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HypermilerAX · 07-09-2013, 06:45 AM

Doesn't increasing the power of the engine increases consumption, the load of the engine being lower?
With your data, I calculated that your engine has 29% efficiency (289,9 g/kWh) during your record. To make 2 l/100 km at 100 km/h you need 34,66% efficiency.
On a stock Lupo, the best efficiency at stabilized speed and on the flat is achieved in 5th gear at 150 km/h. At that speed, the car burns 5,52 l/100 km (SSP_218) which makes 33,56% efficiency (250,5 g/kWh). And the engine turns at 3158 rpm which means that better efficiency can be achieved at lower rpm (1500-1750?) and equal load which means... custom bigger gearing (like 60 km/h at 1000 rpm or even more). What is your engine load at 100 km/h?

07-09-2013, 06:45 AM	#304 (permalink)
HypermilerAX EcoModding Apprentice Join Date: Apr 2011 Location: Southern France Posts: 159 AX - '95 Citröen AX 307 - '04 Peugeot 307 SW Thanks: 12 Thanked 67 Times in 37 Posts	Doesn't increasing the power of the engine increases consumption, the load of the engine being lower? With your data, I calculated that your engine has 29% efficiency (289,9 g/kWh) during your record. To make 2 l/100 km at 100 km/h you need 34,66% efficiency. On a stock Lupo, the best efficiency at stabilized speed and on the flat is achieved in 5th gear at 150 km/h. At that speed, the car burns 5,52 l/100 km (SSP_218) which makes 33,56% efficiency (250,5 g/kWh). And the engine turns at 3158 rpm which means that better efficiency can be achieved at lower rpm (1500-1750?) and equal load which means... custom bigger gearing (like 60 km/h at 1000 rpm or even more). What is your engine load at 100 km/h? __________________ Citroën AX 1.5 D 430.000 km Peugeot 307 SW 2.0 HDI 136 195.000 km Last edited by HypermilerAX; 07-09-2013 at 06:55 AM..