FRM

Why Brake Mean Effective Pressure (BMEP) is important:
http://www.tsrsoftware.com/bmep.htm

BMEP is a measure of the quality of an engine

FRM

Good Engine Design


Acura NSX V-6: (290 * 13000) / (3.179 * 7100) = 167 psi

Porsche 911 Flat-6: (315 * 13000) / (3.596 * 6800) = 167 psi

Honda Accord V-6: (240 * 13000) / (2.997 * 6250) = 167 psi

Lamborghini Gallardo V-10: (493 * 13000) / (4.961 * 7800) = 166 psi

Subaru Outback 3.0R Flat-6: (250 * 13000) / (3.0 * 6600) = 164 psi

Porsche Cayenne V-8: (340 * 13000) / (4.511 * 6000) = 163 psi

Rolls-Royce Phantom (BMW) V-12: (453 * 13000) / (6.749 * 5350) = 163 psi

Lamborghini Murcielago V-12: (580 * 13000) / (6.192 * 7500) = 162 psi

Acura TSX Inline-4: (200 * 13000) / (2.354 * 6800) = 162 psi

Lexus GS430/SC430 V-8: (300 * 13000) / (4.293 * 5600) = 162 psi

Infiniti G35 Sedan V-6: (260 * 13000) / (3.498 * 6000) = 161 psi

Lexus IS300 Inline-6: (215 * 13000) / (2.997 * 5800) = 161 psi

Honda Civic Si Inline-4: (160 * 13000) / (1.998 * 6500) = 160 psi

Audi TT 3.2 V-6: (247 * 13000) / (3.189 * 6300) = 160 psi

Mitsubishi Eclipse GTS V-6: (210 * 13000) / (2.972 * 5750) = 160 psi

FRM

Average Engine Design


Ford SVT Focus Inline-4: (170 * 13000) / (1.988 * 7000) = 159 psi

Audi A8L V-8: (330 * 13000) / (4.172 * 6500) = 158 psi

Toyota Camry/Solara V-6: (225 * 13000) / (3.311 * 5600) = 158 psi

BMW M5 V-8: (394 * 13000) / (4.941 * 6600) = 157 psi

BMW 745i V-8: (325 * 13000) / (4.398 * 6100) = 157 psi

Subaru Impreza 2.5 RS Flat-4: (165 * 13000) / (2.457 * 5600) = 156 psi

Aston Martin Vanquish V-12: (460 * 13000) / (5.925 * 6500) = 155 psi

Chevy Corvette C5 Z06 OHV V-8: (405 * 13000) / (5.665 * 6000) = 155 psi

Infiniti M45/Q45 V-8: (340 * 13000) / (4.494 * 6400) = 154 psi

Mitsubishi Lancer Ralliart Inline-4: (162 * 13000) / (2.378 * 5750) = 154 psi

Mazda 6s V-6: (220 * 13000) / (2.967 * 6300) = 153 psi

Chrysler Crossfire (Mercedes) V-6: (215 * 13000) / (3.199 * 5700) = 153 psi

Audi S4 V-8: (340 * 13000) / (4.163 * 7000) = 152 psi

Nissan Sentra SE-R Spec V Inline-4: (175 * 13000) / (2.488 * 6000) = 152 psi

Jaguar S-type/XJ8/XK8 V-8: (294 * 13000) / (4.196 * 6000) = 152 psi

VW Phaeton W-12: (420 * 13000) / (5.998 * 6000) = 152 psi

Mercedes CLK55 AMG V-8: (362 * 13000) / (5.439 * 5750) = 151 psi

VW GTI VR6 V-6: (200 * 13000) / (2.792 * 6200) = 150 psi

Cadillac CTS V-6: (255 * 13000) / (3.564 * 6200) = 150 psi

FRM

Poor Engine Design


Hyundai Tiburon GT V-6: (181 * 13000) / (2.657 * 6000) = 148 psi

Jaguar X-type 3.0 V-6: (227 * 13000) / (2.967 * 6800) = 146 psi

VW Passat W-8: (270 * 13000) / (3.998 * 6000) = 146 psi

Ford Mustang Mach 1 V-8: (310 * 13000) / (4.605 * 6000) = 146 psi

Chevy Corvette C6 OHV V-8: (400 * 13000) / (5.970 * 6000) = 145 psi

Mazda Miata Inline-4: (142 * 13000) / (1.839 * 7000) = 143 psi

Chevy Corvette C5 OHV V-8: (350 * 13000) / (5.665 * 5600) = 143 psi

Mazda 3 Inline-4: (160 * 13000) / (2.261 * 6500) = 142 psi

Cadillac XLR/SRX V-8: (320 * 13000) / (4.565 * 6400) = 142 psi

Mercedes CLK500/E500/SL500 V-8: (302 * 13000) / (4.966 * 5600) = 141 psi

Dodge Viper SRT-10 OHV V-10: (500 * 13000) / (8.285 * 5600) = 140 psi

steve c

A useless statistic. All the rice-boy math in the world won't change the fact that a Z06 with a pushrod V8 is the quicker car -- and get's better gas mileage too.

FRM

So

steve c

And an old LS1 is capable of 450 rear wheel with just intake/exhaust and a cam. Such a "poor design." LOL.

-Steve (waiting patiently for someone to write, "AMERICAN V8 IS CRAP IF V8 HAVES VTEC IT MAKES 900HP!!! AND BE FASTEST MOTOR IN WORLDS!!!!)

J.T

AMERICAN V8 IS CRAP IF V8 HAVES VTEC IT MAKES 900HP!!! AND BE FASTEST MOTOR IN WORLDS!!!!

just had to do it.

anyway, have to agree with you, to me it's just another useless meaningless statistic.

cfusionpm

so according to that, the viper SRT-10 engine is the single worst engine of all?


......... BRILLIANT!!




i agree; totally useless stat.

rockville

Actually, this is only partly correct.
First, it is way to simplistic to judge an engine solely on one criteria. If we were to judge based on say engine weight alone my lawn mower kicks S2000 butt. After all I can lift my 5hp mower and engine over my head. Well the Honda does have better power to weight