Quote:
Originally Posted by lucky1
It’s tri power, how and why ?
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Just open your throttle and secure it open. No fuel in case you have FI.
The engine needs air in the cylinders to do a compression test. It basically uses the air into the cylinder to show compression on the gauge.
Another good Idea is to disable your coil, remove the positive wire off the coil.
I turned mine over about 4 cycles. Your hoping for all cylinders to achieve close to the same pressure. like 170 to 180 psi for example.
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 10.12@133 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
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