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| Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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10-01-2005, 11:31 AM
| #1 |
| Zilvia Junkie   | EGT temp. simple question: How hot does ur egt guagr read @ cruising, 5th gear, around 4k rpm??? my Apex-i egt read about 950 degree when i'm cruising @ about 80 mph on 5th gear at around 4k rpm. is that too high?( on stock exhaust system). post ur egt temp. C
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10-02-2005, 06:48 PM
| #4 |
| Zilvia Junkie | it's "C" i tap teh sensor @ the collector on the manifold before the turbo. and as i stated ealier my exhaust is totally stock, stock 02 housing, stock DP. what should be the normal reading??
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10-02-2005, 07:03 PM
| #5 |
| Zilvia Junkie | 950 degrees celcius is 1742 degrees fahrenheit.... basically enough to start melting low grade steel. you might want to make sure its celcius, if its actually fahrenheit thats not too bad.
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10-02-2005, 08:36 PM
| #6 |
| Zilvia Junkie | well, I figure I'd do myself a favor, and check my timing, sure enough I was about 15 deg off! i was @ TDC!!, set it to 15 BTDC, and went out for a drive. my EGT is now not over 800c degree. phew... Now would somebody want to explain to me, why is it. that I was running lean when my timming was retarded to TDC, and better with more timming??? will somebody enlighten me on this fact?? thanks in advance. C and o yes, my car feels soo much better now.
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10-03-2005, 02:15 AM
| #7 |
| Zilvia Junkie  | Fisrt, good to know you went and checked your timing and found the problem before you turned the engine into metal soup with extra pulp. I kept my eye on the gauge last night just to see what cruising temps are like and at 85mph I was running at 720C and at WOT up to 120 never went over 825C. It was kind of cool last night so I assume I would see temps at around 840 - 850C in the afternoon. I have the sensor mounted just like you have it just b4 the turbo. The explanation is simple, you now have the timing the way it should be. John |
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10-03-2005, 04:42 AM
| #9 | |
| AFC #1   Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家
Posts: 18,765
Trader Rating: (2) Feedback Score: 2 reviews | Quote:
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10-03-2005, 06:37 AM
| #10 |
| Zilvia Junkie | He Asked Why Didn't They Tap It For The Leanest Cylinder.... Which Would Make Sense Because It Would Be The Most Tall-tell Sign Of A Problem, But At The Collector Is Good Enough For A Proper Reading.
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10-03-2005, 02:04 PM
| #11 |
| Zilvia Junkie Join Date: Nov 2004 Location: LA,CA & Windsor, ON
Posts: 419
Trader Rating: (4) Feedback Score: 4 reviews | I have somewhat the same problem. My EGTs hit 1650 F at times in 5th gear (round 140km/h) under slight load, they however around the 1600 F marker. My timing is set to 17 deg though so I really dont know what my problem is.
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