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      06-10-2012, 09:08 PM   #498
GoingTooFast
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Drives: fat cars are still boats
Join Date: Jun 2007
Location: compensating a fat car with horsepower is like giving an alcoholic cocaine to sober him up.

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Three different engines with the same exact displacement (1998cc) and equal number of cylinders (four). Why is the Toyobaru's engine the only one with direct fuel injection and yet the worst of the three?

You could say that it's the most fuel-efficient of the three engines averaging 7.8L/100 km and while that is true the problem is it's not much different from the 8.2L/100 km achieved by the multi-point fuel injection (MPI) Renaultsport's engine if you consider that the Clio RS weights the same 1240 kg BUT has shorter gear ratios... and what about the performance?!

Let's compare the three cars equipped with each of those engines:
  1. Honda Type R FD2
  2. Subaru BRZ
  3. Renault Clio RS


Multiplying the differential ratio with the transmission ratio we have:

............. Type R (FD2)........... Clio RS............ BRZ
1st......... 16.55:1.................... 14.91:1........... 14.88:1
2nd......... 10.78:1.................... 9.34:1............. 8.98:1
3rd.......... 7.69:1..................... 6.74:1............. 6.31:1
4th.......... 5.82:1..................... 5.34:1............. 4.96:1
5th.......... 4.66:1..................... 4.31:1............. 4.10:1
6th.......... 3.74:1..................... 3.60:1............. 3.20:1
Redline..... 8600 rpm................. 7400 rpm.......... 7400 rpm
Torque.... 159 lb-ft................. 159 lb-ft.......... 151 lb-ft
Power....... 222 hp..................... 203 hp............ 200 hp
CR............ 11.7:1..................... 11.5:1............. 12.5:1
BoreXStroke 86x86 mm................ 82.7x93 mm..... 86x86 mm
Displac...... 1998 cc................... 1998 cc .......... 1998 cc
Weight...... 1270 kg.................... 1240 kg ......... 1239 kg
0-62 mph... 6.3 s........................ 6.9 s.............. 7.6 s
Max Speed. 241 km/h.................. 225 km/h......... 226 km/h



So I ask why in hell does the Toyobaru's engine have such a high compression ratio (12.5:1) if it can't make the most of it?! Poor engineering then?!

Last edited by GoingTooFast; 06-10-2012 at 09:16 PM.