Over the years we have all seen our fair share of products claiming to give horsepower boosts, only to fall flat. Many of these products cost hundreds, if not thousands of dollars, and the percentage of gain is minimal. We recently tested Blue Lightning spark plugs in a 96 inch S&S motor (Evo-style) motor on a Factory Pro dynamometer at Peak Performance Motorcycles in Simi Valley, California.
We're happy to report that this product works, delivering additional horsepower and torque for a low cost ($12.50 per plug). The bike was not specially tuned, the bike was pulled straight off the floor and strapped to the dyno. The largest gain was at 3,000 rpm, which translates into the sweet spot rolling down the highway, which should translate into better gas mileage. We also conducted emissions test, and hydrocarbon emissions were reduced as well.
Danny Dinardo at Peak Performance 805-306-9705 can answer any questions about the testing.
928-639-3739
RPM | RN12YC (68 bhp) | RN12YC (72 ft lbs) | |
2500 | 22.76 | 47.78 | |
3000 | 34.04 | 59.77 | |
3500 | 46.34 | 69.62 | |
4000 | 55.06 | 72.28 | |
4500 | 60.90 | 71.16 | |
5000 | 64.39 | 67.57 | |
5500 | 66.44 | 63.67 | |
6000 | 68.28 | 59.77 | |
6500 | 67.46 | 54.55 | |
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RPM | BL142 (70 bhp) | BL142 (73 ft lbs) | HP Gain |
2500 | 23.11 | 48.47 | 1.5% |
3000 | 36.51 | 63.50 | 7.3% |
3500 | 47.86 | 71.68 | 3.3% |
4000 | 55.94 | 73.22 | 1.6% |
4500 | 61.46 | 71.68 | 0.9% |
5000 | 65.75 | 68.92 | 2.1% |
5500 | 67.18 | 64.22 | 1.1% |
6000 | 69.74 | 60.95 | 2.1% |
6500 | 67.80 | 54.81 | 0.5% |