mitchntx

iTrader: (14)

Now ... there's the Jason we all know and love ...

JasonWW

iTrader: (2)

What's up with that?

mitchntx

iTrader: (14)

JasonWW

iTrader: (2)

Too many mixed messges.
Lets keep this on topic.

Is anyone making a rubber/rod end rear LCA yet?
I don't like the idea of making them from several different pieces from different sources. I'm sure there is a market for them.

mitchntx

iTrader: (14)

Along those same lines, is anyone making a solid rubber tire in a 275 17?

I don't like mixing air with the rubber in order to keep it at the desired ride height.

Mojave

iTrader: (4)

Think of all the time you will save not having to check and adjust your tire pressures!

JasonWW

iTrader: (2)

Are you two TRYING to ruin this thread?

I'll post back if anyone has any real questions.

mitchntx

iTrader: (14)

And the increased mechanical advantage as the tires wear smaller ...

mitchntx

iTrader: (14)

Not really trying ... it just seems to happen naturally.

Lighten up, dude ...

java_osborn

Ok guys,

What about the whole "tuning the springs and the shocks" for the best ride? I here a lot about spring rates and adjustable shocks, but if I went with the Stran STR-SP141 (spring's rate is 550/150 (or maybe what JasonWW suggests 550/160)) there should be a shock dampening that matches that rate. Right?


Thanks for the info,

Jeff

P.S.. JasonWW where did you get the 550/160 and how much does it lower your ride?

JasonWW

iTrader: (2)

Those spring rates work real well with the Koni SA shocks. Low speed rebound is adjustable and that mainly effects how quickly the body moves when the weight shifts. The firmer you adjust it the slower the shocks extend and it keeps the car from rolling, diving and squating as quickly, but at the same time the ride gats stiffer so you have to find your own balance between handing and ride comfort.

The Bilsteins are not valved for these heavier springs. They are more suited to softer rates, but are still way better than the DeCarbons.

My front springs are the Ground Control coil over conversion and are available in 50lb increments. My rear springs are stockers that I modify and can change the rate and the ride height with. I've noticed that it's good to be able to do finer adjustments in the rear rate than the standard 25lb increments. Things vary from car to car including weight (I have a stereo system and a 12" sub in the back) as well as the tire you use. Nitto DR's have a soft sidewall so I ran about 170lb for good handling and ride. Then when I switched to a firmer GSD3 the ride got a bit too harsh so I needed to drop down to 160lb to soften it again. The more weight in the back of your car, the stiffer the rear springs need to be. If the back is empty, 150lb may be good. If you are not lowered a lot and want a real cushy ride a 125-135lb may be what you want so it all depends.

mitchntx

iTrader: (14)

Wheel spacers.

Moving the wheel closer to or further away from the spring perch yields a mechanical advantage on the spring ... a lever effect.

A simple, easy and cheap way to fine tune the spring rate.

JasonWW

iTrader: (2)

Maybe you shouldn't have had those last few beers.

java_osborn

What are the 'stock' spiring rates? Does anybody know off the top of their head?

JimMueller

iTrader: (9)

I believe one variant of the stock springs was 192F/114R, but I don't have the info in front of me at the moment.

Mitch - PM me some info on how to get Penske's at less than the cost of Koni's

mitchntx

iTrader: (14)

From a guy wanting to build an exoskeleton roll cage on a 4th gen Trans AM.

subtlez28

iTrader: (15)

Close...it is actually 292 front 114 rear for 98-02 LS1 cars.
Here is a handy link to keep around. Several spring rates and other handy info: http://www.angelfire.com/my/fastcar/suspension.html


And JasonWW....don't get discouraged...I like it when you post...I'm in love w the woman on you sig pic

java_osborn

[QUOTE=mitchntx].....

Tires ... 11" rims will fit on all for corners. Having 315 rubber on the ground is a great feeling. Got to be able to dial in a lot of front camber, though.
.....
[QUOTE]


Mitch,

I assume you are talking about 17x11 rims, right?

What size tire are you running (P315/??ZR17)?

I did not think you could run anything that big and lower these cars any without rubbing.

Thanks for the info,

Jeff

subtlez28

iTrader: (15)

Check out this link (and this site in general):
http://www.frrax.com/rrforum/index.php?showtopic=2922
Great tech on here!

Killer_Bluebird

iTrader: (23)

I think Sam's spings lower the car about 1.15"-1.20" or so. Koni Shocks have quite a good range of springrate that they can effectively dampen. I think I heard the limit is about 650-700# but don't quote me on it. Anyway it is able to support a spring stiffer than you want to run on a street car unless you want new kidneys.

There was a nice article on Grassroot Motorsports on dialing your shocks I think it was 4 or so issues back. I'll go and dig it out and maybe scan the pages. Plus it had some basic guidelines that will help you identify what needs to be changed on the suspension/shock adjustments.