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Topic: Temperature of the engine and fuel consumption. (Read 984 times) |
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tve
Junior Member
Independent service
Posts: 88
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Temperature of the engine and fuel consumption.
« on: Jul 11th, 2011, 8:10am » |
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Temperature of the engine and fuel consumption.
If to change the thermostat with temperature 87 (FORD) to the thermostat (VERNET 4898.92J) with opening of 92 degrees it is possible to reduce consumption idling by 9 %, in movement on 6-7 %.
Duration of injection of fuel decreases idling with 440 to 420 мs.
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Temperature of the engine and fuel consumption
« Reply #1 on: Jul 11th, 2011, 5:42pm » |
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interesting. which engine?
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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tve
Junior Member
Independent service
Posts: 88
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Re: Temperature of the engine and fuel consumption
« Reply #2 on: Jul 12th, 2011, 5:36am » |
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2.3 scorpio 1997
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Temperature of the engine and fuel consumption
« Reply #3 on: Sep 15th, 2011, 7:47pm » |
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is that same thermostat as in Astra F 1.4i?
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Temperature of the engine and fuel consumption
« Reply #4 on: Oct 29th, 2011, 9:37pm » |
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bought Opel Astra original thermostat, looks like fitting
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Temperature of the engine and fuel consumption
« Reply #5 on: Oct 30th, 2011, 3:07pm » |
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nah, its too small to be watertight, even with gasket..
maybe this is better?
ERT-225 6758566 termostaatti DOCH 92 ast
on ebay:
Ford Thermostat ERT 225 ERT225 6758566 Explorer 4.0 V6
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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tve
Junior Member
Independent service
Posts: 88
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Re: Temperature of the engine and fuel consumption
« Reply #6 on: Oct 30th, 2011, 3:40pm » |
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Use from MONDEO.
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Dave2302
Senior Member
2006 Mercedes S55 AMG, Retired Barefoot Waterskier
Posts: 1119
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Re: Temperature of the engine and fuel consumption
« Reply #7 on: Nov 3rd, 2011, 7:48am » |
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Yes, most fuel injection engines will run leaner with a hotter stat, but TBH it's not an option I'd consider, and just because it runs leaner doesn't mean it will ACTUALLY use less fuel during normal driiving.
It could use more.
In the past, with modern American V8's I've found they run better (a tad richer), with a cooler thermostat (around 70 to 75 degree).
This is because the little extra fuel makes them more efficient, hence you are using less fuel.
I'm going to be using a different thermostat set up on my BOB Cosworth 24V Powered 4WD Puma Rally Car, purely to make it run cooler. Fuel consumption is not an issue on a Stage Rally Car LOL...............
Mind I've always said that a BOB Cosworth runs too hot, because it's thermostat is regulating the water temperature EXITING the bottom of the rad, it will run cooler just by shifting the stat to the top hose.
For me getting the BOB at 72 degrees will be good 
Cheers Dave
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Dave "The 'ol Bear" ex Footer !
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Mike H
Senior Member
Renault Clio
Posts: 2594
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Re: Temperature of the engine and fuel consumption
« Reply #8 on: Nov 3rd, 2011, 4:57pm » |
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Interesting!
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Mike H
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Temperature of the engine and fuel consumption
« Reply #9 on: Nov 5th, 2011, 5:54pm » |
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hehe, I dont consider under 80c, or under 87c thermostat because sometimes local climate hits -15c - -30c  you will be freezing then because interior warming takes ages..
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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Dave2302
Senior Member
2006 Mercedes S55 AMG, Retired Barefoot Waterskier
Posts: 1119
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Re: Temperature of the engine and fuel consumption
« Reply #10 on: Nov 7th, 2011, 10:14am » |
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Yeah that will be a consideration LOL,
But most Cossies run at 90 + at the top hose exit, due to the thermostat being in the bottom hose 
This is why the under bonnet temps are so high on the darned things, and a contributing factor to the (Sh!te) wiring looms falling apart 
Cheers Dave
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Dave "The 'ol Bear" ex Footer !
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