After reading alot of posts about heatsoak with air box lid off, i did some testing today with my datalogger. I gathered a bunch of data so you can be the judge about this mod. Skip to the cliffnote if you are too lazy to read.

CAR: 2000 s2000 ap1

Car is in excellent condition, compression and leakdown is well within spec, no MIL/CEL.

Drivetrain Modifciation: Spoon Snorkel, Gutted airbox, K&N filter


The Test: I seperated the test into two parts, first is local and the second part is freeway, the outside temp. in my town is 72F(according to Yahoo Weather), i have to do the testing at night since the traffic around here sucks major balls during daytime. The car is well warmed up and cool down time is provided between runs. All unit in F.


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Test 1: Local Driving(0-40mph in light traffic)

With Lid ON

Air Temp: 131-149
Coolant Temp: 188-203

Special note: I did a run with redline/vtec until 40mph result:

Air Temp: 129-145
Coolant Temp: 194-203


With Lid OFF

Air Temp: 143-150
Coolant Temp: 192-213

Special note: Idle at 149F after first minute of stoppage.





Test 2: Freeway/Highway Driving(65-80mph with light traffic)


With Lid ON

Air Temp: 111-140
Coolant Temp: 183-194

Special note: Achieved 111F at 80mph


With Lid OFF

Air Temp: 122-149
Coolant Temp: 184-206

Special note: Achieved 122F at 80mph

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The Verdict

The testing shows lower air temperture is acheived consistently and repeatedly with the air box lid on, however i make no claims about throttle response since i do not have a dyno or G-tech meter handy.

CLIFFNOTE: Lid on = cooler

If you guys want to do some testing with CAI, Vented hood, different filter, air box mod, we can do it in local meet.

Comment, opinion is always welcome

 

Only one comment comes to mind:

Cool!

 

SpitfireS, you forgot...SWEET!

i call BS on my "sweet"

I think I lied as I really wanted to say...AWESOME!

i need sleep.

 

btw that's a really detailed report of your test. good job. what time during the day was this? did the weather cool off?

 

if you do this test with the spugen heat shield, then

 

Great test! Thanks for the info.

However, did you conduct the "lid on" test with the spoon snorkel in place? It'd be interesting to see whether the temps were cooler due to the lid being on, rather than because of the spoon snorkel.