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  1. #1

    S2000 weight reduction guide

    Ive been collecting weights for a while now and stockpiled them into the following table to help others with their weight reduction endeavours.
    Don't believe the weights you read on the internet haha


    1. removed stock ignition cover
    = -310g

    2. removed bonnet prop
    = -390g

    3. removed under hood insulation mat
    = -650g

    4. replaced stock intake with js racing intake
    stock intake = 3.3kg
    js racing intake = 2 .3kg

    = -1kg

    5. modified stock header
    stock with heat shields = 11.3kg
    stock with heat shields removed = 9.3kg
    stock with tabs removed = 8.4
    stock heat wrapped = 9kg

    = -2.3kg

    6. replaced stock cat with TP
    stock cat = 5.3kg
    stock cat with heat shields removed = 3.9kg
    invidia 70mm TP = 1.7kg

    = -3.6kg

    7. replaced stock exhaust with titanium single
    stock exhaust (catback) = 23kg
    byp 70mm single titanium exhaust (catback) = 4.2kg

    = -18.8kg

    8. removed air pump assembly
    = -3.8kg

    9. removed A/C system
    = -12.5kg

    10. removed horn assembly
    = -185g

    11. removed window/headlight washer system
    washer bottle and motors = 1.51kg
    washer bottle capacity = 5L/5kg
    associated tubing = 390g
    headlight washer pieces = 200g

    = -7.1kg

    12. removed stock sized battery and replaced with lightweight battery
    stock battery = 12.1kg
    lightweight battery = 7.1kg

    = -5kg

    13. replaced stock steering wheel with momo/quick release and hub
    stock steering wheel = 2.8kg
    momo+QR+hub = 1.8kg

    = -1kg

    14. replaced driver side seat with bride zeta 3 type L fixed back
    stock seat + rail = 15.3kg
    bride zeta 3 typle L + rail = 11.3kg

    = -4kg

    15. remove passenger side seat (track day only)
    = -15.3kg

    17. removed sun visors
    = -480g

    18. removed wind stopper
    = -480g

    19. removed padding/insulation/sound deadening under carpet
    = -4.3kg

    20. removed passenger airbag + bracket
    = -3.5kg

    21. removed stereo system
    alpine headunit = 1.5kg
    stock AP1 speakers = 1.2kg
    ipod + cords = 200g

    = -2.9kg

    22. replaced soft top strikers with RSG race brackets
    Stock soft top strikers/catchers = 1.3kg
    RSG race brackets = 225g

    = -1.1kg

    23. stripped boot area
    spare tyre = 11kg
    tool kit and log book = 3kg
    rear trim pieces = 2.7kg
    sound deadening = 1kg

    = -17.7kg

    24. fitted hardtop and removed soft top
    stock AP1 soft top + motors = 30.6kg
    forbidden frp hard top w/ 2 piece rear brackets = 13.8kg

    = -16.8kg

    25. replaced stock bonnet with carbon vented bonnet
    stock bonnet = 7.6kg
    carbon vented bonnet w/ aerocatch latches = 7.5kg
    removed factory latch system = 495g

    = -610g

    26. replaced stock side mirrors with APR GT mirrors
    stock mirrors = 2.5kg
    APR GT mirrors = 770g

    = -1.8kg

    28. replaced stock AP1 wheels with 17x9 ce28 and added tpms sensors
    stock AP1 rims and RE002 tyres = total 72.2kg
    ce28 with 245 RS3 tyres + tpms = total 69.6kg

    = -2.6kg

    29. replaced stock lower ball joint with camber offset ball joint
    stock ball joint = 1.5kg
    hardrace camber joints = 1.2kg

    = -300g

    total
    =113.2kg (everyday driving)
    =128.5kg (track days)
    Last edited by Todxxx; 11-04-2017 at 04:20 AM.

  2. #2
    updated the OP.
    another 8.6kg taken form the car. total weight reduction is now up to 97.1kg

  3. #3
    Recently stripped out AP1 soft top assembly with a few interior trim pieces and insulation etc
    30.6kg
    Forbidden frp hardtop with rsg race brackets is 13.8kg

    So 16.8kg saved

    Also replaced standard sized battery with a pc680 and saved another 5kg

    Brings my total weight savings up to 98.5kg (street trim) and 113.8kg (race trim)

  4. #4
    Member Array
    Join Date
    Sep 2003
    Location
    Melbourne
    Car:
    Honda S2000 Honda CRX
    This is the best thread ever.

    Mate well done on sharing what you've done. These things take time and cuts out a lot of time for us.
    You know how much weight contributes to acceleration so losing 100kg is massive.
    Did you take out the stereo? You can swap the glass in our door windows to perspex, it looks very similar but obviously another 5kg or so lighter.

  5. #5
    Quote Originally Posted by CRXONE View Post
    This is the best thread ever.

    Mate well done on sharing what you've done. These things take time and cuts out a lot of time for us.
    You know how much weight contributes to acceleration so losing 100kg is massive.
    Did you take out the stereo? You can swap the glass in our door windows to perspex, it looks very similar but obviously another 5kg or so lighter.
    thanks man
    i just did it cause there's a few threads on it on s2ki on this topic and so many discrepancies and estimations of weights etc
    i dont personally know how much difference it makes but im sure i could find the formula and do the calculations

    i still have stereo and glass man. im building the car to clubsprint specs so the glass wont be replaced but definitely a lot of weight to be saved there

  6. #6
    Member Array
    Join Date
    Dec 2008
    Location
    835 Beaufort St
    Car:
    hondie 2000
    Assuming you are changing from mass 1300 kg to 1200kg

    you will get an 8.3% increase in acceleration

    the real benefit is when you don't heat your brakes and wear your tyres as much
    S P A M | W O R K S
    hehe.
    PHC


  7. #7
    Member Array
    Join Date
    Sep 2004
    Location
    Adelaide & Melbourne
    How much do you weigh mate? If you're a big unit like 120kgs, you could go on a diet and drop another 60kgs!

  8. #8
    Haha I'm 6ft 4 and 82kgs. I'm lanky as ****.

    I race the car so any weight loss is good. I could lose a lot more from the car but Im not going crazy/want a full interior still etc

  9. #9
    Quote Originally Posted by curtis265 View Post
    Assuming you are changing from mass 1300 kg to 1200kg

    you will get an 8.3% increase in acceleration

    the real benefit is when you don't heat your brakes and wear your tyres as much
    True!
    The s2k being NA isn't going to benefit from the acceleration as much but the braking difference helps massively.

  10. #10
    Just to be clear, I'm not going for the lightest race car here. What I'd like is once I've added stuff like a roll bar, aero, oil cooler etc is to be at the same weight as stock.
    Should be fairly achievable with my goals.

  11. #11
    You are my inspiration Todd.

  12. #12
    updated the OP
    a lot more weight reduction has taken place
    i guess you would call this stage 2 with the reductions getting a bit more serious now.

    stereo system removed (headunit, speakers and ipod) = 2.9kg
    passenger airbag and bracket = 3.5kg

    Also couple more things coming up so stay tuned for them too

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