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Trekintosh · 07-18-2020, 01:27 AM

Ambitious

Sequential port fuel injection: This car gets amazing fuel economy, but while the XFI cam does help, it’s still just throttle body fuel injection doing its best single barrel carburetor impression. No wideband AFR, no O2 sensor, we can do better with some modern technology. There’s plenty of room on the intake runners to put a fuel rail, and have complete control over this puppy. I’m talking aftermarket ECU (megasquirt, minisquirt, Speeduino all in the running), more sensors, lean the thing right to the edge of pinging, only give it gas when it needs it, maybe even cylinder deactivation?? Not to mention increased performance when required. This thing is scary slow. This is going to be a large project but it is all entirely doable and not even particularly expensive. I imagine we can get huge gains in economy while under load (hilly regions, and especially stop and go traffic).

Engine (+trans) swap: 1L Ecoboost 3-cylinder. Even smaller package than the metro engine. Again, aftermarket ECU, as I want to be able to completely bypass the turbo until needed, and I want control over the valve timing. Plus six speeds is better than 5. Id probably have to machine new 6th gears at great expense but we gotta do what we gotta do. Plus, if the metro engine is scary slow, this will be scary fast. Depending on tune these ecotoots can easily put out over 140 horsepower stock. I could flip a switch and go from George Jetson to Buck Rogers.

Silly:

Rear engine rear wheel drive why oh god why: move engine to the rear. Before I bought this car I had convinced myself I would never own a fwd car and I would very likely never own a car with less than 8 cylinders. We can rectify one of them. We have the technology. There is enough room. This would not be for economy. This would be if for some reason I grow entirely tired of EcoModding. I would be going for power and this would be a phenomenal track day car due to lightness. Yes, I am a hot rodder who also is gonna try for 150 mpg on the flat in this car. What can I say, the duality of this man.

I think I’ve covered all my plans. There’s all sorts of minutia I need to tend to but that’s way too fiddly to cover here. Please don’t worry too much about the rwd swap. That’s just fantasy theorycrafting that will never happen for the foreseeable future. The EFI and Ecoboost are very real plans however.

07-18-2020, 01:27 AM	#64 (permalink)
Trekintosh EcoModding Lurker Join Date: Jul 2020 Location: SLO county Posts: 48 Da Vinci - '91 Geo Metro Spaceship 90 day: 47.82 mpg (US) V8BARGE - '11 Ford Crown Victoria LX 90 day: 15.15 mpg (US) The Dakooter - '99 Dodge Dakota 4x4(FWD only) 90 day: 8.82 mpg (US) Thanks: 10 Thanked 49 Times in 25 Posts	Ambitious Sequential port fuel injection: This car gets amazing fuel economy, but while the XFI cam does help, it’s still just throttle body fuel injection doing its best single barrel carburetor impression. No wideband AFR, no O2 sensor, we can do better with some modern technology. There’s plenty of room on the intake runners to put a fuel rail, and have complete control over this puppy. I’m talking aftermarket ECU (megasquirt, minisquirt, Speeduino all in the running), more sensors, lean the thing right to the edge of pinging, only give it gas when it needs it, maybe even cylinder deactivation?? Not to mention increased performance when required. This thing is scary slow. This is going to be a large project but it is all entirely doable and not even particularly expensive. I imagine we can get huge gains in economy while under load (hilly regions, and especially stop and go traffic). Engine (+trans) swap: 1L Ecoboost 3-cylinder. Even smaller package than the metro engine. Again, aftermarket ECU, as I want to be able to completely bypass the turbo until needed, and I want control over the valve timing. Plus six speeds is better than 5. Id probably have to machine new 6th gears at great expense but we gotta do what we gotta do. Plus, if the metro engine is scary slow, this will be scary fast. Depending on tune these ecotoots can easily put out over 140 horsepower stock. I could flip a switch and go from George Jetson to Buck Rogers. Silly: Rear engine rear wheel drive why oh god why: move engine to the rear. Before I bought this car I had convinced myself I would never own a fwd car and I would very likely never own a car with less than 8 cylinders. We can rectify one of them. We have the technology. There is enough room. This would not be for economy. This would be if for some reason I grow entirely tired of EcoModding. I would be going for power and this would be a phenomenal track day car due to lightness. Yes, I am a hot rodder who also is gonna try for 150 mpg on the flat in this car. What can I say, the duality of this man. I think I’ve covered all my plans. There’s all sorts of minutia I need to tend to but that’s way too fiddly to cover here. Please don’t worry too much about the rwd swap. That’s just fantasy theorycrafting that will never happen for the foreseeable future. The EFI and Ecoboost are very real plans however.