LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

230/238

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Old Feb 18, 2004 | 02:35 PM
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230/238

I like the 230/236 cam and i love the 306 cam. Wanting a little street manner, i was going to go with 230/236 untill i saw the 230/238 cam with .565/.565

A lot of the 230/236 cams had a smaller lift and my heads flow the best a little better closer to the .550 marker and no better past the .600.

Would this be alittle of both worlds. Having the 230 with alittle bigger exhaust open. Cause the lift is were i want it and the CC230/236 cam only offers a .544/.555

Plus what exactly is LSA i have a good idea but does this have anything to do with the power curve. The reason i don't want digger then 230 is cause of the RMP to get the full power. Stock i know is 114 stroker sometimes have 110LSA, but what would the difference be in a 112LSA and 113LSA or 111LSA?

Last edited by 1BadBrd; Feb 18, 2004 at 04:08 PM.
Old Feb 18, 2004 | 02:47 PM
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When you tighten the LSA (lobe seperation angle)...or make it a smaller number in layman terms; it moves torque to lower RMP, builds higher cyclinder pressure, idle vaccum is reduced, piston to valve clearance is reduced, also increases maximum torque. LSA I think plays an extremly important role when deciding to pick out your cam....knowing that, you can tell what the differences between 110 LSA, 112 LSA, 113 LSA...etc......
Old Feb 18, 2004 | 02:54 PM
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Lobe Separation Angle determines where in the power band the torque peak will occur. A short separation angle (below 108 degrees) makes the torque build quickly, peak early in the power band, then fall off quickly. Short separation angles produce a "peaky" torque curve. A long separation angle (above 112 degrees) makes the torque build gradually, peak later, and drop off more slowly. Long separation angles produce a "flat" torque curve.



Not trying to confuse...just tring to explain it better!
Old Feb 18, 2004 | 03:18 PM
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that also depends upon the amount of overlap involved as well.
Old Feb 18, 2004 | 05:20 PM
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ttt
Old Feb 18, 2004 | 08:35 PM
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ttt?


what information do you need to have? what question are you asking?
Old Feb 18, 2004 | 09:42 PM
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well i talked to someone who has the cam from Herald Brookshire ans the guy who has the cam said it's performance was great do to the design in the lobes. He said they were boxy almost not as steep as other cams. I didn't know if that had anything to do with the LSA, but he said it was the design, probably guy Herald Brookshire is working for Lunati.

But also i don't want to rev the enigine really past 6500 to get to total power. so that was also why i want to if a regular cam that peaked at 6500 could be moved closer to 6000
Old Feb 18, 2004 | 09:59 PM
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If you advance the timing, then you could achieve what your looking for. Not too sure on exactly how much you would be able to advance it, but if you advance it by say...4 degrees, then you will move the RPM powerband down 200 RPMs.

But I would honestly suggest a cam thats already set-up to suit your needs.
Old Feb 19, 2004 | 08:47 PM
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TTT
Old Feb 23, 2004 | 12:22 AM
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Originally posted by 1BadBrd
TTT
You sound like a good canidate for a HOTCAM... Should be the PERFECT cam for someone with the size skirt you appear to be wearing
Old Feb 23, 2004 | 12:35 AM
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Old Feb 23, 2004 | 12:37 AM
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Holy $hit you already have a HOTCAM HAHAHHA Wow you must be stepping up to a dress from that skirt eh
Old Feb 23, 2004 | 09:00 AM
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I knew what you wre meaning by that i might take offense
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