02-07-2014, 10:10 AM
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#1 (permalink)
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EcoModding Lurker
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Toyota Lean Burn?
I am sure this question has been asked before but i can not find any specific answer.
Do any of the Toyota 4-cyl. engine have a "lean burn" feature?
I am just really starting out at this stuff, but i have managed to get 2 tanks @ 40mpg~ in my corolla. Well, not since it has gone below freezing.
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02-07-2014, 10:13 AM
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#2 (permalink)
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Too busy for gas stations
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The wikipedia page has some info on a toyota lean burn. I believe its a different engine then your corolla.
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02-07-2014, 10:22 AM
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#3 (permalink)
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Could you give me that link id like to look into that.
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02-07-2014, 10:47 AM
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#4 (permalink)
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The only Toyota engine I've heard has lean burn was the 7A-FE, the 1.8L engine that preceded your 1ZZ-FE. It was only available as a lean burn engine overseas. I haven't ever really seen any good info on it though.
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02-07-2014, 10:57 AM
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#5 (permalink)
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Too busy for gas stations
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Turtle - '92 Honda Civic Vx Team Honda 90 day: 67.09 mpg (US) Rolla - '10 Toyota Corolla Le Beast - '91 Chevy V2500 Bus - '01 VW Eurovan MV Speed - '93 Harley bored and storked Harley w/ turbo/ nitrous 90 day: 53.09 mpg (US) Cal - '68 Ford Mustang GT/CS
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02-07-2014, 11:15 AM
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#6 (permalink)
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Thank you xntrx for the links i will look over them when i get the chance. i am thinking i may try a grill block out while these temps are below freezing.
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02-07-2014, 02:06 PM
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#7 (permalink)
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Batman Junior
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Grille blocks: they're not just for winter anymore!
Hopefull you have a ScanGauge or equivalent so you can monitor coolant temps accurately.
Most people can leave a partial grille block on year round.
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02-07-2014, 03:11 PM
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#8 (permalink)
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I do not have a scan gauge or the funds to purchase such a device, my car does have an on board analog temp gauge, it consistently sits at about 3/8 of the gauge. there are no numbers on the thing.
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02-07-2014, 04:36 PM
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#9 (permalink)
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The onboard gauge is not adequate for detecting overheating. Your radiator fan could be running like crazy and that gauge won't budge.
If you want a real cheap solution, wire a 12V light to the radiator side of the radiator relay. That'll tell you if you're getting too hot.
I would still recommend getting a gauge. It'll pay for itself fairly quickly.
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02-07-2014, 07:42 PM
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#10 (permalink)
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For what it's worth, in California "winter" (aka 70F) the coolant temp needle takes forever to finally move past 1/4 of the way after the "C" on my MR2 with the same engine, and I have the grill blocked 75%. Torque tells me the temperature sits at ~75-80C and slowly rises from there if the car is not really moving. Now add 20C for hot summer temps, I think you'll be okay.
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