AEV_CUMMINS
Well-Known Member
I know that many people are skeptical about intakes and increasing airflow for power, but when tuned and you get down to the brass tax of things I know and enjoy the outcome from things like I just did on my truck a couple days ago.
(Reposted from a private conversation I am in and sent today, which may explain anyone wondering the way it was written).
Got the intake horn, boost tubes and diff cover installed. WOW it made a good difference, very noticeable. Wish I could tell you the difference of just the boost tubes since both the intake horn and boost tubes were installed at the same time. But the turbo spools up near instantly where before there was a definite lag and you could watch the gauge almost struggle to lift itself waiting for more RPM's. Then there is the power difference that I feel and I am able to track by the boost pressure and my butt dyno. Seems now at 12-17 LBS of boost, it has as much torque as it did pre-install at about 20-25 LBS of boost. The sound is also increased, the exhaust sound and intake is now balanced very well.
I am amazed at how the turbo spools so quickly even under light throttle and it feels like the rpms are quicker and easier to modulate with the pedal. The smoothness was the second thing I noticed.. at highway speed and from a dig, the pedal to what the rpms do are so much more inline now. You can audibly hear and feel a difference as well on throttle in terms of shake or lack-thereof. I have been running in tune 4 (+120HP) and it feels akin to tune 5 pre install.
EGT's are approx. 30-45 lower.. boost pressure applies more power at same LBS as pre install. L/100km's have went from 16.9 to 16.4 even with more time on the pedal. Easiest way to put it (which I cannot take credit for as I had the wife drive it after and she said) the truck feels lighter on its feet, less pedal and for less time on the pedal for the same response as before. It is difficult to explain but I intend to make a video as it is clear when watching boost pressures, rpm's and acceleration that there is a noticeable improvement.
I do believe that without the intake horn or without the boost tubes, it would not be as dramatic without doing the whole system as coupled with the CAI I also have. The whole intake system from hot side to cold side is enlarged and has better flow which means cooler/denser air. I know how it feels to lose power from hot air and high altitude and it is similar in the way of someone driving from a hot and high altitude to sea level with cool temp's after these were installed.
Pics installed incoming soon.
(Reposted from a private conversation I am in and sent today, which may explain anyone wondering the way it was written).
Got the intake horn, boost tubes and diff cover installed. WOW it made a good difference, very noticeable. Wish I could tell you the difference of just the boost tubes since both the intake horn and boost tubes were installed at the same time. But the turbo spools up near instantly where before there was a definite lag and you could watch the gauge almost struggle to lift itself waiting for more RPM's. Then there is the power difference that I feel and I am able to track by the boost pressure and my butt dyno. Seems now at 12-17 LBS of boost, it has as much torque as it did pre-install at about 20-25 LBS of boost. The sound is also increased, the exhaust sound and intake is now balanced very well.
I am amazed at how the turbo spools so quickly even under light throttle and it feels like the rpms are quicker and easier to modulate with the pedal. The smoothness was the second thing I noticed.. at highway speed and from a dig, the pedal to what the rpms do are so much more inline now. You can audibly hear and feel a difference as well on throttle in terms of shake or lack-thereof. I have been running in tune 4 (+120HP) and it feels akin to tune 5 pre install.
EGT's are approx. 30-45 lower.. boost pressure applies more power at same LBS as pre install. L/100km's have went from 16.9 to 16.4 even with more time on the pedal. Easiest way to put it (which I cannot take credit for as I had the wife drive it after and she said) the truck feels lighter on its feet, less pedal and for less time on the pedal for the same response as before. It is difficult to explain but I intend to make a video as it is clear when watching boost pressures, rpm's and acceleration that there is a noticeable improvement.
I do believe that without the intake horn or without the boost tubes, it would not be as dramatic without doing the whole system as coupled with the CAI I also have. The whole intake system from hot side to cold side is enlarged and has better flow which means cooler/denser air. I know how it feels to lose power from hot air and high altitude and it is similar in the way of someone driving from a hot and high altitude to sea level with cool temp's after these were installed.
Pics installed incoming soon.
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