I just did a few scenario's with the above calculator and it doesn't seem quite right for some reason, for a start they say WITHOUT driver, how is the car suppose to get down the strip? and what if you have a jocky drive or a sumo wrestler drive, it makes no difference??? I think not.
Using the 240z an example, without driver and 2wd:
Power at Flywheel (BHP) : 1500
Weight without Driver (KG) : 1177
Power to Weight Ratio (BHP Per Ton) : 1294.89
0 - 60 (Secs) : 2.68
0 - 100 (Secs) : 3.44
60 - 100 (Secs) : 0.76
Quarter Mile (Secs) : 8.26
Terminal Speed (MPH) : 180.43
Drag Strip Quarter Mile (Secs) : 8.16
Drag Strip Terminal Speed (MPH) : 182.76
We have run 7.8 @ 177mph so then I reduced bhp to get the mph to what it says and did this:
Power at Flywheel (BHP) : 1400
Weight without Driver (KG) : 1177
Power to Weight Ratio (BHP Per Ton) : 1208.56
0 - 60 (Secs) : 2.68
0 - 100 (Secs) : 3.58
60 - 100 (Secs) : 0.91
Quarter Mile (Secs) : 8.55
Terminal Speed (MPH) : 175.20
Drag Strip Quarter Mile (Secs) : 8.45
Drag Strip Terminal Speed (MPH) : 177.41
Now the mph is correct but the ET is WAY slow and its usually the other way round with anything other than a REALLY well setup drag car, usually you can get pretty good mph which is a good indication of whp but your ET is a few 10ths off.
On the calculator I use, I have compared many cars dyno whp figures with their mph at the strip and its been extreemly accurate, most cars are a few 10ths off on the ET but the better cars are closer to their "ideal ET"
On the calculator I use, if we put in 1200whp and 1277kg (including driver) for the 240z we get an ideal of 7.75 @ 177mph, this seems accurate as the car is pretty well set up, runs on slicks and does mid 1.2 60fts.
If we put the Drag-r's 1740kg and 1100whp it comes out at 8.75 @ 155mph which shows the whp is there but the track/60ft/driver/whatever needs some work as we only did 9.4 @ 155mph.
If we put the Drag-r's info into the above calculator doing it as they ask and it came back with:
Power at Flywheel (BHP) : 1300
Weight without Driver (KG) : 1640
Power to Weight Ratio (BHP Per Ton) : 805.41
0 - 60 (Secs) : 2.73
0 - 100 (Secs) : 4.04
60 - 100 (Secs) : 1.31
Quarter Mile (Secs) : 9.11
Terminal Speed (MPH) : 165.12
Drag Strip Quarter Mile (Secs) : 8.71
Drag Strip Terminal Speed (MPH) : 171.87
There is NO WAY IN HELL the drag-r would run 171mph on a well prepped strip even on slicks.
Then compare that to the same internet calculator with the 240z:
With the Drag-r at 100hp LESS and around 450kg HEAVIER it says it should run only 6mph slower??????? WTF????
Something aint right with that but its all very interesting indeed.