Air intake
- Thread starter Burger
- Start date
SteelHeadz
Super Moderator
A larger T.body with the Cold air intake will make a difference.
bobcat481
New member
I'm convinced. When winter hit and temps dropped, I found myself down shifting less on some of the hills on the way to work. I can only assume this is from the colder air coming in. I've got one on my 7.3, but hadn't thought of one on my 4 banger gasser until now. Maybe even an intercooler?
phall92139
New member
This is always a big time debate issue. Is the stock air box really that bad? Are these really "cold" air intakes? Dry filter versus wet-oiled? And on and on.
My take on this has been:
My take on this has been:
- Forget Throttle Body Spacers.
- I did seem to gain about 1-1 1/2 mpg when I ran an AirAid.
- Better yet is the cowl air induction system I've since installed. It inducts outside ambient air (the air intake tube has been verified to be only 4^F. higher than ambient air temps). It got rid of the slight dead spot in the throttle at low end. I have slightly increased gas mileage while attaining better engine performance (6% uphill grades that used to drag me down to 60 mph or less I now do at 70-75 mph. And if you're running a hard top the cabin air is now filtered as an added bonus. Skinny Pedal Products
xjmarc
New member
I ran one on my XJ for a couple of months. Full length tube. All I noticed was a louder engine and if you go offroad I'd stay away from one. Mine would clog on a dry day and if mud was in the picture yikes. Mine came with a new box to protect the filter but mud finds it's way in. I run a k&n in the stock box now and it actually gives me better mpgs than the cold air kit.
phall92139
New member
What brand CAI did you run? I don't run in mud and I've heard of dust passing through the wet-oiled type filters such as on the AirAid but my intake tube was always clean. Now I've never tried to get 60,000 miles between cleaning the filter either, more like once or maybe twice a year.
jfrabat
New member
My CAI consists of a snorkel going through the stock box. I figure why take cold air from UNDER the hood when I can take fresh air from OUTSIDE with the added benefot from the ram effect when driving at highway speeds? I used a K&N filter in the stock box, but have since changed to a FRAM AirHogs one.
I do use a TBS, but to be honest, I am not so sure it really does anything. What DOES do a lot of difference is the 62mm TB (since my engine is a 4 banger, the stocker is something like 52mm or so, so the difference is drastic; much crisper Throttle response in the mid range!).
Bounty__Hunter
Super Moderator
Consider running a 62mm throttle body, and find a used stock airtube from a 4.0L TJ. The 4.0L TJ airtube is straight, no large air chambers like the 2.5L, and runs to the pass side of the engine, the cooler side. You can then add a conical filter to the end of this factory airtube. I've ran mud and water and never had a problem with it getting up to my filter.
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