events for one cam.

    Sheet 5 - Compare two cams. Compare the valve events, etc... for two cams.

    Sheet 6 - Quick and Dirty Cam/SCR/DCR Calculator Spreadsheet. This sheet takes all the cam math and combines it with a bunch of other engine math like DCR and SCR, along with header length math to help you in optimizing your combo, or to give you the details on your combo.

    Sheet 7 - Compare DCR. This allows you to compare two motor combos to look at Valve events, dynamic compression ratio, and header length and see where you want to be, or what you're going to end up at with a change...
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    I used to get these numbers from dyno2003, but now I can't find it and this is nice and easy to use. Taken from a sticky on ls1tech. Always design your cam based on valve events and work backwards to get the actual cam specs. Steeper lobes like LSK lobes will much more overlap at .200 vs XE-R lobes. So take lobe choice into consideration.

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  3. #2
    powering freedom Dom's Avatar
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    Comp Cams LSK lobes
    Lobe#, Dur. @ .006", .050", .200", & Lift w/1.7 rocker
    2124 265 215 142 .629"
    2125 269 219 145 .632"
    2126 273 223 149 .636"
    2127 277 227 153 .639"
    2128 281 231 156 .643"
    2129 285 235 160 .646"
    2130 289 239 164 .649"
    2131 293 243 168 .653"
    2132 297 247 171 .656"
    2133 301 251 175 .660"
    2134 305 255 179 .663"
    2135 309 259 183 .663"
    2136 313 263 186 .663"




    Those say for LS1, but we can get the same lobes AFAIK. Maybe someone with custom cam info can comment.

  4. #3
    Full Throttle DBIZM's Avatar
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    nice write up

  5. #4
    Project Sturmvögel WarShrike's Avatar
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    Quote Originally Posted by numflahad View Post
    what a great info, thanks.
    Thanks so much for this. I appreciate the effort. It really helps a lot.
    So, how is Zimbabwe treating you this time of year?
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