Hi all,

I been thinking of upgrading my lower pulley be getting a kit for my XKR with the 4.0 engine running the Eaton M112 as I like to get the additional 40-40bhp
of power in the mid range.

my question is - is this something You can recommend?

what is the up vs down side?





many thanks in advance

/Salo
lower pulley upgrade

 

I decided to skip this upgrade and follow other members advise..
it seams that spinning the Eaton charger not gives the result I want, I really would like
to have the twin screw kit upgrade, so I wait and save money for this.

cheers

 

I have a lower pulley sitting on my bench waiting for install. I will report back with the results. I do have a water injection system on my car so heat is slightly less of a concern...

 

great - many thanks !