I currently have a JDM chip (TST2 E25) JDM filter kit and a modified factory airbox. I have done some real time comparisons with both filters. Since the weather is so hot here in TX, the JDM filter kit takes in to much engine heat. So I opted to use and modify the factory airbox. What I did is cut a 4" hole in the bottom of the airbox closest to the engine. I then connected a 4" tube to this hole and ran it straight down between the lower radiator hose and the front core support out thru the fender cover in front of the tire. I then extended that tube to the front of the lower grill from the back side. So if you look past between the front tire and fender opening you can see the 4" tube hanging down. I also was able to do some real-time data comparisons between the two. Here are the numbers, decide for your self. Both test were done within an hour time frame.

OUTSIDE AIR TEMP/Humid= 95 degrees/99% humidity at 2:00PM

First JDM Airfilter kit:
Flow Meter Data: From 80MPH to WOT capturing data at 120MPH= 45lbs/min
Intake Air Temp: Steady Cruise at 80MPH= 130 +/- 3 degrees

Second Modified Factory Airbox:
Flow Meter Data: From 80MPH to WOT capturing data at 120MPH= 43lbs/min
Intake Air Temp: Steady Cruise at 80MPH= 100 +/- 2 degrees

------------------

• 2001 Lightning (WHITE)
• 2001 SuperCrew (RED)
• '90 Pro Street Mustang GT 1/4 7.50ET@185MPH.
• '23T Altered 1/4 7.90ET@170MPH.
  2001Bolt@group1320.com

http://www.group1320.com

 

2001Bolt,

Come check out www.haloclub.com !

------------------
The
<A HREF="http://www.haloclub.com" TARGET=_blank> </A>
99 Black Lightning
12.39 @ 113 MPH
in full street trim

 

2001Bolt,
Shhhh!!! You are giving away my secret that i tested with too!LOL I to have tested the stock airbox with a K/N filter against other open filter kits and i was noticeably faster with the stock airbox for E.T and M.P.H also!!

Matt

Silver01
12.85
109.40

 

Thats why you do one of these custom RTKILLA pipes and get the best of both worlds.




------------------
POWER SURGE PERFORMANCE RULES!!!

 

RTKILLA:

They should call you RTSTREETCLEANER....Lol. For the amount of driving I do that filter would be filthy. I wouldn't drive like that in the rain either.

2001Bolt:

What did you use to measure the mass air flow? Was this with some OBDII reader? Did you happen to measure the stock unmodified box?



------------------
Scott Weatherford
351W 1993 LX 11.9 @ 118MPH (Drag Radials)
Black 2001 Lightning 13.62 @ ??? MPH

WWW.Mustang351W.F150online.NET
WWW.Lightning.F150online.NET

 

351stang,
Yes, I have an ODBII Scanner. No, I did not get any data from the UNmodified airbox. But, after the modification, the whine of the supercharger sounds loud the same as with an aftermarket airfilter kit!!! So I know it was a major improvment!



------------------

• 2001 Lightning (WHITE)
• 2001 SuperCrew (RED)
• '90 Pro Street Mustang GT 1/4 7.50ET@185MPH.
• '23T Altered 1/4 7.90ET@170MPH.
  2001Bolt@group1320.com

http://www.group1320.com

 

Matt - Found the same results as you. I only run the open filter during the winter months when the air is cooler.

------------------
Rick
SVT Performance
Moderator 2nd Gen Lightnings

White 00 #2236 of 4966
My Mods & Web Page

<A HREF="http://a1060.g.akamai.net/f/1060/597/30minutes/www.zing.com/picture/p750d720296236005857c3b023627489c/fe7ef7ef.jpg" TARGET=_blank> </A>

 

I've always said that the stock airbox (modified) works as good or better than a cone filter but nobody wanted to hear it. Now that there is some hard data maybe people will listen.

I had to lose mine for the 90mm MAF but if I could find a 2001 box cheap it would be on there in a heartbeat.

------------------
Later,
Chuck
Black 00
Chuck's Lightning Page

 

See:

http://www.ncs-stl.com/Images/air1.jpg

http://www.ncs-stl.com/Images/air2.jpg

http://www.ncs-stl.com/Images/air3.jpg

I am running about 8 degrees over air temp on the highway. 25 degrees over in traffic. Does anyone know of a way to block off hot air from getting to the fender air inlets?

Andy

 

I checked out Chucks Lightning Page a couple of months ago when I first got my truck, I modifed my airbox close to what Chuck did,with a K&N flat filter and a 5"by6" square hole in the end of the box closest to the engine. Big difference in the sound of my supercharger and my ET times! Thanks Chuck!

------------------
2001 Red Lightning

 

With those that have an open filter element, cant you just take off the plastic shrowd that covers the front part of the engine bay. The air will come right through the grill, bathing the filter with cooler air.

------------------
Dave
'01 White
Alpine CDA-7875
MB Quarz
Rockford Fosgate Punch
JL ramair
accumulator valve kit

 

Mine can be closed for bad weather if needed.

[This message has been edited by KGM (edited 06-14-2001).]

 

Am I the only one that is using a 4" hole and tube? Most of all the pic's I have seen have been smaller than 4".

------------------

• 2001 Lightning (WHITE)
• 2001 SuperCrew (RED)
• '90 Pro Street Mustang GT 1/4 7.50ET@185MPH.
• '23T Altered 1/4 7.90ET@170MPH.
  2001Bolt@group1320.com

http://www.group1320.com

 

2001 Bolt...That is 4" might just be hard to tell in the pictures. Hate to brag but I believe I was first with this set up. Glad you guys like yours.

[This message has been edited by KGM (edited 06-14-2001).]

 

Makes not difference to me! You probably had your L before me. Up untill that point I really didn't take an interest.

------------------

• 2001 Lightning (WHITE)
• 2001 SuperCrew (RED)
• '90 Pro Street Mustang GT 1/4 7.50ET@185MPH.
• '23T Altered 1/4 7.90ET@170MPH.
  2001Bolt@group1320.com

http://www.group1320.com