Autocross and Road Racing Technique There is more to life than a straight line

need help,suggestions with suspension.

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Old Dec 25, 2003 | 11:57 PM
  #1  
koochiekilla's Avatar
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Angry need help,suggestions with suspension.

greetings to all. i had a poblem with my suspension early this summer, it kept bottoming out at the passenger rear tire. i had all springs and schocks changed and even added 1'' rubber spacers 2 all the springs. just recently it started 2 bottom out again, same tire.

i currently have 18's. the driver side is untouched.is there anything that im overlooking here?? springs is what gives the car its ried height correct?. really need 2 get this fixed before my tire blows.any and all suggestions, please.
Old Dec 26, 2003 | 12:27 AM
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Are these stock springs? And the wheels, what's the wheel size and offset, and the tire size? When you say "bottoming out" do you mean the wheel is hitting somewhere inside the wheel well, or the axle is hitting the jounce bumper?

My guess is you've got wheels that are too wide, or the offset is screwed up...

Dave
Old Dec 26, 2003 | 12:59 AM
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yes.. they r the stock springs from slp's take off parts. thje tires are 18'' not sure bout the offset. the tires are 245/40/18.. im overloking somthing cuz its just that one tire, its rubbing hard on the inside of the fender, ive got rips and some chunks taken off of the tire. thanx. what should i do??
Old Dec 26, 2003 | 10:02 AM
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Crawl under there and take a look at where the wheels sit, in relation to the wheel well. Is the left side also very close to the inside wheel well, or is there plenty of space? The Panhard rod or other suspension bits could be bent, shifting your axle to the left (like if you hit a curb...). An adjustable Panhard rod can be used to move your axle back over to the right, but it's only going to give you less than an inch - that may help.

But if both wheels are very close to the inside well, they've just got the wrong offset, and aren't right for the car. They're clearly not too wide if you're using 245 width tires on them.

Dave
Old Dec 26, 2003 | 03:03 PM
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im gonna check it out. it just seemed disturbing 2 me that its just one tire. i did notice that on the passenger side that both tires do sit a bit more inside the wheel well than the driver side.

the car came with these rims when i boght it and noticed some sort of spacer on the rotors im assuming cuz of the width of the tires. aslo could it b that i only have those jounce bumper spacers on one side only?? i never checked 2 c if i even had these.. thanx. peace. R.C
Old Dec 27, 2003 | 03:02 PM
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That doesn't sound right! Both tires on the passenger side set in farther?

Ok First easy thing to check

Park the car on a level surface

Take a piece of string that that will hang close to the ground (atleast past the top of the rim) from the top of the fender well. Get a heavy washer or bolt or whatever you want to use for weight and tie it to one end of the string (the part that will be hanging).

Now let the string hang from the any point preferably as close to center of the fender well and measure it from the tire to the string do the same for all 4 tires both front tires should be the same distance from the string to the tire as well as both rear tires should have the same distance or atleast close. The rear is probably off slightly anyway without an adjustable panhard bar.

If you have different readings between each corrisponding tire pull both rear tires (being sure to mark which tire came from which side) and measure the backspacing they should be the same. If you have 245's AND spacers. I say they are the wrong backspacing to begin with.


Let us know the outcome
Z~

Last edited by ZLT195; Dec 27, 2003 at 03:08 PM.
Old Dec 27, 2003 | 10:44 PM
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thanx zl95. i said my statement wrong. the problem is with the rear passenger wheel. its def more in the wheel well than the driver side wheel. im gonna check the height with mesuring tape on a level surface.

as for the jounce spacers.. dont have any!! not on either side.which is still pissing me off cuz like i said b 4 its only ine wheel thats bottomimg out. is there a possibility that the axle is the culprit? or the chasiss? could the axel got bent or shifted 2 one side?? im just thinking bout all the possibilties.

ive been hearing around also that the adj panhard rod and the jounce spacers might do the trick, what do u think?/ thanx a bunch. R.C
Old Dec 27, 2003 | 10:46 PM
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sorry one more thing, what can b donr about that backspacing? can that b fixed and how?? thanx again. R.C
Old Dec 28, 2003 | 03:48 PM
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How thick are the spacers? I know you have SLP take offs but is the car lower than stock in the rear? What shocks did you have put on? Take a measurement. Place something straight from the ground to the fender. Measure from the tire (or wheel) out to the vertical straight piece. Check both sides. You need to know whether the axle is off-center.
Old Dec 28, 2003 | 05:33 PM
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thanx brueck. at the time 1 dont have the jounce spacers and slp is closed till next monday. im going 2 measure the height 2 morrow. the springs from the slp take offs were about a centimeter shorter than the stock springs that came off my car. rubber 1inch spacers were placed on all springs.

what i was going 2 do was take it 2 a local tire and whell shop and have them inspect the wheel. like i said b 4, its only 1 wheel giving me this problem id hate 2 change all my rims and tires but if i have 2 then i will. how can i catually tell if my axel is off centered? just by measuring ?. thanx a mill. ill post what the hell is goin on .. peace. R.C
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