Ride Quality and lowering - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 23 Old 09-26-2015, 01:31 PM Thread Starter
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Ride Quality and lowering

I've read countless posts on here on shocks, springs, struts etc etc. I drive my car primarily on the streets. No track duty, no auto cross, etc.

Right now I've got all original stock suspension with 80K miles and stock pony wheels. One thing I noticed on harder bumps this thing really hits hard. Even on the less noticeable bumps, the dash will shake/bang. Is this normal or can it be fixed or yet, worsened with aftermarket lowering springs?

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post #2 of 23 Old 09-27-2015, 12:50 AM
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Any stock location spring is a waste of time. Coil overs or go home.

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post #3 of 23 Old 09-27-2015, 07:23 AM
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I agree with ^

I've been saying this for years don't waste your time or money on conventional springs. Coilovers are your best friend, ride height adjustability for that perfect stance, you can always go softer or harder springs depending on what level of comfort you want. And it will be a leap into the present regarding suspension design plus you will drop a few pounds.
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post #4 of 23 Old 09-27-2015, 11:48 AM
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Originally Posted by aurdraco View Post
Any stock location spring is a waste of time. Coil overs or go home.
There you have it in a nutshell.

Jay
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post #5 of 23 Old 09-27-2015, 05:01 PM
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Quote:
Originally Posted by Striker01 View Post

Right now I've got all original stock suspension with 80K miles and stock pony wheels. One thing I noticed on harder bumps this thing really hits hard. Even on the less noticeable bumps, the dash will shake/bang. Is this normal or can it be fixed or yet, worsened with aftermarket lowering springs?
I am in the same boat as you. My GT has the same miles on it and all stock. Does the same thing. Your struts and shocks are shot. You replace them and you'll be golden.

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post #6 of 23 Old 09-28-2015, 07:56 AM
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Quote:
Originally Posted by Striker01 View Post
I've read countless posts on here on shocks, springs, struts etc etc. I drive my car primarily on the streets. No track duty, no auto cross, etc.

Right now I've got all original stock suspension with 80K miles and stock pony wheels. One thing I noticed on harder bumps this thing really hits hard. Even on the less noticeable bumps, the dash will shake/bang. Is this normal or can it be fixed or yet, worsened with aftermarket lowering springs?
Get some Bilstein HDs and call it a day. Better handling and much improved ride.

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post #7 of 23 Old 09-28-2015, 09:45 AM Thread Starter
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I think I'm going to. This ride quality absolutely sucks- installing connectors only amplified the harshness with equates to my interior slowly falling apart every bump. I get these cars don't ride like caddys but DAMN.

I don't care for ride height adjustments to be honest but I do want to hear about pros and cons. There was a member on here that did mention his coil overs making noise over bumpers as there is no more rubber bushing like the OEM setup.
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post #8 of 23 Old 09-28-2015, 09:57 AM
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Poorly designed coil overs will make noise, but my Koni Coil over setup from Maximum Motorsports has zero noise to it and the ride is lightyears better than the lowering springs I had before in the stock locations.

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post #9 of 23 Old 09-28-2015, 10:09 AM
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Quote:
Originally Posted by Striker01 View Post
I think I'm going to. This ride quality absolutely sucks- installing connectors only amplified the harshness with equates to my interior slowly falling apart every bump. I get these cars don't ride like caddys but DAMN.

I don't care for ride height adjustments to be honest but I do want to hear about pros and cons. There was a member on here that did mention his coil overs making noise over bumpers as there is no more rubber bushing like the OEM setup.
For what you are trying to do I wouldn't start getting into expensive adjustable suspension parts. I mean what for? For an excellent ride and better handling you can't beat the Bils. install them and enjoy the ride.

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post #10 of 23 Old 09-28-2015, 11:23 AM Thread Starter
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When you say light years better, in what respect? If it's primarily in respect to handling/body roll and the trade off to that is race car like ride quality; I don't know how interested I would be. Some have told me coilovers ride smoother than OEM location Springs.

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post #11 of 23 Old 09-28-2015, 11:45 AM
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They do. But in your case I'd also be considering the state of the balljoints and bushings.
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post #12 of 23 Old 09-28-2015, 01:07 PM
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What year car? How long have you owned it. Has the ride quality diminished suddenly, or slowly over a long period of time? Do you really want to lower the car, do you want improved performance/handling, or just better ride quality? Different directions depending on what your ultimate goals are. Are mods restricted by budget? Do you do your own mods?

When you post in this section of the forum, most of the folks here are into improved handling, and performance, and many/most of these individual's cars are modified for track use.

Jay
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post #13 of 23 Old 09-28-2015, 01:15 PM Thread Starter
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Probably should have placed this elsewhere than.

The car is a bone stock 1990 coupe that wont be seeing the track. The car rode fine, I did notice the dash taking more of a beating after I installed the full length frame connectors. Besides that, it was good prior.

I want to lower the car- I don't care how many g's it pulls in the corners or anything of the sort, but I want to do it once and do it right. I already have my eyes set on Bilsteins and H&R springs- just not sure to go C/O or not.
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post #14 of 23 Old 09-28-2015, 03:29 PM
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Quote:
Originally Posted by Striker01 View Post
Probably should have placed this elsewhere than.

The car is a bone stock 1990 coupe that wont be seeing the track. The car rode fine, I did notice the dash taking more of a beating after I installed the full length frame connectors. Besides that, it was good prior.

I want to lower the car- I don't care how many g's it pulls in the corners or anything of the sort, but I want to do it once and do it right. I already have my eyes set on Bilsteins and H&R springs- just not sure to go C/O or not.
Light years better with respect to not only the handling, but also the comfort. In order to have the ride height and look I wanted (performance too) with lowering springs I had to use VERY stiff springs which made the ride very harsh. In your case you notice poor ride with it on the stock springs I'm assuming so putting higher rate springs in the stock location will only make the problem worse, even with bilstiens. When you go with coil overs you can use a spring that has half or less the spring rate of the stock location units and thus the ride will be even better while having superior handling qualities.

In your case, I would go with some Bilstien units at all 4 corners and coil overs up front as well as good C/C plates and whatever spring you want in the rear (go coilover later if you want in the rear as it's easy to change). My car is 99% street driven but I wanted to be able to take it out to an AutoX event or track day in the future. You said yourself you want to do it right the first time... coil overs in the front from MM is your best bet and you can do the rear later if you so choose.

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post #15 of 23 Old 09-28-2015, 10:41 PM
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Coil overs improve the ride quality so much you will #### yourself. You can also add front wheel rate and the ride is still tons better. I used to have 1,000 lb./in front conventional springs. Car rode like dog ####. I then went to 300 lb. coil overs. WOW. I then went to 425s. A little less wow. Backed down to 375, closer to wow again.
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post #16 of 23 Old 09-29-2015, 02:50 PM Thread Starter
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I think I need to find a local mustang that has a C/O kit so I can go for a ride in it. I'm very curious to see what the hype is all about.
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post #17 of 23 Old 09-29-2015, 03:23 PM
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They're not all the same. If you find somebody with road-race spring rate, you'll think it rides like buckboard. The thing is, for any given wheel rate (the spring rate as seen at the wheel), coilovers will ride way smoother than conventionals.
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post #18 of 23 Old 09-29-2015, 05:08 PM
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If you are thinking about coil overs,?just get them. You are going to be wishing you did 6 months from now if you didn't. I am running maximum motorsports coil overs with 250lb springs in front and h&r race springs in the rear before the torque arm went in. When I was ordering them the tech asked me if I wanted to give up some ride quality for better handling, I said not really since I live in Los Angeles with crappy cement slab freeways. The wheel rate is higher than stock but rides a lot better than the stock springs. The front suspension articulates so much better too, less creaks from the body while going into driveways or parking lots. There is a little bit more road noise if you listen for it but what you gain in ride quality and handling is worth it. After a couple days it won't be noticeable.


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post #19 of 23 Old 10-01-2015, 11:20 AM
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I think I need to find a local mustang that has a C/O kit so I can go for a ride in it. I'm very curious to see what the hype is all about.
You might want to share your location as well, I am "local" to north america but possibly not to you.

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post #20 of 23 Old 10-01-2015, 11:55 AM
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Coil overs improve the ride quality so much you will #### yourself. You can also add front wheel rate and the ride is still tons better. I used to have 1,000 lb./in front conventional springs. Car rode like dog ####. I then went to 300 lb. coil overs. WOW. I then went to 425s. A little less wow. Backed down to 375, closer to wow again.
Just curious what your car weighs. I have 375s in the front of my heavy (3400 lb.) '95 and 250s in the rear. Sweet ride on a good road, a bit on the harsh side on a bad one. I see where your "little less wow" comment comes from. I would imagine OP would want something around your original 300 lb./in. spring rate if he were to go that route.

Jay
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post #21 of 23 Old 10-01-2015, 10:35 PM
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I drove onto the scales backwards.

Still 200 pounds overweight for this motor. A bit more overweight for the next one
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post #22 of 23 Old 10-09-2015, 10:52 AM
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Coilovers is the way to go. Coilovers move the spring closer to the end of the control arm, which acts like a lever. By moving closer to the end of the C-arm you can use softer springs for the same amount of control. On the stock spring it jammed way inside the lever so they have to be super stiff for control.
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post #23 of 23 Old 10-09-2015, 09:55 PM
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Don't forget that the stock rubber bushings contribute to ride quality (or lack thereof) as the suspension articulates. This is due to the design which adds wheel rate as the bushings approach bind. When they bind, the suspension locks - and ride quality and handling disappears. Adding front C/Os help a lot, but unless the bushings are also changed too, there will still be added wheel rate and ultimately bind.
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