by Josh's Dad » Mon Apr 18, 2016 8:38 pm
The Capri is a great running car when setup properly. I haven't run into a Racer Sideways that couldn't be made into a great runner.
To determine what you should do to tune your Capri, you should tell,us what kind of track you are running on. Plastic or wood, if plastic what brand? What is the size of the track? What tires do you run on the track, silicon, rubber, urethane? Is the track fast with long straights and large radius turns or is it more technical with shorter straights and tight radius turns?
Regardless of the track your drive on:
1. Strip the car down to the chassis. Check the chassis on a set up block to make sure it is flat. If it isn't flat, bake the chassis. There are many online resources and video on how to do this.
2. Replace the Sideways motor pod with a Slot It anglewinder pod. If your driving style benefits from a lower center of gravity or if more magnetic downforce benefits you, get a 1.0 mm offset pod. If you prefer more tire in the rear go with. 0.5 mm or 0 offset pod. These pods should give you enough room so fit a wider rear wheel and tire combination. I like the Slot It 17.3x9.75 magnesium short hub wheel. The sideways wheel inserts will fit in these wheels.
3.Determine the best gear ratio. I like the Slot It 6.75 mm diameter pin ions compared to the 6.5 mm pinions. They are available in 11 and 12 tooth. Purchase a Slot It Ergal anglewinder gear. You can reuse the orignal axles.
4. Install the motor in the Slot It motor pod. Make sure you use the adapter for Flat six motors on the non drive side if the motor. If you want magnetic downforce make sure the motor opening is facing downwards. Place the motor as far down was possible and use the top motor screw holes in the pod to screw in the motor.
5. Generally I don't use a spacer between the anglewinder gear and the pod, but sometimes I will place a .005 or .010 spacer between the gear and pod. A trick to placing your pinion gear, I like to use the Slot It pinion press with the SP30 professional upgrade. Take an old axle and place the anglewinder gear at the very end of it and tighten the gear on it. Insert the axle into the pod. Use an anglewinder stopper on the other side of the pod to keep the axle in place. Install the pinion until the anglewinder gear and pinion mesh properly. Take out off the stopper, gear and axle from the pod.
6. Install the pod in the chassis. Use the 2 front and 2 rear screw holes. I run the screws 1/2- 1 turn loose. Generally I cut off the middle attachment arms. Install the axle in the pod and then the gear, stopper and spacers if indicated. Install wheels and tires and trial fit into body. I run the body 1/2-1 turn loose. Make sure the tires aren't rubbing against the body or pinion. Adjust accordingly.
7. Set up the front axle height. You need to choose your the tires before doing this, I like Slot it PT 15 Zero grip tires for the front axle. Also install and adjust your braid. Using the axle height adjustment screw holes use the appropriate length m2 grub screws. If running on plastic track set up the front axle so that the front tires are almost touching the track surface. Plastic track is a little bumpy and having a little space between the tire and track surface will help keep the car from coming out of the slot. Set up the bottom grub screws first to get the right height. Screw in the top grub screw so that the grub screw are barely touching the axle. Back out the top grub screws 1/2-1 turn. If running on wood track that is generally much smoother than plastic track set the top screws first so that when the guide is fully in the slot, the wheels are touching the track surface and the top screws are touching the axle. Then screw in the bottom grub screw so that the grub screws are barely touching the axel and the axle spins freely.
8. Oil, and lube up appropriately. Screw in the body. I run the body loose 1/2-1 turn.
9. Run the car. You will need to make adjustments by loosening and/or tightening the screws to fit your driving style. You may need to add a little weight depending on your track and driving style. It will take a little time. Have some patients and these cars will be some of your best performers.