Address: Penske Racing Shocks-The Mill House, Packington Hayes, Litchfield,
Staffordshire.
WS14 9PN
Page
9
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E-mail: [email protected]
Tel: 01543 434 580
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.
Mid
Corner
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.
Corner Exit Under Steer/Push
a. Add front rebound, try and hold weight on the front tires longer increasing grip.
b. If it is still over steering, increase rear compression. This will balance out the chassis by
taking some grip away from the rear.
Corner Exit Over Steer/Loose
a. Reduce rear compression. This will allow quicker weight transfer to the rear tires, creating
more grip.
b. Reduce front rebound. This again will transfer more weight to the rear tires resulting in
more grip
Gas Pressure
Gas pressure is like spring rate. This is more used for a fine tuning adjustment. 50psi is
similar to 5-10lbs of spring rate. Adding more gas pressure is a common adjustment for
qualifying, when you need to get your tires to max operating temp very quickly. If you do
this, remember to reduce PSI before racing or shortened tire life may result.
Drag Racing Track Tuning
Normal adjustment steps for Drag Racing:
Compression: Adjust 5 clicks at a time.
Rebound: Adjust 2 sweeps at time.
To Increase Bite:
Soften compression or stiffen rebound. Example: hot and greasy track /
bald spots on starting line.
To Decrease Bite:
Stiffen compression or soften rebound. Example: Track conditions are at
their best / starting line is covered with good rubber.
When using a pneumatic (air) bleed off eyelet:
As each chassis and track is different, we
recommend consulting a Penske technician for help with the setting of timers and other air
bleed-off mechanisms.
