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Thread: 84R Head work

  1. #1
    Join Date
    Oct 2002
    Location
    Canada
    --
    185

    84R Head work

    what kind of performance modification could be done on a 84r head exept shaving it ???

    i got 2 spare head so i could do some homemade performance mod again.

    ALP
    Beav
    When there's a place to Jump, there's always a place to land. Don't matter if it's hard or not. Gotta find the limits of your trike.

    1984 250r
    Mods : Uni filter, 36mm Flatside Carb, Boyseen Reeds, P&P with a little bit of port timing (more to come), High Comp. Head, DG Full Exhaust.

    1986 250R
    Just got it give me some time to mod it

  2. #2
    Join Date
    Sep 2004
    Location
    Phoenix, AZ.
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    6,719
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    2
    Home made? I don't know. You could have it ported though.

  3. #3
    Join Date
    Oct 2002
    Location
    Canada
    --
    185
    you mean more cc?
    When there's a place to Jump, there's always a place to land. Don't matter if it's hard or not. Gotta find the limits of your trike.

    1984 250r
    Mods : Uni filter, 36mm Flatside Carb, Boyseen Reeds, P&P with a little bit of port timing (more to come), High Comp. Head, DG Full Exhaust.

    1986 250R
    Just got it give me some time to mod it

  4. #4
    Join Date
    Sep 2004
    Location
    Phoenix, AZ.
    --
    6,719
    Blog Entries
    2
    No. Porting would be re-shaping the intake and exhaust ports. Making those larger allows greater flow through the top end which results in a power increase (an often dramatic one). I wouldn't recommend doing it yourself.

  5. #5
    Join Date
    Oct 2002
    Location
    Canada
    --
    185
    lolll i didn't mean cylinder work, it will be done in few days when i'll get it back. what i'm asking is some kind of angle and polishing job on the head or something like more or less cc chamber.

    ALP
    Beav
    When there's a place to Jump, there's always a place to land. Don't matter if it's hard or not. Gotta find the limits of your trike.

    1984 250r
    Mods : Uni filter, 36mm Flatside Carb, Boyseen Reeds, P&P with a little bit of port timing (more to come), High Comp. Head, DG Full Exhaust.

    1986 250R
    Just got it give me some time to mod it

  6. #6
    Join Date
    Mar 2004
    Location
    Fond du lac,WI
    --
    658
    he is talking about the the head

  7. #7
    Join Date
    Sep 2002
    Location
    Rittman, Ohio
    --
    6,276
    You cant change displacement with the head.

  8. #8
    Join Date
    Oct 2002
    Location
    Canada
    --
    185
    ok maybe but what about any other performance mod like polishing or angle job???

    ALP
    Beav
    When there's a place to Jump, there's always a place to land. Don't matter if it's hard or not. Gotta find the limits of your trike.

    1984 250r
    Mods : Uni filter, 36mm Flatside Carb, Boyseen Reeds, P&P with a little bit of port timing (more to come), High Comp. Head, DG Full Exhaust.

    1986 250R
    Just got it give me some time to mod it

  9. #9
    Join Date
    Oct 2004
    Location
    Anaheim
    --
    1,270
    htere is no angle job in a twostroke.... the only thing you can do is have the head reshaped, and milled... sorry no other stuff
    adam
    86 ATC 500R the duner..
    85 ATC 500R...the not quite finished faster duner
    1985 ATC 250R Bone stock!!
    1985 ATC250R mx/duner
    1986 TRX370R MX/Duner
    94 Banshee 400PV Cheetah 105RWHP

  10. #10
    Join Date
    Oct 2002
    Location
    Canada
    --
    185
    ok thx.

    ALP
    Beav
    When there's a place to Jump, there's always a place to land. Don't matter if it's hard or not. Gotta find the limits of your trike.

    1984 250r
    Mods : Uni filter, 36mm Flatside Carb, Boyseen Reeds, P&P with a little bit of port timing (more to come), High Comp. Head, DG Full Exhaust.

    1986 250R
    Just got it give me some time to mod it

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