I've had several guys on my DSC maps. Everyone went quicker than the stock controller. A couple guys picked up like 2-3 seconds a lap. Keep in mind, I didn't make their car that much faster. I just made them more comfortable to hustle a car with insufficient front spring. A pro driver would have noticed the difference, but the gain would have been much more modest.
It's not a great choice on normal roads. If you get it good on the track, it's too stiff on the street. If you soften your race stuff to make it OK on the street, then it doesn't have the ability to control the bumps as well, particularly freeway rollers. The Magneride controller has the street stuff dialed. They have about 3x the tools in the OE controller that you have in the DSC. They can ramp damping in and out in ways you just can't do with a DSC. Every once in a while, the DSC might throw you into limp mode just for fun. It's just a quick OBD2 reset, but it's annoying. Sometimes it won't connect to the software in your computer. Sometimes stuff just randomly gets corrupted and you have to rebuild your map from scratch.
Here's the kicker, if you're really worried about lap times, there are several passive packages that will be faster than the Magneride dampers ever could be, regardless of tuning. DSC was working with the Tractive racing damper company to make an active race package. It was a lot of cash and the valving that Tractive spec'd was garbage. If they would have had a better damper valving, the entire package might have worked a little better. As it was, the juice was not worth the squeeze. The rear springs they told people to run were significantly too stiff, IMO (I know, I know, that's *always* my opinion). The biggest gain I had on the car I worked on with them was dropping the rear spring rate. The guy wouldn't drop it as much as I wanted, but at least he was letting it move a little. All the sudden the thing wasn't beating him up so bad. Dampers can't control the motion if the springs are so stiff you're just bouncing around on the tire.
It's not a great choice on normal roads. If you get it good on the track, it's too stiff on the street. If you soften your race stuff to make it OK on the street, then it doesn't have the ability to control the bumps as well, particularly freeway rollers. The Magneride controller has the street stuff dialed. They have about 3x the tools in the OE controller that you have in the DSC. They can ramp damping in and out in ways you just can't do with a DSC. Every once in a while, the DSC might throw you into limp mode just for fun. It's just a quick OBD2 reset, but it's annoying. Sometimes it won't connect to the software in your computer. Sometimes stuff just randomly gets corrupted and you have to rebuild your map from scratch.
Here's the kicker, if you're really worried about lap times, there are several passive packages that will be faster than the Magneride dampers ever could be, regardless of tuning. DSC was working with the Tractive racing damper company to make an active race package. It was a lot of cash and the valving that Tractive spec'd was garbage. If they would have had a better damper valving, the entire package might have worked a little better. As it was, the juice was not worth the squeeze. The rear springs they told people to run were significantly too stiff, IMO (I know, I know, that's *always* my opinion). The biggest gain I had on the car I worked on with them was dropping the rear spring rate. The guy wouldn't drop it as much as I wanted, but at least he was letting it move a little. All the sudden the thing wasn't beating him up so bad. Dampers can't control the motion if the springs are so stiff you're just bouncing around on the tire.
