Power to weight ratio of your car?

1 Vipernet Race Car - OMS RA 409
2 Moorron MK INDY 357
3 mk1_salami Eunos Roadster / MX5 321
1 pcoltrane FF2000 310
2 Brycheiniog Sylva Fury 300
3 -Neil- Lotus Exige S 300
4 Muncher VX220 294
5 pwduncan Audi RS6 286
6 Dead Dog Zee Beetle 281
7 Darkman Alpina B5 280
8 TomO E55 272
9 Anim Celica GT 2005 265
10 Bear 200Sx 262
11 panthro BMW M3 256
12 MacRS4 BMW M3 256
13 Gayjin Evo 7 254
14 ScoobyDoo69 Impreza 250
15 DM Bentley Continental 248
16 Gibbo Porsche 911 247
17 TomO 200sx 245
18 Princey 6.0l V8 Monaro VXR 243
19 Housey B7 RS4 241
20 BigT Z4m roadster 234
21 beermonster M5 230
22 daveydave Z4M Coupe 226
23 Rich1988 S14a 223
24 Cymatty GT4 223
25 RenoRanes007 '85 Audi ur quattro Coupe Turbo 216
26 Paul_M Impreza WRX STI 215
27 MeEsH BaKkA Astra Vxr 214
28 Nathan Megane R26 213
29 Mucky_Pup Focus ST-3 5 Door 213
30 simulatorman BMW F10 550i 212
31 PMKeates BMW 535d 211
32 Foxtrot26 Leon cupra R 211
33 Vanilla 370z Roadster 208
34 _Ad_ Vauxhall Nova 2.0 16v 206
35 VinceB1 Porsche Boxster S 200
36 agw_01 Green 420 Turbo 195
37 andicole0 Mustang 194
38 Kei Saab 900 stage 3 193
39 The Running Man MR2 192
40 tsinc80697 350Z 191
41 McHaMmEr Impreza Turbo 2000 191
42 Dr House E92 335i 190
43 [FnG]magnolia Subaru Legacy GTB 190
44 spaz Megane R26.R 189
45 Sin_Chase S2000 188
46 PiKe S2000 188
47 Alibaba99 S1 Elise 111s 186
48 ThomP Mini Cooper 183
49 sovietspybob Blobeye Impreza STi 183
50 alexisonfire Clio 182 modified 178
51 LizardKing Mitsubishi GTO MR 177
52 Delboy Megane Renaultsport F1 230 R26 177
53 Sagalout Boxster 2.7 176
54 Rizo-UK Mk5 Astra Turbo 175
55 Dolph VW Passat R36 173
56 Nick1881 Integra track car 172
57 Ace Modder Impreza WRX 172
58 Hades Corrado VR6 171
59 Overlag Fiesta ST185 169
60 Confused Mitsubishi Legnum VR-4 167
61 MikeHiow Clio 182 166
62 mjt BMW Z3 3.0i Coupe 164
63 Alex_6n2 106 Gti 163
64 The Running Man Corrolla 156
65 Nick1881 Lexus IS300 155
66 Gaygle BMW 330i Sport 155
67 ThomP BMW 330ci 154
68 Marine Iguana Escort RS Turbo Cab 153
69 NathWraith MkIV Supra NA 151
70 Skeeter Clio 172 150
71 dwarf MR2 n/a* 150
72 DRZ S Class 150
73 CaptainFail! Renaultsport Clio 172 150
74 Jaap74 2008 Golf GTi 149
75 Duke Golf GTi MK5 148
76 Conscript MX5 NC 2.0 Sport (Soft top) 146
77 Alibaba99 Saab 9-5 Aero Estate 145
78 Berger Peugeot 306 Rallye 143
79 DRZ MX-5 140
80 agw_01 Red 420 Turbo 140
81 Pete19s '96 Megane Coupe 16v 137
82 nickrose Alfa Romeo Mito 155 137
83 Smokey McPot Clio Williams 136
84 mattyprice4004 ZT190 133
85 Vigoro MX-5 130
86 UKDTweak SLK 200 Kompressor 130
87 Bennie-Mac Toyota Celica Gen 7 127
88 mattyprice4004 ZS TD 124
89 Mud *Peugeot 206 GTi 122
90 Liampope Omega 3.0 122
91 cokecan72 VW Passat SEL 121
92 Skyboat Ford Puma 1.7 120
93 killer_uk MK5 Fiesta Zetec S (Modded) 120
94 Moorron RR classic V8 119
95 Hxc MX-5 119
96 Curio Toyota Camry Hybrid 119
97 EliotG Grande Punto Turbo 117
98 ZG002 Swift Sport 111
99 Vita Toyota Yaris T-Sport 109
100 ashrobbo Ford Fiesta Zetec s (59' Petrol) 109
101 Muffin` Mondeo STD 104
102 PhillyDee Rover Streetwise 103
103 Wayne~ Panda 100Hp* 100
104 Concorde Rules Mk1 Golf 100
105 Locky Vx zafira 1.8 97
106 Jonnycoupe Gen1 Honda Insight 95
107 Jokester Honda Civic 2.2 i-CTDi 94
108 Orange Peel Mondeo Titanium Sport 88
109 Gamefreak501 Spitfire 83
110 Vipernet Avensis D4D Estate 78
111 tsinc80697 Fiesta 75
112 ng93 mk2 Polo 73
113 ThomP Vauxhall Astra DTi LS 70
114 frozennova golf 1.3 65
115 MANFACE Mitsubishi Outlander Elegance 58
116 NathWraith VW Polo 1.2 50
117 R420LA6X2/4MNA Scania R440 10

Just added two members, but the list dropped by one. Can you post in here when you edit it?
 
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So how relevant is power/weight in real world driving? Is it mostly applicable at lower speeds?

I ask because i was watching the TG the other day where the McLaren F1 and Veyron race and the McLaren F1 had more power to weight, but still lost by quite a margin - however it got off the line quicker and stayed ahead until higher speeds.
 
Unless the gearing restricts you for example a caterham will have good power to weight figures but the top end of most is about 125mph, whereas cars with similar power to weight with better gearing might go on to top 155mph.

I would be interested in seeing the book top end figures for the different cars :)
 
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You mean power to weight is everything surely. For instance a 400 HP monaro wouldn't see which way a caterham r400 went up until speeds where the caterham succumbed to its un-aerodynamic shape and lack of gearing.
 
I guess it depends on how long a road we are talking :D

an r400 - 263bhp 506kg (according to parkers) so over 500bhp per ton, however it will only do 150 mph - other cars such as gibbos porsche for example have half the power to weight but more top end they arn't worlds apart (1 second) on 0-60 figures either but the porsche will top 180mph.
 
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I would assume if you had two identical cars, one with 450bhp and weighed 1500kg, and one with 300bhp and weighed 1000kg. The lighter car would pull a head for the first few gears, but once the heavier car with more power starts to get momentum it should catch up. Round a track though, the lighter car should win every time.
 
VinceB1 said:
other cars such as gibbos porsche for example have half the power to weight but more top end they arn't worlds apart (1 second) on 0-60 figures either but the porsche will top 180mph.
Click to expand...

Trust me they're worlds apart.

Lets say for instance they were both being naughty and racing down a motorway slip road. The R400 would be several car lengths in front of the 911 by the time they joined traffic.
 
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mk1_salami said:
Trust me they're worlds apart.

Lets say for instance they were both being naughty and racing down a motorway slip road. The R400 would be several car lengths in front of the 911 by the time they joined traffic.
Click to expand...

I don't doubt that but assuming a clear motorway how long before the porsche pulls ahead?
 
Weight matters at all times to acceleration as it affects the non-aero resistances. However, at higher speeds the aero resistances become so great the impact of weight on performance is relatively diminished.
VinceB1 said:
I don't doubt that but assuming a clear motorway how long before the porsche pulls ahead?
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You'd have to calculate it, really. Probably around 120 MPH-ish.
 
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Xsara VTS
167 bhp / 1190kg = 140bhp/ton

MR2 GT-Tbar
168 bhp / 1305kg = 129bhp/ton

Mainly due to gearing I think they seem a lot further apart than that, the Xsara feels a lot quicker.

Miss my old Saxo with approx 200bhp/ton :(
 
Maybe the 911 would be accelerating quicker at 120mph, but it still has to gain all the ground it lost on the way upto that figure. It's a silly argument and a bit irrelevant. It's a situation you'd never find yourself in.
 
mk1_salami said:
Maybe the 911 would be accelerating quicker at 120mph, but it still has to gain all the ground it lost on the way upto that figure. It's a silly argument and a bit irrelevant. It's a situation you'd never find yourself in.
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Oh yes I meant accelerating faster rather than be physically ahead. Christ knows when it'd overtake, that would take some proper calculating :p
 
Nissan Primera GT with SR20VE/SR16VE cams. 211BHP @ 1.23 tonne = 172bhp per tonne. N/A 105.5bhp/litre.

It does seem kinda pointless though.Surely we should be doing power at the wheels rather than at the fly. Im sure as hell a lot of the 4wd cars would drop down the list. Not to mention things like lightweight pulleys, flywheels etc effect this too.
 
meh seeing as bikes seemed to be banned as they make cars look too slow, I present......

Hyundai i10 1.0 Auto

67 BHP/TONNE


Interesting how low though most figures here are... it's why I've never been in a car that actually feels fast in a straight line (we're talking rip your face off fast)
 
mk1_salami said:
Maybe the 911 would be accelerating quicker at 120mph, but it still has to gain all the ground it lost on the way upto that figure. It's a silly argument and a bit irrelevant. It's a situation you'd never find yourself in.
Click to expand...

True.

I know this so let me explain:-

EVO X - 410BHP / 380Lb/ft / 1540kg (Manufacturers claimed weight) - 266BHP per tonne

911 C2S - 360BHP / 295Lb/Ft / 1456kg (True weight with fuel etc, manufacturer claims 1390kg) - 247BHP per tonne. (259BHP is use manufacturers claimed weight).


On a certain private airfield by a landmark the EVO was hitting circa 118-119mph GPS wheras the less powerful 911 is hitting 126-128mph GPS.

So the less powerful has the upperhand. The reason for this is more down to gearing and aero-dynamics.

The 911 is the quicker and sharper car, though the EVO X due to its turbo and very short gearing did have more aggressive mid-range, but the 911 is better at low revs and in the upper power band. :)
 
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