Kenneth
1 AYC Bar
I would adjust your spring preload. Adding spring preload will raise the front nicely. VR-4s don't have much issue with rebound travel in the front, though I have had some issues with preloading the rear of a Galant.
Personally I think your springs are too soft and your dampers are way too hard. The bounce comes from the dampeners being too hard for general driving. The way to look at it is frequency response. If you go slow, you need lower frequency response in your suspension so that the wheels can conform to the shape of the roads it travels over, so you need the dampeners to give (be soft). At high speed, you hit bumps faster and more of them in any set amount of time, so in this case you need to make sure the energy pushing the wheel up is braked so that the wheel doesn't fly up and lose contact with the road, hence a high damper rate. Since it sounds like your height is OK, you shouldn't have to worry about roll centre changes causing excessive body roll either.
There are people who disagree of course, opinions are like arseholes, everyone has one.
Best is to do some reading and work out what is going on for yourself. Once you understand the physics involved you can make adjustments to suit your goals. The internet has some good resources, though many are quite complicated
Try this one though: http://users.telenet.be/elvo/
It is actually written for RC cars, the great thing about RC cars is that many have the same adjustments as real cars and even their suspension is similar to our unequal length a-arm derived setup. Also, with an RC car you can easily observe the adjustments and how they affect the car. Pretty much directly translates to how you setup your VR-4, except you have much less adjustment in your VR-4.
Personally I think your springs are too soft and your dampers are way too hard. The bounce comes from the dampeners being too hard for general driving. The way to look at it is frequency response. If you go slow, you need lower frequency response in your suspension so that the wheels can conform to the shape of the roads it travels over, so you need the dampeners to give (be soft). At high speed, you hit bumps faster and more of them in any set amount of time, so in this case you need to make sure the energy pushing the wheel up is braked so that the wheel doesn't fly up and lose contact with the road, hence a high damper rate. Since it sounds like your height is OK, you shouldn't have to worry about roll centre changes causing excessive body roll either.
There are people who disagree of course, opinions are like arseholes, everyone has one.
Best is to do some reading and work out what is going on for yourself. Once you understand the physics involved you can make adjustments to suit your goals. The internet has some good resources, though many are quite complicated
Try this one though: http://users.telenet.be/elvo/
It is actually written for RC cars, the great thing about RC cars is that many have the same adjustments as real cars and even their suspension is similar to our unequal length a-arm derived setup. Also, with an RC car you can easily observe the adjustments and how they affect the car. Pretty much directly translates to how you setup your VR-4, except you have much less adjustment in your VR-4.
