weight bias and control

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  • NoNonsense
    Forum Sponsor
    • Apr 2004
    • 673
    • Home: Italy Current: United States

    #1

    weight bias and control

    alright guys...here is what my engine bay used to look like...please don't mind the dirty coolant tank...I know, I know...literally looks like shnit
    Now here is what I have done:



    Now, my car is left hand drive, so my new battery location is opposite the driver, and obviously in the trunk. My former battery weighing in at approximately 21.7 Kilograms, and .6 meters in front of the front struts. Now, the battery is in the rear weighing only 11.8 kilgrams. Finally, I removed the front rebar (american POS) from my car too, so approximately 25 kilograms off the front. So in total, about 47 kilgrams was taken from the front and only 11.8 added to the rear.

    Would this drastically change the effect of my car's handling? I mean...would this cause the car from acting with understeer to behaving with much oversteer and lose of control in turns due to spinning sideways? I did an autocross this weekend, and i was all over the course. Also, it was 38 degrees C out and i don't think my car's hangling and tires would be involved.

    Cheers!
    Joe "NoNonsense"
    axis motorsport
    joe@axismotorsport.com

    "At the end of the game, the king and the pawn go back in the same box."
  • 91_S2
    S2Forum Maniac
    • Jul 2003
    • 612

    #2
    Joe,

    I have an S2 so that is where I am coming from. But I think Audi's in general tend to be front heavy. The figures 60% - 40% front-rear comes to mind. I will corner balance my car as soon as my adjustable coilovers are set up.

    Given that weight distribution, I think you are moving in the right direction towards a balanced car. But as you shift weight around, you obviously alter the amount of lateral weight transfer between the front and rear axels. But I don't think it should drastically affect handling. Try loosening the rear ARB a little if you are getting too much oversteer.

    Rich

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