LB7: LBZ Fpr?

[SparkZ03DMAX]

What can I benefit from a LBZ FPR, what exactly in my tuning has to be changed once it's on? Should it be next on my little list?

 

[ZeroGravity58]

i picked up about 2K extra of rail pressure when i did mine with the same tuning. You need to adjust the B1010 table to get it to idle right.

 

[SparkZ03DMAX]

Does idle change a bit when it's installed? I've changed my FPR before, but I just replaced it with the LB7 one. My truck is starting to idle "lopey" again and I kind of figured I would get the LBZ one to smooth it out but it could also be because it's getting cold down here in NC

 

[SparkZ03DMAX]

Any more info?

 

[Operator1]

Raising the idle rpm a little can help to smooth it out. IIRC, the early duramaxes had a lower idle and LP pressure affects them more. If it was my little list, an arson kit would be a better addition IMO.

mispeeld with tapatalkz

 

[ZeroGravity58]

Does idle change a bit when it's installed? I've changed my FPR before, but I just replaced it with the LB7 one. My truck is starting to idle "lopey" again and I kind of figured I would get the LBZ one to smooth it out but it could also be because it's getting cold down here in NC

You will have to adjust b1010 to get the idle right. When I first started mine up it was idling at 18k on the rail. You have to adjust the first three blocks to get the idle where you want then blend the rest. That's what I did and it worked great for me. You could try changing the idle rpm also. I think the early trucks idled at 600 rpms and the later ones were 680 rpms.