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Thread: Engeing Combo Feedback

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  1. #1
    1bad75vette is offline CHR Member Visit my Photo Gallery
    Join Date
    Oct 2005

    Engeing Combo Feedback


    Looking to hear what you guys think about this combo. It would be going in my 75 Corvette with factory stall coverter and 308 rear gears. Link http://superchevy.com/tech/0312sc_dm15/ danger mouse test 15 is the one i am looking at.

    Through all this we've learned that there are certain ways to build an engine to give you the best power-per-dollar. And the best thing is that all the combinations we've tried so far would be easy for you to duplicate yourself. Perhaps the best combination for the money we've tested has to be the Vortec iron heads and COMP Cams XE262 camshaft with an Edelbrock Performer RPM Air Gap intake we ran in DM Part 6 (February 2003). This engine made tons of low-end torque and still managed over 415 hp--and all from a very affordable and streetable package that even makes enough vacuum for power brakes.

    T15--DM Part 6: GM Vortec iron heads SDPC PN SD8060A (64cc chambers, 170cc intake runner volume, 1.94/1.50 valves) with Comp Cams 1.6:1 Magnum roller tip rockers PN 1418-16, Edelbrock Performer RPM Air Gap Vortec intake manifold PN 7516 COMP Cams XE262H cam (262/270 advance duration, 218/224 duration at .050, .462/.469 valve lift, 110 lobe separation) straight up.

    T15 T15
    2600 379 188
    2800 384 204
    3000 404 231
    3200 427 260
    3400 433 280
    3600 435 298
    3800 437 316
    4000 432 329
    4200 433 347
    4400 434 364
    4600 439 385
    4800 433 396
    5000 423 402
    5200 411 407
    5400 401 413
    5600 389 415
    5800 365 403

    Max 440 416
    Avg 417 333

  2. #2
    techinspector1's Avatar
    techinspector1 is offline CHR Member Visit my Photo Gallery
    Join Date
    May 2003
    Zephyrhills, Florida, USA
    Car Year, Make, Model: '32 Henway

    The last time I ran a cam close to those specs, I remember that I made a mental note to myself that the car would have been a lot easier to drive with a little looser converter.
    Hughes #HUP-GM20, 2,000 stall, $135.95
    Last edited by techinspector1; 01-17-2006 at 10:13 PM.

  3. #3
    slic anderson is offline Registered User Visit my Photo Gallery
    Join Date
    Feb 2006
    la habra

    thats a NICE combo! i have a 76 vette that i did the same thing to but w/a little hotter mill ! the rear end blew out of the thing.the irs in those things are not designed to handle a grip of hp.

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