I was wondering if anybody knows the specs and differences are between the LMM and LBZ turbos are or if they are the same.

Thanks in advance

LMM turbo sucks more than the LBZ turbo does, lol. The LMM is the most restrictive stock charger and the LBZ is second best on that list. Actual sizes I don't know off the top of my head.

They don't run any different from what I can tell as my LBZ has a LMM charger on it with no tuning changes.

Thanks for the info guys.

LMM turbo sucks more than the LBZ turbo does, lol. The LMM is the most restrictive stock charger and the LBZ is second best on that list. Actual sizes I don't know off the top of my head.


Mark since you say the LMM sucks more what are the CFM's rates of the LMM charger as compared to the LBZ charger just curious?

Mark since you say the LMM sucks more what are the CFM's rates of the LMM charger as compared to the LBZ charger just curious?

I honestly don't know the flow rates of either just what the parts inside are. The LMM vanes are 1-2mm shorter than the LBZ vanes and the turbine in the LMM is reverse cut inducer tips like an LB7 turbine. The turbine has the same exducer size as the LBZ turbine. This is why I will only built a Stg1 LBZ charger. All my Stg2 chargers are built out of LLY's because they have the largest vanes( I have Jon "fingers" make me custom high-flow vanes for even more flow capacity).

They don't run any different from what I can tell as my LBZ has a LMM charger on it with no tuning changes.

I am sure that the vane positions are different and if you put a drive pressure guage in you would see differences there. Better question is why do you have an LMM charger on the Z???

There was shaft play in the LBZ and I had a new LMM charger collecting dust thus the change. And in stock form the drive pressure means almost nothing

I honestly don't know the flow rates of either just what the parts inside are. The LMM vanes are 1-2mm shorter than the LBZ vanes and the turbine in the LMM is reverse cut inducer tips like an LB7 turbine. The turbine has the same exducer size as the LBZ turbine. This is why I will only built a Stg1 LBZ charger. All my Stg2 chargers are built out of LLY's because they have the largest vanes( I have Jon "fingers" make me custom high-flow vanes for even more flow capacity).


Thanks for the info Mark.

Thanks for the info Mark.

No problem sir!


There was shaft play in the LBZ and I had a new LMM charger collecting dust thus the change. And in stock form the drive pressure means almost nothing

Sounds good to me. True, in completely stock form it might not matter but throw some power at it and it will make the difference. DJ's LMM we did just the opposite, stuck a stock LLY charger on it and it made a big difference in the way it runs. Drive pressure is a big player in your fuel mileage.

Do you get the same amount of boost from the LLY charger vs the LBZ or LMM turbos?

I am running a tow tune getting about 20mpg and don't ever plan on going any more because I have a built truck to play with;)

Do you get the same amount of boost from the LLY charger vs the LBZ or LMM turbos?

Yeap, that is controlled by the computer.

PitchBlackI am running a tow tune getting about 20mpg and don't ever plan on going any more because I have a built truck to play with;)

No doubt! Speaking of which, you swap them chargers yet?

I am in Salt Lake City for a little while. Should get the swap done in a week or so. Mark give me a call anytime you can before mid week Thanks