flyboy
ArboristSite Operative
Not a chance. That cap is only rated for 100V. Spark plugs spark in the 20,000 to 50,000V range. If the coil is a 100:1 turns ratio....than you would need a 200 to 500V cap......but what about different turns ratios? You need more volts and LOW dissipation factor. I am pretty sure you need a low dissipation factor because there is high ripple current. Basically the amount of watts dissipated by the cap will be too high if it is not a low D and low equivalent series resistance cap. Guys here have been getting the Wima caps from mouser.com very cheap.