05-16-2015, 11:03 PM
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#11 (permalink)
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So he should go out there with a screwdriver and increase the valve overlap?
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05-16-2015, 11:36 PM
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#12 (permalink)
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It's all about Diesel
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Quote:
Originally Posted by Frank Lee
So he should go out there with a screwdriver and increase the valve overlap?
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Not before doing some calculation to figure out the best overlap. And that works easier for engines with VVT at both intake and exhaust, such as the Mazda SkyActiv-D. |
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05-16-2015, 11:42 PM
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#13 (permalink)
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How about shoving a potato up the tailpipe?
Seriously. WTH?
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05-17-2015, 03:21 AM
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#14 (permalink)
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Eco-ventor
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Diesels typically come with a variable potato known as an EPR.
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2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
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05-17-2015, 10:42 AM
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#15 (permalink)
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Corporate imperialist
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http://ecomodder.com/forum/showthrea...ler-29085.html
Repurpose an EGR cooler for fast engine warm up or instant cabin heat with out external power.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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05-17-2015, 08:25 PM
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#16 (permalink)
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Master EcoModder
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When the engine is cold. Does it help to heat up the common fuel pressure rail with an 12V 500W silicone heater? So the diesel is hotter when injected? Or instead of the common rail, the metal fuel line from the rail to the injector?
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Drive smart, save fuel, save money, spare the enviroment
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Previous car. SUV. From 2011 + 10l/100km to 2017 5,516l/100km.
2017 without holiday: 5,397l/100km
EPA Rated average: 8,1l/100km
Current ride: plug in 285hp hybrid
EPA Rated average: 2,8l/100km
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05-17-2015, 09:22 PM
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#17 (permalink)
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It's all about Diesel
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Quote:
Originally Posted by TimV
When the engine is cold. Does it help to heat up the common fuel pressure rail with an 12V 500W silicone heater? So the diesel is hotter when injected? Or instead of the common rail, the metal fuel line from the rail to the injector?
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Why not heating the tank instead (like it's done in some heavy trucks)? |
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05-17-2015, 11:26 PM
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#18 (permalink)
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Master EcoModder
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Quote:
Originally Posted by cRiPpLe_rOoStEr
Why not heating the tank instead (like it's done in some heavy trucks)?
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Because it is easyer and les energy heavy to heat up 0,05l of diesel and a total of only 2,5l for the longest rout i need to drive (home-work). Then heating up 70l. All powerd by the alternator.
__________________
Drive smart, save fuel, save money, spare the enviroment
But keep having fun!
I can drift
Previous car. SUV. From 2011 + 10l/100km to 2017 5,516l/100km.
2017 without holiday: 5,397l/100km
EPA Rated average: 8,1l/100km
Current ride: plug in 285hp hybrid
EPA Rated average: 2,8l/100km
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05-18-2015, 05:33 AM
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#19 (permalink)
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It's all about Diesel
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I'm still not so sure about the safety of heating the high-pressure rail. Where else could you fit that heater?
Anyway, what are the factory-fitted cold start aids into your car? Just the glowplugs? What do you think about a grid heater?
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05-18-2015, 06:37 AM
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#20 (permalink)
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Master EcoModder
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Quote:
Originally Posted by oil pan 4
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This maybe the best idea yet.
Perhaps run a heart exchanger on the exhaust?
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