Home Depot'd my CAI and dropped my IAT 20 degrees!
05-31-2009, 01:09 AM
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Home Depot'd my CAI and dropped my IAT 20 degrees!
So i installed this $60 Ebay no name intake a few months ago. CAI And i always wanted to seal it off from the engine bay, just never got around to it. Well my buddy was tuning it and told me if i got my IAT's down he could add a little more timing (idling for 20 minutes or so in the Texas heat with the A/C on full blast my IAT's were at 135*). So he suggested i seal off the air box. I did one better and made a crappy little scoop that gets fresh air from under the front bumper. Well i tried the idle for 20 min with A/C blasting test (outside temp was about the same) and my IAT's came down to about 115*. Even better is once i start moving they drop down to outside temp in a few seconds. Before at a stop light they would climb from 90* to about 117* then very slowly drop back down when i started moving. Now they climb from 90* to about 95* and drop back down to 90* in about 4 seconds after i start moving. I know it looks goofy but i don't care, it works.
All i used was some waxed cardboard i had laying around, flashing tape (you use this stuff to seal around doors and windows in your house) and some thermal barrier stuff. Spent like $20 total.
All i used was some waxed cardboard i had laying around, flashing tape (you use this stuff to seal around doors and windows in your house) and some thermal barrier stuff. Spent like $20 total.
05-31-2009, 01:17 AM
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Oh i also repositioned the neck on my water pump because the radiator hose was on the bottom of my intake tube, which would heat it up. Also went ahead and took out my thermostat today and it's running quite a bit cooler, so my IAT's might have come down even more.
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05-31-2009, 09:20 AM
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Plus, I have my 40k GVW tranny cooler on the way, a PT3200 stall in a 6,000 lb truck that sees 95% stop and go traffic and my A/C is always blasting. After i took my thermostat out my driving around town engine temps went from 210* to 190*(The 210 was with a 160* thermostat in it.). I live in Texas and have three big coolers/condenser in front of my radiator. So the air it does get has already been heated up a good amount.
If i ever notice the engine not getting up to operating temp when it cools down outside I'll throw a 160* in it. Takes a whole 10 min.
05-31-2009, 09:27 AM
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I've been working on these motors for about 10 years now so i know a thing or two about what they like. Motor in the SS looked brand new when i took it out. I would drive that thing 90 miles a day with a non lock up 5400 stall, th350 (no overdrive), no thermostat. 60 miles of that was all highway so 70 mph was about 3,500 rpms.