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Big Horsepower/ Pump gas

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Old 08-25-2007, 01:38 PM
  #21
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Tim Grose 269-561-6000 Valve srings = single bee-hive/ 140 lbs on the seat, timing 26, boost 14 lbs ( if I remember) Let it spin.

Thanks for some specks.I guess the effciency of the combustion chamber is the reason behind the timming being low.Just think what he could do with a motor for the Hot Rod Mag Pump Gas drags in Memphis Tn.Theres some pretty stout #'s there runing on socalled pump gas

http://www.youtube.com/watch?v=_vp0h7eHzDE
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Old 08-25-2007, 02:16 PM
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some one should get Tim to jump on here and keep us informed sounds like a hell of a motor i am not sure about that high of rpm for marine use
Mike I wonder with the Fast could he get it to Idle very low? I would think at 7k + rpm it would considered to be a hot poker run motor or a race motor.
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Old 08-25-2007, 02:29 PM
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Tim Grose 269-561-6000 Valve srings = single bee-hive/ 140 lbs on the seat, timing 26, boost 14 lbs ( if I remember) Let it spin.
That seat pressure is almost enough for a hyd. roller camshaft. NO where near enough for a mech. roller
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Old 08-25-2007, 05:41 PM
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That seat pressure is almost enough for a hyd. roller camshaft. NO where near enough for a mech. roller
Dean what if its because on a small or lite valve? since it has 2 each?
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Old 08-25-2007, 06:38 PM
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Dean what if its because on a small or lite valve? since it has 2 each?
possible
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Old 08-25-2007, 07:55 PM
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possible
What about the b hive spring being a progressive rate spring? I not real familiar them tough.But being at 15 psi?
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Old 08-26-2007, 10:22 AM
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Mike I wonder with the Fast could he get it to Idle very low? I would think at 7k + rpm it would considered to be a hot poker run motor or a race motor.
Tim is claiming 900 rpm idle with very little if any blower roll.
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Old 08-26-2007, 10:23 AM
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Dean what if its because on a small or lite valve? since it has 2 each?
Yes on the valve weights also no lifters or pushrods.
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Old 08-27-2007, 12:25 PM
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Here's a link that works, Cool motor.
http://www.youtube.com/watch?v=eQwvSbQFA9U
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Old 08-27-2007, 12:34 PM
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Here's a link that works, Cool motor.
http://www.youtube.com/watch?v=eQwvSbQFA9U
[YOUTUBE]http://www.youtube.com/watch?v=eQwvSbQFA9U[/YOUTUBE]
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