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    Thread: High vs low RPM

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    1. #21
      Join Date
      Aug 2008
      Location
      Pgh, PA
      Posts
      2,177
      Quote Originally Posted by G-man View Post
      wmhjr - just for clarrification...



      Thats Big Block?


      Thats Big Block also? Going far longer between rebuilds, saying the engine will last a lot longer (more durable/reliable)?

      While SB = lighter/better weight distribution? This can be overcome via other means if the choice is BB though cant it?
      What I was trying to say is that you can certainly build a SB to generate tons of low end torque, but you'll make sacrifices. How exactly do you generate torque low? Think about it. Really it's like I said, this discussion isn't really about high vs low rpm. It's about more than that. Take for example the engine in a Honda S2000. Great little engine that makes good power. But down low it's not a rocket. You need to KEEP the motor revving high to make power. Now, if you could generate a flatter tq curve it would be a different story.

      But yes, I stand by my point that a flatter and higher tq curve motor that doesn't need to spin as hard and has more meat (like for example a long stroke BBC, a poncho SB) may be a more "driveable" and "reliable" choice for a mainly street car. For a pure race car it's way different.
      '66 GTO Vert Project "Red Ink", 462ci of stroked pontiac power, TKO600, SC&C Stg II+, Tubular lowers, Currectrac Rear suspension, Moser 12bolt w/Truetrack, Wilwood Master and discs all around, too much fun for words...





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