Ohlins updated it's R&T coil-over for our car

[jamal]

Originally Posted by nikitopo

Besides, he mentioned that when you are in a turn, the dampers are not doing much. This is enough for me and not worth it to continue the discussion.

You should really try reading it again then.

Picture you are going around a skid pad- very smooth surface, constant speed, constant steering angle. In this situation how much are the dampers affecting the balance of the car compared to the spring and swaybars?

[strat61caster]

Originally Posted by jamal

You should really try reading it again then.

Picture you are going around a skid pad- very smooth surface, constant speed, constant steering angle. In this situation how much are the dampers affecting the balance of the car compared to the spring and swaybars?

What's the gas pressure?

[fatoni]

Originally Posted by nikitopo

Let some others talk that have changed their suspension. I believe your brz is still stock? Besides, he mentioned that when you are in a turn, the dampers are not doing much. This is enough for me and not worth it to continue the discussion.

what does my car being stock have to do with this?

[ajc209]

Originally Posted by strat61caster

What's the gas pressure?

On my MI20 it was about 50lb iirc

[Andyxin]

Originally Posted by ajc209

On my MI20 it was about 50lb iirc

How do you like your mi20? I really like the DFV technology and the idea of “road and track” but afraid that the spring will be too soft for my Hankook RS4 tires on track. Have you thought about swapping springs? Thank you.

[ajc209]

Originally Posted by Andyxin

How do you like your mi20? I really like the DFV technology and the idea of “road and track” but afraid that the spring will be too soft for my Hankook RS4 tires on track. Have you thought about swapping springs? Thank you.

MI20 is the early kit witj 60N front and rear. I've got AD08Rs currently and its a good combination.

The MP20 was the same dampers and calving so you can swap the springs to 60N happily if you wanted.

Out of all my mods:

Cosworth supercharged
Custom quiet 2.75" stainless exhaust
Ap racing brakes
720form wheels
£2k worth of audio
Ohlins


.. the Ohlins are my favourite modification. On our uneven British B roads they excel at keeping the car stable, especiallly on bumpy corners.


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[jamal]

Originally Posted by ajc209

On my MI20 it was about 50lb iirc

A 50 psi charge would result in a force on a 14mm piston rod of 12lbs. The load on the outside front in a hard corner might be something like 1200lbs.

And that's not even my point- I'm trying to create an example that reduces the number of variables. When you're going around a skid pad, the shock piston isn't moving very far, and isn't moving very fast, and therefore cannot generate very much force. Getting the balance right with the springs in the most simple situation seems like a good starting point to me. You'll notice one of our very active vendors who have developed multiple sets of coilovers and springs for these cars doesn't put softer rear springs on them.


Well, anyway, if I have time later I'll say some good things about these ohlins and provide some actual reasons why they might spring rates they do.

[idkwhatimdoing]

Originally Posted by Andyxin

How do you like your mi20? I really like the DFV technology and the idea of “road and track” but afraid that the spring will be too soft for my Hankook RS4 tires on track. Have you thought about swapping springs? Thank you.

Since when did 6k/6k become too soft?



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[Racecomp Engineering]

We really enjoyed the old Ohlins with 6k/6k (and then changed springs to 7k/7k) on our shop car. I just wouldn't personally run the soft 4k/3k spring rates on my car.

- Andrew

[idkwhatimdoing]

Originally Posted by jamal

A 50 psi charge would result in a force on a 14mm piston rod of 12lbs. The load on the outside front in a hard corner might be something like 1200lbs.



And that's not even my point. I'm trying to create an example that reduces the number of variables. When you're going around a skid pad, the shock piston isn't moving very far, and isn't moving very fast, and therefore cannot generate very much force.



Getting the balance right with the springs in the most simple situation seems like a good starting point to me. You'll notice one of our very active vendors who have developed multiple sets of coilovers and springs for these cars doesn't put softer rear springs on them.





Well, anyway, if I have time later I'll say some good things about these ohlins and provide some actual reasons why they might spring rates they do.

The Ohlins DFV has a specific function.
It ensures the wheel contacts the ground at all times by providing stiffer and more reactive rebound. That’s why Ohlins used soft springs. The DFV is not found on any other shock, thusly other companies must use stiffer springs in an effort to increase rebound speed.
But that’s just my theory...


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[ajc209]

Originally Posted by jamal

A 50 psi charge would result in a force on a 14mm piston rod of 12lbs. The load on the outside front in a hard corner might be something like 1200lbs.

And that's not even my point- I'm trying to create an example that reduces the number of variables. When you're going around a skid pad, the shock piston isn't moving very far, and isn't moving very fast, and therefore cannot generate very much force. Getting the balance right with the springs in the most simple situation seems like a good starting point to me. You'll notice one of our very active vendors who have developed multiple sets of coilovers and springs for these cars doesn't put softer rear springs on them.


Well, anyway, if I have time later I'll say some good things about these ohlins and provide some actual reasons why they might spring rates they do.

No it took about 50lb of force to slowly compress the piston.

Regardless wasnt trying to enter a debate.

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[ajc209]

From what I can tell the dfv acts to soften the transition between the bleed and blowoff valves. So the knee is not pointy like you see on many high end coilovers.

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[Andyxin]

Originally Posted by idkwhatimdoing

Since when did 6k/6k become too soft?



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oops I was thinking about mp20 while typing....

[idkwhatimdoing]

Originally Posted by Andyxin

oops I was thinking about mp20 while typing....

Ah! I think ST coils have similar rates to the mp20, haven’t heard of them rubbing. My friend has ST on his E46 running 19x10.5 in the rear with 255’s and has it slammed, no rubbing


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