GL Racing GLR-GT: Increase Stability with Reflex Racing RX512 Brass Chassis

Описание к видео GL Racing GLR-GT: Increase Stability with Reflex Racing RX512 Brass Chassis

Today, we are returning to the GL Racing GLR-GT and installing a performance upgrade, the Reflex Racing RX512 brass chassis. So there are several brass chassis options on the market for the GT today, from GL itself, Reflex Racing, MWX, and Race Factor. I've been running GL's GL-GT-OP-006. It does the job of dramatically lowering the center of gravity. About a year ago, Reflex Racing came out with their version of the chassis, RX512. Its selling point is forward weight bias which is supposed to reduce dartiness of GLR-GT. Let's see how the installation process goes.

The brass piece is anodized black with polished chamfered edges. All the countersunk screw positions are machined accurately. On closer inspection, there are circular machined marks around the holes. That's not great but no big deal. The most important bits are that the holes line up, and the plate is perfectly flat. From the shape of the chassis, we can see that the forward bias is produced by widening the front and narrowing the waistline.

The Reflex chassis weighs 29g. Meanwhile, the GL brass chassis (not the new hybrid version) checks in at 27g. The Reflex chassis is only 2g heavier overall. Using my improvised weight distribution measurement station, with the OG GL chassis, we have 58g on the front wheels and 67g on the rear. Battery is excluded.

Let's start removing parts from the old chassis plate. The GT frontend and servo saver can be detached in one unit. Similarly, the backend and side links can come off as one unit. Please keep in mind that I have the Reflex tri-damper here.

I ran into the first minor issue when installing the rear pivot ball holder onto the Reflex chassis. Because the machined slot is a bit too narrow, quite a bit of force is needed to squeeze the plastic into it. There's certainly no play here.

It's important to verify that the side links are "relaxed" when setting up a new chassis plate. Often time, the main pivot ball must be shimmed accordingly. In my case here, no change is needed. The motor pod is able to twist and swing vertically freely, and at the same time there's nearly zero yaw movement.

I'm in the process of reassembling parts onto the new chassis. The GT+RX505 rear end came together nicely. When I arrived at the steering assembly, I encountered a second issue with the Reflex chassis. There was some excess metal in the mounting hole for the servo saver post. In addition, I needed to use a filer to increase the diameter slightly to fit. With a little bit elbow grease, the frontend was installed successfully. Everything else has worked as it should.

With everything back together, let's test the electronics and everything. All good. The chassis plate swap was a success! At a quick glance, this GLR-GT doesn't look different than before. GLR-GT + RX505 is an excellent combo and it's a competitive car from superstock and up. Flipping over its back, we can see the forward bias Reflex chassis. Though I ran into a few minor and fixable issues, overall the quality is quite good.

Here is a direct comparison of the two brass chassis designs. Reflex should be able to provide more stability. It's also worth noting that this chassis is much lighter than the recent MWX ProChassis or the new GL Hybrid. It's perfect for superstock.

Let's use our weight distribution measurement station again. We have 62g in the front and 67g in the rear. The Reflex chassis added 4g over the front wheels while keeping the rear identical.

This is Sammy and thanks for watching!

Music: "Instructions for Living a Life", Savfk (   • Instructions for Living a Life by Sav...  )

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