yea...... torque = power, but we also are dealing with gear ratios here and RPM limits of each engine.

Use a simple rollout /speed calculator and we'll see the winner here.

With a 1.5 HP Nova Rossi 2 stroke- capable of 40K rpm, and a FINAL drive of 4.00:1, with 60mm tires, theoretical top speed would be= 70.275 mph.

Do the same math on a 3.0 HP 4 stroke capable of only 30K rpm and you get a top speed of 52.707 mph.

Horsepower matters, but the winner here is RPM and gearing.

check this site for a neat little top speed calculator- http://www.pbracing.com/info_rcgears.html.

Does it mention horsepower or torque?? No....

Need a math lesson?? just PM me........