Just curious

 

After you lower it let it settle for a coupe of hundred miles and get an alignment!

 

just lowered mine an hour ago took it for a 20 mile test run.

 

Lowered it today. 83 in Austin today. I will wait until I replace the fronts to get it aligned.

 

I drove mine for a while without getting an alignment, but only because I knew I was going to get some new tires shortly. After the tires were put on I had it done and the alignment guy said it was needed, on mine anyway.

 

Man, this topic gets beaten to death..........

 

At the price of tires getting not getting an alignment is just

 

Yes but not evey one reads every topic.

Here is info from a previous thread a few months ago.

Cars response to lowering

What is happening is the roll center has been lowered so that the moment arm that goes from the roll center to the CG is longer so there is more body roll that you are trying to compensate with bigger springs. You could do what the Porsches do, i.e. compensate for incorrect geometry by having obscenely high spring rates. Some of the Porsches have 1800/2200 lb/in springs so that the geometry does not matter (watch the bouncing baby Porsche). If you do that, your shock damping has to go up as proportionally.
The only cheap thing I can think of is to put in stiffer bump rubbers on your shocks so that when you are at full bump the spring rate is higher and it limits the travel. Shock bump rubbers (actually they are urethane) are available in various stiffness. At least the tires won't hit as often.
Gary Hoffman.


...the overall diameter of the tire.

This may not help much, but a C5 with stock fender openings (regardless of tire size) needs a measurement from the spindle centerline to wheel well opening lip of at least 14" or the front roll center will be too low. By using the spindle centerline to fender lip measurement, you take the tire/wheel size out of the equation. For those with modified fender openings, you will need to come up with your own fudge factor for your fender openings.

The roll center calculator that I use is from Performance Trends, Inc. It is a slick little software package that allows you to see graphically what different ride heights, Dive and Roll do to your roll centers.

As a side note with little regard for roll centers: I usually set up the faster C5s to be between 14 1/4 to 14 1/2" up front and 14 3/4 to 15" in the rear, depending on which track we are running and which springs they are running. Go any lower and you will need shorter shocks and much stiffer springs and anti sway bars to keep things in check.

Mark "Beer" Stein
Email - Mark@motorsportimage.com

http://forums.corvetteforum.com/show...41&forum_id=23

Stock Ride heights ranges:

round to just behind the jacking puck points.
Front - Right and Left 5 3/4"
Rear - Right and Left 6"

Measured at the jacking points on the frame...
Front (Left and Right) 5 1/8"
Rear (Left and Right) 5 3/8"


HTH

 

Dude, just drop it!!! Then get a Z06 alignmemnt

 

Mine is lowered and aligned

 

both

 

I drove mine for a couple hundred miles after having it lowered and took it back for an alignment check. He said it was fine and did not need it.



CRVETTE

CORVETTE OWNER SINCE 1971 AT AGE 18
Celebrating 35 years of Corvette ownership
**I'm definitely in this for the long haul!**

 

[QUOTE=dooscoop32]I drove mine for a couple hundred miles after having it lowered and took it back for an alignment check. He said it was fine and did not need it.

I drove mine for about 150 miles and the front was off a little and so was the rear.

 

You're not saving yourself any money by cheaping out here. $80 or so divided between longer life of 4 tires (and a touch of gas mileage) is nothing.

 

I never aligned mine. Runs just like it did before. It drives perfectly. I don't want any shop messing with it. If it's not broke....

 

$80 for a four wheel alignment? Hmm... A Porsche and Ferrari mech (who weren't trying to sell me anything) told me they are a lot of work as one adjustment messes up others, but perhaps some cars are easier to align than others. I fear a lot of those places just hook it up and look to see if its anywhere in the ballpark and then don't touch it. Reason I say that is that my dad got his car back from an alignment shop after having a new suspension installed on the Cobra, and yet the passenger front had negative camber while the drivers front had positive camber, visible to the naked eye (didn't notice till washing it at home hehe)! Oops! They fixed it, but we fear the toe was set pretty extreme. Ugh.

 

I lowered mine, and within 7 days of driving the car, the insides of the front tires were worn all the way smooth, whereas the outsides were fine, but i've got a problem. NO WHERE in town can get a lowered car on the lift to do an alignment, so i'm kind of in a pickle.....

 

Hi Willfulone -

Both cars lowered to stock limits, both had alignment checked.

best regards -

mqqn

 

That's what I was quoted by a very reputable shop that does many C5s. The owner (2nd gen) does them himself while you watch if you want to.