SimworX Pro GT V3 LC Pedal Review

I like it when a Sim hardware company takes a different approach to designing a Sim Racing pedal set than most other manufacturers. Using pneumatic cylinders for a dampening feature is something I have not seen in the SRG for a long time. While using air compression as a damping solution, is not a new concept. I think it fits this application quite well. I believe that the guys at Simworx have done a good job at tuning these pneumatic cylinders for the job at hand. The result is a smooth repeatable feel  in the pedals stroke. When using the throttle pedal, I found it easy
to modulate the stroke here. Providing enough sensitivity to be as accurate as I need to be. While I found there was plenty of travel range for me on the throttle, some may want more. The brake pedal provides a lot of adjustment range to satisfy most I think. Once I was familiar with how the pedal adjustments worked, I had no issues dialing it in to my liking. And with a maximum of 140kg of pressure available, again I think most will be able to get the brake feel like they want. The clutch pedal was able to provide a feeling of pushing through the resistance of the pressure plate spring and lifting the plate from the clutches surface. It does have one of the shortest travel ranges of others that I have tested. I wasn’t sure how this would affect heel and toe work when driving. But was pleasantly surprised at just how well the short travel lent itself to this technique. I was up and running using heel in toe in no time at all. Happily stabbing away at the clutch pedal and never missing a shift because of anything it was doing. I actually became quite found of the clutch pedals action and travel. Now the overall quality of this Pro series set is very high. Consisting of 3mm thick powder coated steel plate in all the right places throughout its construction. And joining everything together with very good looking welds. When you have
this set in hand, it looks like it will be able to withstand a lot of punishment for a long time. This is the first pedal set I have had in the SRG that used the Linear magnetic position sensors. Contactless sensors should ensure a long life cycle here. Not only did they function without issue though out my rather aggressive testing, they also lend themselves well to the overall look
of the pedal set I think. Now this pedal set comes in at 1025.00 shipped to the USA from Austrailia. So, you will want to consider that when going over your options when looking for a pedal set
to meet all of your Sim racing requirements. Overall I consider this set to be a top tier unit. That will hold its own against other top sets available to the serious Sim Racer.

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SHH “NEWT” H-Pattern/Sequential Shifter Review

The main casing on this unit is made from 3D printed ABS filament. Which is known for its toughness and durability. I did try to flex the case from the sides and only found one area where I could produce a very small amount of movement. But not enough to cause any problem for the internal parts. I thought the way this shifters internal mechanism works is quite clever. Pushing
down the shifter lever and rotating it 90° is all it takes to go from H pattern mode to Sequential mode. Using roller bearings to ride in the Derlin shifting ramps gives a smooth action to all of your shifts. With the notches in between providing a feel of actually engaging a gear. Of course, this action is much lighter than what you would find in a real gear box. Another plus here
is that there is no contact with the magnetic sensing electronics when making a shift. This does away with a wear point that other shifters may have. I also like the way the PCB boards that
contain the sensors are mounted with a spring suspension feature. Which will provide for better long term durability. Also of note here is the attention to the detail on this shifter. Little things like adding an additional internal plate to the design for protecting the cabling that runs the length of the shifters case. When driving the SHH I found it easy to come up to speed and produce accurate shifts. The shift lever moved smoothly between the gates. Allowing quick up and down shift combinations. I was wanting for more resistance to the shifting force. But I do think its
force, at the maximum setting, is in line with other shifters at this price point. I also ran the SHH in sequential mode. Here again, this unit did the job of letting you know you had made a shift. Nothing special here. It just gets the job done. Mounting the shifter to aluminum profile was quite easy and I was able to get as solid a mount as an ABS cased shifter can get I think. Still
as expected there is movement in the shifter case when driven aggressively. But not enough to ruin the experience. The SHH also comes with enough extras in the kit, like shifter gates and knobs, to give you good sense of value to the package. And you can get it in four different colors. With custom features available for additional cost. The mount you choose will also be extra.
But at the end of it all I think most will be happy with what they get in the SHH shifter.

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Heusinkveld Sim Pedals Sprint Review

I have been looking forward to reviewing this kit for some time now. Finally, thanks to a fellow Sim Racer I know, I am able to put them through the SRG’s review process. This set
has some notable differences from the Pro pedals set that the Sprints are replacing. Where there was stainless steel plates used throughout the pedals now we have some powder
coated steel plates mixed in. I noticed that now there are nuts securing one side of the frames where before there were cap bolts on both sides of the frames. Overall the
build quality is up to the usual standards we have previously seen from Huesinkveld. Which is very good. The throttle was easy to dial in and has a lot of range in it’s
adjustability. I had no problem getting it dialed in to my personal preference. The brake is similar to Pro brake but with some changes to how the bumper stack is arranged.
Now including a spring to simulate the initial slack that most every brake pedal has. I tried every rubber bumper setup to see which I preferred. I ended up with the
thinnest one mounted. Of course the brake performs very well and it is easy to be consistent with your lap times with such a predictable brake feel. The clutch mechanisms the
biggest change from the Pro’s setup. It has a completely different look to it. I was able to dial it in to get a close feeling that I was using a real clutch. I was able to easily use a heel and toe
technique when I had the pedals set up for it. That is the best test for a pedal set I think. The pedal base that HE sells for the Sprint pedals did it’s job well as far as providing
a rather solid way to mount you pedals and have place to rest your heels. But, as you may seen in video, I think mounting the platform could be made a much easier task than it is
as configured. The U channel rails that support the mount and heel plates needs to be a bit wider to allow access to the screws with an Allen wrench. I was bit surprised to see
the solution to this access issue to be a set of hex head 5mm bolts. They actually turned out to be too long for use with 40 series profiles and the included roll in spring ball T nuts.
Just not the usual top notch solution I am used to seeing from the Huesinkveld team. Overall the Sprint set is well built, using strong materials, and top notch parts. Even though a lot has
changed between the old Pro pedals and new sprints. One thing hasn’t changed. They are still a great performing set of pedals that are a lot of fun to use.

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Turn Racing R20 Wheel Review

It’s good to see that Zack is paying attention to user feedback on his wheels. And implementing changes where he thinks they will do the most in improving the user experience. This is
quite evident in the R20’s result. Now using a 5mm thick aluminum plate for the wheels center section. It has added a stiffer feel when in use over the previous R1 wheel. Which uses a 4mm thick plate. And as you may already know by watching my videos, the SRG is always looking for Sim racing hardware with the lease amount of flex possible. The bottom wheel spoke is a bit longer, and the side spokes have new thinner profile. These changes allow more room in the wheel for larger button plate designs. I was able to fit both the medium and
large sized Ascher Racing button plates into this wheel. With the R1 I was only able to fit the medium sized button plate. Having more options for button plate selection is always a good thing. The grips on the R20 are just a bit smaller in diameter than the R1. It is noticeable when switching back and forth between the two wheels. I could go either way here. So, this change does not have very much impact on the overall feel between them. Of course how a wheels grip feels couldn’t be much more subjective I think. And the only way to know if you
will like the way a grip feels is to try it yourself. The suede leather wrap on the R20 is well done. And all of this is done by hand on each wheel produced. Which is no easy task. If you have ever tried to do this yourself you know what I mean here. I have no problems with fatigue or cramps in my hands when using the R20 to race. Even on longer stints. I am torn a bit here between the R1 an R20. But I think the thicker aluminum used on the R20’s center section may be the deciding factor for me personally.

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Hybrid Racing Simulations Xero-Play QR Review

When it comes to using Direct Drive wheel systems, a solid connection between your steering wheel and the motors shaft is essential to realizing the full potential of the
Force feedback queues you DD system is capable of delivering. Now you could just bolt your wheel directly to the hub adapter on the motor shaft and that would be fine. But, if you use more than one racing wheel. Then a Quick release system is something that will make your Sim racing life a lot easier. We still want that solid connection
between the wheel and wheelbase. Previously the only quick release system I would recommend was the Q1R kit. But now we have the Xero-Play QR kit and it is every bit
as good as the Q1R. Constructed from 6061 aluminum, and stainless steel, it has a light weight yet very solid feel to it. And once clamped down, I was never able to detect
any movement or flex in the mating surfaces. I’m sure this result is due to the way the bottom of the mechanism presses the triangle mating surfaces together. And because of the tight tolerances used in their manufacturing processes, I did not have to make any adjustments to the clamp when changing between different wheel side adapters. At
least for the three that I have here. Something that has been a sore point for me and others when using the Q1R wheel side adapters. Where tolerances are not as tight. The Xero-Play has a nice finish on every aspect of the pieces used here. Which gives it a very nice professional appearance. But I would like to see the points on either side
of the top clamp plate rounded off a bit more to relieve the sharp feeling they have when releasing the clamp during wheel changes. It doesn’t affect the performance
of this system, I’m just making and ergonomic observation on the kit I have. Overall the Xero-Play Quick release is impressive in how solid of a connection it has. So much so that now I now have two quick release kits I will recommend when it comes to choosing a Quick Release system for Direct Drive Force feedback wheelbases. Giving
the Xero-Play the nod between them for what seems to be tighter manufacturing tolerances on their respective mating surfaces.

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Frex H Shifter+ Review

I’ve had my eye on this shifter for a few years now. And finally thanks to a fellow Sim Racer who was kind enough to send me his we can put it through the SRG’s review
process. According to the Frex website. This shifter is modeled after the one in a Porsche 962C race car. It has a short throw that reminds me of my old 2001 Honda S2000 shifter. It also has a very nice engagement when pushed into the selected gate. Creating a satisfying tactile click. It does not take much effort to make shifts here. And you do have some tuning capability using the shifters frictio adjustment screw to dial in your own preferred resistance. Due to it’s all metal construction, the body of this unit has a nice solid feel to it. I think Frex made some good choices here as to where to use aluminum and where to use stainless steel. With the stainless steel bits located at key
wear areas encountered when making shifts. Frex also paid attention to the details when designing this shifter. Things like the curved ramps milled into the shifters stainless
steel gate plate. Which helps give the shifter it’s smooth feeling action. In the look inside segment we saw what looks to be parts that should be easily replaced if the need should arise. I like the way the momentary buttons are used to signal shifts. Again a part that would not be difficult to replace. After using this shifter for a few days, I have become rather found of it. Now there is irregular spacing between the gates here. With the distance between gates one and two further away from gates three and four than five and six are. But not anything to really hinder shifts once your muscle memory has properly adapted to it. The side to side travel between the gates is more than most I have used. Still smooth and precise gate engagement makes you forget it’s there. But nothing is perfect and the one area I would like to see an improvement would be the available options for mounting it. Now don’t get me wrong, the front mount here does do its job. But I think having an optional plate that you could mount to the bottom allowing attachment holes down the side would improve the overall performance and feel of this shifter. Overall, I think the 460.00 price tag for this shifter is justified in the
build quality and performance that we have seen in this review. And I would feel confident in saying this is the second best H-pattern shifter that has been through the SRG’s
review process to date.

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Precision Sim Engineering GT3 Wheel Review

Simon has been making custom Sim Racing wheels for a number of years now. And his experience shows when you have one of his wheels in hand. Truly a custom result. Features that you only see in a hand assembled wheel. Like the custom ordered Sparco wheel with a heavy carbon weave vinyl grip wrap and a nicely done Sparco embroidered logo. The button plate housing precisely CNC’d from a single piece of aluminum. With chamfering and seams in all the right places. I like the way separate button pods are implemented here. Raising the buttons, switches, and rotory’s past the plane of the rims center plate. Providing easy access to all the controls. And nice finishes like heavy decal material and the complex carbon trim plate the gives nice reveal between the rims hub, spokes and the aluminum button plate. The buttons on this wheel have a good tactile feel. As do the momentary switches. The rotory’s are what I consider the best I have tried so far in the SRG. With nicely spaced detents, and just the right amount of friction when turning it. And no play in the shafts. The PSE shifters are top flight kit. Providing a nice tactile click with every shift. Machined from aluminum and mated to a GT sized carbon paddle. Still I would have liked to see some kind of adjustment feature for the paddle’s lateral position. The hub that you will attach a quick release to is a 50.8mm pattern. So you
if you use 70mm patterned wheel side quick releases you will need to get the available adpater that PSE makes. Now, at 895lbs which converts to around 1120 dollars, this wheel
is expensive. And certainly intended for the serious Sim Racing Enthusiast. That only want the best for their driving experience. And the GT3 wheel from Precision Sim Engineering in my opinion, does deliver that regard.

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GTOmega Sport Chair Review

I like that this unit has a lot of adjustability in it. Just the arms have no less than four different ways to adjust them. Of course you have the expected adjustments to height and seat angle that most chairs have. I was able to find a comfortable seating position. But would have liked the chair to go just a bit lower to accommodate my short legs and get my feet flat on the ground. The tilt spring tension adjustment had plenty of range to let me dial in a balanced feeling rocking motion. As for the synthetic leather used to cover this chair I found it to be one of the thickest seen yet at the SRG. Which would indicate a good wear characteristic. All the stitching was clean for the most part, with just one frayed stitch found on the whole unit. Now the one ding I will give this chair is for wrinkles in the covering on the right side upper bolster. Not something I would expect of a chair in at this price point. But GTomega did respond to the issue straight away and the whole seat back assembly will be replaced under warranty. Nice to see a manufacturer standing behind their products this way. Another noticeable difference with this chair is the weight. It comes in at 30kilo, or 66lbs. Not that mass guarantees quality but does decrease any noticeable flex when sitting in it. And gives some credence to the stated 150 kilo or 330lb weight capacity. Overall this chair sits nicely among other office chairs in this price range I think. And worth a look if you are in the market for one.

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Simucube SC2 Third Party QR mounting

If you’re like me. You may already have a Quick Release system that you are vested in. If you have watched some of my other videos, you will know that I use the Q1R system. And I have accumulated a few wheels side Q1R adapters over the years. So even though I personally think the SC2 Quick Release system is a very solid unit with no flex, I will still be using my Q1R system, which is a very solid, no flex system in its own right. Now all we have to do is get it mounted. And the Asher Racing SQR adapter plate is currently the only way to get this done. As you saw in this video, Simucube is using a non-standard or proprietary three hole pattern on the wheelbase side hub. The industry standard three hole quick release patter is a symmetrical 40mm PCD. The Simucube three hole pattern is a lot different. It is 45.5mmx45.5mmx52.5mm. So, you won’t be able to use the three hole adapters out there. Unless, of course you can find one with the same odd PCD measurements. I looked but couldn’t find one. But if you use the Ascher Racing adapter plate you will be good to go. I also liked the shaft clamp design that is used on the 24mm rotor shaft. Clamping both the outside hub and rotor shaft at the same time. Very neat result. So, now that I have my Q1R sitting happily on my SC2 Pro wheelbase I can get on with having some driving fun.

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Simucube SC2 Pro DD Wheelbase Review

What was once a complex do it yourself DD wheel system, has come a long way in just four years. It has been fun watching how the Direct Drive Force Feedback wheel systems have evolved. And the SC2 wheelbases are the next logical step in the ongoing DD wheel revolution. The guys at Simucube have certainly raised the bar with
this new family of wheelbases. With everything except the power supplies, contained within the wheelbase itself. Compared to the SC1 solution, it’s a noticeably smaller
package. But at the same time brings more and faster processing power to the table. Enabling the use of newer filters that need that power to do their job. The True drive software is rather intuitive, and easy to use. With just enough tuning options to allow tweaking the wheelbase to one’s own taste for most I think. But still remaining simple
enough not to frustrate or intimidate people that are new to the whole Direct Drive force feedback concept. And I am told that the Simucube team is working on an even
simpler user interface for those who just want to adjust some sliders and get on with their driving fun. Speaking of driving fun, I certainly had my fair share during this review. The newly developed motor used in the SC2 Pro was a treat to use. I thought it was noticeably smoother than the Mige motors I was using before. So, a great result here in achieving what they set out to do. I was able to get some games to feel the best I have to date with the new Simucube solution. Still there were other games that continue to frustrate. Which had nothing to do with the Simucube hardware and everything to do with some game developers still not properly supporting DD wheels in general. I do like the new SQR quick release solution that they have come up with here. It is a very solid physical connection with no perceivable flex. I had an SC2 compatible wireless wheel on hand to test this feature. They connected without any issues. While using it I never experienced any missed shifts of button presses. I think the way Martin utilizes a stubby antenna on the back of his wheel has something to do with this. Which brings me to one thing I would like to see changed on the SC2 wheelbases. I think it would be great if they would add the same sort of antenna to the back of the wheelbases instead of the current plastic window solution. Wireless signals can be a tricky thing at times. Also, using two power supplies to run the SC2 Pro can present some challenges to the user. You will need to make sure you have the room and they are close enough to
the motor. As the cables that go between the motor and power supply come in at around 1 meter long. Another piece I really like in this kit is the E-Stop assembly. With the
front plate made of metal and the very clever power switch integration, it is a pleasure to use. Overall I think it is clear that the team at Simucube have a winner on their hands with the SC2 Pro. You can tell they put a lot of time and effort into this result. And I think it has really paid off. Still I can’t help but cast a longing look at the very Kollmorgenish looking SC2 Ultimate wheelbase.

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Ascher Racing F28-SC Wireless Wheel Review

When Martin Ascher said he was working updating his wheels and button plates, a lot of us were wondering how he could improve upon his existing products. That to me, were already among the best available. The new F28 SC wheel actually does bring some improvements to the previous versions of his button plates. The new aluminum shifters are crisp and stiff. A noticeable difference in stiffness when compared to the previous, but still very good carbon shifters. The buttons have a very firm feel to them. It takes more pressure to push them than any other wheel buttons I have used to date. Which increases the sense of durability when using them. You certainly know when you have pushed one of these buttons. Even with gloves on. As some may know, I’m all about trying to achieve high levels of stiffness when using Sim racing hardware. This is another area where this wheel design rises above the rest. I has to be the stiffest wheel I have had my hands on to date. I’m thinking that the new 5mm aluminum front plate that replaces the carbon fiber plate used on the previous design has something to do with it. The alcantera grips have held up quite well with me using it in high torque conditions. I had some fellow sim racers stop by to try the F28 SC attached to the SC Pro Wheelbase. And even after them using the grips with no gloves, the alcantera showed no detrimental effects once brushed back out. Of course one of the main features of this wheel it the ability to wirelessly connect to the SC2 wheelbases. And the SC1 wheelbases if you install the plug and play module that is available from Granite devices. I had no problems connecting the F28 to my SC2 Pro wheelbase. No dropouts or missed inputs when using the wheels controls. Which, being such a new solution I was expecting to have some sort of glitch or problem, but I found none. Now this doesn’t mean that no one else will have issues. Being a wireless solution there is always the possibility of having a button press or shifter movement not registering properly. Just didn’t happen to me. I think the external stubby antenna may have something to do with this. One other consideration is that this wheel is 285mm in diameter. My personal preferred wheel diameter has been between 300mm and 290mm. Now that I have had a chance to us a 285mm wheel, I will be adding it to my new lowest diameter wheel I would want to use list. Really, two and half less millimeters on each side of a wheel is not noticeable, to me at least. Overall, I am impressed with this wheel. Martin of Ascher Racing has once again delivered a top tier product. If you are looking for a wireless wheel solution that is oozing quality, I think the new F28-SC wheel is currently the top choice for now.

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iRacing Developer Blog: S4 Updates to the Dynamic Track Model


My name is Dan Garrison, and I am a Senior Software Engineer with iRacing. I was recently on the iRacing Downshift weekly podcast discussing some exciting changes coming to the dynamic track model. The feedback has been great, and I wanted to take a few moments to follow up with more detail. For those who are interested in the more technical aspects of how the sim works, I hope you find the following discussion enjoyable!

The initial implementation of the dynamic track model featured the server maintaining surface temperatures all over the racetrack, and sending this information to the clients. Temperature from one spot to another would vary according to things like the albedo of the surface, the orientation of the surface with respect to the sun, the intensity of solar radiation as a function of the solar elevation angle, shadows, clouds, and finally from the influence of cars. Areas of inactivity in the shadow would be cool, areas in the sun would be warm, and anywhere cars were dumping heat from engines and tires would warm up further. This gave us a model that would actively respond to many of the real-life factors that one would encounter, and provide a range of conditions to deal with as a race engineer and/or driver.

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2019 Season 3 Build is LIVE!

The moment you’ve all been waiting for is here… Season 3 content is officially LIVE! We’ve got an entire fleet of new content for the new season—check out some of the highlights below:

  • New NASCAR Rides: From the Monster Energy Cup Ford Mustang to brand new Whelen Tour and SK Modifieds, Oval racers have plenty to be excited about in the new build. Also don’t miss the updated Gander Outdoors Truck Series Chevrolet Silverado!
  • Lucas Oil Off Road Racing Series: Short course off road is iRacing’s newest discipline! Wheel the Pro 4 and Pro 2 trucks on two of the sport’s most exciting tracks, Wild Horse Pass Motorsports Park and Wild West Motorsports Park.
  • Silverstone Circuit: Longtime home of the British Grand Prix, road racers will be excited for our update to Silverstone to bring the track to its current spec.
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    The Road To New Damage

    Starting Out

    My name is Richard Jobling and I am a Senior Software Engineer here at iRacing. For a long time now my primary focus at iRacing has been to develop our new damage model. It’s been a long journey, and I’d like to share some details from along the way.

    When we first discussed improving damage in iRacing, we focused on the goal of adding parts to the cars that would break off during impact. Immediately I started adding more to our to-do list such as improving the particles and sounds to complement breakable parts.

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    Physics Modeling: NTM V7 Info (plus more)

    It’s been quite a while since I’ve written about the tire model, and I know some of you are eager to hear more about it. It has gone through several iterations since the new tire model (NTM) was first unveiled and I wrote the first incomprehensible blog about it. I am wrapping up the work on the seventh update to the model (V7). Because I haven’t written about it since about the first or second iteration, I’ll include info about version 6 as well. All the cars in the service are currently running on the V6 tire model. All versions prior to that are not worth remembering (except a modified V5 tread rubber model which is used in the V6 tires), so there will be very little here about those.

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