Hmmm.....No carbon deposits, hence no carbon saturation issues, hence better flame propagation across chamber, hey, I think I like the idea! Tuning and timing issues would have to be looked at, delivery rates, pressures, etc. Are the major tuning companies into this yet?
Not really, you still get build up in the intake with propane. I work on LPG Lifts and gunk will build up over a period of time. We actually use fuel controllers and Cats as an emission system on the lifts we have. As far as the Nitrous that would be interesting to see someone to do it.
Good friend of mine has propane injection and 3 stages of nitrous on his cummins diesel. Looks like a plumbers nightmare but he is getting awesome results, but I'm sure gas motors might be a lil differnt.
I would like more info, I just posted a thread asking about my new idea for my spray and maybe this could eliminate half of the equation if I am to use Propane rather then another bottle and fuel cell