post #1 of Old 03-21-2002, 09:00 PM Thread Starter
Bulletproofcj7
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Join Date: Jan 2002
Location: Western Massachusetts
Posts: 286
more power from yj?

Has anyone removed the reducer from inside the air tube on their 4.0l for increased power? just read about the mod in a magazine and was wondering if it had any effect, good or bad?


1982 cj7. Frame off. shell valley kevlar body, stainless hinges, Bestop seats and supertop, KC titanium lights, Homemade swing out tire carrier with spare front wheel bearings/hub, Built 304,DUI,Edelbrock shorty headers with dual stainless 21/2 tubes into incynerator cans 21/4 dumped out the back,Edelbrock 600cfm, performer intake and cam, Borgeson lower column, Centerforce clutch, NV-4500, Dana 300 w/custom built twin stick, Homade 1/4" steel skid plate, 2.5 soft ride w/ 1" shackle lift, 33x12.5 mtr's. Stainless fuel and brake lines, Braided hoses. more...
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post #2 of Old 03-22-2002, 11:30 AM
Jeepin-J
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Join Date: Oct 2001
Location: Middletown, CT
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I learned that from www.jeepyj.net and I can feel the differience . Also I still get the same crappy miles per gallon. Only thing is I have a 2.5l not a 4.0l.

CT Jeeper

95YJ Rio Grande
2 Daylighters, 2.5l auto, 29's, 1' body, both air-restrictors removed, and a whole lot of mud.
Saving up for RC lift!
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post #3 of Old 03-22-2002, 11:31 AM
Dan's YJ
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Join Date: Feb 2002
Location: Lompoc Calif
Posts: 233
I removed mine and it didn't feel any different. So I put it back.

1994 YJ 4.0

1994 Bronco HD
Warn 8000
2"lift, 32x12.50
Locked
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post #4 of Old 03-22-2002, 02:44 PM
GREGDOG95YJ
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Join Date: Jul 2001
Location: BIRMINGHAM, ALABAMA
Posts: 270
I removed the one in the neck of the air box and the one in the front of the air box and I felt a difference in power

Jason Gregory
95 yj Rio Grande 2.5L
31" BFG MUDS, 1"BL,2" homemade spring lift, 150W KC'S, KN Filter, both air restricters gone, track bars gone, quick discos, & high flow cat

"just like all addicts my need to satisfy my addiction far exceeds my wallet!!"
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