Gauges - where the needles should sit!

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  • A80Avant
    replied
    in mine with a cooler thermostat and sensor,the fan kicks in just under 90 (when the A/C shows 86-87 actually) and during speeding it is around 86 to 87C (water temp)

    the others are about the same as andy described,only needs much harder pushing to get the oil temp moving due to the bigger oil cooler

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  • Graham
    replied
    On a hot day over here (40+C) after a good thrash my oil goes to 110-115 deg.c. It normally sits at the 90 mark, the water sits on a cruise at 1 notch below 90, in town it sits on 90 and a bit of spirited driving takes it to one notch over where the fan kicks in. And i dont have the Aux rad, and use the aircon which cools the car even more as it brings the fan in constantly on the first speed.
    Graham

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  • AUDIS2avant
    replied
    Hmm on my meter, the fans start at 105deg and water sits between 90+2 - 90+4 and this was raised after i changed the mfts sensor???
    It is NEVER below 90 when it´s up to normal working temps

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  • stiglet
    replied
    I wonder at what temperature the oil becomes permanently damaged?

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  • Rusty
    replied
    Yeah, on track S2 hits 13 ish. Not had higher, would back off if it was much more.

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  • stiglet
    replied
    Seen above 130 on oil temps on the 7A. On a spirited motorway drive, seen just below 130. My old 10v used to be the same.

    Still waiting to see what difference the cooler makes on track but on the motoway it is cooler. Hate to imagine what an S2 would be like with no cooler!

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  • mcandmar
    replied
    Oil temp can get very hot on a CQ20v due to lack of oil cooler, steady cruise down the motorway at 85-90 (~4000rpms) for a while will get up to 100c. If i red line away from the toll booth to the end of 4th gear it will rise to the line before 130c. Basically any prolonged WOT use above 5000rpms make the dial move pretty quickly.

    It does however cool down very quickly too, usually the time it takes to coast down a motorway slip road will bring the temp down to normal levels. Using those figures as a basis just shows how important the oil cooler is on the turbo charged motors.

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  • Rusty
    replied
    Sweet, I've seen just over 110 then

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  • Jamo
    replied


    For reference
    Attached Files

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  • Rusty
    replied
    For want of a better picture, here's where it should sit...
    Attached Files

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  • StianB
    replied
    Originally posted by Andy_Casey
    That oil pressure was at operating temperature and about 4k rpm so ties in with Steve's readings. At cold it's off the scale. 10W60 will be higher also.

    I'll try and get a water temp gauge pic at operating temp. Anything below 80 is bad as the ECU goes into warm-up mode and so uses more fuel... Yes, that is possible in an S2!
    Is this on my 92-S4 also? How will I notice this "ECU VARM-UP" when im driving? Got alot of problems with my water temp and i know there is a leak somewhere but i can't locate where the water come out of the system.

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  • Rusty
    replied
    Originally posted by rj scotty
    I could have temp sensor fault as my fan cuts in at 90/90-1.
    Or you've got a cooler rad switch. Not a bad thing, I've hard wired the fan for traffic and track use.

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  • Rusty
    replied
    That oil pressure was at operating temperature and about 4k rpm so ties in with Steve's readings. At cold it's off the scale. 10W60 will be higher also.

    I'll try and get a water temp gauge pic at operating temp. Anything below 80 is bad as the ECU goes into warm-up mode and so uses more fuel... Yes, that is possible in an S2!

    Pictures show the Voltmeter. Mine shows 13.7V, I think this is healthy, somewhere between 13.5V and 14V should be about right. Over 14.5V is too high and indicates a damaged alternator voltage regulator I think.

    Any other gauge pictures? I'm not brave enough to do a turbo boost one on my own. Tried that with a video and it wasn't a great idea. If I get some help I might do it.

    One last thing, mods, please can you sticky this thread for posterity. Ta.

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  • rj scotty
    replied
    I could have temp sensor fault as my fan cuts in at 90/90-1.

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  • Fat Audi 80
    replied
    I agree with Andy's numbers there, although I see 4.5 - 5 bar of oil under full pressure, pretty much off the scale actually.

    I would also agree that the fan should only cut in at 90 + 1 increment, and run at standard speed only for approximately 30 secs to 1 min before switching off again. The high speed fan should only cut in when very very hot water temps are seen.

    Oil temps should follow water unless the car is on track or being thrashed in the summer!

    Cheers,

    Steve.

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