You are right but it makes the car more predictable with the eliminators. Ask anyone that has had DTSS snap on them.

 

SSSHHH!! these are top secret!!

 

under $500...

polybushings $100
front and rear sway bars $250
rear strut bar $25 - $200 (depending on which brand)
front lower arm bar $70(that thing really works)

^^^that is under $500 and fairly easy to install.
that will make a HUGE improvement over what you have now. you'll be very happy. you'll even have money left over for an oil change

 

sorry didn't know. thought they liked to make money buy selling more.
opps under my borthers SN again.

 

im just joking wtih you, but those are most likely the ones ill get later in the spring. And they are pretty new and unknown for now it seems.

 

to answer a few..


On two identical cars, put progressives on one and linears on the other. Put someone who
can drive progressives good in the progressive car and vice versa. Progressive guy wins on the corners.

DTSS eliminator bushings make the car hook WORSE by eliminating toe in during hard cornering, creating toe out, and causing the tire to NOT hook as well during hard cornering.

I agree with drago and Valkyrie about the brakes

And to explain (from like 20 posts ago) about why stiffer isn't better, when you corner, you create a certain amount of potential energy. That energy has to go somewhere, eh? Normally, it goes into body roll, chassis flex, etc, but when you eliminate all that, the energy still has to go out somewhere. Swinging the back end of the car around is a fantastic way to get rid of it. Of course, not stiff enough causes weight to be shifted to the outside of the car TOO MUCH and the same thing happens. So why do people get sway bars? Because it makes the car feel better in turns. Eliminating chassis flex gives inherently more control because when you "snap" out of the turn, or even just lessening the degree of the turn, typically the body flexes back towards straight, causing the oscillation you experience WITHOUT a sway bar.

 

Then why have I never seen a race car with progressive springs?

 

Chassis design is actually a fairly new territory for ALL race teams. They have finally realized that TIRES/SHOCKS make you fast around a corner, not your engine. You'd be amazed at how many people out there make 6 figures, and don't know half of what some people know about chassis design.
To address Linear vs. Progressive, it's all the DRIVER! What does your driver prefer? Most likely it's YOU. What do you prefer? You have no idea, because you dont' have a race sponsor to give you a whole day at the track to test out little differences in the product.
If you ever had an algebra class, you should now the difference between a Linear graph, and a parabolic graph. That is the only difference.
Linear = More compression, more resistance, in a linear fashion.
Progressive = More compression, a giant leap in resistance. If you are a FINE driver, you could understand how to make the most out of a progressive setup, but most likely you're not.
Bottom line, buy the setup which allows you funds leftover to still get you more track time than you ever thought you would need.

 

Erm,.. right im sure race teams have no idea about that kinda stuff. I'll leave this one alone,...


Which is exactly why they suck. Because of that progressive rate the spring is either way to soft in the begining, leading too body roll and slow tranistions, or way to hard up top, leading to instability at any small bump, and not giving the suspension enough compression to work.

Also, did you ever stop to think about how your shocks like thoose progresive springs? The car is allways going to be either over or underdampened unless your shocks were specifically valved for the specific progressive springs.


Progressve rate springs are targeted/developed for two groups:

1. People who want a nice squishy ride around town, but that will firm up enough when they get into it to not totally suck like the squishy cadalliac suspension normally would. Thus they readily accept the increased bodyroll and slowness for the increase in ride quality.

2. People who buy into marketing and will buy anything thats "new" because it has to be better then what was "old".


Progressive rate springs are a compromise.

 

1.)
I said, "fairly new territory for ALL race teams."
You said, "Erm,.. right im sure race teams have no idea about that kinda stuff."
Your sarcasm is dripping off my screen, yet you totally ignored what I said, and wrote what you wanted to hear.
The fact of the matter is Chassis design and mainly tires, is the technology that most race car teams are concentrating on, because that's where you win. And none of the teams have all the answers. It is fairly new territory for all race teams.

2.)
As for your opinion on progressive shocks, I could care less what you like, besides, I'd listen to what Porsche likes, over what you like. Unless I wanted to lose.
This is the body and blood of my research, shed for you:

 

I can agree with you, but only in theory. How old are these cars? 15+ years right? What happens to rubber as it ages these 15+ YEARS. Rotten delapidated rubber is going to allow uneven movement in this system. This it turn will cause unpredictable cornering with the potential for snap oversteer. You cant get the replacement rubber for the DTSS. You have to buy the whole setup back there. Besides, If this system works so well, Why don't they use it anymore? Or somthing similar?


Seems like everybody is a desktop engineer on this forum!