How long does it take your Esprit to get up to warm?
Discussion
My Esprit is an 88' 4 banger with the Bosch K-Jetronic fuel system... so there may not be a real good comp. here... but my car takes about 5 minutes to warm to 70ish C, and another few to get up into the true operating temp range between 80 and 90 C. on cold days.
Drive topless!!!
Cameron
Drive topless!!!
Cameron
it varys with the ambient tempurature that day. it of course helps to give it some gas and rush it to recommended idle speed. i'm impatient, so i don't warm up the car completely before driving. i just take it slow with the choke on until it idles at 9500. my choke is modified, because the stock lotus control didn't travel very far. the pull now encompasses the full capable range.
teigan said:
it varys with the ambient tempurature that day. it of course helps to give it some gas and rush it to recommended idle speed. i'm impatient, so i don't warm up the car completely before driving. i just take it slow with the choke on until it idles at 9500. my choke is modified, because the stock lotus control didn't travel very far. the pull now encompasses the full capable range.
9500 rpm ..........you sure about that?
markuskj said:
Hello - I have a 1996 V8 that has been away in the garage for some time. I do not know if this is just the winter but driving it recently the car seems to take an geological age to heat up on the temp gauge - also the car is freezing all the while.
Is this normal?
Is this normal?
Long time to warm could mean a stuck thermostat which is allowing too much coolant flow rather than regulating coolant flow to achieve proper tepm of around 82C.
My car tends to take a long time to warm the oil in the winter with those 2 oil coolers, so I'm putting in an oil cooler thermostat...
lotusse89 said:
markuskj said:
Hello - I have a 1996 V8 that has been away in the garage for some time. I do not know if this is just the winter but driving it recently the car seems to take an geological age to heat up on the temp gauge - also the car is freezing all the while.
Is this normal?
Is this normal?
Long time to warm could mean a stuck thermostat which is allowing too much coolant flow rather than regulating coolant flow to achieve proper tepm of around 82C.
My car tends to take a long time to warm the oil in the winter with those 2 oil coolers, so I'm putting in an oil cooler thermostat...
Ah, an interesting thought. How would I identify a stuck thermostat?
markuskj said:
Okay - stupid question, and a bit lazy of me - where is the thermostat? I can get the book out and look later but am away for the book and the machine just now.
The V8 thermostat is on the top middle of the front of the engine, near the firewall, and it is inside that Y-shaped aluminum thing with two large coolant pipes going into it.
Use ONLY the correct Lotus 82C (IIRC) thermostat for the Esprit V8. do not try to get a warmer or cooler thermostat. The Esprit ECU requires a certain temperature from the coolant to allow full functioning of the car (full BOOST).
lotusse89 said:
markuskj said:
Okay - stupid question, and a bit lazy of me - where is the thermostat? I can get the book out and look later but am away for the book and the machine just now.
The V8 thermostat is on the top middle of the front of the engine, near the firewall, and it is inside that Y-shaped aluminum thing with two large coolant pipes going into it.
Use ONLY the correct Lotus 82C (IIRC) thermostat for the Esprit V8. do not try to get a warmer or cooler thermostat. The Esprit ECU requires a certain temperature from the coolant to allow full functioning of the car (full BOOST).
Perfect - cheers. And will it be quite obviousiif it is not working?
markuskj said:
lotusse89 said:
markuskj said:
Okay - stupid question, and a bit lazy of me - where is the thermostat? I can get the book out and look later but am away for the book and the machine just now.
The V8 thermostat is on the top middle of the front of the engine, near the firewall, and it is inside that Y-shaped aluminum thing with two large coolant pipes going into it.
Use ONLY the correct Lotus 82C (IIRC) thermostat for the Esprit V8. do not try to get a warmer or cooler thermostat. The Esprit ECU requires a certain temperature from the coolant to allow full functioning of the car (full BOOST).
Perfect - cheers. And will it be quite obviousiif it is not working?
Not obvious.
You'd have to stick it in a pot of water on the stove and see the thermostat open at 82C. If the thermostat works, I'd still replace it anyways, they don't cost much, and they don't last forever.
Edited by lotusse89 on Thursday 22 February 22:40
cross-eyed-twit said:
9500rpm.... BANG!
I think we all know you meant 950...
I think we all know you meant 950...
Edited by cross-eyed-twit on Wednesday 21st February 18:59
thanks for the correction. been spending too many hours playing on my CNCmill, and my fingers are conditioned to 4 digit rpm numbers. i need to be more careful, especially when online banking.
so do the V8 cars typically take longer to warm up than earlier models?
Good info - ta - always looking to learn. Not really relevant but i have 1985 S3 Targa 2.2 - only 4 cylinders non turbo. However in winter it take 4 - 7 mins to get to 70+ but only 2 - 3 mins in summer (Scottish style winter and summer that is !!). Thought i chuck in my bit - cheers.
It should warm up quicker than what you have explained. When I got my 89 SE it was taking forever to warm up and never went above 70 degrees. The guy I bought it from thought the car just ran cool. But of course, its running in open loop mode and the boost is lowered until an operation temperature of around 80d is reached, if ever. Its also running in an enriched fuel mode as well to warm the engine up quickly. So I changed the thermostat and it warms up now within about 3 minutes when left to idle, and of course, full boost since its reached closed loop mode.
When the engine is cold and the thermostat is closed, the water is recirculated within the engine block and not through the radiator. As the engine water heats and gets to the thermostats opening temperature, it opens enough to let the heated water out and cold water in then closes again. This continues until the water in the radiator has warmed up sufficiently then the open and closing of the thermostat is happening faster, regulating the amount of 'cooled' water into the engine block. (proportional to the amount of hot water let out).
So you see, the thermostat is a very important part of the car.
Left faulty for too long, you have slow warmups, more engine wear, washed bores from rich mixture and lack of power from reduced engine boost. And not to mention the heater not working properly on those cold mornings
When the engine is cold and the thermostat is closed, the water is recirculated within the engine block and not through the radiator. As the engine water heats and gets to the thermostats opening temperature, it opens enough to let the heated water out and cold water in then closes again. This continues until the water in the radiator has warmed up sufficiently then the open and closing of the thermostat is happening faster, regulating the amount of 'cooled' water into the engine block. (proportional to the amount of hot water let out).
So you see, the thermostat is a very important part of the car.
Left faulty for too long, you have slow warmups, more engine wear, washed bores from rich mixture and lack of power from reduced engine boost. And not to mention the heater not working properly on those cold mornings
"The V8 thermostat is on the top middle of the front of the engine, near the firewall, and it is inside that Y-shaped aluminum thing with two large coolant pipes going into it."
WOW - that is much more inacessable that I realized - has anyone one here actually done this?
If so, any pointers?
WOW - that is much more inacessable that I realized - has anyone one here actually done this?
If so, any pointers?
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