Valve springs and mods 12 valve
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Rookie
Joined: Aug 2017
Posts: 66
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Valve springs and mods 12 valve
Hey folks new to the diesel sector but about to buy a 92 350 while looking at some upgrades that were common (3600 spring) the site said something about #60 valve springs an internet search revealed multiple different spring weights couple questions
1: what advantage /disadvantage comes with heavier springs
2: are they considered a critical upgrade
3: does changing the spring affect the drivability/workability of that motor
thanks in advamce
1: what advantage /disadvantage comes with heavier springs
2: are they considered a critical upgrade
3: does changing the spring affect the drivability/workability of that motor
thanks in advamce
Captain
Joined: Feb 2017
Posts: 684
Likes: 45
From: Southern OH
The 2 reasons for stiffer valve springs are to safely turn more than 3200 rpm or to use an exhaust brake. They don't effect drivabily at all, and a VE injected Cummins runs out of fuel before 3200 RPM so no need to turn higher rpms unless you P-pump it and have the mods to turn 4K rpm.