個人積分：1012分
文章編號：83480969
個人積分：1012分
文章編號：83489789
Regular M4 spring rates:
front = 3K
rear = 10.5K
M4 Competition spring rates:
front = 3.3K
Wow!!! This is really soft... That's why when I drove that rental M4 competition the turn-in was not so good and nose dive was very obvious when braking!!!
rear = 12.14K
However, the good news is... The much stiffer rear springs will help the car turn much easier and quicker but also could lead to dangerous oversteering which is NOT GOOD for average drivers like you and me especially in rainy days!!! (Like I said... Every car has pros and cons)
The spring rates from Ohlins R&T or DFV
front = 9K (Ohlins for GSF: 16K for roads and 18K for tracks)
rear = 19K (Ohlins for GSF: 12K for roads and 16K for tracks)
Of course, those springs from Ohlins are way stiffer like crazy stiff!!!
Even M4 competition suspensions are not much stiffer than M4 stock suspensions... That's why these Ohlins suspensions could totally transfer stock cars to completely different levels!!!
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個人積分：1012分
文章編號：83490354
個人積分：1012分
文章編號：83495773
個人積分：1012分
文章編號：83495801
Summer:
F8/R13
Cold tire pressure: 33psi
Winter
F8/R13
Cold tire pressure: 32psi
I previously tried to decrease the damping force setting by 1 click but the result was not very good. (The car was not very stable on highways at some situations. Before my GSF was so forgiving at those situations...
)So I decided to decrease tire pressure instead of change damping force. Wow... The result was very good and rewarding!!!
However, the bad news is now I drive my GSF faster and faster even on some very rough roads!!!
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個人積分：1012分
文章編號：83495819
However, 18 inch wheels are TOO SMALL as my GSF is equipped with big Brembo brakes... So, I just can reduce the tire pressure...
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個人積分：1012分
文章編號：83495833
個人積分：1012分
文章編號：83496587
個人積分：1012分
文章編號：83497009
個人積分：1012分
文章編號：83498745
However, we still need additional and enough damping force to control those very stiff springs and those additional damping force could reduce ride comfort a lot!!!
In addition, damping force could also be subjective to the outside temperature...
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