nisr227

A few of you may remember I have a site of theory acceleration figures, and have supplied many 1/4mile quotes on cars, well I've finally added the new performance calculator if you want to check it out for yourself now, on the basic site for the time being...

www.letstorquebhp.com

Check the list if you don't know the weight.
Just don't put really un-realistic figures in becuase I haven't yet set the parameters and they then tend to muck up.

Also, i still need the weights and bhp on the really early WRX cars before the Sti's, so I can add them to the list, can anyone help?

cheers

Steve

Kyl3cook

top site you have there

Gutmann pug

Thats pretty good fella.

Just tried my pug on your performance calculator and it came out pretty much spot on.

davyboy

About right I think.............

Power at Flywheel (BHP) 295
Weight without Driver (KG) 1400
Drive Type Rear Wheel Drive (RWD)
Power To Weight Ratio (BHP/Ton) 214.10
0-60mph (Secs) 5.21
0-100mph (Secs) 12.46
60-100mph (Secs) 7.25
Quarter Mile (Secs) 13.51 @ 104.13 MPH
Drag Quarter Mile (Secs) 13.41 @ 105.31 MPH

ScoobyJawa

Think its a bit out on my Skyline!

Power at Flywheel (BHP) 400
Weight without Driver (KG) 1540
Drive Type 4 Wheel Drive (4WD)
Power To Weight Ratio (BHP/Ton) 263.91
0-60mph (Secs) 3.95
0-100mph (Secs) 9.77
60-100mph (Secs) 5.82
Quarter Mile (Secs) 12.55 @ 113.31 MPH
Drag Quarter Mile (Secs) 12.15 @ 117.07 MPH

Although it would be nice to think I can do 0-60 in under 4 secs and 0-100 in less than 10 LOL!

nisr227

...i've seen similar powered skylines do close do those 1/4mile times, so can't see why not. I it says on the first pages, times are full abuse, most people have some sort of tlc and don't do snap gearchanges etc. Try putting in last years totb 1/4mile winner to see what it does

Andy M3

MY96 Volvo 850 T5

Power at Flywheel (BHP) 305
Weight without Driver (KG) 1600
Drive Type Front Wheel Drive (FWD)
Power To Weight Ratio (BHP/Ton) 193.69
0-60mph (Secs) 5.73 (about 0.5 out, not that quick)
0-100mph (Secs) 13.17 (correct on speedo)
60-100mph (Secs) 7.44 (correct on speedo)
Quarter Mile (Secs) 14.02 @ 103.21 MPH (14.9 is best to date, only been once though)
Drag Quarter Mile (Secs) 13.82 @ 105.02 MPH (???)

Not bad though

ScoobyJawa

Yeah - the 1/4 mile is probably not far out TBH, and the 0-100 isn't too bad

Its the 0-60 time mainly, not even with a full abuse start could my car get below 4! On a semi quick pull away the Powermeter measures 6 secs to 60. With a full bore, unsympathetic launch I'd expect very late 4's or 5.

Good effort gone into it though

Much better using my 1.9 205 though:

Power at Flywheel (BHP) 126
Weight without Driver (KG) 910
Drive Type Front Wheel Drive (FWD)
Power To Weight Ratio (BHP/Ton) 140.68
0-60mph (Secs) 7.62
0-100mph (Secs) 21.64
60-100mph (Secs) 14.03
Quarter Mile (Secs) 16.09 @ 86.21 MPH
Drag Quarter Mile (Secs) 15.89 @ 87.71 MPH

bigsinky

Power at Flywheel (BHP) 400
Weight without Driver (KG) 1250
Drive Type 4 Wheel Drive (4WD)
Power To Weight Ratio (BHP/Ton) 325.14
0-60mph (Secs) 3.39
0-100mph (Secs) 8.62
60-100mph (Secs) 5.23
Quarter Mile (Secs) 11.99 @ 117.93 MPH
Drag Quarter Mile (Secs) 11.59 @ 122.00 MPH


seems to be about right for my wrx. 395 bhp works out my best drag 1/4 exactly 12.17 seconds. 0-60 seems abit optomistic though. as does the 0-100. love to see the formulae for those figures.

cheers

sinky

bigsinky

@steve - my 96 wrx import weighs in at 1250kg

cong

hi i stuck99999999999 and came out with 253,723,411,908,149,000,000.00 @ 200,000,000,000,000,000.00 MPH i just hit warp 10

slim_boy_fat

Power at Flywheel (BHP) 330
Weight without Driver (KG) 1350
Drive Type Rear Wheel Drive (RWD)
Power To Weight Ratio (BHP/Ton) 248.37
0-60mph (Secs) 4.65
0-100mph (Secs) 10.79
60-100mph (Secs) 6.15
Quarter Mile (Secs) 12.92 @ 109.40 MPH
Drag Quarter Mile (Secs) 12.82 @ 110.65 MPH


Not sure i could ever get the 0-60 time but prob pretty close

Petem95

My stripped out 205 1.9 GTi Turbo Technics (which I nolonger own );

Power at Flywheel (BHP) 175
Weight without Driver (KG) 850
Drive Type Front Wheel Drive (FWD)
Power To Weight Ratio (BHP/Ton) 209.19
0-60mph (Secs) 5.55
0-100mph (Secs) 14.07
60-100mph (Secs) 8.52
Quarter Mile (Secs) 13.97 @ 99.65 MPH
Drag Quarter Mile (Secs) 13.77 @ 101.47 MPH

Sounds about right, maybe 0-100 is slightly on the optimistic side

ScoobyDoo555

good site there fella - put my MY99 with about 265Bhp ish in and it worked out pretty accurate (by all accounts!)

Nice one

Dan

Jeff Wiltshire

Gulp....this is pretty fast for a S4


Power at Flywheel (BHP)395
Weight without Driver (KG)1512
Drive Type4 Wheel Drive (4WD)
Power To Weight Ratio (BHP/Ton)265.44
0-60mph (Secs)3.93
0-100mph (Secs)9.77
60-100mph (Secs)5.84
Quarter Mile (Secs)12.54 @ 113.27 MPH
Drag Quarter Mile (Secs)12.14 @ 117.03 MPH

Not sure how much clutch would be left....

Rich D

iTrader: (12)

Surprisingly that seems to be about right for my past 3 cars!

Midmotorsteve

Very Good

My MR2

Power at Flywheel (BHP) 265 (15psi and a few other bits and bobs)
Weight without Driver (KG) 1250 (-20kg from stock, as hybrid car on a diet)
Drive Type Rear Wheel Drive (RWD)
Power To Weight Ratio (BHP/Ton) 215.40
0-60mph (Secs) 5.18
0-100mph (Secs) 12.69
60-100mph (Secs) 7.51
Quarter Mile (Secs) 13.52 @ 103.19 MPH
Drag Quarter Mile (Secs) 13.42 @ 104.38 MPH

carl

0-60 seems a little optimistic for my TVR:

Power at Flywheel (BHP) 360
Weight without Driver (KG) 1150
Drive Type Rear Wheel Drive (RWD)
Power To Weight Ratio (BHP/Ton) 318.07
0-60mph (Secs) 3.94
0-100mph (Secs) 9.03
60-100mph (Secs) 5.09
Quarter Mile (Secs) 12.18 @ 116.11 MPH
Drag Quarter Mile (Secs) 12.08 @ 117.46 MPH

turbotroll

Spot on !! The owner of a FWD 500bhp Saab did an 11.87 quarter mile in Sweden - which is exactly what your site calculates!

nisr227

again cheers for the comments.

I'm currently working on the best parameters (like min and max kg and bhp in each drivetrain) to keep it sensible, and stop people trying far too slow cars in, or silly bhp (over 600 in fwd, 1300 in 4wd etc)

I've also taken the comments on board about the odd heavy 4wd estate looking about half a second too fast on the 0-60. I'll have a look at the formulas to see if there's anything I can do, but i've got to be carefull becuase the 4wd rally reps arn't to far out, and some way near 1500kg.

cheers

STEVE

Midmotorsteve

how about a mid engine one too, as we're bound to get off the line quicker than a front engine rear drive, but not as quick as 4wd.

Ringpeas

Great site mate

The figure for the civic 1.8 VTi is wrong though. It has 167 bhp, not 150.

cheddar bob

The Focus RS should also be 212bhp not 230bhp.

Good stuff though

nisr227

Re the focus RS, its another car that, after research, most rolling roads say it produces closer to a real 230bhp (correct me if i'm wrong) hence why we have amended the figure to this.
Other cars with different figures are 106gti, coupe 20v Turbo, Skylines, and P1, all produce higher than there quoted manufaturer quotes. I am debating whether we amend these back, or have best of both worlds, and quote the car twice with, one with each figure.

cheddar bob

Ford tend to be quite conservative with their qoutes/figures so you're probably right, however I'd guess 90% of cars wouldn't make the exact manufacture quote on a rolling road.

carl

I can't really understand how you can do the calculations without Cd and frontal area, as these will be significant at 100mph and over 1/4 mile. Same goes for gear ratios and final drive. And tyre size, come to think of it.

I guess you're doing some weight transfer calculations, in which case (as somebody else suggested) you should offer FWD, RWD, 4WD together with front-engined, mid-engined and rear-engined (all possible combinations). With the engine location specified, you may need to make some assumptions about weight distribution.

hawkeye

"steven hawkins mode on"

Of course wuantum physicalities may also detangle the flux no-meter capabilities of the drag co efficient turd o meter"

"steven hawkins mode off"

damm good site lets not go too deep eh???

Cupramax

Revo remapped Leon Cupra R here....

Power at Flywheel (BHP) 275
Weight without Driver (KG) 1376
Drive Type Front Wheel Drive (FWD)
Power To Weight Ratio (BHP/Ton) 203.06
0-60mph (Secs) 5.56
0-100mph (Secs) 13.04
60-100mph (Secs) 7.48
Quarter Mile (Secs) 13.89 @ 103.19 MPH
Drag Quarter Mile (Secs) 13.69 @ 105.03 MPH

nisr227

Carl - I know what your saying, and gearing, cd values etc will def make a big impact, but as it says on the front screen of the site, I set out to design this with the minimum requirement of "easily obtainable" data, and cd values are just not available on 95% of cars, let alone the research required.

There are programs out there that put all types of physics into the equation (I know a friend who has even designed one in great detail). The whole point of my main site, once developed, is to compare all types of road cars, in many different ways, the calculator is just one option that isn't too far out on most cars, even without all the complications of difficult data. Its what I'm going to let the user do with the data that will be fun.

Besides, one of the options i'm also looking at is to let users change the performance data to exactly that achieved in road tests, before letting them up the bhp etc for different results too.

R1916v

0-60 is just over a second out on my 19.

It's been timed with an average of 7.2, the calc gives it an 8.6!

Power at Flywheel (BHP) 137
Weight without Driver (KG) 1140
Drive Type Front Wheel Drive (FWD)
Power To Weight Ratio (BHP/Ton) 122.10
0-60mph (Secs) 8.60
0-100mph (Secs) 25.36
60-100mph (Secs) 16.76
Quarter Mile (Secs) 17.07 @ 82.03 MPH
Drag Quarter Mile (Secs) 16.87 @ 83.41 MPH


I know it's not gonna be accurate for every car though!