CRX Road to Racing – Part 9 : Pushing some weight around

April 08, 2014

CRX Road to Racing – Part 9 : Pushing some weight around

Now that we had created a safer car it was time to resolve some issues with the suspension and alignment. One of the bigger issues with my car was the lack camber adjustments available except through lowering the car. This is not a good method for adjustment because it will leave different wheels at different angles and/or the car with improper corner balancing.
To resolve the issue of not having camber adjustment on the car I ordered some Skunk2 adjustable front control arms and rear adjustable links. The front upper control arms have slots in them that allow a ball joint to slide in and out of the control arm allowing different camber angles. The rear links have turnbuckles that allow for adjustment as well. After replacing the stock parts you need to have the car properly corner weighted (if you have adjustable coils) and aligned.
It was time to scale and corner weight the CRX. Setting up the corner weights is important because it will help keep the car balanced when racing. The rules for the class I am running in require the car to weight more but also allow me to lower the car more making the center of gravity lower. With the CRX being front wheel drive I was shooting for equal front left to right weight and a 60/40 front rear weight balance. I added some weight to the car so that it would not fall under the minimum weight. Then we disconnected the sway bars and started working. As we made adjustments we kept track on corner weight sheets. When we finished the CRX was above the minimum height and the front weights were within 3Lbs. of each other the car was also about 61% front weight. This is about as perfect as we were going to get the car.
Since we now had corner weights done I made sure everything was put back together correctly before going for an alignment. Figuring out what specs you want your car aligned at can be a difficult task. A good place to start is finding someone who runs a similar car and asking around. After searching, I decided what specs I wanted to set the CRX up with and arranged an appointment with a local shop. Before bringing the car in I wrote up a nice instructional sheet explaining the specs I wanted, how the adjustments are set with my aftermarket kits as well as torque specs for the specific hardware they would be adjusting. When I picked up the car they gave me an alignment sheet and explained the adjustments they made. The first thing I did when I brought it home was put it up on stands and check everything. Unfortunately they forgot to torque down the bolts on my upper control arms so I had to go back for a second alignment. After that was done I put the car on stands again to torque the hardware and mark all of the adjustments. This is also a good time to check the torque on everything on the car.
 
That is all for this issue, with driver school just a week away and race season starting shortly thereafter we will have more articles and new videos soon!



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