LB7: lbz regulator mod and drivers manifold are they worth it?

[strongsperformance]

Thanks guys for responding to my previous threads. Now a new question or two.

Basically I installed all my mods then Idaho robs dsp 5 and truck ran strong then cp3/reg failed so I installed new reg on a lowlow mileage cp3 and now im down on power.now my operating fuel rail is 21000 before it was 23000/24000. I spoke with rob and he said the demand for tune is 27000. Is all I have to do is install a lbz regulator or do I need the whole cp3?
Next is it worth doing the drivers manifold or maybe rick at profab's manifold and up pipes. Or nothing at all?
thanks again

 

[cafryer]

Ive got a drivers side manifold and did not notice much.

 

[strongsperformance]

Anyone have any concrete evidence that a lbz reg swap will definitely add fuel rail pressure.

 

[ZeroGravity58]

It did for me. I picked up around 2-3000 psi on the same tune just swapping tete and adjusting the b1010 table

 

[Kspen90]

If I remember correctly didn't your new cp3 come off an lbz? If so then I would think you almost have to have the regulator designated for that pump or it will not get the right pressure.

 

['03duramax]

Maybe try a Wicked Diesel fpr

 

[paint94979]

If I remember correctly didn't your new cp3 come off an lbz? If so then I would think you almost have to have the regulator designated for that pump or it will not get the right pressure.

Not true... If I was you I would change to an LBZ regulator but don't bother changing to a BD manifold

 

[strongsperformance]

Not true... If I was you I would change to an LBZ regulator but don't bother changing to a BD manifold

Yes I agree. i have a lly cp3 on my lb7 but a new lb7 fpr.
my tune is calling for 27000psi and im only able to muster a lousy 21000psi at a 100% throttle. But when I let off pedal it spikes to 26000psi momentarily
I think ill try the lbz reg.

 

[Noreaster]

I would do profab up pipes before a manifold, if you want to do a manifold the LML is alot cheaper