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Super?

Superchargers work great. They have a little more parasitic drag(draw a bit more HP than a turbo) for there output, but the throttle response is virtually instantanious. The 400HP HAMMERHEAD ski boat engine is a 6.5L supercharged engine, and it seems to have a good rep with ski boats.
 
IIRC there was a guy down in Australia(?) with a Duramax...

again...IIRC instead of running twin turbos he ran a combo of a supercharger and a turbo...that truck was insane...
 
Pepperidge said:
IIRC there was a guy down in Australia(?) with a Duramax...

again...IIRC instead of running twin turbos he ran a combo of a supercharger and a turbo...that truck was insane...
Click to expand...


But all this power, is it reliable?.......Twin turbo's and Superchargers and/or both........how do the weak spots hold up?.....Cracking Heads, broken Cranks, Head Gaskets,.....What about the notorious Bottom end?

Even with new/modded build techniques can we really think a 6.5 W/ a Super Charger and a turbo can be reliable?

Or is reliable just one of the things we dismiss when building a "Super" HP 6.5?
 
Detroit 2 stroke diesels were supercharged not for boost, but for scavenging. The blower was on the intake side and was gear driven. Said blower would force fresh air in, and exhaust gasses out the exhaust valves in the head. 2 Stroke Detroits had no intake valves. They had ports in the cylinder walls that fresh air would come through when the piston went below them, basically "opening" the ports up.

Without the blower a 2 stroke detroit will not run, because it has no intake stroke, it cannot pull air in. Air must be fed to it.

2 stroke Detroits coined the 6-71 or 8-71 blower name, you hear people using on hotrods. 6-71 and 8V-71 were Detroit 2 strokes. 6-71 is 6 cyl 71 cubic inches each, and 8v-71 is 8 cyl in a "V" configuration that are 71 cubes a piece.


A detroit with a blower was considered naturally aspirated. Even the turbo 2 stroke detroits had a blower, but boost was only provided by the turbo itself.
 
iamdave0887 said:
Detroit 2 stroke diesels were supercharged not for boost, but for scavenging. The blower was on the intake side and was gear driven. Said blower would force fresh air in, and exhaust gasses out the exhaust valves in the head. 2 Stroke Detroits had no intake valves. They had ports in the cylinder walls that fresh air would come through when the piston went below them, basically "opening" the ports up.

Without the blower a 2 stroke detroit will not run, because it has no intake stroke, it cannot pull air in. Air must be fed to it.

2 stroke Detroits coined the 6-71 or 8-71 blower name, you hear people using on hotrods. 6-71 and 8V-71 were Detroit 2 strokes. 6-71 is 6 cyl 71 cubic inches each, and 8v-71 is 8 cyl in a "V" configuration that are 71 cubes a piece.


A detroit with a blower was considered naturally aspirated. Even the turbo 2 stroke detroits had a blower, but boost was only provided by the turbo itself.
Click to expand...


Great info.....Thanks Dave!
 
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