Suspension and Chassis Questions about your suspension? Need chassis advice?

Why did this happen?

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Old Sep 26, 2004 | 08:22 PM
  #1  
Wishmaster's87IROC's Avatar
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From: Winston salem, NC
Car: 1987 1SICIROC.....1999 TransAm
Engine: 385 HSR.....LS1
Transmission: 700R4 with Midwest 3400 2.4str...M6
Axle/Gears: SLP Zexel Posi unit 3.42's...3.73's
Why did this happen?

I was curious as to how much my car would take before the rearend broke loose going around a corner so I dicided to find out.

I was taking an offramp exit which was up hill and to the right...you know big sweeping turn....

The rear never broke loose but the front tires lost traction and the car kept going straight....scrared the crap out of me....luckly there was no car coming as I went straight in the merging lane....and once I let off the gas the I was able to gain control of it....

Why did the front break loose like that and not the rear?
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Old Sep 26, 2004 | 09:01 PM
  #2  
PCS74's Avatar
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It is called understeer. It is designed into the vehicle by auto manufacturers because it is safer for the general public than oversteer.

Chris S
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Old Sep 26, 2004 | 10:29 PM
  #3  
ebmiller88's Avatar
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
In NASCAR terms, "too tight"...how big is your rear swaybar? Going down a size or two (From say 24mm to 22 or 21mm) should help this.


Ed
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Old Sep 26, 2004 | 10:36 PM
  #4  
383backinblack's Avatar
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From: Santa Monica, CA
Car: '91 Camaro RS
Engine: F1R Procharged 383
Transmission: Tremec 600
Axle/Gears: moser 12 bolt, 4.11's 33 spline axl
Originally posted by PCS74
It is called understeer. It is designed into the vehicle by auto manufacturers because it is safer for the general public than oversteer.

Chris S
ya know they always say that, but i really dont buy it
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Old Sep 27, 2004 | 11:49 PM
  #5  
vsixtoy's Avatar
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
Originally posted by 383backinblack
ya know they always say that, but i really dont buy it
It is true and I'll explain way (I't's simple enough that you know the answer yourself if you just think about what happens when this occurs)

Basically if you are on the gas around a corner and the starts to slide (whether frontend first, backend first, or both equally) the average persons initial reaction to an unexpexted loss of control is to lift off the throttle rapidly and brake.

If the nose is pushing straight, by lifting will slow and turn the car properly.

If the car is loose (*** end out), bby lifing and braking will further induce an uncontrolable end around and thus cause damage.

The understeer is much safer for the average driver, especially in a heavy downpour.
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Old Sep 28, 2004 | 12:14 PM
  #6  
rolling-robert's Avatar
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From: netherlands
Car: z-28 x2
Engine: 355ci and 305ci
Transmission: th350 and th350
also, you were going uphill, so the weight is transferred to the rear.
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Old Sep 28, 2004 | 12:24 PM
  #7  
Rembrandt's Avatar
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Plus, if you want the rear to break loose, use some throttle.

My car is hellaweak power wise so I have to restrict my drifting to rainy conditions in middles-of nowhere.
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