Tfes aa
Im burning charcoal in my car
Not
Not in the trunk in my backseats I'm worried too much CO will escape through the gaps in the trunk
There's a flap in the rear cabin that flips like a diode one way to vent the air pressure surge that occurs upon impact entering and slapping the doors shut. Otherwise like with older models the sure of pressure would increase cabin air density volume and make your ears pop.
One would have to seal all HVAC vents/ports and reduce cabin volume for maximal ppm volume concentration wether it's a bunch of beach balls, Styrofoam blocks, coolers anything to reduce internal cabin volume with solids to minimize cabin cm³ maximizing ppm concentrations.
The other option is to set the HVAC on recirculation mode and physically seal the external air vent flap as some sophisticated vehicles will detect anomalies and recalibrate.
For maximum CO ppm concentrations it's just a matter of the heaviest hydrocarbon fuel (additives) on a full tank. Disconnect/saw

the exhaust line before the catalytic converter conduit and hose into the cabin.
It's not possible with modern cars is a myth. Rip out the catalytic converter and you have pure same engine exhaust on the flow line.
You'd have to test the setup depending on the vehicle for ppm concentration and depletion time plot.
Easiest would be another method but not publicly disclosing. For informational purposes only. I do not endorse this and assume no responsibility for others actions.
May you find your peace whichever way you go. Don't act on impulse.
Tfes aa
Im burning charcoal in my car
Not
Not in the trunk in my backseats I'm worried too much CO will escape through the gaps in the trunk
There's a flap in the rear cabin that flips like a diode one way to vent the air pressure surge that occurs upon impact entering and slapping the doors shut. Otherwise like with older models the sure of pressure would increase cabin air density volume and make your ears pop.
One would have to seal all HVAC vents/ports and reduce cabin volume for maximal ppm volume concentration wether it's a bunch of beach balls, Styrofoam blocks, coolers anything to reduce internal cabin volume with solids to minimize cabin cm³ maximizing ppm concentrations.
The other option is to set the HVAC on recirculation mode and physically seal the external air vent flap as some sophisticated vehicles will detect anomalies and recalibrate.
For maximum CO ppm concentrations it's just a matter of the heaviest hydrocarbon fuel (additives) on a full tank. Disconnect/saw

the exhaust line before the catalytic converter conduit and hose into the cabin.
It's not possible with modern cars is a myth. Rip out the catalytic converter and you have pure same engine exhaust on the flow line.
You'd have to test the setup depending on the vehicle for ppm concentration and depletion time plot.
Easiest would be another method but not publicly disclosing. For informational purposes only. I do not endorse this and assume no responsibility for others actions.
May you find your peace whichever way you go. Don't act on impulse.
Tfes aa
Im burning charcoal in my car
Not
Not in the trunk in my backseats I'm worried too much CO will escape through the gaps in the trunk
There's a flap in the rear cabin that flips like a diode one way to vent the air pressure surge that occurs upon impact entering and slapping the doors shut. Otherwise like with older models the sure of pressure would increase cabin air density volume and make your ears pop.
One would have to seal all HVAC vents/ports and reduce cabin volume for maximal ppm volume concentration wether it's a bunch of beach balls, Styrofoam blocks, coolers anything to reduce internal cabin volume with solids to minimize cabin cm³ maximizing ppm concentrations.
The other option is to set the HVAC on recirculation mode and physically seal the external air vent flap as some sophisticated vehicles will detect anomalies and recalibrate.
For maximum CO ppm concentrations it's just a matter of the heaviest hydrocarbon fuel (additives) on a full tank. Disconnect/saw

the exhaust line before the catalytic converter conduit and hose into the cabin.
It's not possible with modern cars is a myth. Rip out the catalytic converter and you have pure same engine exhaust on the flow line.
You'd have to test the setup depending on the vehicle for ppm concentration and depletion time plot.
Easiest would be another method but not publicly disclosing. For informational purposes only. I do not endorse this and assume no responsibility for others actions.
May you find your peace whichever way you go. Don't act on impulse.