Rocket Science for your Truck

00:00 the 5 in is very low back pressure even though we’re behind the emissions equipment there’s still back pressure there if I remove a pound behind the emissions equipment I get a pound in front of the emissions equipment if I remove a pound behind the turbine there’s a thing called expansion ratio

00:20 the pressure into the turbine versus the pressure out of the turbine if I reduce a pound coming out of the turban at full power I’m going to get 3 or 4 lbs at the turban Inlet that’s what’s called Drive pressure right so what I do here is multiply in Drive pressure reduction and if you drop

00:39 back pressure you unload the Piston coming up on the exhaust stroke and this is where the real difference comes in the whole idea was to make the tip literally scavenge the exhaust and I’m not guessing at this we instrument the living hell out of this stuff our monster exhaust liberates double digit horsepower