sims76 Posted September 16, 2004 Share Posted September 16, 2004 Here's an interesting Megasquirt datalog that I took this morning on the way to the inspection station. Keep in mind that I do not have an intercooler and I have the air filter stuck right on the turbo inlet. Very Hot!!! Notice how the air intake temperature is reasonable (ambient was about 80 degrees F) until the water warms up and the thermostat opens and the radiator gets hot. Keep in mind that I calibrated this sensor myself using temperature/resistance pairs so it may be off a little, but it seems to be accurate within 10 degrees F in my experience. Just thought I'd pass this along. Time to install the intercooler and put the intake in front of the radiator where it belongs. -Sims Quote Link to comment Share on other sites More sharing options...
mobythevan Posted September 16, 2004 Share Posted September 16, 2004 That is pretty much what I saw. I pull air from behind the radiator and when the thermostat opens I get 135 degrees F with no intercooler and no boost, just hot air from engine compartment. The IC fixed that. It is a lot of fun to play with the datalogging and see what is happening with all the sensors. I want an electronic fuel presser sensor that logs to my MSnS or to the Tech edge unit. Quote Link to comment Share on other sites More sharing options...
Tony D Posted September 18, 2004 Share Posted September 18, 2004 Ditto Here. I was seeing 162 degrees at idle under some circumstances. Not bad for only having moved about five miles total, huh? I am running a 160 degree thermostat, and tweaked enrichments to not come in at the temperatures they normally would. This was one of thereasons I went with MS, was I could tweak and run the lower thermostat without the fuel enrichment being on all the time. I have had very good luck with 160 thermos in the desert with carbbed cars, and figured "why not". I change to a 170 or 180 during winter, though. So I am somewhat diseased... You guys might consider the 160 thermo yourself to help performance if you are seeing the temps track similarly. Good Datalog, information good for everyone, not just MS users! Quote Link to comment Share on other sites More sharing options...
Cody 82 ZXT Posted September 21, 2004 Share Posted September 21, 2004 Thanks for the info. Sorry it took me so long to look at it. Wonder what would happen if you took the exact same combo and ran a hose from the front of the radiator to the air inlet. Measure that and then hook up the air filter infront of the radiator and see what happens then. Quote Link to comment Share on other sites More sharing options...
sims76 Posted April 13, 2006 Author Share Posted April 13, 2006 Hey guys, just a follow up almost a year and a half later to this old post. Now that I'm intercooled, my intake air temp stays below 100 degrees F even under full boost at 14psi. Good stuff. Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted April 13, 2006 Share Posted April 13, 2006 sims, Where is the intake air filter now that you have the intercooler? Quote Link to comment Share on other sites More sharing options...
sims76 Posted April 13, 2006 Author Share Posted April 13, 2006 I forgot to mention that. It's still sitting on the intake of the turbo. But, since I have solid evidence that the IC is cooling well, I'm not sure I'm in a rush to move it in front of the radiator. Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted April 13, 2006 Share Posted April 13, 2006 That is great news! I am going to be switching to standalone and getting rid of the AFM and restrictive cold air intake. Now I see I don't have to run a cold air intake at all. That is exciting news to me! My intercooler is pretty efficient too. Thanks. Quote Link to comment Share on other sites More sharing options...
sims76 Posted April 13, 2006 Author Share Posted April 13, 2006 The only doubt I have is that the reaction time of the sensor isn't that great and when I read 99 degrees under 14psi for 10 seconds or so I'm not convinced that the temperature didn't actually spike to much higher...... Any thoughts on this? I'm using an air temperature sensor from a KIA. Quote Link to comment Share on other sites More sharing options...
evildky Posted April 13, 2006 Share Posted April 13, 2006 before I added the I/C I had the AIT mounting in the uturn of the J pipe, and was reading 220 intake temps at 13 psi and yeah the engine temps would were close at full boost Quote Link to comment Share on other sites More sharing options...
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