rail cap?

[WUnderwood]

can anyone fill me in on the rail cap? I dont have a clue what anyone is talking about.



at what PSI does the stock rail cap work at?



what are the benefits?



thanks in advance

 

[Diesel Power]

the stock relife valve is supposed to opperate at 26,500psi, but it rally does, after alot of use they will weaken and open as low a 18k---they are not of the best design on duty cycle, there will be some help on these valves soon, as far as a higher bursting psi and being able to rebuild them, info on that is in the R&D section of the tdr. the rail cap is a good item to have when you are tired of replacing factory failed valves it will eliminate the need for replacement of the valve again. i have run the cap for many miles and had no problem with the injectors in general but im sure somewher down the road they will be affected, as i run lots of pressure. hope this helps.