Right, when you heat the springs with a torch, you not only create HAZ heat affected Zones which will either be weaker and stonger along the length of the spring. When heating with a gas composed of carbon, YOU will be introducing Carbon into the metal and make it stronger, Stronger does not mean better in this case, it simply means that your spring is now BRITTLE, exactly what you do not want your spring to be. You introduced stresses which would not be there when you make the springs. there is a reason why they cost so much. it not how much it costs to physically make,it everything it took to develope the spring.
With the thousands of cycles that the spring will have to go through, watch out for cracks in the spring and or rust. Both of which WILL happen.

Ride comfort or Ride Quality has to do with the Ride Frequency you are trying to establish for you vehicle. this is highly dependent on the sprung mass at each corner. Higher frequency (stiffer)usually means faster response and less weight transfer.


As you raise the Spring rate, the dampers will become ineffective and cannot reach critical damping.

Ks
= 4
2
fr
2
msmMR
2

Ks = Spring rate (N/m)
msm = Sprung mass (kg)
fr
= Ride frequency (Hz)
MR = Motion ratio (Wheel/Spring travel

When it comes to developing suspension, you can think,
1.) i want my car to be smooth going X speed through X amount of bumps
2.) i want my car to initiate turn (yaw) at X speed
3.) i want my car to Accelerate/Brake at this rate

So you can Tune for Comfort, Cornering, or accel. and braking. From the 3 categories you want to distribute whats more important to you. YOU will not have a vehicle optimized for turning and comfort. its a balancing act.
So you cannot say that these springs "yours" ride better or worse than any other spring manufacturer out there. Everyone has their own definition of better.

Forgot to talk about swaybars or ARB's and springs for pitch. thats another spring thats added to the springs at each corner.
but basically for a perfect ride you need 10 different springs and dampers

 

How r ur struts now??

 

I missed this post first time around but I like this guy's attitude a lot. He's taking no offense and he has great conviction!!

Because what he did is only slightly unsafe (it's a spring on a car with an incredibly simple suspension) and he's only creating pain for himself if it goes wrong, I can't find it within myself to argue.

 

It's his car so he can do as he pleases but lol

I don't see a good reason to cut stock springs when there are so many options out there.

I've never lowered a car for looks and that includes my new Fit.I just installed Swifts and Progress RSB and the combo is killer.

No way a cut stock spring will hold a candle to the Swifts in any way shape or form.

 

Well all i can say is swifts may be awesome performance wise, but i see no change in appearance really. The drop is toooo mild for the money they want. I rode in two fits with swifts now, felt stock honestly except less body roll, but my buddy has eibachs, and it was wayyyyyyyy better riding, and looked much much better. Id never buy swift. Overpriced no drop springs in my opinion. I think the people here on swifts dick (can name a few) havent been on anothers or something cause it just makes zero sense to me!

 

Just saying, Type One Racing makes a dampening strut....