N4cer,
The challenge of your project is that the modern exhaust gas management systems of both diesel and gasoline street vehicles (EGR, catalytic converters, etc.) will tend to break down the aroma compounds (terpenes, esters, aromatics, etc..) that you introduce through the fuel system.
Another problem might arise with the computer managed fuel/ignition system and a "re-tune" might be required to overcome the effects of: 1)increased inlet manifold pressure and reduced throttling losses, 2) heat rejection...lowered peak combustion temperatures not only reduces NOx formation, it also reduces the loss of thermal energy to combustion chamber surfaces,and 3. chemical dissociation.....lower peak temperatures result in more of the released energy remaining as sensible energy near TDC, rather than being bound up in the dissociation of combustion products.
The Manhattan Oil fuel fragrances you cite are used in racing, aviation, motorcycles, and outdoor power applications that don't have these exhaust management systems. Manhattan Oil even recommends reduced efficacy of their product in catalytic systems.
In the research I assisted on some years ago utilizing the terpene Thujone (shown below), the CH3 would "break apart" under the conditions explained above.
You would be wiser to design a system that introduces an essential oil at the end of the exhaust system.
The challenge of your project is that the modern exhaust gas management systems of both diesel and gasoline street vehicles (EGR, catalytic converters, etc.) will tend to break down the aroma compounds (terpenes, esters, aromatics, etc..) that you introduce through the fuel system.
Another problem might arise with the computer managed fuel/ignition system and a "re-tune" might be required to overcome the effects of: 1)increased inlet manifold pressure and reduced throttling losses, 2) heat rejection...lowered peak combustion temperatures not only reduces NOx formation, it also reduces the loss of thermal energy to combustion chamber surfaces,and 3. chemical dissociation.....lower peak temperatures result in more of the released energy remaining as sensible energy near TDC, rather than being bound up in the dissociation of combustion products.
The Manhattan Oil fuel fragrances you cite are used in racing, aviation, motorcycles, and outdoor power applications that don't have these exhaust management systems. Manhattan Oil even recommends reduced efficacy of their product in catalytic systems.
In the research I assisted on some years ago utilizing the terpene Thujone (shown below), the CH3 would "break apart" under the conditions explained above.
You would be wiser to design a system that introduces an essential oil at the end of the exhaust system.
