Old 11-24-2007, 10:24 AM
  #16  
r8ceredy
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MASTER JOURNEYMAN
 
Join Date: Jun 2004
Location: Lowell, IN
Posts: 47
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Originally Posted by Pwmax
Here is one of those situations again, when its a street car, where, a guy is worried about loosing "low end tq". Not bashing anyone here, just trying to put a different perspective on that whole magazine phrase. I would agree, its a lot easier making power with more cubic inches for sure, but this is a case where its going to be rediculously over kill, which, some guys like, lol.

That cam is way to small for a 582. It will make all the tq low in the rpm band, where, that car will NEVER hook it. In fact, it will be down right dangerous. I have customers with more 100 less cubic inches, that have put similiar cars, in the ditch, and almost wrecked the car, or died, because the car got completelty out of control. One guy, called me and told me he switched tires, because he was killing his Hoosier quick time pros, before he even made it to the track, so he put his old BFG Radial T/A's on it, to save his good tires. I said, be very careful. Huh he said. I said, don't do what you used to, going 50-60mph on the highway, drop it into second, from drive, and hammer it. Why? You will end up in the ditch. He didn;t listen. Called me a few days later, and told me you were right. Going 50, dropped it into second, hammered it, and ended up in the ditch on the other side of the road, faster than he could react. Car lit the tires, got out of shape, he paniced, lost control, and put it in the ditch. Did about $2000 worth of body work damage, and lucky he didn;t get killed.

That was only 461 cubes, that made 600hp, and 575 tq. Thats 1 story, there are others. With 582 inches, and monster tq, my guess, would be somewhere over 750+ ft/lbs at fairly low rpm, 4500, somewhere in there, with the above combo, in that chassis, it will be hairy. If that sounds fun, than do it, but, just be careful is all I am saying.

If you think about it, trying to kill low end power in a true street car, with limited tires, and chassis, is a good idea. Purposely do things to reduce tq, and shift peak power up top. This thing will make a ton of power regardless, and still be a tire frier supreme. Thats just my advice from expierience.

Frank
Advanced Performance
www.get-ap.com
Frank, that is the advise I am looking for. I have always ran SBC and am finding out this is a whole 'nother ball game. What general cam specs would you recommend for a solid roller to lose some bottom and gain more middle to upper band? I still don't want to rev much over 7500 for parts livability. I am buying good parts that are all on the overkill side of things because I am tired of building an engine that is "just enough" and wanting to go faster only to have to tear the engine apart and throwing $$$ out the window. With my previous small blocks if the heads/cam were too big it was a DOG on the street that wasn't much fun. I laugh at myself for what I am doing so I don't take offense for anyone's comments and truly appreciate the feedback. ops: ops: ops:
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