lb7 prv valve

[dracing70]

is the prv valve on a lb7 on the small manifold in the valley between the two main rails and if so which side is it on on the manifold driver or passenger

 

[dracing70]

just found it driver side right???

 

[2500HeavyDuty]

you mean the FPRV on the lb7? is in the valley on the driver side on the junction block.

 

[dracing70]

so to block it off is there any benefit to pipe pluggin vs welding it shut???

 

[2500HeavyDuty]

well one is reversible the other isnt

 

[x MadMAX DIESEL]

Not sure if the lb7s have a hose nipple on the end of the FPRV or if it's hard line, but you should try doing a bottle test if it does have a nipple to hook a hose to

 

[dracing70]

i did some thread searchin and found some illustrations on pluggin it .. it looks much more solid i will attempt this. hopefully i pick the right banjo bolt. lol

 

[2500HeavyDuty]

Not sure if the lb7s have a hose nipple on the end of the FPRV or if it's hard line, but you should try doing a bottle test if it does have a nipple to hook a hose to

it does not, but it can be tested i hear, but to test it, it takes the same ammount of work to do the test as it does to mod the FPRV. and its burried under stuff too, takes like 20 minutes to get to.

 

[maine04max]

I have not heard many people talk about modding the lb7 fprv as most do on the newer models . is this needed ? and if so at what level power do most guys do this?

 

[juddski88]

craig, i had to do it...and i gained approx. 2000 psi at the rails

 

[maine04max]

ill have to add this to my todo list