Trick question, huh? There are two different variations of Steeda Sport Springs on the market. I only know the rates of the ones I was using initially which is 200/175.

I speak from experience in regards to my comments on the Steeda Sports/Koni Yellows. You do not. You speak in conjecture and theory. I have no problems with your product. I actually think it is a pretty brilliant idea what you've done, so kudos to you. Where I have the problem is that you come across as your opinion is the gospel, and it is not.

I ran the Steeda Sport springs on my car with just the factory shocks to begin with. It was absolutely fine for a daily driver. You stated that Koni Yellows were a "must", and they are not. From autocrossing, I realized I needed some better damping to be more competitive. I opted for Koni Yellows to give me rebound damping adjustment. For a daily driver with occasional spirited driving, I feel like the STR.T Konis would be fine. After having quite a few autocrosses in the car under my belt and having taken a few intensive driving classes, I realized I was way under-sprung for the car to be competitive on a national level. Recently I have pulled the Konis/Steedas from the car and switched to KW Variant 3 Coilovers that give me both rebound and compression adjustment as well as greatly more spring rate. The fronts are 400# and the rear is progressive at ~300-325#.

I may not have the pedigree of Sam Strano (although I am a customer of his), but I am the 2011 SCCA SOLO Southeastern Division and 2011 SCCA SOLO Atlanta Region ESP Champion.

 

Your "experience" proved my point of this thread. You race, most guys don't.

The spring kit I am selling is a solution to the street crowd. Not racers.

As for what you say about the "stock" strut/shocks working with steeda "sport springs" just fine. Well, can it? Sure. Does it work well? No! The "stock" struts/shocks are not valved for these higher spring rates and will not work properly to dampen the oscillation of the higher rate springs. In essence, the "stock" pieces won't last very long and is not recommended for the "sport springs".

As for my experience, you claim I do not have, it comes from being in the racing industry for 25 years, working with Global West (suspension company) and my father who was their "national tech" representative for several years.

So never assume someone doesn't know what they are talking about or when something is explained in a different fashion you don't personally like.

Besides, just because you race a car doesn't make you a suspension expert, hence the reason you buy parts and take knowledge from others.

We however, know how and why it works, very well. We also know that a suspension is made up dozens of components, not just one piece. Springs don't solve everything.

That's why if you read my OP you would see that i make it very clear our 55D Spring Kit works because it works in unison with the Brembo Suspension by being the same rate.

I never said that our spring solves everything. It's a solution for most of us who are not racing their everyday car.

Call it gospel if you like, but what I'm saying to the street crowd is truthful.

That being said, I appreciate the kind words.

 

I'm sure the Steeda sport springs work fine with the stock shock/struts. It's just for the average driver, remember? Who cares if it's perfect...

 

Perfectionists?

 

I don't know... a class winner (in a very competitive class) has some credibility. I'd definitely listen to jsnyng's advice on suspension stuff.

 

Hmmm, one of the things I liked about the Brembo car over the base suspension car when I test-drove them was the fact that the Brembo car was a lot more neutral around the on-ramp on the test loop.

It seems to me that by lowering the rear, you're probably leveling the roll axis, too. I.e., you're decreasing the height of the rear roll axis, while probably not affecting the front much.

Assuming that the roll axis is above ground, wouldn't this have the effect of decreasing the rear roll couple? It would seem to me that this would tend to shift the balance more toward understeer, requiring either a stiffer anti-roll bar or higher spring rates in back to get back to the stock balance.

 

I think options are always good and I'm sure some will go this route.

I think you will be playing catch up though because most have already done both springs and shocks/struts and other suspension upgrades with good results.

I have a base GT and I run Eibach pro kit springs and Koni STR.T with Stainless lines and Hawk HPS pads and Motul fluid.I don't have track or skidpad numbers but I will tell you I have no problem running with Brembo cars in the canyons

My ride is also good and not far from stock on all but the worst roads.I'm familiar with Global West and they are a great company and again options are always good.

 

The 55D Spring Kit keeps it's stock "neutral" balance with the lower 1/2" because we compensated by stiffening the spring rate by 5%. Which for all practical purposes is near the "stock spring rate".

 

You should ease up on the "quotation marks" IMO.

 

I know this is an old post-but i used your springs on my car and thought id post a pic . I have had 3 gt's and always lowered the back back for that level look. I really like the springs . In past ive used roush ones and a pair of suspension dynamic shocks to soften ride a little. This time i used your spring and the sd shocks. When you drop the back it gives car thay nice levell stance. At shows i get asked all the time did i lower whole car. My car isnt a brembo car. They are a lil stiff for my tastes even with sd shocks but they are livable. On a non brembo gt though you gotta use a better shock or ride is harsh-or at least i think so, but thats with any lowered spring. They are a decent product and id encourage all to do it if you want a cheaper way to give your car that level rake! 1st pic is before mods .2nd one is current state with 66 springs etc..last pic hek i was just happy they took my pic at the drags lol.
I have soime new coys c5 wheels and tires if i ever get a free day to put em on.

 

OK, well since I haven't seen anyone ask yet, I'll step out and muddy the waters.

Is there a difference between the Track Pack and a standalone Brembo option?

I was reading on the before mentioned website dirty hippo racing that there is a definite diff between the GT & the Track Pack but I've not seen the comparison between the TP and BO

 

Being an old guy I find it interesting how styles change; in the old muscle car era late 60's early 70's, a lot of people were buy lift kits for the rear suspension so their cars rears were jacked up (perhaps a dragster poser look?). Now the style is lower / level stance, which I agree will provide superior handling.

 

To be honest I'm not a fan of the slammed down front and rear look where the fenders sag down over the tires on both ends. I like a little rake to a car, little more height in the rear. So the front end looks pushed down, like its going really fast and the air pressure has it jammed to the ground. Makes the car look like its hauling **** when its just sitting still.

I see a lot of these late model Mustangs with lowering kits where its level front to back and really low. To me it makes the car look fat, like its hulking over the tires and swallowing them under it's own weight.

 

As anouther old guy, I like the look of a lowered car but I don't like the ride of the increased spring rates that are needed with the shorter springs for my daily driver. That is why I went with these 55D springs in the rear. The change is subtle but worth it in my opinion. As far as handling improvements? I changed shocks and rear control arms at the same time I installed these springs so I cant comment but would not expect much from lowering the rear 1/2".

 

im 44 im an old guy too. i dont like that lowered all over look-but i kinda like the level ,,if i had to drop mine all over id leave it stock and keep that 70's skyjacker look going on. Gt sure has came a long way . We are lucky to have real muscle again. Imagine if we would have had this power back in the 80's ..Lol i had a v8 maverick in high school -it was quick, but nothing compared to today . as far as difference in the track pack and
brembo suspoension i think track pack uses the brembo springs.
I know this is nuts but have you guys ever noticed how a base gt sits a lil
lower than a premium. it does . I guess ive looked at way too many cars.

 

I'm considering a Track Pack car and I think these springs sound like a good option for what I would want as well.