The ride frequency of Ohlins DFV for 981 should be similar to that of my current GSF with Ohlins. However, I found the damping forces of the Ohlins dampers on my current GSF were higher except the compression on rear. (This situation is also similar to the Ohlins dampers for M4)
In addition, from the dyno graphs, you can see the damping forces from 15 to 32 click are identical. So, my current setting on rear is 13 click which is almost THE SOFTEST!!!
981 Ohlins Dyno(Front)
981 Ohlins Dyno (Rear)
GSF Ohlins Dyno
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981: 7.14K(F) 8.16K(R)
M4: 9.18K(F) 19.38K(R)
GSF: 16K(F) 12K(R)
Ohlins DFV Compression damping rates at 5 in/s, 6 click...
981: 130(F) 165(R)
M4: 140(F) 195(R)
GSF: 225(F) 100(R) <<< This is a little low at rear (maybe it's because of the modified true coilover setup)
Ohlins DFV Rebound damping rates at 5 in/s, 6 click...
981: 180(F) 330(R)
M4: 320(F) 360(R) <<< M4's rear damping forces are not as high as its rear spring rates because the rear dampers are more closed to wheel knuckle than the springs.
GSF: 370(F) 400(R)
(In my opinion, the damping rates should go with spring rates. So, these looks normal except a little low compression damping rate on my current GSF's rear)
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As the rear suspension of my current GSF was changed to true coilover setup, the droop travel was also increased. (That's the main purpose for the new true coilover setup)
As the droop travel is increased, during cornering the the rear suspension of the outside tire could be compressed more but the rear inside tire should still be on the ground!!!
By the way, preload can increase the ride height but could also deduce the droop...
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)Tire off the ground during cornering
By the way, I think this SE-R should have a very stiff rear sway bar, not droop issue...
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Ohlins provides only ONE Ohlins DFV for both Model 3 and Model Y at the same time. (So, both suspensions are completely identical!!!)
Even the spring rates are also identical!!! However, Model Y is a bit heavier. So the ride frequency of Model Y is lower than that of Model 3... (Again, SUVs have lower ride frequencies than sedans)
I don't think OEM springs for Model 3 and Model Y could be the same. However, Ohlins DFV is adjustable for the ride height. So...
(the OEM dampers for RCF/GSF are identical but the OEM springs are different even for RCFs with different differentials!!!)(Right height is very critical to wheel alignment!!!
)PS: Although sedans are more comfortable, it does NOT mean sedans have softer suspensions!!!
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For example, RCF/GSF's OEM dampers are completely identical. Then, "same dampers" means "same spring rates". (damper forces should go with spring rates) So, the spring rates of the OEM springs for RCF/GSF should be very similar. However, the weight of RCF/GSF is different. So, Lexus has to provide many different springs for many different RCFs and GSFs. (to maintain the correct ride height)
However, Ohlins DFV is adjustable for the ride height. So, ONE Ohlins suspension is really enough for all the RCFs and GSFs!!!
In addition, cars could adopt many different spring rates, based on the performance and comfort levels. If the spring rates are similar, the dampers don't need to be re-valved!!!
So, these aftermarket suspensions are quite flexible if they fit in the cars...
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One was Outlander PHEV. (As usual, SUV is slightly softer)
The other was Forester. (This SUV is not softer but Ohlins is softer)
Maybe putting Ohlins on SUVs is a very good solution... Not too stiff or not too soft. Just as stiff as stock M or F cars!!!
(My wife still LOVES the OEM suspension from my GSF!!!)(However, I don't think SUVs with Ohlins suspensions could be as refined or comfortable as stock M or F cars!!! That's why those M or F cars are a bit more expensive...)
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Are Japanese cars softer???
Obviously, the answer is... DEFINITELY NOT!!! (Where was this misconception from???)Japanese cars could be more comfortable but definitely NOT softer!!!
(Especially for Japanese premium cars and Subarus. But, I don't think Subarus are as comfortable as premium cars which include Japanese, German, or other luxury cars)
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