While this car had already been tested, it was tested using our old procedures that weren't as, shall we say, reliable as they could have been. So with the new testing in place and done many times over we came back and ran this car through the ringer again.
With a new set of NGK Iridium plugs installed at a .044" gap we attained 184 HP at 5100 rpm and 202 Ft-Lb at 4350 rpm. The car went from 30-65 mph in 7.84 seconds over a distance of 0.11 miles and completed our USO6 drivers trace using 1657.254 cc of fuel.
The Pulstar plugs were swapped in and gapped to .044" as per Honda's specs into the already hot 3.2L v6 and it pulled 192 HP at 5130 rpm and 211 Ft-Lb at 4350 rpm. The acceleration test yielded a 30-65 mph time of 7.22 seconds over 0.10 miles and consumed 1469.877 cc in the fuel economy trace.
The results of this testing give us 8 more horsepower (4.3%), 9 more pounds of torque (4.5%), a decrease in passing acceleration time of 0.62 seconds (7.9% quicker) and 187.377 cc less fuel consuption (11.3% better fuel economy).
If you look at the dyno chart you can see why this increase in fuel economy is so significant. We don't just increase the amount of power at the top-end, it happens throughout the power band. You can see that the 9 extra pounds of torque holds true from about 2900 rpm to around 4850 rpm, and because of this, when you are cruising on the freeway turning 3000 rpm or accelerating in town at 3000-4000 rpm you are right where the Pulstar plugs give you a great gain, this means you use less throttle to keep the same speed or acceleration curve as before and hence, save fuel.
www.pulstar.com
1 comment:
On 1995 Buick Ultra Supercharged, I had to reduce gap to 0.030 before the jerking and missing stopped. Will you be testing induction systems, or better yet develop a plug that works well with superchargers?
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