[pgfpro]

Originally Posted by naturalextraction

Hey Amigo...I hadn't seen this thread! Now what you sent me makes a bit more sense. You most certainly have increased your overall adiabatic efficiency with obvious recapture of heat energy to do a bit more work. Any idea what your overall efficiency gain has been realizing the engine and drive train losses? Any target number your looking for goal wise?
This is a pretty cool project and also realize why you are wanting to utilize waste solvent. I have a bunch too along with waste oils I'm using for heat right now.

Also if this helps your thinking any, more of a response to a few pages back, my Proto bikes turbo is designed to produce positive pressure just above 1k in rpm under load. This was necessary for what I'm doing. Thus why I had to hybrid the turbo.

Also I have Variable Valve Oil Restrictors that I make (inline mostly with both ends tapped npt 1/8 for any AN fitting) and have available at some local speed shops here. I'd be happy to send you one on me...It helps with dialing in flow rate with different oil viscosity, different operating and ambient temperatures and you can dial in how many ml exactly to keep oil resistance down yet keep the unit well lubed during operations. especially at WOT. My IHI on the SV has the flow rate set at 75ml per min and has worked well for over 30K miles. I use a 10/40 in winter and 10/50 in summer. btw, just tried out my extremely difficult to cut titanium journal bushing, it's pretty equivalent to ball bearing performance!

Way interesting thread ya got here!!

I haven't figure out what my efficiency gains are as of now? I know a stock Talon AWD, auto at 65 mph gets around 22mpg. So far I'm at 38mpg at 65 mph. My 65 mph goal is to get 40 mpg. Where I live, my work commutes you have to drive 65 or people will run you over. My other goal is to get 50mpg at 50 to 55mph. I'm pretty sure it will do it from last years testing.

This is one my main goals for the turbo compound system is to be in boost pretty much all the time off idle. So far its been working. Boost in combination with lean burn is great for efficiency. The most difficult part was tuning the light freeway load. If I had to back off the throttle all the way and get back into it it tends to hunt for fuel from the lean deceleration part of the map (injectors off). I think there isn't any residual fuel on the heads intake ports and runners from being in ultra lean burn. I could increase the decel part of the map but that would just be wasting fuel!! So last year I figure out by doing a light brake boost I could slow the car down for the traffic and keep from dealing with this strange phenomenon, but I then eventually ran out of vacuum to run my brakes. So this year it has a electric vacuum system.
Vacumm pump in the middle of the pic



That would be awesome!!! Much appreciated!!!