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Bad cam ls3. Why

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Old 10-30-2017, 04:45 PM
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The springs were PRC I believe. Part of their kit.

They tested:
136lb @ 1.800 installed height
432lb @ 1.125 .660 Max

My cam was .629 lift

So, a little light on seat pressure

The bottom end looks good. Rod bearing are perfect and mains had a few groves, but nothing to worry about. A few metal flakes in the pan but the filter was full and looked like metallic paint. Time to shop for some forged rods and pistons. Oh, and a smaller SC pulley
Old 10-30-2017, 10:45 PM
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Originally Posted by badass68
The springs were PRC I believe. Part of their kit.

They tested:
136lb @ 1.800 installed height
432lb @ 1.125 .660 Max

My cam was .629 lift

So, a little light on seat pressure
i doubt they still have that open and closed pressure after 25,000 miles.

but, if they check out, process of elimination i guess.
Old 10-31-2017, 09:05 AM
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Originally Posted by dreadpirateroberts
i doubt they still have that open and closed pressure after 25,000 miles.

but, if they check out, process of elimination i guess.
Ok...... I checked them with a load cell thats calibrated yearly, so I'm pretty sure my measurements are more accurate than most machine shops.
Old 10-31-2017, 11:03 AM
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Originally Posted by tech@WS6store
The cam is oiled first then down to mains. Thats likely why.

Also the stock barbell allows ALOT of larger particles by as well as the stock in pan bypass and filter bypass. Thats why youd plug them with the Saccity kit we have and use the better barbell to decrease foreign particle size/bypass anyway.
That's why I like priorty main oiling...
Old 10-31-2017, 11:50 AM
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I think most of us do, but that is dictated by engine design, which most of us have no power over.
Old 10-31-2017, 05:44 PM
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Originally Posted by badass68
Ok...... I checked them with a load cell thats calibrated yearly, so I'm pretty sure my measurements are more accurate than most machine shops.
like i said, if they check out, then it's process of elimination--obviously something else.

i just find that highly surprising.



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