Thread: Not this again.
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Old 11-11-2017, 12:42 PM   #1358
LS1ow
Power Member / trans break does not equal transbrake
 
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Quote:
Originally Posted by sweetbmxrider View Post
I'm not following you, it all sounds normal
The piston is at TDC twice for every rotation of the cam. 1 time at the start of the 4 stroke cycle/end of old cycle, 1 time at the halfway threw at the end of the compression stroke/start of power stroke.

When the timing gears are Dot to Dot it is TDC at the end of the cycle/start of new cycle. When the timing gears are both Dot at 12, it is at TDC, but the cam as at the end of the compression stroke/start of power stroke.

Which TDC should it be timed at ?
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99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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