What is required to make my S1 Mi16 engine Euro spec?
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  1. #1
    Tadpole
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    Default What is required to make my S1 Mi16 engine Euro spec?

    Hi all,

    Perhaps someone can advise me on what mods are required to get 160hp, or Euro spec numbers out of my Mi16? Has anyone done it? Is it too much work to justify the performance gains, or is there an alternative (while keeping the car economical and drivable as a daily)?

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    Thanks, in anticipation..
    Nigel

    1992 Peugeot 405 Mi16
    2008 Peugeot 308 XSE Hdi
    1998 Maserati Quattroporte Ottocilindri
    1997 Maserati Ghibli GT
    1995 Maserati Ghibli
    1990 Alfa 75 3.0 V6
    1967 Alfa Giulia Super
    1961 BMW R69s

    Past:

    1989 Peugeot 405 Mi16
    1985 BMW M5
    1968 Fiat Dino 2000 coupé
    1964 Alfa Giulia 1600 Ti
    1994 Alfa 164 Green Cloverleaf (24v)
    1979 Alfetta 2.0
    1983 Alfetta Migliarata
    1984 Alfetta GCL
    1969 Alfa 1750 Berlina
    1968 Alfa 1750 Berlina (T'Spark)
    1974 Alfa 2000 Berlina

  2. #2
    1000+ Posts pgti6's Avatar
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    AFAIK, there were 3 main differences between the XU9J4 (160hp) & XU9J4Z (148hp).

    1. Different pistons to increase the CR to 10.4:1 up from the 9.7:1 of the 'Z' version (ours here in Aust). The higher CR pistons are marked with a letter 'Z'. The low CR are marked with a letter 'X' on the piston crown.
    2. Different inlet cam gear marked as '2' instead of '3' (+3 crank degrees),
    3. No catalytic convertor

    Whether it's justified would IMO depend on if your engine needs a rebuild or not. It might be better just to fit one of PeterT's range of aftermarket cams to get a performance increase.
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  3. #3
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    Default Avatar ??

    Hi
    With your Avatar are you seriously expecting an answer.

    Even Pugnuts have their pride
    jaahn

  4. #4
    Tadpole
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    Quote Originally Posted by jaahn View Post
    Hi
    With your Avatar are you seriously expecting an answer.

    Even Pugnuts have their pride
    jaahn
    haha, i'm a pugnut too, be assured, i just don't keep all my eggs in the one basket.. Actually, i have not posted since before i owned a french car, hence my avatar. But i'll see to it...
    Nigel

    1992 Peugeot 405 Mi16
    2008 Peugeot 308 XSE Hdi
    1998 Maserati Quattroporte Ottocilindri
    1997 Maserati Ghibli GT
    1995 Maserati Ghibli
    1990 Alfa 75 3.0 V6
    1967 Alfa Giulia Super
    1961 BMW R69s

    Past:

    1989 Peugeot 405 Mi16
    1985 BMW M5
    1968 Fiat Dino 2000 coupé
    1964 Alfa Giulia 1600 Ti
    1994 Alfa 164 Green Cloverleaf (24v)
    1979 Alfetta 2.0
    1983 Alfetta Migliarata
    1984 Alfetta GCL
    1969 Alfa 1750 Berlina
    1968 Alfa 1750 Berlina (T'Spark)
    1974 Alfa 2000 Berlina

  5. #5
    Tadpole
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    Default

    Quote Originally Posted by pgti6 View Post
    AFAIK, there were 3 main differences between the XU9J4 (160hp) & XU9J4Z (148hp).

    1. Different pistons to increase the CR to 10.4:1 up from the 9.7:1 of the 'Z' version (ours here in Aust). The higher CR pistons are marked with a letter 'Z'. The low CR are marked with a letter 'X' on the piston crown.
    2. Different inlet cam gear marked as '2' instead of '3' (+3 crank degrees),
    3. No catalytic convertor

    Whether it's justified would IMO depend on if your engine needs a rebuild or not. It might be better just to fit one of PeterT's range of aftermarket cams to get a performance increase.

    Thanks for the info Jeff. It's a great help. I was hoping the differences didn't include pistons... I've heard about Peter T's cams so perhaps i'll investigate further along those lines...
    Nigel

    1992 Peugeot 405 Mi16
    2008 Peugeot 308 XSE Hdi
    1998 Maserati Quattroporte Ottocilindri
    1997 Maserati Ghibli GT
    1995 Maserati Ghibli
    1990 Alfa 75 3.0 V6
    1967 Alfa Giulia Super
    1961 BMW R69s

    Past:

    1989 Peugeot 405 Mi16
    1985 BMW M5
    1968 Fiat Dino 2000 coupé
    1964 Alfa Giulia 1600 Ti
    1994 Alfa 164 Green Cloverleaf (24v)
    1979 Alfetta 2.0
    1983 Alfetta Migliarata
    1984 Alfetta GCL
    1969 Alfa 1750 Berlina
    1968 Alfa 1750 Berlina (T'Spark)
    1974 Alfa 2000 Berlina

  6. #6
    1000+ Posts PeterT's Avatar
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    A 0.7mm Cometic head gasket is an easier fix, along with a slightly bigger inlet cam.

    '92 205 Mi16
    '90 Mi16x4

  7. #7
    1000+ Posts cav91's Avatar
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    Where do you get these head gaskets?
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  8. #8
    Fellow Frogger! rtsnoz's Avatar
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    Quote Originally Posted by cav91 View Post
    Where do you get these head gaskets?
    I've got one surplus to my needs (Petert ended up decking my block instead) if anyone wants one. I think I bought it from serco (?) in qld.


    Via the aussiefrogs App

  9. #9
    1000+ Posts cav91's Avatar
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    If the original thread starter doesn't want it I'd be interested
    2011 Renault Koleos manual petrol, yes it's boring, but not as boring as:
    2017 Renault Koleos auto

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