Someone on here was selling a mac intake for the 4.0. Was just wondering how this intake performs?

Or are there better intakes around? I see alot of people running the k&n intakes as well.

Just thought I would check cause I haven't heard much about Mac...

 

Of all the intakes available for the SOHC, the Mac intake is known to be the best one out there. Save for the Volant.

If you're interested, I've got a mac intake for sale too.

 

 

Does anyone have a picture of either kit installed?

 

i have a volant installed.. sorry to say it.. an intake is mental ************.. your not going to gain noticeable hp at all. you may see a slight .5mpg increase thats about it.

oh my volant is For sale as well.

 

I have a MAC cone filter on the stock intake tube. Makes a great woosh noise on hard acceleration....LOL To really see performance gains, a complete intake kit along with an aftermarket cat back exhaust system would be needed.

 

And a tune, and head work...

 

exactly.....

On a DD with no modifications.......it really does nothing for you. I got mine for cheap, and it's more of a mod list check more then anything....LOL

 

Have a MAC but took it off. It was really good at sucking large amounts of hot air from the engine compartment. Not sure if I'm going to put it back in or not. If you do the air silencer mod to the factory airbox, you'll get the same sound when you hit the gas. I'm currently running a Fram Airhog filter and the stock box with the silencer mod....intake air temps have gone way down.

 

so what he is saying is.. thats its pointless to do on our trucks.. and we are better of making power on something meant to go fast.

 

I totally believe it, but how did you determine the air temperature ?

 

The key is having a closed airbox. That's it. I'm running a Thunderbolt box w/ a cone filter inside and a custom steel tube going to my throttle body. I'm regularly seeing cold air(colder than ambient temp) via my scangauge. Stock intake I was seeing higher numbers with temps being hotter than outside air, even at 70mph. Not to mention my truck felt like it was choking especially after the Tbolt box install w/ the stock tube. No hard evidence to back myself up, just I've seen the numbers from the PCM.

 

Colder than ambient is physically impossible. Heat-transfer 101. Your MAF is reading temperature slightly off.

In saying this, its like measuring horsepower. My car on a DD Dyno measures 580-610whp, same car with same tune measures 650-680whp on a DJ Dyno. MAF log comparisons are a way of measuring improvement, not exact values.

 

Yeah I think he means same as ambient. colder than ambient isn't possible unless hes got some kind of refrigeration setup at his air filter lol

 

I have a Scangauge hooked up to check the intake temps. I'm sure it's not exact, but there was a major difference between the open filter and the stock box. The reality is, while the 4.0L is, as far as I'm concerned, a better than average powerplant, the intake for me was pointless when I had the trailer hooked up or was driving through a field to get to a fishing spot. The MAC pulled air like crazy, but I doubt it made any power difference and all the air it pulled was hot engine air.

 

My MAC intake on the 4.0L SOHC seemed to help, espesically with my high flow exhaust. I'm sure with a tuner it would be even better.