Jim Smart
December 1, 2000

Dyno Run No. 1Dyno Run No. 2
Hedman Headers with National Parts Depot's Turbo 2-1/4-inch Exhaust SystemAccelerator pump rod adjustment for a stronger shot
RPMPowerTorqueRPMPowerTorque
2,40095.3208.62,40088.8194.3
2,500101.9214.02,50093.0195.5
2,600106.5215.12,600107.8217.7
2,700110.7215.42,700113.4220.6
2,800114.2214.32,800117.6220.5
2,900117.8213.32,900120.9218.9
3,000121.0211.93,000124.2217.5
3,100124.2210.43,100127.8216.5
3,200126.6207.93,200130.5214.1
3,300129.7206.43,300133.3212.2
3,400132.6204.93,400136.5210.8
3,500135.0202.53,500138.8208.4
3,600137.5200.53,600141.2206.0
3,700140.5199.43,700144.0204.3
3,800142.4196.83,800144.9200.3
3,900144.1194.13,900147.4198.4
4,000145.5191.24,000148.4194.9
4,100147.0188.34,100150.3192.5
4,200149.0186.34,200151.2189.1
4,300149.1182.24,300152.0185.6
4,400150.4179.54,400152.9182.6
4,500150.8176.04,500153.1178.7
4,600149.6170.94,600152.2173.8
4,700149.2166.74,700152.1169.0

Dyno Run No. 3Dyno Run No. 4
Metering rod spring change (yellow to pink spring--softer)Metering rod spring change (pink to silver--softer yet)
RPMPowerTorqueRPMPowerTorque
2,40091.5200.22,40097.3212.8
2,50088.3185.52,500106.4223.6
2,600110.3222.72,600110.4223.0
2,700116.6226.82,700115.5224.7
2,800120.4225.92,800119.5224.2
2,900124.3225.02,900123.0222.7
3,000127.6223.43,000126.5221.4
3,100131.1222.03,100129.7219.8
3,200134.1220.13,200132.9218.1
3,300137.0218.03,300135.8216.1
3,400139.6215.73,400138.7214.3
3,500142.3213.63,500141.6212.4
3,600145.1211.73,600144.3210.6
3,700148.0210.03,700147.3209.1
3,800150.0207.43,800149.5206.6
3,900152.1204.83,900151.7204.3
4,000154.1202.44,000153.1201.0
4,100155.2198.84,100154.6198.0
4,200156.4195.54,200155.8194.9
4,300157.3192.14,300156.1190.7
4,400158.1188.74,400157.2187.6
4,500157.6183.94,500158.5185.0
4,600156.4178.54,600158.4174.7
4,700155.6173.84,700156.3174.7

Dyno Run No. 5
With open headers
RPMPowerTorque
2,40096.7211.6
2,500104.7219.9
2,600110.0222.2
2,700113.7221.3
2,800117.5220.4
2,900121.6220.3
3,000125.2219.3
3,100128.8218.3
3,200132.6217.6
3,300136.0216.4
3,400139.7215.7
3,500142.9214.4
3,600147.0214.5
3,700150.2213.3
3,800153.1211.5
3,900155.5209.4
4,000157.9207.4
4,100160.7205.9
4,200162.0202.6
4,300163.4199.6
4,400165.1197.1
4,500165.5193.2
4,600164.4187.7
4,700163.8177.2

Photo Gallery

View Photo Gallery