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Thread: 7,000+RPM drop in hydrualic roller lifters?

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  1. #1
    Senior Member Killercanary's Avatar
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    Joe, I'm not familiar with Morels, but my dad still runs the stock lifters in his car an he has made pulls to 7000rpm without any hint of valve float or lifter problems. It doesn't make power up there, but we did it to make sure that we had eliminated an ignition problem.

    I know you have had unusual success with your OTS cam, and it may very well be the best fit for your combo, but I can't help but to imagine what a custom cam might do for you too. Have you thought about it?
    -Paul

    1995 GT 'vert
    Best times on old 302 combo:
    12.03 at 112.5mph NA
    Best time with 9:1 compression NA dart block 331 setup:
    11.50 at 121mph
    Dyno'd: 415rwhp/410rwtq


    2004 Z16 commemorative edition Z06
    100% stock: 11.9 at 118mph




  2. #2
    Not Bad for 367 SAE RWHP Pure Stock's Avatar
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    Quote Originally Posted by Killercanary View Post
    Joe, I'm not familiar with Morels, but my dad still runs the stock lifters in his car an he has made pulls to 7000rpm without any hint of valve float or lifter problems. It doesn't make power up there, but we did it to make sure that we had eliminated an ignition problem.

    I know you have had unusual success with your OTS cam, and it may very well be the best fit for your combo, but I can't help but to imagine what a custom cam might do for you too. Have you thought about it?
    Paul, Oh I think about it, probably more often than I really should. LOL! Well, I won't disclose any names but one of the "custom cam guys" and I had a lengthy conversation one evening a while back about my combo. As I started to reveal some of my parts to him he stops me mid sentence and asks me the static c.r. I'll tell him, "You know 9:1" He then says to me what's the best time it has run. I tell him and there is a 5 sec. pause. I thought the call dropped. He finally responds and says "Say that again" So I say 11.36 He then tells me we need to put more rpm in it. How much I ask? Shift points would check in @ 7,200. I think about it for a moment and then I think about those tiny 5/16" rods bolts. Ahh, let's make this a 6,500 peak power cam with shifts @ 6,700-6,800 TOPS. He then proceeds to tell me I need to switch from a hydraulic roller to a flat tappet roller. See, I like the hydraulic roller "set it and forget it" deal Second disagreement. He then tells me he is going to do some "calculations" and get back to me in 2-3 days. Well, 2 weeks pass by and no call. At this point I'm saying screw this I'll make thos OTS cam work no matter what LOL!! I finally get in contact with the "cam guy" and you know what he says to me Paul? I can't help you make any more power that will be justified with you spending the amount of money it will cost. I appreciated the honesty, but I did not appreciate the backburner ideaology. I'd never purchase a cam from this individual because of that. May sound harsh, but hey just because he couldn't help me out in this instance does not mean he couldn't help me out in another. 1 cam guy down 2 to go:D
    2011 Mustang GT, MT-82, 3.73's :

    BONE STOCK 12.223@115.18

  3. #3
    Big Daddy gmkillr's Avatar
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    7200??????????????
    On a stock block, rods, & pistons????
    Corvette Z06

    Growing up.............Not everyone does it!


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