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Car squats under hard acceleration

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Old 04-28-05, 03:14 PM
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Car squats under hard acceleration

Ok so I was driving around having some fun and got on the power in 2nd gear. I only took it up to around 5k rpm but as it pulled I could feel it squat down which I know is normal, but when I let off, it lunged forward a bit more than I figured it would. Finally, when I pulled into my parking spot, I heard a very quiet clunk as a barely coasted into my spot. Any possibility that something is broken back there?
Old 04-28-05, 03:20 PM
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hmmm...i think we will need a better description of this clunk before anyone can help you. like when it happens if it continues and if it comes from the front or the back of the car etc. also, sounds like its time for some better shocks .
Old 04-28-05, 03:25 PM
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Its definately from behind me, it happend as I was turning into my parking spot. Drove up in 2nd gear, pushed the clutch pedal down and coasted in. As I was half way in the spot with the wheel turned it a was a small clunk, didnt really feel anything, just heard it.

As for the squatting, the nose of the car came up but it kind of surprised me how far up it was, then dropped off quite hard once I let off.
Old 04-28-05, 03:28 PM
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Could your e-brake be stuck applying some pressure?
Old 04-28-05, 03:34 PM
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Originally Posted by Gatlin
Could your e-brake be stuck applying some pressure?
I dont think so, my e-brake light isnt on or anything, and its not hard to get the car moving.
Old 04-28-05, 03:43 PM
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if you hear a loud "hitting' sound when you pop your clutch hard then check your diff mount, other then that, i say shocks
Old 04-28-05, 03:46 PM
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what about my clunk, could that be shock related also?
Old 04-28-05, 04:58 PM
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I have been chasing this problem for YEARS... My car has a RIDICULOUS amount of squat, and random thumps coming from the rear right.

Things relpaced:

Shocks/Struts/Diff mounts (all of them)

I am wondering if its sway bar related?
Old 04-28-05, 05:04 PM
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Originally Posted by J-Rat
I have been chasing this problem for YEARS... My car has a RIDICULOUS amount of squat, and random thumps coming from the rear right.

Things relpaced:

Shocks/Struts/Diff mounts (all of them)

I am wondering if its sway bar related?
You could just unbolt one end link to check
Old 04-28-05, 06:56 PM
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Justin, gimme a ride around sometime, i'm curious about this thunk. As far as the lift, after all it's a 15+yr old suspension.
Old 04-28-05, 08:14 PM
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Yea i figured taht the squat was just cause its old, but it seemed pretty pronounced when I let off
Old 04-28-05, 08:21 PM
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Try pushing on the front then the rear of the car to see if you can get the car to bounce/move up and down. My S5TII suspension is so stiff, if you push on the front bumper, the car will not bounce. Same as the rear. You can put your whole weight on a corner and it will barely move.
Old 04-28-05, 08:42 PM
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mine does that same thing and it's annoying
Old 04-28-05, 09:04 PM
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Originally Posted by 88 GTU
mine does that same thing and it's annoying
does what?
Old 04-28-05, 09:21 PM
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Originally Posted by Turbonut
Try pushing on the front then the rear of the car to see if you can get the car to bounce/move up and down. My S5TII suspension is so stiff, if you push on the front bumper, the car will not bounce. Same as the rear. You can put your whole weight on a corner and it will barely move.
Yea my coupe was like that, unlike my vert. PRetty new tokico shocks all around and when riding into boost as soon as it is about to hit the sweet spot you can see the front lift, but it doesntt bounce while switching gears it just comes up. This happens in almost every rwd car, it normal and more obvious in boosted ones. Also high torque cars...
Old 04-28-05, 09:24 PM
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squats way down in the rear when i take off
Old 04-29-05, 02:07 AM
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my car doesn't really "squat" i'm running tokico HP's and springs, cars pretty stiff and in good condition, i guess its a random thing
Old 04-29-05, 03:09 AM
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Originally Posted by J-Rat
I have been chasing this problem for YEARS... My car has a RIDICULOUS amount of squat, and random thumps coming from the rear right.

Things relpaced:

Shocks/Struts/Diff mounts (all of them)

I am wondering if its sway bar related?
um, springs?
Old 04-29-05, 04:38 PM
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springs were changed too...
Old 04-29-05, 06:03 PM
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The clunk could just be old rubber. Check your suspension bushings. I was getting noises all around. I changed all of the front suspension bushings, and some of the rear (havn't had time to finish). Now there's no noise in the front, and occational in the rear. I also upgraded to Tokico blues and Tanabe GF210 springs. That eliminated the squat, but there's one tight uphill hairpin near my house that I always spin one wheel on now. Guess it's time for an LSD.
Old 04-29-05, 11:40 PM
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Originally Posted by staticguitar313
my car doesn't really "squat" i'm running tokico HP's and springs, cars pretty stiff and in good condition, i guess its a random thing
If you have power, regardles what suspension, the car with squat down. Its not a evident on an n/a.
Old 04-30-05, 01:09 AM
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Hmm i guess i'll notice it when i go forced induction
Old 04-30-05, 02:37 AM
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I have a similar problem. when I park and shut the car off and then let off the break to get out the back end seems to spring up I have no clue what it is and I just hope its old suspinsion. I also live on a small hill.
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