Water/methanol injection, can someone please shed the light?

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  1. Water/methanol injection, can someone please shed the light? 
    #1
    BMW Master
    Car Details
    m43ell's Car Details
    Model of Car:
    325 tds
    Year of Manufacture:
    1994
    Transmission Type:
    manual
    Car Body Type:
    saloon
    m43ell's Avatar
    Join Date
    Apr 2010
    Location
    gloucester
    Posts
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    Thanked 95 Times in 74 Posts
    Right, im looking at water/meth injection for my 325 tds, ive done various mod's to it so runs a little hotter however i would like to reduce temps as i know these heads are prone to cracking through heat increases, i hear alot of conflicting stories about them....firstly

    1) what is better, water, meth, 50/50 water/meth?
    2) are there any power increases to be had through doing water/meth injection
    3)where is it best situated, after the IC or inlet manifold?
    4) as its water, would it raise cylinder compression? im already running 1.5 bar boost so want to avoid anymore abuse beeing chucked at the cylinders

    thanks alot
    1993 E36 BMW 325 TDS with:

    egr delete
    super chipped
    boost controller @1.5 5th gear bar boost
    De cat pipe
    straight through turbo back, no backbox
    hard pipe turbo to induction filter
    Pefrormance FMIC with custom mandrel IC piping
    Water / methanol injection (being setup)
    increased injector duration (being setup)
    13t turbo upgrade (being setup)
    Solid engine mounts, braced front and rear, coilovers, lots of smoke
     
     

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    #2
    BMW Master
    Car Details
    m43ell's Car Details
    Model of Car:
    325 tds
    Year of Manufacture:
    1994
    Transmission Type:
    manual
    Car Body Type:
    saloon
    m43ell's Avatar
    Join Date
    Apr 2010
    Location
    gloucester
    Posts
    294
    Thanks
    86
    Thanked 95 Times in 74 Posts
    anyone?
    1993 E36 BMW 325 TDS with:

    egr delete
    super chipped
    boost controller @1.5 5th gear bar boost
    De cat pipe
    straight through turbo back, no backbox
    hard pipe turbo to induction filter
    Pefrormance FMIC with custom mandrel IC piping
    Water / methanol injection (being setup)
    increased injector duration (being setup)
    13t turbo upgrade (being setup)
    Solid engine mounts, braced front and rear, coilovers, lots of smoke
     
     

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