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karl elwell
19-04-2006, 15:08
Anybody tried this?

http://www.letstorquebhp.com/calculator.asp
sr20-power
19-04-2006, 15:10
theres nothing dodgy about that is there
TAS
19-04-2006, 15:11
Anybody tried this?

http://www.letstorquebhp.com/calculator.asp

I would say that they are quite accurate.

With an S13 running 250bhp, weighing 1250kg you get:

Power at Flywheel (BHP) : 250
Weight without Driver (KG) : 1250
Power to Weight Ratio (BHP Per Ton) : 203.21
0 - 60 (Secs) : 5.43
0 - 100 (Secs) : 13.51
60 - 100 (Secs) : 8.08
Quarter Mile (Secs) : 13.78
Terminal Speed (MPH) : 100.99
Drag Strip Quarter Mile (Secs) : 13.68
Drag Strip Terminal Speed (MPH) : 102.15

Sounds about right?

EDIT - Obviously these figures are based upon the driver doing a perfect launch, perfect gear changes.. etc.
Bodleywillneverwin
21-04-2006, 20:31
I would say that they are quite accurate.

With an S13 running 250bhp, weighing 1250kg you get:

Power at Flywheel (BHP) : 250
Weight without Driver (KG) : 1250
Power to Weight Ratio (BHP Per Ton) : 203.21
0 - 60 (Secs) : 5.43
0 - 100 (Secs) : 13.51
60 - 100 (Secs) : 8.08
Quarter Mile (Secs) : 13.78
Terminal Speed (MPH) : 100.99
Drag Strip Quarter Mile (Secs) : 13.68
Drag Strip Terminal Speed (MPH) : 102.15

Sounds about right?

EDIT - Obviously these figures are based upon the driver doing a perfect launch, perfect gear changes.. etc.


Sounds spot on to me.

13.68 @ 102.15 with 250bhp drag racing. I would have thought that 13.68 is the absolute limit though.

I got 13.5 @ 105.54 with 260/270 (stage 2 s13). I think that I was at the very limits of my cars capabilities there with standard wheels and setup etc. I reckon I could have just scraped a 13.4 with a slightly better launch.

:)

:)
arry
21-04-2006, 20:33
:rolleyes:
Pugger
21-04-2006, 22:51
Power at Flywheel (BHP) : 1000
Weight without Driver (KG) : 1000
Power to Weight Ratio (BHP Per Ton) : 1016.05
0 - 60 (Secs) : 2.70
0 - 100 (Secs) : 4.36
60 - 100 (Secs) : 1.66
Quarter Mile (Secs) : 9.73
Terminal Speed (MPH) : 156.73
Drag Strip Quarter Mile (Secs) : 9.63
Drag Strip Terminal Speed (MPH) : 158.55

Is it just me reading wrong (No Doubt lol!) but does the cars drag strip speed out match its terminal??? just playing with numbers :p
Escy
21-04-2006, 23:31
Power at Flywheel (BHP) : 297
Weight without Driver (KG) : 1250
Power to Weight Ratio (BHP Per Ton) : 241.41
0 - 60 (Secs) : 4.75
0 - 100 (Secs) : 11.30
60 - 100 (Secs) : 6.56
Quarter Mile (Secs) : 13.05
Terminal Speed (MPH) : 107.44
Drag Strip Quarter Mile (Secs) : 12.95
Drag Strip Terminal Speed (MPH) : 108.67

I can't wait to try :nod:
Trickle
22-04-2006, 19:57
Is it just me reading wrong (No Doubt lol!) but does the cars drag strip speed out match its terminal??? just playing with numbers :p
They rekon there is a difference in grip on drag strips vs normal road.
Roger_Sausage
23-04-2006, 23:48
It's way out. I entered the figures for our drag car and it gave a 8.16 1/4 mile time and a 2.68 0-60. We've ran a 7.701 and a 0.9 second 0-60 time.

http://i.pbase.com/o4/69/341069/1/58781209.IMG_6109.jpg
Bodley 180sx_barney
25-04-2006, 20:27
It's way out. I entered the figures for our drag car and it gave a 8.16 1/4 mile time and a 2.68 0-60. We've ran a 7.701 and a 0.9 second 0-60 time.

http://i.pbase.com/o4/69/341069/1/58781209.IMG_6109.jpg
it aint that far out mate.
arry
26-04-2006, 09:36
8.6 to a 7.71 - that is waaaaay out
def
26-04-2006, 14:34
tyre factor?
Robbie P
26-04-2006, 15:06
It's way out. I entered the figures for our drag car and it gave a 8.16 1/4 mile time and a 2.68 0-60. We've ran a 7.701 and a 0.9 second 0-60 time.



it seems that the quickest 0-60 time it throws out is 2.68 secs for some reason! :eek:
Roger_Sausage
26-04-2006, 15:19
it aint that far out mate.

5 tenths on the drag strip is a country mile when you dip down towards the 7 second zone.....to go from an 8.1 to a 7.6 can take anywhere from an additional 350-500bhp, or a 500lb weight reduction.

It's way out!:)
ian_t
27-04-2006, 23:46
instead of typing in flywheel HP type in wheel HP (americans lol) and add 100Kg of lard on and the calculator comes bang on for what i would expect when I get drag tyres.
damson devil
02-05-2006, 10:12
i entered my details and it came out just a little under the times i'm achieving.. pretty accurate i'd say. although i did enter my stripped out weight which i have not had timed yet..
testpilot
02-05-2006, 10:26
I put in what I am guessing is my cars power and it is about 0.5 secs out on the times I am getting.

I would say it seems not that bad as I have had pretty bad launches on the runs I've tried and with better launch think I could achieve them times.