CAI vs Stock w/ drop in K&N
09-16-2010, 12:42 AM
#21
Deuce426, u said "All I run is the airraid tube with the stock box, along with a Aem filter. The stock airbox will supply enough air, and the only restrictive part is the tube due to its silencing baffles. You can always open up the stock box more if you'd like. Like it was said earlier, you wont really notice a difference in performance between any of the intakes though, especially in our trucks."
Do u think cars are that dramatic of a difference, then?
I'll say the gradual curve helped to a greater extent than the physical tube size. Altho that prolly did too.
I actually was gonna do this long before I saw this (get a CAI for an e-fan truck), but the Radix doesn't make it necessary. So... I guess the Radix saved me some money.
Corey, whatdaya mean, here's my AEM? That's an AIRAID. It even says so. 
And some more pics of an AIRAID. lol
WOW! This is eye-opening. I'm starting to wonder if my tuner tuned for my CAI. So what happens to timing when ram air takes effect? Would it pull timing?
Do u think cars are that dramatic of a difference, then?
I will say this about CAI.... A few weeks ago i helped a buddy tune his truck with a wideband... Everything was dialed in nicely... At the time he had a volant CAI.... He then switched to a 07+ AEM CAI the tube has a nice gradual curve and is HUGE compared to the volant, also the filter is alot bigger... At the track is was running lean by 7% across the board, and the only thing that changed was the CAI... These were within weeks of each other and roughly the same temps... So 7% difference, i am not sure the exact airflow differences, but since he was lean that means he was getting more air in... More air = POWER...
Just my thoughts.... I would not have believed it but i was there and saw the logs...
Just my thoughts.... I would not have believed it but i was there and saw the logs...
I actually was gonna do this long before I saw this (get a CAI for an e-fan truck), but the Radix doesn't make it necessary. So... I guess the Radix saved me some money.
And some more pics of an AIRAID. lol
Something else Corey forgot to mention is when he was helping me tune(well he tuned it actually ) with my volant would take half a mile to get the IATs to drop down close to ambient from the 115-120 it would get to sitting at a light. With an open element(such as K&N or AEM) your IATs are going to drop faster which will keep the computer from pulling that extra degree of timing. May not conern many but its enough for me to plan on replacing my volant once I get some other things taken care of.
) with my volant would take half a mile to get the IATs to drop down close to ambient from the 115-120 it would get to sitting at a light. With an open element(such as K&N or AEM) your IATs are going to drop faster which will keep the computer from pulling that extra degree of timing. May not conern many but its enough for me to plan on replacing my volant once I get some other things taken care of.
09-16-2010, 06:57 AM
#24
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But I live on a tropical island where it is warm/hot all the time. Two seasons...raining and not raining soo much. LOL
Air Force still. I have 4.5 years left until I can retire...then on to my second career (whatever that is)
09-16-2010, 07:48 AM
#25
Ramair will make it cool off faster. Ill have to look at my tune later on and see at what IAT is starts pulling timing. At one column it was like half a degree, then the next was a degree then I think 2 degrees but Ill have to look it was a few weeks ago that I was messing with that. The biggest thing I think is the box acts like a heat sink and retains the heat and the MAF is directly bolted to the box to conduct that heat to the IAT sensor too. Here soon its not going to matter since Ill be exceeding the MAF and doing away with it but for how much the volant costs its not worth it IMO.
09-16-2010, 10:22 AM
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on my old crew cab I was running originally with an airaid cai, it was open to the engine heat. Wheatley did a tune for me and the intake temps were pretty high and this was with the plastic airaid tube. I swapped back to the stock intake box with a true-flow iar filter and an airaid intake tube and the temps went down considerably. I also modded the stock box slightly for a little more airflow.
I didn't notice any loss in power by going to the stock box or any gains really, but the truck actually felt like it ran smoother/better. Not saying power-wise necessarily, it just felt better in some way.
All I ever run now is the stock box(modded) drop-in filter and an airaid tube. for the performance gain difference versus the price its good enough for me.
I didn't notice any loss in power by going to the stock box or any gains really, but the truck actually felt like it ran smoother/better. Not saying power-wise necessarily, it just felt better in some way.
All I ever run now is the stock box(modded) drop-in filter and an airaid tube. for the performance gain difference versus the price its good enough for me.
09-16-2010, 12:10 PM
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I will say this about CAI.... A few weeks ago i helped a buddy tune his truck with a wideband... Everything was dialed in nicely... At the time he had a volant CAI.... He then switched to a 07+ AEM CAI the tube has a nice gradual curve and is HUGE compared to the volant, also the filter is alot bigger... At the track is was running lean by 7% across the board, and the only thing that changed was the CAI... These were within weeks of each other and roughly the same temps... So 7% difference, i am not sure the exact airflow differences, but since he was lean that means he was getting more air in... More air = POWER...
Just my thoughts.... I would not have believed it but i was there and saw the logs...
Just my thoughts.... I would not have believed it but i was there and saw the logs...
Just like how different D/A's yeild different track results..
From my personal tunning experience, the AEM colled down much quicker than the volant, and the volant stayed 3-4* above ambient where the AEM was 1* above ambient. the KNN showed similar results to the volant but it took longer to cool down.
09-16-2010, 01:27 PM
#29
DA and temp could also have this big of a difference when it comes to the tuen being off on a day to day basis. The only way to verify this effect is by doing back to back comparisons on days with the same D/A, humidity, temp and so on...
Just like how different D/A's yeild different track results..
From my personal tunning experience, the AEM colled down much quicker than the volant, and the volant stayed 3-4* above ambient where the AEM was 1* above ambient. the KNN showed similar results to the volant but it took longer to cool down.
Just like how different D/A's yeild different track results..
From my personal tunning experience, the AEM colled down much quicker than the volant, and the volant stayed 3-4* above ambient where the AEM was 1* above ambient. the KNN showed similar results to the volant but it took longer to cool down.
Like i said the days were similar in temp and it was summer so the humidity was nothing, cause it was during our dry season... so i bet the DA was close....
09-16-2010, 03:02 PM
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So a lot of people are running the stock box (modded a little), drop in filter, and an Airraid tube. I like the look of the stock box. The less people know whatcha got, the better.