Am I going to screw up my YJ? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 01-04-2001, 04:35 PM
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Am I going to screw up my YJ?

I have a 95 YJ with a 2.5L with 31" tires. I heard that if I remove a restriction in the breather tube where it goes into the air cleaner, I will get a hp boost. I don't care about a gas mileage loss, but am I going to screw up anything else? Thanks ahead of time for your answers.

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post #2 of (permalink) Old 01-04-2001, 10:27 PM
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Re: Am I going to screw up my YJ?

Not sure what kind of restriction you're talking about. Only restriction between my air filter and breather tube on my '90 is the PCV filter. I've read about people putting in restrictions, or blocking it off, and they had oil spew from every seal on the engine. It needs that air!

If what you hear is true, there's still probably more effective ways of boosting your horsepower anyway.

DesertRat

90 YJ, 258 I6. Weber 32/36, the rest is stock Sahara.
post #3 of (permalink) Old 01-05-2001, 12:36 AM
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Re: Am I going to screw up my YJ?

hey grab i know what your talking about, i've done that there are actually 2 yes count them 2 restrictors no the intake box, one in the front and one in the other whole that goes to the trottle body, pulling them doesn't really do much, i did and really didn't notice much, but hey every little bit helps, also run a K&N filter, with it too have a good one!

(\/)ikey
1988 Wrangler Laredo 4.2L w/5spd Manual
1995 Wrangler 2.5L w/ 5spd / 31"BFG AT's
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post #4 of (permalink) Old 01-05-2001, 02:58 AM
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Re: Am I going to screw up my YJ?

I did the same thing when I had my wrangler with a 2.5. There was no noticable affect. I also had a K&N. I was able to run 32 MTs and go 80 mph on the freeway (not on grades, but flat to slight incline).

One side benefit was that there was a rectangular plate over a hole in the air cleaner box and I took it off. The Jeep actually sounded like there may have been an engine under the hood afterwards. The plate is before the filter btw.



-raymo
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258 4.0 Head/MPI,NV4500,D300,4.10's,HS9500
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post #5 of (permalink) Old 01-05-2001, 10:01 AM
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Re: Am I going to screw up my YJ?

I did that also on 4.0L. Hasn't hurt anything, I can't really tell if it helped. The K&N helped a lot though.

G'Luck

[img]/wwwthreads_images/icons/laugh.gif[/img] MNT [img]/wwwthreads_images/icons/laugh.gif[/img]
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post #6 of (permalink) Old 01-05-2001, 10:08 AM
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Re: Am I going to screw up my YJ?

I have done it to my Jeep also, and have noticed a slight difference in the amount of speed lost on big hills.[img]/wwwthreads_images/icons/smile.gif[/img]
Here is where I saw it.
http://www.concentric.net/~jman/jeepmods.html
Give it a try.[img]/wwwthreads_images/icons/wink.gif[/img]

GOD,GUNS & GUTS
MADE AMERICA GREAT
I VOTE TO KEEP ALL THREE
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post #7 of (permalink) Old 01-05-2001, 11:35 AM
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Re: Am I going to screw up my YJ?

I also removed it on my 4.0L, it seems like more power. If you read the write up in
Skellator link it some what makes sense about why they put it in there in the first place .
Believe it or Not..?

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