Nitrous
The bolt-on
An NOS Super Powershot carbureted plate nitrous system spraying a 125hp shot. $440
The mule
The Nova with an Edelbrock Victor Jr. intake manifold and a 750-cfm Mighty Demon carb.
Our take
Even a fairly mild motor can put up big numbers on the juice.
Before
Max torque: 361 lb-ft @ 3,900 rpmMax power: 335 hp @ 5,800 rpmAverage torque: 361 lb-ftAverage power: 274 hp
After
Max torque: 559 lb-ft @ 3,500 rpmMax power: 429 hp @ 5,200 rpmAverage torque: 463 lb-ftAverage power: 392 hp
Difference
+198 lb-ft+94 hp
Bonus Nitrous
The bolt-on
We couldn't resist the urge to place a bonus pull, especially after seeing the results. Check out what a 250hp shot from a Zex Perimeter Plate nitrous system for Dominator-style intake manifolds can do. $907
The mule
A 588ci big-block running 12.5:1 compression, Brodix rectangular-port heads, an Edelbrock Super Victor BBC EFI manifold, and FAST XFI fuel-injection with a High Flow 4500-style throttle body flowing 2,000 cfm. Power measured at the rear wheels.
Our take
It's a big engine taking a big nitrous shot, and it made big power.
Before
Max torque: 564 lb-ft @ 5,000 rpmMax power: 602 hp @ 6,000 rpmAverage torque: 429 lb-ftAverage power: 446 hp
After
Max torque: 797 lb-ft @ 5,300 rpmMax power: 813 hp @ 5,800 rpmAverage torque: 654 lb-ftAverage power: 675 hp
Difference
+233 lb-ft+211 hp