Weight Transfer Flashcards
Which factor will cause weight to transfer in a corner?
None of the Above/ body roll, squat, and dive are after effects of weight transfer.
Which factor of weight transfer is solely controlled by the driver?
G-Force
Which vehicle would benefit the most from a high polar moment?
Drag Race Vehicle/ a drag race vehicle would need good straight line stability.
Andy’s drift car has a track width of 60”, a center of gravity height of 16” above the ground, and weighs 2400 pounds. How much weight will transfer laterally if he makes a 1G left turn?
640 pounds/ Need to use formula:
Total Vehicle Weight x C.G.H x G’s / Track Width
Dave’s drag vehicle has a wheelbase of 108”, a center of gravity height of 14”, and weighs 3000 pounds. How much weight will his vehicle transfer if he accelerates at 1.5 G’s?
583 pounds/ must use the following formula:
Total Vehicle Weight x C.G.H x G’s / Wheelbase
Mike’s race car has a 58” track width, weighs 1300 pounds, and has a center of gravity height of 15”. How much weight will his vehicle transfer in a .95 G right turn?
319 pounds/ must use the following formula:
Total Vehicle Weight x C.G.H x G’s / Track Width
Todd is at the race track with his road race car. His car is experiencing too much weight transfer in a corner. What could he do?
Increase the Track Width/ increasing the track width would lower the amount of weight transfer to the outside wheels.
Roll couple distribution is the comparison of the left side springs vs. the right side springs.
False/ Roll couple distribution is the comparison of front to rear roll resistance.
Sprung weight that transfers through the roll center will cause?
Lateral Transfer/ sprung weight that transfers through the roll center will be lateral transfer through the suspension components such as control arms, panhard bar, etc.
The heavier end of the vehicle will transfer more weight proportionally refers to
Static Weight Distribution
Roll couple distribution means the heavier sprung end will transfer more weight proportionally.
True
Joe is working on his oval track stock car. He decides to lower the height of his roll center to achieve better corner handling. What will happen?
More Vertical Weight Transfer
A vehicle with a low polar moment will have
Weight is Located Close to the Center of Gravity
The Roll Axis is an imaginary line that connects between the front and rear center of gravity.
False
A Mass Centroid Axis that is parallel with the Roll Axis will experience what kind of corner handling?
Balanced / Neutral
An example of a component that is 100% unsprung would be
Spindle
Sprung weight on a race car would be weight that is not supported by the springs.
False/ Sprung weight is weight that is supported by the springs, such as engine, driver, transmission, etc.
Andy’s Mazda Miata Drift Car is setting on the scales after he just installed coil-overs. He puts one turn on the LF & RR coil-over adjuster and takes out one turn on the coil-over adjuster for the RF & LR. What is he trying to achieve?
Decrease Crossweight / Wedge/// Taking Weight off the RF / LR and Adding to LF / RR Decreases Crossweight / Wedge.
Left side weight on a race car can be adjusted by turning on jack bolts or coil over adjusters.
False
Zach’s race car has a front roll center height of 3” off the ground and a center of gravity height of 15” off the ground. What is the percentage of lateral transfer?
Select one:
20%/ Need to Do Following Formula:
Roll Center Height / Center of Gravity Height = % of Lateral Weight Transfer
Billy’s race car has the following static wheel weights when placed on the scales: LF - 500, RF - 500, LR - 600, RR - 600. What is the rear weight percentage?
54.5%/ Must Do the Following Formula
Rear Weight / Total Weight = Rear Weight Percentage
Josh’s race car has the following static wheel weights when placed on the scales: LF - 650, RF - 500, LR - 700, RR - 650. What is the crossweight / wedge percentage on his race car?
48%/ Must Do the Following Formula:
RF & LR / Total Weight = Crossweight / Wedge %
Josh’s race car has the following static wheel weights when placed on the scales: LF - 650, RF - 500, LR - 700, RR - 650. What is the left side percentage on his race car?
54%/ Must Do the Following Formula:
LF & LR / Total Weight = Left Side Weight %
Bob’s race car has the following spring combination: LF - 300, RF - 300, LR - 150, RR - 150. Which end of the vehicle will transfer more weight proportionally?
Front/ the heavier sprung end will transfer more weight proportionally.
Crossweight / wedge can only be adjusted by jack bolts or coil-over adjusters.
True
