In regard to iRacing, the game ffb is certainly low on surface detail compared to most titles. The low ffb resolution is an obvious limitation but, some players like using irffb as a work-a-round. I've tried it and didn't like the results (irffb). The telemetry effects in SimCommander work much better imo but, GD has focused much of their attention on iRacing so they may have incorporated a bit of magic-sauce where iRacing-ffb is concerned (hence the SC2 processor design).My wild guess is the Pro is somewhere around 80% of their sales, with the Ultimate at 5% and the Sport at 15%.
The Ultimate will sell 5% just because it's there and money would left on the floor if they didn't offer it.
The Sport model is in a market that I consider a bit nebulous. I don't expect to run more than 10-12 Nm, but I understand the need for headroom to avoid clipping. In a amplifier I would expect the peak power to be 2-3 times the RMS or max steady state value to avoid clipping. From what I've read these motors may not quite need that much, but a buffer is important. So that would mean running the SC2 Sport at about 8Nm or the same power as a CS 2.5 wheelbase.
The $200 difference doesn't seem to me like it should be significant because of the cost of new steering wheels or converting Fanatec wheels over, but it still may be an important price point.
The slew rate should be directly related to immediacy and accuracy. There are filters that are supposed to smooth out graininess, but that is different from covering up detail. Ideally that is more like a good DAC upsampling and interpolating a digital music signal to create a smoother analog signal.
I don't know the specifics of these filters, but I keep hearing how great the SC2 Pro feels in iRacing and yet iRacing's FFB resolution is supposed to only be 60 fps and the filtering is supposed to make that feel great.
Don't worry, it doesn't work like speaker/amplifier RMS and peak power levels. If you get a Sport, run it at a max setting of (eg.) 12, 15, or 17 Nm all day. These devices are meant to constantly run at those types of levels. Don't worryThe Sport model is in a market that I consider a bit nebulous. I don't expect to run more than 10-12 Nm, but I understand the need for headroom to avoid clipping. In a amplifier I would expect the peak power to be 2-3 times the RMS or max steady state value to avoid clipping. From what I've read these motors may not quite need that much, but a buffer is important. So that would mean running the SC2 Sport at about 8Nm or the same power as a CS 2.5 wheelbase.
Don't worry, it doesn't work like speaker/amplifier RMS and peak power levels. If you get a Sport, run it at a max setting of (eg.) 12, 15, or 17 Nm all day. These devices are meant to constantly run at those types of levels. Don't worry
I don't think you need as much headroom as you suggest though, and when clipping occurs, you are simply losing detail and experience only constant spring force so it becomes quite obvious with DD. I'd even say soft-clipping is a non-issue with some pretty basic tuning knowledge.I'm not worried about the device burning up in the least. Just like I'm not worried about an amplifier clipping. The amplifier is fine. It just sounds bad. The same difference here. If you are loaded up in a corner and the motor is already pushing hard and it gets a signal beyond that it will clip which won't feel good.
You noticed that Beano said he liked the Ultimate because he could run it harder without clipping. He isn't running anywhere close to the maximum Nm, but then it has room to give him a quick spike so he can still feel detail. He also runs the Pro well down from it max limit so it has headroom so you can feel detail.
That's why I said 8 Nm on the Sport. Maybe you would want to push as high as 10, but you will be losing detail because the motor won't have any room to go when you are pushing it in a corner.
I'd go with the Sport. The maximum acceleration and RPM possible with the Sport is already almost certainly much faster than experienced in real life racing (except maybe a sudden massive accident in real-life which seems to be fairly similar to speeds and accelerations exhibited by DD wheels). Same with slew-rate, the fidelity and "sharpness" that that slew-rate offers on the Sport is probably more than needed anyway. In fact, you'll probably wan't to lower the slew-rate any ways as people have been finding that decreasing these DD wheels' output "sharpness" / "acceleration" - via lowering the torque slew-rate - often results in a better feeling & more realistic FFB behavior than not lowering torque slew-rate but adding more damper & friction.
Even though I'm recommending the Sport, I personally went with the Pro. The reasons are:
- the Sport does not offer "torque slew rate limit" adjustments (I believe lowering this setting can help in providing more realistic FFB)
- the Sport does not offer "non-linear force saturation" adjustments (this filter has not yet been implemented by Granity but it will and it's in their ads)
- I figure since the Pro's motor is made to handle higher torque, it'll be getting "stressed" less than the Sport for the same amount of torque. Having said that, I bet the Sport will be just as reliable.
If Granity change their mind later and make the torque slew-rate and non-linear force saturation settings also available to Sport owners, then I'll probably slightly regret getting the Pro over the Sport. You save a decent chunk of money with the Sport, it's smaller (shorter), lighter, and only requires 1 power cord & brick. And last but not least - but this is pure speculation so take it with a grain of salt - smaller DD motors tend to have less inertia which means more fidelic and detailed forces (everything else being equal).
Trust me, you can run way higher than 10 Nm and still have room to feel more. You can be loaded up at 15 or 16 Nm and still feel more. Plus, even if you're loaded up at, let's say at a static 17 Nm, the wheel can still move with harsh speed/power left or right to signify a bump. Mostly the only time you can run into issues is if you turn the wheel, let's say 100 degrees, your steering loads up with a constant 17 Nm of resistance, now you realise you have more grip available and turn the wheel even more to 120 degrees but there's no more power remaining for the wheel to add (since it was at 17 Nm at 100 degrees). I highly doubt you'll come across an issue like this as a static 17 Nm resisting your inputs is extremely heavy.I'm not worried about the device burning up in the least. Just like I'm not worried about an amplifier clipping. The amplifier is fine. It just sounds bad. The same difference here. If you are loaded up in a corner and the motor is already pushing hard and it gets a signal beyond that it will clip which won't feel good.
You noticed that Beano said he liked the Ultimate because he could run it harder without clipping. He isn't running anywhere close to the maximum Nm, but then it has room to give him a quick spike so he can still feel detail. He also runs the Pro well down from it max limit so it has headroom so you can feel detail.
That's why I said 8 Nm on the Sport. Maybe you would want to push as high as 10, but you will be losing detail because the motor won't have any room to go when you are pushing it in a corner.
This is strange. Ads state that the Sport model will not get torque slew-rate adjusments nor the FFB linearity/sensitivty adjustment filter when it becomes available. I thought Granity purposely did this as a marketing strategy to drive more sales away from the Sport to the Pro.View attachment 324010 Slew rate limit adjustment is available on the SPORT too, dont know why they wrote that on the specs...
Hi hishams. If the "torque slew rate limit" and "non-linear force saturation" is also available on the Sport which it is (according to alfye's picture) then I am even more in favour of the Sport. If I knew the Sport would receive all the filters the Pro would receive then I would have easily purchased the Sport over the Pro and put the $200 USD (or more after taxes) towards a set of pedals (or something else you may be thinking of purchasing like a wheel-rim, cockpit, shifter, monitor, etc.).Hello man, I find it interesting that you are recommending Sport eventhough you own the PRO.
According to your recommendation you are somehw saying that "torque slew rate limit" and "non-linear force saturation" (which is not available on the SPORT) is not that important, or it is not worth the extra money. Or?
Isn't that what new Static Force Reduction filter supposed to help with?Granity have looked into a S.A.T. filter to help alleviate this issue with our FFB games (and current FFB tech) as I suggested to them in their official forums but they said it will be almost impossible without using telemetry-based filters (which they don't currently offer).
That filter is more designed for steering application (adding steering lock) and holding steering lock but I'm betting you're correct and I'm guessing it may have the knock-on effect of helping with S.A.T. too. That filter is what I personally refer to as a "dumb" filter/effect though (ie. baked in the motor's FFB like inertia, damper, friction, etc.), it's not what I refer to as a "smart" filter/effect (ie. telemetry-based) therefore It'll apply to all FFB/steering movements that it's designed to affect rather than dynamically work with specifically just S.A.T.Isn't that what new Static Force Reduction filter supposed to help with?
Static Force Reduction
This effect reduces force in long corners, while at the same time, letting the sharp details from kerbs and the road surface through to the wheel. This is useful when the Driver wants to feel every detail with full strength torque effects but does not want to fight against the wheel constantly.