NGM Diesel said:i was implieing, to the people who have there rails caped or bolted, there is no relief in the system and it will work fine for a while but as with any metal there is a amount of flexing it can do before it cracks. now the ones who have done this capped (me) now have a alternative( modded valve) with will still safe guard the system and allow for more power at the same time. it allows a blow off at 29,000 instead of 26,000 or lower. and if parts need to be freed up or replaced it is also done, so the the valve may now function properly.
So, 29,000psi is better on an injector than 26,000psi?
These kinds of mods are better left to the WFO type of Cummins owner.