| Author | Message | ||
| Rusty Thompson (Rusty)
Registered Member Username: Rusty Post Number: 37 Registered: 6-2005 Posted From: 12.191.99.42 Rating: |
Unfortinatly I don't know a lot about how the 6-71 works, but I do know that even though the supercharger is vital for its operation, it robs a lot of horse power. What I am wondering is what would happen if someone replaced the supercharger with a turbo charger. Just an inocent question that I would realy like an explanation to so no burning please. | ||
| Bob greenwood (Bob_greenwood)
Registered Member Username: Bob_greenwood Post Number: 25 Registered: 7-2006 Posted From: 63.233.85.222 Rating: |
it won't start. & the turbo doesn't work till it gets 800 rpm | ||
| David Hartley (Drdave)
Registered Member Username: Drdave Post Number: 659 Registered: 5-2005 Posted From: 67.78.176.54 Rating: |
It's not a supercharger.. It's called a Roots Blower and is necessary to push fresh air into the cylinders which pushes exhaust gases out through the exhaust valves. It also runs the fuel system and injector pump on detroits. A 2-Stroke is what is called a Scavenger cycle engine. No Intake valves just cylinder ports that the piston moves down to uncover, then the exhaust valves are opended, the air is pushed into the bottom of the cylinder which pushes the burnt fuel (exhaust) out the top of the cylinder. The exhaust valves close as the piston travels up where fuel is sprayed in ... you now know how it goes.... You can add a turbo before the roots blower but would need some serious internal engine modifications which include a lower compression ratio, different injectors and timing changes. | ||
| Tim Hoskinson (Tdh37514151)
Registered Member Username: Tdh37514151 Post Number: 175 Registered: 9-2004 Posted From: 4.253.125.2 Rating: |
Superchargers , blowers same thing start to make boost as soon as the engine is rotated due to being mechanically rotated. Turbos have a lag in the boost due to being drivin by expanding exhaust gases. A two cycle engine would not operate very well with this delay. The problems of driving the aux. drives can be delt with but not the lag problem. Turbos can be added to the intake of the blower and make it run cleaner and produce more hp. Modifications to engine depends on the tubo used. There are many variables involved with how the engine needs to be modified.Some used lower comppression pistons as mentioned others used a reduced gear ratio drive on the blower. Your better off to get a factory made turbo engine if you want to go that rout. Putting one together on your own will require very good info. on all the parts you wish to use. | ||
| Bob greenwood (Bob_greenwood)
Registered Member Username: Bob_greenwood Post Number: 28 Registered: 7-2006 Posted From: 63.233.6.253 Rating: N/A |
it's called a roots pump.we used them to pump blood in a beef processing plant. I agree with Tim, If you want something like that,you need to buy one from somebody that knows what goes where & why | ||
| David Hartley (Drdave)
Registered Member Username: Drdave Post Number: 662 Registered: 5-2005 Posted From: 67.78.176.54 Rating: N/A |
The now Famous 671 Superchargers used on custom cars and race engines is derived from a remanufactured Roots blower. The rotors are machined or replaced with closer tolerance rotors usually with a seal vane in the tip edges to provide a maximum seal as the vanes rotate. The end plates are also either replaced and or machined to handle a heavy duty bearing and pulley to drive them. Lot's of design mods. The pump a lot of air.... Septic Tank pump trucks that use a vacuum to pull stuff in use an industrial roots blower that creates a vacuum. Vactor trucks use both Vacuum and Pressure provided by root type blower/pumps. Our printing press equipment uses Roots and Vane pumps to make both pressure and vacuum at the same time. |
