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Thread: the (ae86) weight reduction thread

  1. #1
    Veteran slydar's Avatar
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    Default the (ae86) weight reduction thread

    im about to start a build on a hatch back (ae86).

    i would like to hit the the low 800s with a fairly "normal" initial set up/build.

    plans so far are -

    normal 16v 4age

    t50

    t series rear axle

    JDM doors gutted with NO windows.

    3mm polycarbonate side windows.

    no trim, seals, window moulds etc.

    3/5mm polycarbonate rear hatch window.

    JAZ (brand) poly seats

    no dash

    no cage

    14x6.5/7" volk 3pc wheels

    FRP bonnet

    small dry cell battery

    scratch built loom

    and a few other little ideas ive been thinking about for a while.

    initially i want the car to look fairly normal from the outside, something you could almost get away with on the street.

    i plan to use the car for a variety of motor sport. initially drifting as it is the most accessible/familiar to me. but also sprints and hill climbs. with maybe a view to it evolving into more of a sports sedan later on (which wouldnt really preclude it from participating in any of those disciplines later).

    ive had a dig around our forum and others but havent come up with a lot of hard numbers re whats realistically achievable.

    i am intersted in people posting links to build/tech threads with info on what people have done and actual measured results, or weights of their own cars and a quick run down of specs/mods.

    the purpose of this thread is to get a realistic idea of what sort of numbers are actually achieveable.
    Last edited by slydar; 10th January 2012 at 03:00 PM.
    78's

  2. #2
    Veteran McLEVIN's Avatar
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    Default

    well i would say you will need to replace all panels, hatch and bonnet with frp/carbon...i would assume you've seen mcnsports ae86 thats supposedly one of the lightest 86s around
    MOPAR or no car!

  3. #3
    Veteran slydar's Avatar
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    Default

    ive seen threads discussing that car and its weight on driftworks, from what i remember towards the end of the thread, with its current set up, with the rotor and cage darren actually claims well under 800kg. im not sure i beleive that personally. but to be honest that gives me optimism.

    for stage one, i plan NO cage and normal driveline so i would have to be a good 50kg ahead of him there.
    78's

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    Veteran willa's Avatar
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    Default

    Also exhaust is a big place to have a win. No muffler is the easiest and cheapest way, or where mufflers are needed keep them short and sweet.



    ...titanium ftw
    SuperFunHappySliders

    SR's are ghey.

  5. #5
    Senior Member AIROCOBRA's Avatar
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    Default

    Here is some inspiration for you all --- here are a few forced weight reduction mods on my Khanacross 86.



    ONLY THE GOOD DIE YOUNG ------ I MUST BE VERY VERY VERY BAD

    AE86 4AGE 16V N/A TRACK CAR ( RED )
    AE86 ROLLING SHELL --- IN CASE i F-CK UP !!!!!! (PRIMER )
    AE86 ADM UNDER CONSTRUCTION ( STREET CAR) 4AGE 16V , (RED )
    AE86 Trueno ( RESTORE TO PERIOD GOODNESS ) White
    AE86 4AGZE Wreck ( to be rebuilt into Khannacross fun car )
    KE 15 x 2 -- SPRINTER ( RESTORE TO PERIOD GOODNESS ) RED
    TE72 (T18) X 2 BIT OF PAINT , BIT OF MECHANICAL way we go RED
    Soarer 1995 1JZ Factory 5speed (R154 )

  6. #6
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    have a look at the hot version N2 video's and see what extremes they go to and they weights they are achieving.
    from memory they range from 790kg up to 900kg for some of them

  7. #7
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    Standard empty ADM AE86 fuel tank is approx. 13kg whereas an empty 45 litre polyurethane fuel cell is approx. 5kg.
    Pitch sound deadener in an ADM AE86 is approx. 20kg.
    Last edited by ehendrikd; 10th January 2012 at 07:57 PM.

  8. #8
    Veteran johl's Avatar
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    d-mac makes a fibreglass roof replacement i believe. that will be a good c.o.g saving item. if you were to run fibreglass rear over fenders you can get rid of almost all the metal behind the rear strut mounts. as you said it would look normal from the outside but it would just remain a skeleton inside.

    similar to this but retaining the where the tail lights and shit go
    stroked 2L ca18-ae86 in the build...eta xmas 2012?

  9. #9
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    CSO Japan make a carbon roof skin... *dreams*

  10. #10
    Senior Member s13 james's Avatar
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    in the pic above of white 86,what is he going to do with the rear end?

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