dmaxx
Member
What is the standard compression in lbs for Vipers?
Mtnviper said:Most Vipers (stock) are 110-115 mag, 125-130 ctr, mag measured at sea level on cold engine.
viperken said:I checked two vipers with low miles (1600 +/-) and the PTO was 115, center 125 and Mag 125 PSI. These readings were taking when the engine was warm.
Don't forget not all compression testers read the same. Some get weaker over the years.