lowering IAT
10-18-2006, 08:08 PM
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lowering IAT
I ended up using some DEI header wrap on my K&N 77 series intake b/c I saw my IAT temps were fairly high (105'ish when hot). max IAT was 108. Only mods I had done on the motor was the headers, which lowered the engine bay temps over the stock exhaust setup.
after installing the wrap all around the metal intake plenum I logged my IAT's with hptuners and I was quite surprised when under the same temps, humidity, time of day, driving style the IAT stayed below 100 at idle after 10 minutes of idling with a/c on. normally it would have been about 107/108. while driving the IAT's went down to the lowest at 83 when normally that would have been about 95/98.
just thought i'd post up some info on something that worked to lower IAT's. the whole thing cost me about 35 bux including the DEI stainless lock ties which look nice installed. i'll post pix later tonight of before/after.
next step is to fabricate an aluminum airbox with intake scoop somewhat like the volant. I'm going to put firewall insulation on the airbox also to drop the temps more. thanks for reading.
after installing the wrap all around the metal intake plenum I logged my IAT's with hptuners and I was quite surprised when under the same temps, humidity, time of day, driving style the IAT stayed below 100 at idle after 10 minutes of idling with a/c on. normally it would have been about 107/108. while driving the IAT's went down to the lowest at 83 when normally that would have been about 95/98.
just thought i'd post up some info on something that worked to lower IAT's. the whole thing cost me about 35 bux including the DEI stainless lock ties which look nice installed. i'll post pix later tonight of before/after.
next step is to fabricate an aluminum airbox with intake scoop somewhat like the volant. I'm going to put firewall insulation on the airbox also to drop the temps more. thanks for reading.
10-18-2006, 09:29 PM
#3
Another thing that I found that works good for my intercooler piping is the insulated heat wrap used for industrial piping and heater ducting. I got some at Home Depot, its like a 1ft wide and 14ft long, about a 1/4in thick insulation with a reflecting coating on the outside. Just a though for you guys. Its cheap as well.
10-18-2006, 09:33 PM
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yeah I've been researching some different stuff, but I also have access to some marine spray-on insulation from work that I'm most likely going to be using. I'm just going to fabricate the intake box tomorrow at work (all tig welded aluminum 
) and spray the inside of the box with the insulation about 3/4" thick, keeping the outside nice and bling bling lol 
) and spray the inside of the box with the insulation about 3/4" thick, keeping the outside nice and bling bling lol
10-19-2006, 05:52 PM
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here's some pix of the mod.
I built the new airbox today at work,still needs to be fully welded out/cleaned up. I need to finish fabricating the removable top too. It's all T316L stainless steel
This evening I'm going to log the IAT again to see if there's a noticable gain, but after driving home from work (about 20 minutes of highway/city driving under hot temps) I noticed that the air filter was pretty cool considering the engine bay was real hot.
I'm still not sure if I want to make a scoop to go down towards the ground yet.
if you're reading this wondering why I built a different airbox than the one the K&N came with, it doesn't block all the hot engine air, the one I built you can see goes all the way down to the airbox mounts and doesn't let any hot air in, it's all sealed up.
I built the new airbox today at work,still needs to be fully welded out/cleaned up. I need to finish fabricating the removable top too. It's all T316L stainless steel
This evening I'm going to log the IAT again to see if there's a noticable gain, but after driving home from work (about 20 minutes of highway/city driving under hot temps) I noticed that the air filter was pretty cool considering the engine bay was real hot.
I'm still not sure if I want to make a scoop to go down towards the ground yet.
if you're reading this wondering why I built a different airbox than the one the K&N came with, it doesn't block all the hot engine air, the one I built you can see goes all the way down to the airbox mounts and doesn't let any hot air in, it's all sealed up.
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