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  #37  
Old 08-09-2011, 12:36 PM
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Re: Intake air temperature

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Originally Posted by Cherodude View Post
Interesting measurements, but can you feel any difference in performance through the old butt dyno?
Not really - sounds mean, though.
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  #38  
Old 08-09-2011, 12:40 PM
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Re: Intake air temperature

Measurements from this morning:

Ambient was 83.

IR on the filter was 117
IR on the tube was 135
IR on the silicone elbow was 120

IAT:
Min: 91.4
Max: 125.6
Mean: 108.5

So, it looks like it ran a little cooler this morning. Still measures above the OEM setup. I'll give it this week, but I'm thinking that the drop-in K&N will provide cooler air at a better flow rate.
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  #39  
Old 08-09-2011, 01:07 PM
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Re: Intake air temperature

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Originally Posted by robpp View Post
the OP has a wk2. its a short ram bwoody that is sucking in under hood air.

your wk1 bwoody is way low and does bring in colder air than found under the hood.
HAHAHA I noticed that after i posted...DUH! My bad, please ignore this lowly wk1 owner (with lower IAT readings )
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Old 08-10-2011, 08:21 AM
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Re: Intake air temperature

Measurements from last night and this morning:

Last night:
Ambient: 95
No IR temps
IAT: Min 96.8 Max 156.2 Avg 121.2

This AM:
Ambient: 75
IR: Filter: 117 Tube 135 Elbow: 120
IAT: Min 89.6 Max 145.4 Avg 115.7
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  #41  
Old 08-10-2011, 10:46 PM
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Re: Intake air temperature

This thread keeps getting more interesting. I'm impressed with all the hard work everyone had put in on this. As for me, I'm pretty happy with the K&N drop-in. You can definitely hear more air being sucked in to the engine, and I feel more comfortable knowing I'm not sucking in super hot HEMI air into my engine.

SO.... has anyone attempted to delete the silencer box while retaining the stock air box? might be able to get that same mean bwoody sound while sucking cold air.
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  #42  
Old 08-11-2011, 06:51 PM
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Re: Intake air temperature

The stock setup is going back on this weekend. The pre/post measurements have been enough for me to think it's a bad idea to leave this on long term.
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  #43  
Old 08-11-2011, 08:11 PM
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Re: Intake air temperature

Id wrap the tube or relocate the filter if possible/practical before throwing in the OEM intake.
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  #44  
Old 08-12-2011, 09:36 AM
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Re: Intake air temperature

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Originally Posted by elvisisdead View Post
The stock setup is going back on this weekend. The pre/post measurements have been enough for me to think it's a bad idea to leave this on long term.
So, is the silencer detachable? Or is it molded into the box?
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  #45  
Old 08-12-2011, 10:34 AM
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Have you thought of a two layer wrap using different materials? Base layer use traditional header wrap, top layer use a heat reflective wrap that I've noticed a lot of ricers are using under the hood.

Also as a thought, what about relocating the sensor (that's mounted on the tube) to say the end cap of the cone filter?


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  #46  
Old 08-12-2011, 09:07 PM
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Re: Intake air temperature

My whole problem is that for >$250, I shouldn't have to do a single frigging thing to it. No sensor moves, no header wrap, no moving a filter, no attaching it to the OEM airbox.

On the sensor - doesn't matter where I put it - I now know that >150 degree air is being sucked into it from the engine bay.

As far as wrapping it - I don't think it's going to do much. Yes - it will insulate the intatke and keep i from getting so hot. That's not the problem in my opinion. The problem is that it's not sucking in cool air - it's sucking in air from the engine bay.

Based on the curves of my measurements, when I'm cruising on the freeway, the temps drop to a reasonable level - usually <100. The problem comes in in stop and go and low speed driving. It seems to really heat up when you slow down or idle.

My assertion is that it is a product that was rushed to market somewhat irresponsibly. If all anyone is concerned about is flow rate, then it's great. However, as an earlier poster pointed out, this engine in a stock configuration is only consuming ~500 CFM. By bwoody's own measurements, the OEM intake can provide that.

Don't get me wrong, it sounds awesome. Personally, I don't think it's worth the elevated IAT for the cool sound, but that's a decision that everyone has to make for themselves.
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  #47  
Old 08-13-2011, 09:25 AM
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Re: Intake air temperature

I've also used my dashhawk to measure iat and aat with the stock airbox on my CRD equipped WK, thought I'd pass along my observation.

the stock setup on the CRD, and I bet the gas engines, pulls air from in front of the radiator and at city speeds (30-40 mph) the iat is within 5 degrees of the aat. the issue is when you turn on the air conditioning or go closer to highway speed (50-60mph), the iat jumps at least 10 degrees higher than aat. the hot air cannot pass thru the fins of the radiator fast enough and instead the hot air looks for another escape route, this time it goes to the air intake tube.
what i did was replace the stock air intake tube with a tube that goes right to the grille, now my iat is within 2-5 degrees of the aat all the time.
but how does this relate to CAI systems like the bwoody you ask?
well consider that removing the stock air intake tube and stock airbox now all that hot air that couldn't get through the radiator fins finds the next path of least resistance and is routed to the CAI system. you would need to install a hose from the right behind the grille to the CAI system and block off all other air that is routed to the CAI to see a "cold air" benefit.
other than breathing better than a stock air box (and the sound you then hear), the CAI system is not any cooler than a stock system IMO.
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  #48  
Old 08-13-2011, 06:20 PM
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Re: Intake air temperature

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Originally Posted by suzieque View Post
you would need to install a hose from the right behind the grille to the CAI system and block off all other air that is routed to the CAI to see a "cold air" benefit.
other than breathing better than a stock air box (and the sound you then hear), the CAI system is not any cooler than a stock system IMO.
The stock airbox on a WK2 does just that. It pulls air from above the grille, but still under the hood.
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