Conclusion
Who is the undisputed champion of small-displacement, high-output engines? By just checking out the manufacturers ratings, the 2ZZ-GE engine has a clear advantage on horsepower output; 180 hp for the 2ZZ-GE and 170 for the B18C. The 2ZZ-GE engine also has a slight advantage with a torque rating of 133 lb-ft compared with 128 lb-ft. What better way to decide then to take it to the dyno? The two testers we used were a 2000 Celica GT-S with 5,000 miles on the odometer and a 1994 Acura GS-R with 62,000 miles on the odometer. The reason for the 1994 model GS-R and not the 2000 model GS-R was due to OBD-II. We have found out from extensive dyno tuning sessions with GS-Rs that the 2000 model GS-R produces far lower base numbers than the non-OBD-II GS-R.

In the dyno cell, testing clearly showed the GT-S producing considerably more overall peak power than the GS-R. But what surprised us was how the GS-R was able to produce substantially more power on the bottom-end (before 6400 rpm) than the GT-S. For all-out performance, we have to give the nod to the GT-S, but for overall usable horsepower, we pat the GS-R on the back.

Is there a new champion in the ring? Well, not really. Although the two engines have fought to a draw, we have to give the split decision to the GS-R, because of its unmatched aftermarket support. However, given some time to build a strong tuner following, we wouldn't be surprised to see the 2ZZ-GE taking the title in the near future.

TALE OF THE TAPE
Specifications 2ZZ-GE B18C
Cylinders & Arrangement 4-cylinder, In-line 4-cylinder, In-line
Valve Mechanism 16-valve DOHC Chain Drive 16-valve DOHC Belt Drive
Combustion Chamber Pentroof Type Pentroof Type
Displacement 1796cc (109.6 cu.in.) 1797cc (110 cu.in.)
Bore x Stroke 82.0mm x 85.0mm 81mm x 87.2mm
Compression Ratio 11.5:1 10.0:1
Max Ouput 180 horsepower (7600rpm) 170 horsepower (7600rpm)
Max Torque 133 lb-ft. (6800rpm) 128 lbs-ft. (6200rpm)
Redline 8000 rpm 8000 rpm