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Message from BMI Racing Pro-10 is poised to make a return as a popular racing class, with racers tiring of the costs, complexity and steep learning curve associated with 4wd sedans this new class is an inexpensive, fast and simple way to enjoy racing again. BMI Racing’s R&D team have been working to develop a state of the art Pro-10 car that is far beyond the old technology of 235mm pan cars, the result of this program is the new DB10R.
Front suspension assembly Step 1 Locate your lower front suspension arms and the hard anodized alloy pivot balls. Note that the arms are not symmetrical. Pop the pivot balls into the arms with the shoulder on the ball facing up. Do this by placing the ball on a hard flat surface and placing the arm over the ball. Carefully push the arm down over the pivot ball. Be careful. It will take a lot of force. Special Note: The best way to install the pivot balls is with an IRS pivot ball tool (www.teamirsrc.
Step 7 Step 6 Locate the Ti front axles, four 4-40 alloy lock nuts, and two alloy pivot balls. Thread the Ti axles into the steering spindles. Note that the threads on the axles that go into the spindles are left hand. After the axles are fully seated tighten an alloy 4-40 lock nut onto the threaded stub coming out the back of the spindle. Attach the upper suspension arm assembly to the lower suspension arms as shown with 4-40 x ½” screws.
Step 9 Locate four 8-32 x 5/8” screws and 4 thin and 4 thick nylon lower suspension arm risers. Pass a screw through the chassis and slide a thin and a thick nylon riser over the screw. Start threading the screw into the lower suspension arm but do not tighten it. Pass another screw through the chassis and slide a thin and a thick nylon riser over that screw. Start threading the screw into the other hole on the lower suspension arm. Tighten both screws. Repeat on the other side.
Step 11 Step 12 Take a minute to prepare all your carbon components for assembly. With a file or sand paper knock off any sharp edges along the perimeter or the carbon parts. The cell slots in the chassis are designed to fit the cells properly if you just knock off the sharp edges. If you bevel the cell slots the batteries will hang below the bottom of the chassis. Special note: Carbon fiber dust is really bad for you. Always wear a mask and eye protection when sanding or filing carbon fiber.
Step 15 Locate the two alloy rear pod plates, the alloy rear pod plate spacer tube 2 4-40 x 3/8” flat head screws and 4 4-40 x ¼” flat head screws. Step 16 Locate and install the two long gray anodized threaded spacers as shown with 4-40 x ¼” flat head screws Attach the alloy pod plates to the lower carbon pod plate with the 4 4-40 x ¼” screws. Attach the alloy rear pod plate spacer tube to the allow rear pods with the 2 4-40 x 3/8” screws.
Step 18 Locate the damper tube parts bag, the rear pod top plate and 4 4-40 x ¼” flat head screws.. 1. Thread a 4-40 x ½” set screw into each of the 4 ball cups from the damper parts bag. 2. Thread a ball cup/set screw assembly into the ends of each of the damper tube pistons and damper tubes. Step 19 3. Apply 10000wt silicon diff oil to the pistons and insert them into the damper tubes. 4. Attach the alloy pivot balls to the bottom of the pod top plate and the tops pf the side wings as shown above.
Step 21 1. Attach the battery retention plate to the 3 alloy stand offs with 3 4-40 x ¼” flat head screws. 2. Assemble the IRS Nickel-Teflon Macro Shock as per the included instructions with 40wt silicon shock oil. 3. Install the included center shock spring onto the shock and snap the shock in place. Trim both of the ball cups that thread onto the ends of the shock to .630” (16mm) in length. Thread the ball cups on the ends of the shock so the over all shock length is 3.11” (79mm).
Step 24 Step 23 Install a 4-40 x ½” set screw into each flex plate. Insert the IRS precision ride height adjuster cams into the rear alloy pod plates. Insert a 3/8” x ¼” flanged bearing into each ride height adjuster and insert the axle as shown. Install your favorite wheels and measure the width of the car. Shim as necessary to obtain a centered axle and a 200mm rear track width. Special Note: The DB10R is designed to work with IRS precision ride height adjuster cams.
Step 27 The Servo mounts are attached to the lower chassis with two 4-40 x ¼” flat head screws. At this time drill out the center holes on your servo saver (not supplied) for two Nickel Teflon ball studs. Secure them with two 3/16 alloy lock nuts. Locate two titanium turnbuckles and four black ball cups. Assemble them as shown and adjust them to an over all length of 2.66” (67.5mm). This is a starting point.
Mounting Electronics (4 cell & Saddle LiPo) The “Center Mass“ chassis layout of the DB10R is one of the features that really puts this car ahead of the pack. This chassis design moves the batteries forward and places the electronics between the battery and the motor pod. This accomplishes two things. 1. The batteries are moved forward to obtain the proper weight distribution. 2. The electronics are located in the most efficient location (short power wires, tidy receiver wiring).
Mounting Electronics (Stick LiPo) This is the recommended electronics installation when the DB10R is powered by a stick LiPo battery. You will need to purchase the “Stick LiPo Mounting Kit” (www.bmiracing.com, DB5900) in order to fit the battery. The “Stick LiPo Mounting Kit” consists of 2 longer alloy stand offs that makes room for the taller battery.
