[ASH]

Finally got around to running the test with the intake pulling air in from the right side of the engine compartment (picture in gallery soon). I thought I would post the data since it is an interesting comparison against the stock intake. Outside air temps similiar to the run with the stock.

Time/Dist……Outside(F)…...Intake(F)……..Filter Box(F)………….…Notes
Start…………………31.8……………..… 30…………..…….32
2 min………………. 31………………....30.3……………..31.5. ...Idling, warmup
0.5 mile…………….31.2……………….30.5… ……….....30
2.4 mile…………….27.8……………….29.1… ………....28
4.7 mile…………….31.4……………….30.7… ………....34.2
6.4 mile…………….31………….....….32.3… ……………37……..Top of mountain
…………………………………………†¦â€¦â€¦â€¦â€¦â€¦â€¦â€¦.........45………Highest temp after mountain, coasting down other side
8.5 mile.............29.2...............31.5.......... ...39.4
10 mile..............31.4...............32.7......... .....40.5
............................................35.1.. ............42.5.........Highest temp @ 55mph
14 mi.................31.4...............39.7........ ......50.2..........In town, 20 mph
After this point, stopped in parking lot and let truck idle
30 sec...................................43.1........ ......65.3
1 min................32.8...............43.1........ ......73.6
1.5 min.............32.2...............47.5........... ....80
2 min................32.6...............51.9........ ......83.8
2.5 min.............32.6................58.3.......... ....87.4
Shut truck off and checked data later.
40 min...............35.................80........... .....131

Test with stock intake reprinted
Time/Dist……Outside(F)…...Intake(F)……..Filter Box(F)………….…Notes
Start…………………25……………..…25 …………..…….27.1
1 min………………. 25………………...25………………..26.4
4.7 mile…………….30………………..27.5…⠀¦â€¦â€¦....31
6.4 mile…………….28…………………28…†¦â€¦â€¦â€¦â€¦..33.6……..Top of mountain
…………………………………………†¦â€¦â€¦â€¦â€¦â€¦â€¦â€¦.........39………Highest temp after mountain, coasting down other side
8.5 mile.............29................29............. ...37.6
10 mile..............29................28............ ....38.7
.................................................. ...........42.........Highest temp @ 55mph
14 mi.................31...............31............ ....47..........In town, 20 mph
After this point, stopped in parking lot and let truck idle
30 sec............................................... ......59.5
1 min............................................... ........62.6
1.5 min............................................... .....66.6
2 min...............31.2..............35.5.......... ....70.2
2.5 min............31.2..............37.8............. .74.8
Shut truck off and checked data later.
25 min...................................46.......... ......112
?................................................. .............115............Max temp recorded

Test without intake tube installed reprinted:
Time/Dist……Outside(F)…...Intake(F)……..Filter Box(F)………….…Notes
Start…………………17……………..…13 …………..…….15.8.......2 min. warmup, no change
0.5 mile…………...18.2…………...15.5……†¦â€¦â€¦â€¦..19.2
2.4 mile…………….15.8………………15.1…⠀¦â€¦â€¦....17.8
4.7 mile…………….17.8……………….17.7… ………....22.1
6.4 mile…………….17.8…………………25… ……………..69……..Top of mountain
8.5 mile.............16................33.3........... ...57.2
10 mile..............17................38............ ....60
.................................................. ............65.........Highest temp @ 45mph
14 mi.................18...............44............ ....77..........In town, 20 mph
30 Min.……………...19………………..76…⠀¦â€¦â€¦.....117.......30 Minutes after shutdown

I was a little surprised with this data. I thought the intake temperatures would be a little higher with this last test run. While moving, they are comparable to the stock and K&N style, maybe a few degrees higher but not bad. However, when stopped and in slow moving traffic they rise much quicker. I was using this setup on saturday when I was doing some running and the results were similiar. After warmup, in town they spike but soon cool down when moving at +40 mph. So if you are running this type of setup, I would recommend a heat shield between the filter and the engine. I should have printed this data with another column showing temp difference between outside air and intake temp. Sorry, don't have the time right now. Next test I want to go back to stock setup and insulate the air fiter box and tube. Not sure when I'll get to that, but I'll post the data when I do.