Tim@TBDevelopments
Lifer
right i know the stock intercooler is bad but i didn't ever realise how bad they were.
today i've been testing a few things and doing some datalogit runs as my car runs an apexi power fc, but the car is fairly lightly modded.
its running 0.9bar on a ct9
blitz decat
blitz nurspec
blitz air filter
so you'll see this is very basic and should be well within the capacity of the stock IC.
today was walm but not stupidly hot, and i fitted a fast responce MAT sensor, this is a common mod in the 3sgte world, i checked the resistances from the stock sensor to the uprated one to make sure they were reading correctly and they were ideantical.
i used to notice that if i did a 3rd and 4th gear run to redline intake temps were getting to a high 55 degree's on the origanl mat sensor display on the power fc, 55 is about as high as i'd like to see but even worse this was just 2 gear run, wasn't even more than 10 seconds of playing and its at those temperatues, orignal intakes were 29 degree's before the run.
after installing this new sensor which has a refresh rate far superiour to the stock sensor i found it was even more concerning, the 10 seconds (est) needed to do the 2 gear run the stock sensor wasn't actually reacting fast enough to the rising temperature. THis is where the new sensor comes in as it reacts so fast you can see the temperature rising in real time. I did a 3rd and 4th gear pull again and i was horrified to see 79 degree intake temps and the power fc was pulling 2 degree's out to try and save the engine will knock levels increasing beyond normal.
Now remember this was for doing a 2 gear pull. before i started this test i was playing with the car and launched it from 1 to top of 4th and they actually maxed the sensor out at 90 degrees, this is engine failure territory. so imagine what they would be like if you had a good 5 mins of racing and playing with the car.
The very high temps were down to compressed air because as soon as you life off it'll drop 20 degree's instantly, this is also why the stock slow responding MAT sensor won't record those readings, but even more worring because it can't record those results the stock ecu can't pull the timing to help protect the engine like the power fc was.
i dropped the boost down to factory 0.6bar range and i did the 4 gear run again and they only went to the 55 degree intakes. from this test atleast in todays weather it seems that if you want to raise the boost you really want to fit an uprated intercooler
don;t know if this is any good to anyone but just thought i would share my results. i'm about to fit my chargecooler in a few weeks with some methanol injection so i'll report back with how this effects temps with this new fast responce sensor.
its just scary to see how close our engines are to trouble with just the basic modifications, i think its the low compression of these engines which actually saves them in this very high intake temps.
Tim
today i've been testing a few things and doing some datalogit runs as my car runs an apexi power fc, but the car is fairly lightly modded.
its running 0.9bar on a ct9
blitz decat
blitz nurspec
blitz air filter
so you'll see this is very basic and should be well within the capacity of the stock IC.
today was walm but not stupidly hot, and i fitted a fast responce MAT sensor, this is a common mod in the 3sgte world, i checked the resistances from the stock sensor to the uprated one to make sure they were reading correctly and they were ideantical.
i used to notice that if i did a 3rd and 4th gear run to redline intake temps were getting to a high 55 degree's on the origanl mat sensor display on the power fc, 55 is about as high as i'd like to see but even worse this was just 2 gear run, wasn't even more than 10 seconds of playing and its at those temperatues, orignal intakes were 29 degree's before the run.
after installing this new sensor which has a refresh rate far superiour to the stock sensor i found it was even more concerning, the 10 seconds (est) needed to do the 2 gear run the stock sensor wasn't actually reacting fast enough to the rising temperature. THis is where the new sensor comes in as it reacts so fast you can see the temperature rising in real time. I did a 3rd and 4th gear pull again and i was horrified to see 79 degree intake temps and the power fc was pulling 2 degree's out to try and save the engine will knock levels increasing beyond normal.
Now remember this was for doing a 2 gear pull. before i started this test i was playing with the car and launched it from 1 to top of 4th and they actually maxed the sensor out at 90 degrees, this is engine failure territory. so imagine what they would be like if you had a good 5 mins of racing and playing with the car.
The very high temps were down to compressed air because as soon as you life off it'll drop 20 degree's instantly, this is also why the stock slow responding MAT sensor won't record those readings, but even more worring because it can't record those results the stock ecu can't pull the timing to help protect the engine like the power fc was.
i dropped the boost down to factory 0.6bar range and i did the 4 gear run again and they only went to the 55 degree intakes. from this test atleast in todays weather it seems that if you want to raise the boost you really want to fit an uprated intercooler
don;t know if this is any good to anyone but just thought i would share my results. i'm about to fit my chargecooler in a few weeks with some methanol injection so i'll report back with how this effects temps with this new fast responce sensor.
its just scary to see how close our engines are to trouble with just the basic modifications, i think its the low compression of these engines which actually saves them in this very high intake temps.
Tim
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