My Nissan has about a 20 HP/Ft-lb difference between its peak torque & HP numbers, torque being higher. In looking at gear ratios, the two choices (the two easy choices) each have their merits for where I am shifting on track. The torque curve is moderatly flat, but where it crosses the HP numbers, the HP has already peaked.

The shorter one puts me into the crest of the HP curve, but the falling (or fallen) part of the torque curve. The taller option puts me into the rising part of the HP curve and the falling part of the torque curve, but still moderately high on it.

I have never read or heard a good description of the difference between torque & HP in driveability and lap times so I am not sure if I should utilize the higher torque or the better portion of the HP curve. Most people go on about HP and never say what the torque is, but I know from driving diesels torque does play a big part.

Curios what peoples thoughts or experiences are.

Matt