Dirtbag Duster
Engine
Every Mopar guy's favorite - the engine.
I was going o build my 340 myself, but was talked into having the race shop build it. Good decision. If I had done it, there's no way the engine would run as well as it does.
The specs, for those who need them:
The 340 got bored .030
The crank was ground.
SRP forged pistons
Eagle H beam rods
Edelbrock heads
Edelbrock RPM air gap dual plane intake
Milodon oil pan
MSD distributor
Comp Cams Pro Magnum rockers
Compression ratio is 10:1 because I wanted the engine to run on pump gas, with no blending.
The cam is a hydraulic roller with .530 lift and 230 degrees at .050 duration.
The dyno produces a chart of numbers, not a graph. So I made my own in Excel.
On race gas, it made 465HP at 6000RPM and 466 lb ft torque at 4400RPM. 38 degrees advance. Yow! Power dropped when we backed off to 36 degrees advance, so back to 38. On pump gas, 458HP at 6000RPM and 462 lb ft torque at 4300RPM. Ran fine on pump gas at 38 degrees advance. The engine builder was pleasantly surprised that the pump gas number was so close to the race gas number.
Engine
Every Mopar guy's favorite - the engine.
I was going o build my 340 myself, but was talked into having the race shop build it. Good decision. If I had done it, there's no way the engine would run as well as it does.
The specs, for those who need them:
The 340 got bored .030
The crank was ground.
SRP forged pistons
Eagle H beam rods
Edelbrock heads
Edelbrock RPM air gap dual plane intake
Milodon oil pan
MSD distributor
Comp Cams Pro Magnum rockers
Compression ratio is 10:1 because I wanted the engine to run on pump gas, with no blending.
The cam is a hydraulic roller with .530 lift and 230 degrees at .050 duration.
The dyno produces a chart of numbers, not a graph. So I made my own in Excel.
On race gas, it made 465HP at 6000RPM and 466 lb ft torque at 4400RPM. 38 degrees advance. Yow! Power dropped when we backed off to 36 degrees advance, so back to 38. On pump gas, 458HP at 6000RPM and 462 lb ft torque at 4300RPM. Ran fine on pump gas at 38 degrees advance. The engine builder was pleasantly surprised that the pump gas number was so close to the race gas number.