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JAG Hobbies TR-3 chassis?

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  • JAG Hobbies TR-3 chassis?

    Been searching and reading and came across JAG Hobbies TR-3 chassis, like the idea and looks like good stuff, see they have 13.5 ohm armature setup that is not super fast hopefully. Found Harden Creek review on youtube, looks like quality and fits TJet bodies. Anybody running these, thoughts?
    http://jaghobbies.com/ho_slot_cars/jag_chassis_tr-3.htm

  • #2
    It’s been a while since I’ve messed with mine, but I thought it was pretty fast.

    Comment


    • #3
      Here is a review that I posted on an earlier 3D printed version of this car.

      JAG-1.1







      The changes to the car include Mega G front tires, a longer guide pin, reoriented traction magnets and a new plastic material.
      The rolling chassis weighs 13.0g, the front and rear wheels are the same diameters as before. The front tires are 0.395 inches in diameter and the rear tires are 0.438 inches in diameter. The rear tires are softer than most silicone tires, on the track the area under the traction magnets is about dragging on the rails. The guide pin is very long, I trimmed it for clearance. I broke in the motor as before and put on the NASCAR body that I used in my previous testing. The car was bottomed out, so I filed the chassis under the traction magnets, the car turned a 3.259 second lap and was very stuck down and easy to drive. The bottom of the chassis was still dragging a little and I had to adjust my controller for a tiny amount of coast.
      I wanted to see how the car would run with harder/larger diameter tires, so I put on some old Lifelike tires from the mid '90s, those were 0.462 inches in diameter and the car did a 3.509 second lap with more straight line speed and with no coast needed. Next I put on some Super Tires Tyco 426 tires which were 0.444 inches in diameter on the wheels and are somewhat harder than the original tires. With those tires the car turned a 3.104 second lap, which equals the best lap times for a Lifelike M or Tomy SG+ with silicone on sponge tires.
      The Tomy SG+, Lifelike M and Tyco 440X-2 are now history, so I expect that a new car like the JL-1.1 that has similar performance would be welcome. The ability to mount screw post bodies is an added bonus.

      I do not have a TR-3 but I believe that the main difference is that the latest chassis is injection molded. The hitch is that few T-Jet bodies would fit on the chassis without really hogging out the wheel arches. I checked the JAG Hobbies site and the armature is listed as 6 ohms.

      Comment


      • #4
        I need one of these. Just for grins.

        Scott
        Why doesn't my car run like that?

        Scott

        Comment


        • #5
          You can buy a TR-3 with a generic screw-on body for $30-35 or just a rolling chassis for $22.50. To use other makes of bodies you can get a snap-on adapter that has to be glued to the body.

          Comment


          • #6
            I do have one, very fast, lots of magnetic downforce. Pulling the downforce magnets slows them down

            Comment


            • #7
              When I bought my chassis, there was only one model. I see there is now a Club version with a 13.5 Ohm armature now, along with an OOS GT Model with 3.5 Ohm arm.
              I’d have gotten the Club model had it been available.

              Comment


              • #8
                I just noticed that both versions of the JAG chassis have three positions for the front axle. The DR-1 chassis is made for snap-on bodies, not screw post bodies like the TR-3. The DR-1 GT chassis comes with a 3.5 ohm armature, I could not find the Club version with a 13.5 ohm armature.

                Comment


                • #9
                  Chassis explained: http://www.jaghobbies.com/ho_slot_ca...assis_tr-3.htm

                  Comment


                  • #10

                    TR-3 Chassis
                    Designed to fit most screw-on bodies,
                    including JL, AW, Aurora, MM and Dash.
                    (Some bodies may require modifications.)


                    Exploded View
                    JAG Hobbies TR-3 chassis feature the following:

                    - Silicone front and rear tires (medium hardness)
                    - Stainless steel axles
                    - Stainless steel guide pin (plastic included)
                    - Neodymium traction magnets (N30)
                    - Polymer motor magnets
                    - Phosphor Bronze pick-up Shoes
                    - Delrin gears (7T Pinion / 25 T Crown)
                    - 6 Ohm armature
                    - Includes front and rear body screws

                    TR-3 Wheelbase: 1.317" (33.5 mm) / 1.445" (36.7 mm)

                    Front wheels are adjustable.
                    Various Bodies on TR-3 Chassis


                    TR-3 / GT Chassis JAG Hobbies TR-3 / GT chassis feature the following:

                    - Silicone rear tires (Medium hardness)
                    - Stainless steel axles
                    - Stainless steel guide pin (plastic included)
                    - Neodymium traction magnets (N45)
                    - Polymer motor magnets (100% stronger than stock)
                    - Phosphor Bronze pick-up Shoes
                    - Hop-Up gears (8T Pinion / 23 T Crown)
                    - 3.5 Ohm armature
                    - Independent O'Ring Front End
                    - Double Flanged Rear Wheels
                    - Includes front and rear body screws

                    TR-3 Wheelbase: 1.317" (33.5 mm) / 1.445" (36.7 mm)

                    Front wheels are adjustable.
                    TR-3 Club Chassis JAG Hobbies TR-3 Club chassis feature the following:

                    - Silicone front and rear tires (medium hardness)
                    - Stainless steel axles
                    - Stainless steel guide pin (plastic included)
                    - Neodymium traction magnets (none)
                    - Polymer motor magnets
                    - Phosphor Bronze pick-up Shoes
                    - Delrin gears (7T Pinion / 25 T Crown)
                    - 13 Ohm armature
                    - Includes front and rear body screws

                    TR-3 Wheelbase: 1.317" (33.5 mm) / 1.445" (36.7 mm)

                    Front wheels are adjustable.
                    Some bodies may require modification or spacers to fit properly.
                    Designed and assembled in the USA with foreign and domestically sourced parts.
                    All comments and criticisms are gladly accepted.

                    Comment


                    • #11
                      So the club version is magless? Aside from the motor magnets

                      Comment


                      • WB2
                        WB2 commented
                        Editing a comment
                        Oh, drat. A non-traction mag car is what I was after.
                        I guess I was ahead of the times. Again.

                    • #12
                      Originally posted by NDRacer View Post
                      So the club version is magless? Aside from the motor magnets
                      That's what their site states, but I don't have one to check.

                      Comment


                      • #13
                        Here’s my TR-3 with a few bodies sitting on it.
                        Not the best shots....
                        RRR 250 is a good fit; wheels stick out a wee bit from the body.
                        Plastic MkIV OK.
                        RRR Shelby not that good.
                        Resin T70 coupe (w/o body posts) looks good.
                        Wheels could be pressed on a little bit more to get tires farther under the body,
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                        Comment


                        • SlotCat
                          SlotCat commented
                          Editing a comment
                          The RRR 250 and that MkIV are sexy! I've got the RRR250, but who makes the MkIV?

                        • WB2
                          WB2 commented
                          Editing a comment
                          I have no idea on the MkIV. It’s something I picked up at a show a long time ago.

                      • #14
                        Does anyone know what the long wheelbase is? Someone was looking for a 1.7" wheelbase chassis to put under a 3D printed Lancia body. https://www.hrwforum.com/forum/hrw-s...elbase-chassis
                        My club races G-Jet type cars with Lexan NASCAR style bodies. Originally we just ran BSRT G-Jets as they came. Later Wizzard came out with the Thunderstorm and Slottech came out with the Thundercat. We did some testing and decided to allow those cars as well as long as they were factory stock. Next everyone switched from ceramic to ceramic grade polymer magnets. Viper Scale Racing came out with the Viper Jet, Wizzard changed the style of their pickup shoes and springs, Slottech came out with two other variations of the Thundercat and some BSRT cars had different gear ratios. All of the makers have alternate parts like hot stock armatures, improved endbells, chassis with a different flex, etc. that may not come with a regular factory configured car. Wizzard now has a brass version of their new Fusion car and now we have the JAG TR-3 Club car. Considering that the original intent with this class was to buy a factory stock chassis and put an appropriate body on it this class is becoming difficult to police. Our rules spell out what parts may be changed, it has become increasingly difficult to write rules that insure a reasonably level playing field.

                        Comment


                        • SlotCat
                          SlotCat commented
                          Editing a comment
                          Sounds like limiting the class to one brand/model of chassis may be necessary.

                      • #15
                        As photographed, the TR-3 was on it’s long wheelbase setting of 1.445”. Short wheelbase is 1.317”.
                        Check out the DR-1:
                        DR-1 Wheelbase: 1.540" (39.1 mm) / 1.663" (42.2 mm) / 1.790" (45.5 mm)
                        Body Clip Information
                        #30-0022A - Fits best with AW Legends, TFD and AFX Van Bodies
                        #30-0022B - Fits best with AFX Narrow Bodies where body clip interferes
                        #30-0022C - Fits best with AW Pro Stock Bodies (wider clip)



                        Under Spare Parts, they list a clip that’s lowered 2.5mm and another clip for Life Like bodies. On the life Like page there is a note the clip doesn’t fit all LL bodies.
                        DR-1comes with a 6 ohm armature.

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