Durametric what to log
Ive just got a shot of a copy of Durametric thanks to Stevo996 , so what readings do i need to log to check the map in my car.
I was thinking revs, maf, lambda 1+2, timing. |
what are you wanting to datalog for?
my Mechanic likes to see these RPM Engine load Intake air temperature Ignition angle Oxygen sensing bank 1 Lambda setpoint, B1 Adaption, range 2 (FRA) bank 2 Boost pressure of sensor |
We do:
rpm engine load oxygen sensing bank 1 or 2, lamda value- this is your AFRs... ignition angle boost of pressure sensor... with these values we can fine tune your car... |
Thanks alot :)
I realy just want to do a couple of logs to see how good the map in my car is , as the car was already tuned when i bought it. I know who di the map and they have a good rep but have personaly never used them before. |
On the Durametric, what is "Boost Pressure of Sensor" is that Boost in hecto pasqual? If so does anyone know how to convert?
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That's absolute pressure in millibar. Subtract 1000 for atmospheric pressure (assuming you're at sea level) and that will give you boost pressure.
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I also log injection time, which can be converted to duty cycle by the following formula:
Duty cycle (%) = (Inj. time)*(RPM)/1200 This lets you know where you are with respect to the ability of the fueling system to keep up. Jon |
Wouldn't exhaust gas temperature also be usefull ?
what would be a reasonable temp. at full boost in 4th or 5th gear ? |
The 996TT doesn't have true exhaust gas sensors... it approximates the info based on a complex model in the ECU. When you modify the exhaust, ECU tune or turbos, the EGT model becomes significantly less accurate.
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Originally Posted by Robin@EPL
(Post 2947469)
The 996TT doesn't have true exhaust gas sensors... it approximates the info based on a complex model in the ECU. When you modify the exhaust, ECU tune or turbos, the EGT model becomes significantly less accurate.
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The distance between your thermocouple and the exhaust port will affect the temperature reading.
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Originally Posted by Alan C.
(Post 3068110)
The distance between your thermocouple and the exhaust port will affect the temperature reading.
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Add throttle position sensor 1 to the list.
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Originally Posted by Robin@EPL
(Post 2947345)
That's absolute pressure in millibar. Subtract 1000 for atmospheric pressure (assuming you're at sea level) and that will give you boost pressure.
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Originally Posted by dixie
(Post 2947551)
I have an aftermarket EGT sensor and my exhaust gas temp. at full boost is between 980 and 1000 degrees celcius (650-700 at cruising),I thought it was much to high but I also have a Saturn Sky redline and they are also around 1000 degrees celcius so I asked a tuner if this wasn't to high and he told me it was normal ? What's your opinion?
Can I ask where do you installed the EGT sensor? In the exhaust manifold or after the turbo? The 1000°C are reached after how long time you're at WOT and what rpm range? Thank you :) |
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