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Old 12th July 2016, 04:58 PM   #1 (permalink)
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Step change in handling, comfort settings and Launch Control performance - read on

As R35 GT-R owners, we are extremely fortunate to be able to drive one of the fastest cars on the Planet.

Many of us have raised power levels well beyond Nissan's original design, until now there has been no way to tune the suspension to match the changes in engine performance and tyres.

The R35 GT-R's Damptronic suspension was developed by Bilstein and is fitted to a number of high performance vehicles.

DSC Sport developed a Plug & Play programmable controller for the Damptronic suspension and very successfully applied their technology on track and road to the Porsche range of vehicles.

DSC have now developed a programmable controller for the R35 GT-R.

The DSC programmable controller adjusts the damping level of each individual shockabsorber in virtual real time with step control between the Sport and Comfort setting, resulting in an active suspension setup that provides more grip, greater stability and ride control while increasing comfort for all driving styles and road conditions.

The graphic below shows one of the main programming screens within the accompanying software package.



The box above, highlighted in Blue, shows the suspension settings that will be applied when the braking and cornering forces are 1G.

On the settings panel to the right, you can see that the left front and rear shockabsorber and right rear shockabsorber are set to 100% stiffness, the front right shockabsorber is set to 20% stiffness, allowing you to ride over any kerb with confidence.

The 10 x 10 GForce table allows 100 settings for each shockabsorber in steps of plus and minus 0.1G.

The Suspension Controller comes with starter maps that work very well. Users can create new maps for Track and street to suit their own driving preferances. Maps can be saved and uploaded / downloaded with ease.

More details can be found by visiting the Performance Tuning Systems Website

Other parameters can be managed including comfort levels and also how the suspension reacts when the car is being launched.

The DSC system brings a level of sophistication that will greatly improve the driving experience and will greatly enhance our cars.

Thanks

Hugh
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Nismo R35 fitted with DSC Sport lapping Virginia International Raceway

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Old 13th July 2016, 06:27 PM   #2 (permalink)
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Interesting video to build understanding of the DSC Sport suspension controller showing a video introduction highlighting some of the benefits that improve lap times.

You will see that the algorithms for the DSC Sport suspension control system are a product of race development.

Development of the system is all about maintaining tyre contact with the road.



Thanks

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Nismo R35 fitted with DSC Sport lapping Virginia International Raceway

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Old 26th August 2016, 07:00 PM   #3 (permalink)
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Am planning to go to Knockhill for a track day on Monday the 29th August for anyone wanting to have a run in the car and experience how comfortable the DSC Sport system makes that GTR.

This is how Nissan should have released the car, it is really very comfortable in the softer settings.

I am going to take the VBox Lite system with me and see how the Launch control settings work on the DSC Sport as well, will post videos up afterwards.

PM me if you would like to meet up to experience the step change in improvement.

I will be driving from Knockhill back to Aberdeen in the early evening if you cannot make it to Knockhill through the day.

If you are in the Aberdeen area, I would be happy to meet up to demonstrate the DSC Sport system at any other time.

Thanks

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Old 26th August 2016, 07:55 PM   #4 (permalink)
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wow.. this looks great.
what kind of cost are we talking here
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Old 27th August 2016, 07:55 PM   #5 (permalink)
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Thanks Nick,

Price is £900 + VAT, but happy to put a group buy together for 5 units at £850 + VAT

Will hopefully be able to post a VBox video from Knockhill with notes on the day.
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Old 28th August 2016, 07:41 AM   #6 (permalink)
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I'd be up for one especially at the GB price
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Old 28th August 2016, 07:29 PM   #7 (permalink)
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Thanks Charles Charlie, will se if others want to come in a group buy over the next few days.

Will update again after my trip to Knockhill tomorrow
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Old 28th August 2016, 07:57 PM   #8 (permalink)
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Used one of these in my Porsche for a couple of years now since they first come out they are great you really notice the difference!!!
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Old 30th August 2016, 07:50 PM   #9 (permalink)
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Interesting.. Could I ask how this would/could work with a car with Litchfield Bilstein suspension? essentially similar to the Nissan OEM setup, but different dampers. I'm guessing the current settings for OEM won't work, and custom setup would be recommended?
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Old 30th August 2016, 07:56 PM   #10 (permalink)
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Quote:
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Interesting.. Could I ask how this would/could work with a car with Litchfield Bilstein suspension? essentially similar to the Nissan OEM setup, but different dampers. I'm guessing the current settings for OEM won't work, and custom setup would be recommended?
In theory, it would work the same, but the effective mapping would be different.

I'm interested, but I'd need to see some evidence and a proper demo of it first.
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Old 30th August 2016, 08:21 PM   #11 (permalink)
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In theory, it would work the same, but the effective mapping would be different.

I'm interested, but I'd need to see some evidence and a proper demo of it first.
Yep, my thinking exactly.. I'd also be interested in a demo too, perhaps silverstone?
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Old 31st August 2016, 07:23 AM   #12 (permalink)
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Well I'm on a Litcho suspension too so would want answers too before committing.

I'd also be happy to be a test bed if needed
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Old 1st September 2016, 10:25 AM   #13 (permalink)
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Quote:
Originally Posted by Tin View Post
Interesting.. Could I ask how this would/could work with a car with Litchfield Bilstein suspension? essentially similar to the Nissan OEM setup, but different dampers. I'm guessing the current settings for OEM won't work, and custom setup would be recommended?
Tin,

The Bilstein Damptronic shockabsorbers all have the same basic operation



The shockabsorber has a hard setting with the comfort solenoid closed

And a full soft setting with the comforrt valve opened.



Settings between full hard and full soft are created by "Dithering" the comfort solenoid to creat different levels of flow.

The settings that are pre-programmed are soft medium and hard, one great feature is that whatever setting you prefer remains set when you start the car next time.

Where the system get's really clever is the way that the settings are applied in response the G Forges experienced, vehicle speed, braking effort and steering response.

I have a 2010 R35 and the suspension is really comfortable on the soft setting, I also have Cayenne Turbo with air suspension and it feels similar to that on soft.

Many have changed the suspension on earlier cars because it was harsh, this has all gone with the DSC Sport controller.

As the vehicle speed increases the suspension becomes firmer.

Even on the softest setting the vehicle has good road manners as you enter corners, it firms right up, any application of the brake makes the front suspension goes full hard, so immediately makes the car feel stable.

I was at Knockhill with the car on Monday, before going I fully intended to play around with the map settings, yet once on track with the firmer Race setting selected, the car felt firm and progressive, yet you could drive over the big kerbs without upsetting the car since the inside shockabsorber is set to soft while the outside shocks are set to hard based on cornering G's.

The unit also allows you to datalog what is happening which is very helpful.

Clearly there will be scope to adjust the settings via the main map ( shown below) but it is so good out of the box that any tweaks will take a bit of thinking about



There is more in-depth coverage of the DSC Sport system on my website Performance Tuning Systems

Thanks

Hugh
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Old 1st September 2016, 10:49 AM   #14 (permalink)
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the way the damptronic system works is well understood, certainly by me, the question is how the system will be mapped to take into account the variation in behaviour of the different flow rates of the comfort valve.

Litchfield's system is softer on Comfort than CBA oem setup as well as having a different ride height front to rear.

As such the mapping of this system will require fine tuning to take these characteristics into account surely?

That's the question and whether a map is available out of the box.
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Old 1st September 2016, 10:58 AM   #15 (permalink)
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Well Im in for the updates and GB. Any back to back testing on track? In a porsche if need be
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Old 1st September 2016, 12:51 PM   #16 (permalink)
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I'd be happy to travel for a decent demonstration
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Old 1st September 2016, 01:08 PM   #17 (permalink)
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Me too, although I'd probably need a lift home afterwards
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Old 1st September 2016, 02:04 PM   #18 (permalink)
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Me too, although I'd probably need a lift home afterwards
I'm sure some handsome Adonis would oblige
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Old 1st September 2016, 07:12 PM   #19 (permalink)
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Thanks for the additional info Hugh
Does this change/interfere with the Nissan traction control in anyway? or solely the dampering variables?

I'll also be up to travel for a good demo of the system.. There is a sprint day at cadwell in october, or possibly silverstone trackday later in the year?
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Old 1st September 2016, 07:31 PM   #20 (permalink)
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It would be interesting to run the set up on a damper Dyno if it was possible to set up a loom to initiate the inputs to see how well it works.
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