2017 GSF

993分

樓主

個人積分：993分

文章編號：86594643

That's why this guy loved Ohlins so much as his new Porsche was even softer than a stock GSF!!!

(I definitely understand his feeling as we're in the same group!!! 笑到噴淚

)

PS: The adjustment knobs for my GSF are in the engine bay and the rear trunk. So, it's much easier for GSF than that Porsche due to that Porsche's mid engine layout... rock

--------------

981 (Weight: 2888 lbs)
Front 2.5K : 2.5 / (2888 * 45%) * 1000 = 1.908
Rear 4K : (4 * 2) / (2888 * 54%) * 1000 = 5.130

981 Ohlins R&T (Weight: 2888 lbs)
Front 7K : 7 / (2888 * 45%) * 1000 = 5.386
Rear 8K : (8 * 2) / (2888 * 54%) * 1000 = 10.260

-----------------------

GSF :4035 lbs
Front 7.5K : (7.5 * 0.80) / (4035 * 53%) * 1000 = 2.806
Rear 12.4K : 12.4 / (4035 * 47%) * 1000 = 6.538

FIGS Ohlins GSF :4035 lbs
Front 16K : (16 * 0.80) / (4035 * 53%) * 1000 = 5.985
Rear 19K : 19 / (4035 * 47%) * 1000 = 10.019

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dlin4229

993分

樓主

dlin4229

個人積分：993分

文章編號：86595153

After having done these interesting researches for several days, now I more understand what my current Ohlins GSF's position in the performance car industry.

The good thing is... I become even more confident on my current GSF... 拇指向上

However, the bad thing is... Now, I drive my GSF even faster than before!!! 拇指向下

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dlin4229

993分

樓主

dlin4229

個人積分：993分

文章編號：86596118

The below is for 6th gen. Mustang...

GT (Weight: 3705 lbs)
Front 2.8K : 2.8 / (3705 * 53%) * 1000 = 1.426
Rear 11.7K : 11.7 * 0.8 / (3705 * 47%) * 1000 = 5.375

GT Track Pack (Weight: 3705 lbs)
Front 2.9K : 2.9 / (3705 * 53%) * 1000 = 1.528
Rear 12.7K : 12.7 * 0.8 / (3705 * 47%) * 1000 = 5.834

GT500 (Weight: 4183 lbs)
Front 4.4K : 4.4 / (4183 * 53%) * 1000 = 1.985
Rear 15.5K : 15.5 * 0.8 / (4183 * 47%) * 1000 = 6.307

GT500 Track Pack (Weight: 4081 lbs)
Front 4.7K : 4.7 / (4081 * 53%) * 1000 = 2.173
Rear 16.5K : 16.5 * 0.8 / (4081 * 47%) * 1000 = 6.882

Ohlins GT (Weight: 3705 lbs)
Front 9K : 9 / (3705 * 53%) * 1000 = 4.583
Rear 14K : 14 * 0.8 / (3705 * 47%) * 1000 = 6.432

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dlin4229

993分

樓主

dlin4229

個人積分：993分

文章編號：86596514

The below is for 6th gen. Camaro...

SS (Weight: 3697 lbs)
Front 2.4K : 2.4 / (3697 * 53%) * 1000 = 1.225
Rear 10.1K : 10.1 / (3697 * 47%) * 1000 = 5.813

SS 1LE (Weight: 3750 lbs)
Front 3.1K : 3.1 / (3750 * 53%) * 1000 = 1.560
Rear 9.4K : 9.4 / (3750 * 47%) * 1000 = 5.333

ZL1 1LE (Weight: 3883 lbs)
Front 7.9K : 7.9 / (3883 * 53%) * 1000 = 3.839
Rear 19.3K : 19.3 / (3883 * 47%) * 1000 = 10.575

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dlin4229

993分

樓主

dlin4229

個人積分：993分

文章編號：86599475

Sorry...

Besides the calculated numbers on the rear have to be divided by 2, the calculated numbers on the front also need to be changed if the front suspensions are double A... 笑到噴淚

The original adjustment was 0.8... But, now I think it should be 0.725... (Actually the adjustment should be 0.7-0.75 which depend on the actual front control arm. But I choose the average, 0.725)

Why does the adjustment need to be changed??? Again, just like Civic Type R... the front lower control arms are usually a bit shorter than rear lower control arms as engines are much BIGGER than differentials!!! 笑到噴淚

(In addition, the adjustment don't depend on the actual length but on the PROPORTION in length)

How do I know the way to calculate the spring rate on different suspension... Actually I just follow the way in the below link... (You can skip the most of the page... Just focus on the middle portion about the spring rates on different locations)

Calculate Different Spring Rate

PS: I'm not a car professional... So, don't be too serious on my data!!! 謝謝指教

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dlin4229

993分

樓主

dlin4229

個人積分：993分

文章編號：86599753

The below is some old BMWs...

I had test drove 335i and M3 before. So, I'm a bit curious how stiff they were... 笑到噴淚

Stock 135i: 3375 lbs
Front 2.1K : 2.1 / (3375 * 52%) * 1000 = 1.197
Rear 6.1K : 6.1 / (3375 * 48%) * 1000 = 3.765

Stock 335i e92: 3593 lbs
Front 2.54K : 2.54 / (3593 * 52%) * 1000 = 1.360
Rear 8K : 8 / (3593 * 48%) * 1000 = 4.639

Stock M3 e92: 3704 lbs
Front 2.8K : 2.8 / (3704 * 52%) * 1000 = 1.454
Rear 9.6K : 9.6 / (3704 * 48%) * 1000 = 5.400

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dlin4229

993分

樓主

dlin4229

個人積分：993分

文章編號：86599786

Now, let's see something more interesting...

The below is nature frequency and how much stiffer or softer when compared with GR86...

Once I have this information in hands, I can have better idea on how stiff the car could be in advance... So, I will NOT waste too much time or money on those softer cars in the future... 笑到噴淚

(Besides I added "divided by 2" on rear, I also did some adjustments for front double A suspension, BMW's rear, Infiniti/Nissan's front and rear because of the slightly different designs on their lower control arms)

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dlin4229

993分

樓主

dlin4229

個人積分：993分

文章編號：86599906

I also did some adjustments for Miata and GR Yaris...

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dlin4229

993分

樓主

dlin4229

個人積分：993分

文章編號：86600390

My son's G35S and my daughter's M35X are stiffer than 911 Base???

(Be honest... I don't think they are that good!!! 笑到噴淚

)

However, I cross reference Mine's Ohlins for G37... Its natural frequency is about as same as Ohlins Miata, Ohlins GR Yaris, Ohlins Type R... So, I think my son's G35S and my daughter's M35X could really be stiffer than 911, even just with their stock suspensions!!! 拇指向上

(Again, that's why SAAB was closed eventually...)

(Of course, higher natural frequency doesn't always mean better handling!!! 笑到噴淚

)

Mine's Ohlins G37(V36) (Weight: 3613 lbs) --- N.F = 1.99
Front 11.6K : (11.6 * 0.7) / (3613 * 53%) * 1000 = 4.24
Rear 10.7K : 10.7 / (3613 * 47%) * 0.586 * 1000 = 3.692

Mine's Ohlins G37

Ohlins Q50 (Weight: 3730 lbs) --- N.F. = 2.17
Front 14K : (14 * 0.7) / (3730 * 53%) * 1000 = 4.957
Rear 8K : 8 / (3730 * 47%) * 1000 = 4.563

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dlin4229

993分

樓主

dlin4229

個人積分：993分

文章編號：86600967

Please be noted G35S and M35X are expensive luxury cars, not ordinary sedans...

If Nissan wants people to buy those more expensive cars, Nissan must keep the refined ride for them!!! Even with those higher ride frequencies, my daughter's M35X are still very comfortable and stable most of the time!!! I have to say Nissan engineers really did a very good job and tried their best to save their company!!! (At that time, Nissan had financial problems)

And, because of those additional efforts... A few years later a new GT-R R35 was born!!! 拇指向上

We also admit... Both my wife and I think my daughter's M35X is a little bit bouncy and unstable if the road is very bad!!!(It really needs some decent dampers from Europe) But, don't forget our previous car was 2000 Maxima which was equipped with Koni Yellow dampers!!!

I think that's also why that rental M4 Competition didn't give my wife much surprise!!! 笑到噴淚

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2017 GSF

小惡魔新聞台

小惡魔廣編特輯

2017 GSF

小惡魔新聞台

小惡魔廣編特輯

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