LBZ FPR in lb7/lly

[S Phinney]

For the truck to achieve 180 mpa the tune has to be written for that. The pressure tables will have to account for the desired pressure at a given mm3.

 

[Redbowties88]

well, huckstork ****ed up my order so it looks like now i need to wait till next weekend.

 

[03 D-max]

Correct, and I think he asked the follow up question with the 26k rail pressure, could be wrong tho.

I bet you can hit 26k with the lb7 regulator, I havent tried it yet tho. And some people have had the rail pressure safety valve, like a rail pressure blow off valve, open at 24500, some 25000+, we dont have to "shim" our valves so they hold rail pressure

my blow of valve is plugged and i couldnt hit 26k for the life of me. I have a modded lbz in it now and have no trouble at all.

 

[Bryce418]

I run tunes that make 190mpa with a stock lb7 regulator.

I also think that a lbz unit would probably be easier to maintain that with 3000+us tunes.

 

[DIESELMAFIAPER.LB7]

I held 190 mpa with a 3250pw tune with the lbz regulator but now with the nozzles can't even hold a 2200 pw above 20ksi so need a bigger pump now

 

[nmband13]

I held 190 mpa with a 3250pw tune with the lbz regulator but now with the nozzles can't even hold a 2200 pw above 20ksi so need a bigger pump now

Thats like a 3150pw with stock nozzles(if you do the math with 45% over's), sounds like you need a bigger pump or yours is worn out from all that 190mpa you demanding

 

[rcr1978]

I held 190 mpa with a 3250pw tune with the lbz regulator but now with the nozzles can't even hold a 2200 pw above 20ksi so need a bigger pump now

Did you put a LBZ/LMM sensor on cause stock LB7 rail pressure sensor from my findings won't read above 183.4 mpa on my truck

 

[rcr1978]

I need to fix my previous post, I was looking back through my logs and on my tune I was asking for 175mpa and was peaking at 183mpa on a let off or shift spike so it may read higher just thought that it was all it would read cause I only have my dashboard set to 180mpa I know the sensor scaling goes to 200mpa will it actualy read that high? Not sure I want to push my LB7's fuel system much higher than I already am also not sure how much pressure would hurt the injectors so I will stop where I'm at.

 

[S Phinney]

The harder you push the injectors the sooner they will wear out. So keeping them 26k and under and preferably 23k and under will help them live a longer life.

 

[DIESELMAFIAPER.LB7]

I read only like 26850 or something like that but I only command 180 now but I'm only getting 19.5-20.5 ksi need more so now a arson III kit is coming

 

[paint94979]

With a stock LBZ regulator in my LLY pump on a 3300pw tune my truck would touch 25k then drop back down to around 22k

 

[DIESELMAFIAPER.LB7]

Mine on stock nozzles held a 3250 pw?? But like I said with nozzles dropped way down even at a 2200 pw

 

[sweetdiesel]

Mine on stock nozzles held a 3250 pw?? But like I said with nozzles dropped way down even at a 2200 pw

Does you turbo even clean up what you have now?

 

[DIESELMAFIAPER.LB7]

Does you turbo even clean up what you have now?

yep totally clean after 60' at the track i want to run a 2400-2600 pw is all 2200pw with 45% overs is like a 3250 pw on stock nozzles so im running no more fuel then stock nozzles maxxed out do