Cut= Here*********************************************************************
Optional data: Your name___________________________________ Would you object to having your name and your data associated with each other and posted? Yes [ ] No [ ]
NOTE!!!!!!!!! This Test must be run with zero wind! Do the test early Saturday morning before you goto play golf or whatever!
1. Locate a straight stretch of road which will permit you to accelerate to 65 mph and then to coast down to about 30 mph without ticking off the other road users or the Highway Patrol.
2. Drive your car around for at least 20 minutes to warm the tires to operating temperature.
3. Make sure you have a passenger who can read and write. They will write down the times as you call off the speeds during coast down.
4. Estimate vehicle weight. Wv =3D (put weight here) lbs
5. What is your weight? Wy =3D (put your weight here) lbs
6. What is your passenger's weight? Wp =3D (put passengers weight here) lbs
7. What is the ambient temperature? Ta =3D (put temperature here) degrees F
8. Estimate tire temperature. Tt =3D (put tire temperature here) degrees F
9.Measure tire pressures just before test and after warm up. Left front =3D (put left front tire pressure here) psig
Right front =3D (put right front tire pressure here) psig
Left rear =3D (put left rear tire pressure here) psig
Right rear =3D (put right rear tire pressure here) psig
10. Measure from the center of the tire/wheel to the ground. This determines rolling radius. Left front =3D (put dimension here) inches
Right front =3D (put dimension here) inches
Left rear =3D (put dimension here) inches
Right rear =3D (put dimension here) inches
11. Tires are Radial [ ] Bias Belt [ ] Put X in appropriate box
12. Tires are : Type in size as indicated on the tire. Include Mfg. NAme. Front:_________________________________________________
Rear :_________________________________________________
13. Configuration of car: Tiger [ ] Alpine [ ] Put X in appropriate box.
Rag top: Up [ ] Down [ ]
Hard top On [ ] Off [ ]
Tonneau On [ ] Off [ ]
Do you have front air dam on car Yes [ ] No [ ]
Differential gear ratio: Put gear ratio here DGr =3D= _______________
Tranny gear ratio during coast down( data will be used to try and determine efficiency) Put gear ratio here: TGr =3D ___________
Speedo Correction: Over a measured distance (say 5 miles) does your trip meter indicates how many miles? I will use this number along with the measured distance to calculate a correction factor for your speedo.
Measured distance =3D (put miles here)
Indicated diatance =3D (put miles here)
Add any other unique aspects about your car here:
14. What did you have for breakfast...pay attention. This was a trick question!
15. Check weather. What is barometric pressure. Bp =3D (put data here) inches Hg.
15a. What is your altitude? Alt: =3D ________________ if known. Nearest= town is:______________________
16. Ready?
a. Accelerate to 65 mph. b. Put car in neutral c. Keeping one eye on the road, call out when speedo hits 60 mph. d. Passenger, write down time, including seconds. e. Driver, call out when speedo hits 55 mph. f. Passenger, write down time, including seconds.
and so on...
Test run 1. Date:______/_______/_______ 60 mph Time:_____________hrs: min: secs=7F 55 mph Time:_____________ 50 mph Time:_____________ 45 mph Time:_____________ 40 mph Time:_____________ 35 mph Time:_____________ 30 mph Time:_____________
Test run 2. Drive in the opposite direction, if possible, to remove any bias. Date:______/_______/_______
60 mph Time:_____________hrs: min: secs 55 mph Time:_____________ 50 mph Time:_____________ 45 mph Time:_____________ 40 mph Time:_____________ 35 mph Time:_____________ 30 mph Time:_____________
L.E. Mayfield 124 Maximillion Drive Madison, Al. 35758-8171 205-837-1051
DrMayf(at)AOL.com mayfield(at)traveller.com <<<<preferred
"Thought is the software of the mind; rational thought is bug free!"