04-26-2010, 07:43 AM | #1 |
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Go drive your car 25 miles, get out open hood touch air intake tube!!
Ok now you are saying I am nuts. Well I can actually go drive my car for over a half hour and lay my hand on my CAI tube. How many of you without a CAI Industries air intake can do that?
I found that very intererting that I touch my Vararam after driving my car and would pull my hand back from how hot it was. So now I am touching CAI's metal pipe and it is just warm to the touch. To me that says my car is getting cooler air. I tried this on a few other air intakes and the stock box and hotter than all get out. You give it a try. I think CAI is onto something. Also can touch my MAF housing and it is cool. And many intakes it is hot also. |
04-26-2010, 07:54 AM | #2 |
Camaro SL,UTs
Drives: 2010 Camaro SS/RS #16429 Join Date: Sep 2006
Location: South Jordan, UT
Posts: 7,358
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My Airaid is the same. In fact I've gone as far as popping the hood and taken the temperature with an infared temp gun and the box area where my filter sits was forty degrees cooler than the engine bay.
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04-26-2010, 08:23 AM | #3 |
Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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I can do the same with my Halltech. I find it interesting that VR boasts ambient or in some threads, subambient IAT's, yet you can't touch the unit after 25miles of driving. I think your test is somewhat misleading too. Most if not all CAI's shouldn't be HOT if you come right in from driving and pop the hood. A better test would be to come in from driving, let the car idle for 2-3 min, THEN touch it. That would simulate sitting at a stoplight or in the staging lanes. One member did this with thermal couplings in the intake tube and in the airbox. At cruise, the intake tube temps were within 10-15 degrees of the airbox temps (might have been less). While sitting at a real stoplight, the temps climbed VERY quickly. This was with the OEM setup so there was no comparison with other CAI's. All CAI's will heat up, it's just a matter of how fast. This and how well the intake flows should be defining factors of a good CAI.
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2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
04-26-2010, 08:49 AM | #4 |
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I was just amazed at how hot the plastic is of the stock and the vararam and the metal is much cooler on the CAI. Did the same with all 3 of mine. Other I just touched in the parking lots at the fest.
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04-26-2010, 08:52 AM | #5 |
Driver of the Blue Demon
Drives: '15 Jeep Grand Cherokee Limited Join Date: Jan 2010
Location: Westfield, MA
Posts: 2,550
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i got the injen system...i could touch my pipe after 2 hours of driving yesterday
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04-26-2010, 08:57 AM | #6 |
Account Suspended
Drives: 2010 Challenger R/T;2011 Mustang GT Join Date: Jan 2010
Location: Texas
Posts: 2,105
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I have to wonder how much heat is being transferred into the Vararam from the radiator. That seems to be the real differentiator.
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04-26-2010, 09:01 AM | #7 |
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Same here with my ADM Race Intake. Warm to the touch in hotter weather and ice cold to the touch in winter.
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04-26-2010, 09:11 AM | #8 | ||
Go Blue!!!!!
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Quote:
Quote:
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04-26-2010, 09:42 AM | #9 |
Petro-sexual
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I was wondering about that with the Vararam... In traffic, I'd think that thing would just be soaking up the hot air. I do like the way it seems like it should be grabbing pressurized air, at speed, but I see where the concern is. I'm still undecided which intake I like better.
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04-26-2010, 09:47 AM | #10 |
SST...
Drives: SST Camaro 2010 Join Date: Oct 2008
Location: East Coast of Florida
Posts: 5,927
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Choose the one with the hole that goes all the way through...lol
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04-26-2010, 09:57 AM | #11 |
Drives: '15 Z06, '01 NBM SS, '97 SS Join Date: May 2009
Location: Rio Rancho, NM
Posts: 12,170
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04-26-2010, 01:32 PM | #12 |
Drives: 2SS/RS - Black - GFX Join Date: Nov 2008
Location: B'ham, Alabama
Posts: 2,458
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anybody put a thermocouple in it and log data?
there is a temperature gradient in the plastic... the temperature of the mid-stream air is what is important. The NewEra OTR CAI had the lowest intake temps in the Jannetty CAI tests.
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Ordered: 10-13-08
Built: 3-30-09 (#1691) Recieved: 6-12-09 Blacked out, Cammed (Lunati Voodoo 233/245, .578/.598 @114°, +4°), ARH LTs, VR OTR CAI, Cutouts, and lots of other fun mods. Last edited by Bell040; 04-26-2010 at 09:49 PM. |
04-26-2010, 06:20 PM | #13 |
Drives: 2SS/RS LS3 Join Date: Sep 2009
Location: Morehead, KY
Posts: 77
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Hmm...I dont have a CAI to do the test with, but since aluminum is a better conductor than plastic....seems like it would make a difference where the heat is coming from. If the VR pulls in radiator heat then that is an obvious problem, but I wonder what would happen if you compared two roughly identical CAI's, one with a plastic tube and one with aluminum.
If the heat comes from within the engine compartment soaking into the tube then it seems like plastic would be the better material to make it out of since less heat would be transferred to the air within the pipe. Something you might also think about is that if one CAI pipe material feels cooler to the touch, then there is less heat retained in that material, which could mean that the heat was transferred to the cooler intake air flowing through the inside of the pipe. For the drag racing people that could be a good thing (the pipe could cool down faster between runs or whatever), but if you are just the average joe it might be worse...?? |
04-26-2010, 10:48 PM | #14 |
Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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Those temps were taken with a fan blowing onto the front of the car. They didn't post IAT's at idle, with no air on the front. Would be interesting to see what they are and how fast they heat up at a stoplight. Unless there is a BIG difference in temps between units, I don't see a major benefit there. How much more air or timing are you going to get between a car that sees a 0-2 degree delta vs one that has 2-5 degree delta.
__________________
2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
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