Power to weight - performance calculator

Yeah, yeah, you've all seen it before, put plug the numbers in again and see what it spits out.

My Golf is so low powered and heavy that it falls off the bottom of the chart, so I added some power and took some weight off. ( added 3bhp, took off 40kg)

The numbers actually seem quite accurate. Golf Ragtop - as slow as a week in the jail. Zzzzzzzzzz......

Power at Flywheel (BHP) : 104 Weight without Driver (KG) : 1110 Power to Weight Ratio (BHP Per Ton) : 95.20 0 - 60 (Secs) : 10.83 0 - 100 (Secs) : 36.93 60 - 100 (Secs) : 26.10 Quarter Mile (Secs) : 19.32 Terminal Speed (MPH) : 72.34 Drag Strip Quarter Mile (Secs) : 19.12 Drag Strip Terminal Speed (MPH) : 73.53

Then I put the numbers in for the Sylva - these are much more accurate. Very accurate actually. Woohoo !!

Power at Flywheel (BHP) : 137 Weight without Driver (KG) : 550 Power to Weight Ratio (BHP Per Ton) : 253.09 0 - 60 (Secs) : 4.58 0 - 100 (Secs) : 12.38 60 - 100 (Secs) : 7.80 Quarter Mile (Secs) : 13.05 Terminal Speed (MPH) : 102.65 Drag Strip Quarter Mile (Secs) : 12.95 Drag Strip Terminal Speed (MPH) : 103.89

In time honoured fashion, your turn.

Reply to
Bob Sherunckle
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Reply to
Bob Sherunckle

Comes out a bit fast for the V8 sierra with and without nitrous. Wont let me enter a 290bhp turbo bike... But comes out slow for a stock GSXR1100W and a 750 WP Suzuki compared to measured figures. And here I have to double weight and power or it wont let me enter...

Reply to
Burgerman

Ibiza

Power at Flywheel (BHP) : 170 Weight without Driver (KG) : 1218 Power to Weight Ratio (BHP Per Ton) : 141.81

0 - 60 (Secs) : 7.52 0 - 100 (Secs) : 20.49 60 - 100 (Secs) : 12.97 Quarter Mile (Secs) : 15.95 Terminal Speed (MPH) : 88.23 Drag Strip Quarter Mile (Secs) : 15.75 Drag Strip Terminal Speed (MPH) : 89.74

Recorded time: 15.505 @ 90.57mph

Polo (still being built so the weight could go up):

Power at Flywheel (BHP) : 270 Weight without Driver (KG) : 940 Power to Weight Ratio (BHP Per Ton) : 291.85

0 - 60 (Secs) : 4.16 0 - 100 (Secs) : 10.15 60 - 100 (Secs) : 5.99 Quarter Mile (Secs) : 12.49 Terminal Speed (MPH) : 110.91 Drag Strip Quarter Mile (Secs) : 12.39 Drag Strip Terminal Speed (MPH) : 112.21
Reply to
Depresion

"Burgerman" gurgled happily, sounding much like they were saying:

It'll only let me enter one of the five cars, and neither of the two bikes...

Bit crap, really.

Reply to
Adrian

175.86
Reply to
Elder

BMW 325i Touring

Power at Flywheel (BHP) : 168 Weight without Driver (KG) : 1270 Power to Weight Ratio (BHP Per Ton) : 134.41

0 - 60 (Secs) : 7.78 0 - 100 (Secs) : 22.41 60 - 100 (Secs) : 14.63 Quarter Mile (Secs) : 16.21 Terminal Speed (MPH) : 85.04 Drag Strip Quarter Mile (Secs) : 16.11 Drag Strip Terminal Speed (MPH) : 86.02

Hmm, not wonderful.

Range Rover Turbo

Power at Flywheel (BHP) : 300 Weight without Driver (KG) : 1975 Power to Weight Ratio (BHP Per Ton) : 154.34

0 - 60 (Secs) : 7.04 0 - 100 (Secs) : 19.32 60 - 100 (Secs) : 12.28 Quarter Mile (Secs) : 15.74 Terminal Speed (MPH) : 90.26 Drag Strip Quarter Mile (Secs) : 15.34 Drag Strip Terminal Speed (MPH) : 92.81

I don't believe that, not in the least, well, not when it comes to the Rangie anyway. The BMW is probably reasonably accurate but I'm not sure it's that light.

Reply to
Pete M

Power at Flywheel (BHP) : 160 Weight without Driver (KG) : 1400 Power to Weight Ratio (BHP Per Ton) : 116.12

0 - 60 (Secs) : 8.90 0 - 100 (Secs) : 27.23 60 - 100 (Secs) : 18.33 Quarter Mile (Secs) : 17.34 Terminal Speed (MPH) : 79.80 Drag Strip Quarter Mile (Secs) : 17.24 Drag Strip Terminal Speed (MPH) : 80.72

My poor old barge is a bit slow :(

Reply to
Carl Gibbs

Power at Flywheel (BHP) : 146 Weight without Driver (KG) : 1046 Power to Weight Ratio (BHP Per Ton) : 141.82

0 - 60 (Secs) : 7.41 0 - 100 (Secs) : 21.41 60 - 100 (Secs) : 14.00 Quarter Mile (Secs) : 15.86 Terminal Speed (MPH) : 86.07 Drag Strip Quarter Mile (Secs) : 15.76 Drag Strip Terminal Speed (MPH) : 87.06

The 0-60 is about right as far as the manufacturers figures go I think.

I've never measured any of these in my own car, but I did re-paint my wiper arms satin black today.

Reply to
Douglas Payne

Xantia Errr, computer says no.

Locost Power at Flywheel (BHP) : 115 Weight without Driver (KG) : 570[1] Power to Weight Ratio (BHP Per Ton) : 204.99

0 - 60 (Secs) : 5.39 0 - 100 (Secs) : 14.96 60 - 100 (Secs) : 9.57 Quarter Mile (Secs) : 13.88 Terminal Speed (MPH) : 96.31 Drag Strip Quarter Mile (Secs) : 13.78 Drag Strip Terminal Speed (MPH) : 97.46

Seems a bit optimistic TBH :)

[1] Was 620kgs wet with driver at SVA, so minus 80kgs for the driver, but it now has 5-speed 'box and zetec so add 50kgs.
Reply to
Tony (UncleFista)

Is *everybody* uber-detailing this weekend or what??

I'm gonna have to go and wipe the bird crap off my sunroof at this rate.

Reply to
PCPaul

What motor?

Reply to
Burgerman

1.8 Zetec on a type9, I'm just guessing the bhp :) it's a stock 1.8 on CBR600 carbs soo, what do you reckon ?
Reply to
Tony (UncleFista)

A bit less I would have though.

But without a dyno who knows.

Do the figures backwards until it matches the real standing quarter then you should have a rough idea?

It wont be very accurate though because I have a bunch of real figures here (standing quarters@mph from long marston, pod, york, and dyno figures) for a bunch of vehicles I ran over the years. Some are about right. The rest are are quite fast or really slow! It doesent seem to allow for traction (lack of) other than front/rear drive, or differences in drag etc. Or the fact that you cant use full throttle for the first 1/8th on some really fast stuff... Seems ok on regular shaped relatively low powered cars.

Reply to
Burgerman

Bugger, looks like I was bragging now, I prefer to look clueless :)

I'm looking for a bit of software for WindowsCE (my satnav) that measures quarter-mile, 0-60 etc. called "MoreRevs" or summat, or some other software if anyone knows of any ? I'm not trying to do a 0-60 dash with a stopwatch in my hand.

Never thought of that, it spins the wheels pretty easily in the lower gears, so in Real Life it's bound to be a fair bit slower...

Anyway, it's all academic at the moment, needs fixing. ;(

Reply to
Tony (UncleFista)

Will it do 60 in 2nd? If not there is a 2nd gear change to take into account.

Reply to
Peter Hill

200SX RS13U Power at Flywheel (BHP) : 169 Weight without Driver (KG) : 1190 Power to Weight Ratio (BHP Per Ton) : 144.30 0 - 60 (Secs) : 7.29 0 - 100 (Secs) : 20.56 60 - 100 (Secs) : 13.27 Quarter Mile (Secs) : 15.72 Terminal Speed (MPH) : 87.44 Drag Strip Quarter Mile (Secs) : 15.62 Drag Strip Terminal Speed (MPH) : 88.45 Brochure says 0-60mph 7.2sec but some car mag tested at 6.9sec.

but I've got about +10% thanks to a 3" drainpipe and +2psi. Power at Flywheel (BHP) : 185 Weight without Driver (KG) : 1190 Power to Weight Ratio (BHP Per Ton) : 157.96

0 - 60 (Secs) : 6.73 0 - 100 (Secs) : 18.30 60 - 100 (Secs) : 11.58 Quarter Mile (Secs) : 15.14 Terminal Speed (MPH) : 90.95 Drag Strip Quarter Mile (Secs) : 15.04 Drag Strip Terminal Speed (MPH) : 91.99

Stage 1 is 3" drainpipe, 1bar boost, chip, fuel pump. Power at Flywheel (BHP) : 210 Weight without Driver (KG) : 1190 Power to Weight Ratio (BHP Per Ton) : 179.30

0 - 60 (Secs) : 6.03 0 - 100 (Secs) : 15.70 60 - 100 (Secs) : 9.67 Quarter Mile (Secs) : 14.42 Terminal Speed (MPH) : 95.82 Drag Strip Quarter Mile (Secs) : 14.32 Drag Strip Terminal Speed (MPH) : 96.92

Stage 2+ is T28 turbo + FMIC Power at Flywheel (BHP) : 250 Weight without Driver (KG) : 1190 Power to Weight Ratio (BHP Per Ton) : 213.46

0 - 60 (Secs) : 5.22 0 - 100 (Secs) : 12.94 60 - 100 (Secs) : 7.72 Quarter Mile (Secs) : 13.57 Terminal Speed (MPH) : 102.39 Drag Strip Quarter Mile (Secs) : 13.47 Drag Strip Terminal Speed (MPH) : 103.57

Stage 3 is Z32 AFM and 444cc/min injectors, still stock internals Power at Flywheel (BHP) : 300 Weight without Driver (KG) : 1190 Power to Weight Ratio (BHP Per Ton) : 256.15

0 - 60 (Secs) : 4.54 0 - 100 (Secs) : 10.80 60 - 100 (Secs) : 6.26 Quarter Mile (Secs) : 12.84 Terminal Speed (MPH) : 109.04 Drag Strip Quarter Mile (Secs) : 12.74 Drag Strip Terminal Speed (MPH) : 110.30

Good ones with forged rods and pistons, vernier cam sprockets, cams, tube mainfolds, huge turbo etc hit 550ishbhp. Stripped with cage under

1100Kg is possible (one person has a 1000Kg target - plastic windows, lots of carbon). Power at Flywheel (BHP) : 550 Weight without Driver (KG) : 1100 Power to Weight Ratio (BHP Per Ton) : 508.03 0 - 60 (Secs) : 3.24 0 - 100 (Secs) : 6.69 60 - 100 (Secs) : 3.46 Quarter Mile (Secs) : 11.29 Terminal Speed (MPH) : 129.85 Drag Strip Quarter Mile (Secs) : 11.19 Drag Strip Terminal Speed (MPH) : 131.33

Bigtone is running 720bhp (think it's stroked to 2L) 10.85 @ 136mph, should get better. Power at Flywheel (BHP) : 720 Weight without Driver (KG) : 1100 Power to Weight Ratio (BHP Per Ton) : 665.05

0 - 60 (Secs) : 2.85 0 - 100 (Secs) : 5.49 60 - 100 (Secs) : 2.64 Quarter Mile (Secs) : 10.70 Terminal Speed (MPH) : 141.04 Drag Strip Quarter Mile (Secs) : 10.60 Drag Strip Terminal Speed (MPH) : 142.64
Reply to
Peter Hill

The 306 (45 kg taken off from somewhere lol)

Power at Flywheel (BHP) : 95 Weight without Driver (KG) : 1015 Power to Weight Ratio (BHP Per Ton) : 95.10

0 - 60 (Secs) : 10.85 0 - 100 (Secs) : 37.36 60 - 100 (Secs) : 26.51 Quarter Mile (Secs) : 19.35 Terminal Speed (MPH) : 71.97 Drag Strip Quarter Mile (Secs) : 19.15 Drag Strip Terminal Speed (MPH) : 73.16
Reply to
Abo

Hmm, here is the Vectra:

Power at Flywheel (BHP) : 150 Weight without Driver (KG) : 1504 Power to Weight Ratio (BHP Per Ton) : 101.34

0 - 60 (Secs) : 10.17 0 - 100 (Secs) : 32.08 60 - 100 (Secs) : 21.91 Quarter Mile (Secs) : 18.62 Terminal Speed (MPH) : 76.19 Drag Strip Quarter Mile (Secs) : 18.42 Drag Strip Terminal Speed (MPH) : 77.43
Reply to
Abo

Probably not. It's a 4 speed auto, it likes to be in 3rd before it gets to 60..

Reply to
Pete M

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