Penske Racing Shocks 8300-DA - Manual (Page 9)

PS-8300RM/PB · DOUBLE ADJUSTABLE 2013/2014
9
Track Tuning:
Compression Adjuster:
There are a number of different ways to tune a car, with either compression or rebound. Below are a
few good starting points for compression.
1.
Entry Under Steer/Push/Tight-
a.
This typically is a result of too much front compression. Soften compression -5 clicks.
Soften the compression until you lose platform in the front of the car, or the front feels
under supported, then go back +2 clicks.
b.
Soften rear rebound. Sometimes too much rear rebound will not allow weight to
transfer to the front which can cause and under steer condition.
2.
Entry Over Steer/Loose-
a.
Add rear rebound. You don’t want to take grip away from the front if you don’t have to.
So first work on the end of the car with the grip issue, in this case is the rear. Stiffen rear
rebound, if the rear is too soft, it will allow too much weight to transfer to the front too
quickly. By slow this, you will keep more weight on the rear, generating more grip,
longer into the corner.
3.
Mid Entry Under Steer/Push/Tight-
a.
First try and determine if the chassis is taking a set, then going into under steer, or if it
under steers before taking a set.
i.
If it takes a set, then under steers, add compression to the front. This will
support and slow the weight transfer just enough to eliminate or help the
condition.
ii.
If the chassis doesn’t feel like it is taking a set, or feels like you not into the
track, soften the compression, this will make the chassis more compliant, allow
weight transfer a little quicker to the front tires and help increase grip.
4. Mid Entry Over Steer / Loose-
a. Determine if it’s off throttle or on throttle. If over steer is induced when getting back to
throttle, soften rear rebound.
b. If over steer is coming off throttle, add rear rebound.