Any 6637 Modders..help?
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Posting Guru
Joined: Oct 2007
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From: Catawissa, Pa
Any 6637 Modders..help?
hey guys...
i just did the 6637 mod. i never had a stock air box, the PO had a cheapo AZ filter on it. i just have one problem...it seems like the inside of the hood is hitting the filter. is this common? i used a piece of 4" ehaust to couple the tube to the filter. i just cant get it any lower. seems to run WAY better now that it is breathing with out asthma. thanks for any assistance
chris
i just did the 6637 mod. i never had a stock air box, the PO had a cheapo AZ filter on it. i just have one problem...it seems like the inside of the hood is hitting the filter. is this common? i used a piece of 4" ehaust to couple the tube to the filter. i just cant get it any lower. seems to run WAY better now that it is breathing with out asthma. thanks for any assistance
chris
Fleet Owner
Joined: Mar 2007
Posts: 28,298
Likes: 6
From: BLT, MN
It seems to vary somewhat from truck to truck. Mine was hitting for about 2 1/2 years until we cut the back part of my airbox out recently. Now it drops down away from the hood. I would not worry about it. You are all good if you want to leave it that way.
Senior User
Joined: Mar 2001
Posts: 497
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From: KC MO
hey guys...
i just did the 6637 mod. i never had a stock air box, the PO had a cheapo AZ filter on it. i just have one problem...it seems like the inside of the hood is hitting the filter. is this common? i used a piece of 4" ehaust to couple the tube to the filter. i just cant get it any lower. seems to run WAY better now that it is breathing with out asthma. thanks for any assistance
chris
i just did the 6637 mod. i never had a stock air box, the PO had a cheapo AZ filter on it. i just have one problem...it seems like the inside of the hood is hitting the filter. is this common? i used a piece of 4" ehaust to couple the tube to the filter. i just cant get it any lower. seems to run WAY better now that it is breathing with out asthma. thanks for any assistance
chris
https://www.ford-trucks.com/forums/8...i-install.html
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
I got rid of the stock lower airbox/battery tray altogether and installed a passenger side battery tray on the driver's side. I had to re-drill some holes to make it work, but it works great and looks factory. No more filter rubbing/hitting the hood.
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Hotshot
Joined: Jul 2003
Posts: 12,177
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From: Newport, WA
My early bird had the late model intake update on it so I didn't have that option.
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
This guy didn't compare the stock filter setup to the 6637 (Tymar = 6637), but you can see how it compared to an open tube and an aFe on the dyno:
Ok I ran the dyno today with the Tymar, AFE, and open element. Wanted to know for myself what was what so here are the specs:
3 runs with the tymar netted:
1st run on #2=413.7rwhp
2nd run on No2=481.1rwhp
3rd run on No2=481.3rwhp
3 runs with AFE stage2 netted:
1st run on #2=407.0rwhp
2nd run on No2=473.1rwhp
3rd run on No2=472.9rwhp
3 runs with open element netted:
1st run on #2=424.9rwhp
2nd run on No2=493.1rwhp
3rd run on No2=492.3rwhp
Ok I ran the dyno today with the Tymar, AFE, and open element. Wanted to know for myself what was what so here are the specs:
3 runs with the tymar netted:
1st run on #2=413.7rwhp
2nd run on No2=481.1rwhp
3rd run on No2=481.3rwhp
3 runs with AFE stage2 netted:
1st run on #2=407.0rwhp
2nd run on No2=473.1rwhp
3rd run on No2=472.9rwhp
3 runs with open element netted:
1st run on #2=424.9rwhp
2nd run on No2=493.1rwhp
3rd run on No2=492.3rwhp
Lead Driver
Joined: Dec 2006
Posts: 7,092
Likes: 145
From: San Diego, CA
I had to use my Dremel and hack up the intake box/battery tray. Once the filter sat lower I rotated the intake tube elbow just a little bit up and now it sits nice and snug so I don't have to worry about it bouncing around when I'm off-roading.