Induct Performance included their Mk7 air intake system along with a Turbo Inlet Pipe that they provided in support of the TIP Ranking tests.
This intake is the first open style system that has been flow tested here with the PTS flow bench. The first configuration to be tested was with just the intake pipe and filter and an adapter that has been used with other intakes to connect the intake to the flowbench. The adapter simulates the opening of the stock size turbo inlet elbow.
The inlet pipe & filter flowed 596 CFM @ 25″ of H2O. This is a departure from standard test procedures that usually entail testing at 28″ of H2O. The change was made due to the flow bench having a maximum airflow capacity of 600 CFM, and the Induct intake only reached 25″ of depression when the maximum test airflow was reached.
Conversion to other test pressures is possible through calculation. With the test having come close to the standard test pressure of 28″, the conversion, which is an extrapolation, should be fairly close to what would have been achieved if a measurement could have been made.
Adjusting the result to 28″ of H2O produces the value shown on the chart below:
The Induct air intake flows approximately 30% more air at 28″ of H20 than the stock Mk7 GTI airbox.
The next test involved attaching the Induct turbo inlet pipe to the intake and attaching the assembly to the flow bench with the printed adapter that models the turbocharger compressor housing inlet.
Results with this arrangement are shown below:
As expected, the addition of the inlet elbow leads to a reduction in airflow through the intake. Compared to a stock setup the Induct Performance parts yield a seventeen percent gain in airflow.
Note: The APR intake results are with a silicone adapter instead of the 3D printed adapter. It is probable that the APR results would be slightly less than as shown if the printed adapter had been used.
The Induct Performance intake system produces clear gains in airflow over the stock Mk7 GTI intake components when measured with a flow bench.
11 thoughts on “Induct Performance Intake System Flow Test”
Hi, I am a member of the MK7 Forumn, user name MK7-K. First, thanks for doing all the testing so far. I am in the market for a new intake ans was wondering if you can point me to a few intakes to choose from. I am currently running an Autotech and I this based on what I’ve read so far that cone filers flow better than panel filters. I did read this on multiple car platforms. The reason I want to upgrade is that I just went IS38 APR Stage III. I do have the grill cutout and also 2slowvw’s grill that he sells, do not have the ramp. I think there is an intake that flows better than what I currently run.
Thanks for any help in advance.
Hi Chuck, take a look at some of the intakes that I have been testing, the summary is on this page.
A few well chosen modifications to the stock air intake can get it quite close to the performance of the aftermarket intakes. You probably can use what you already have and assess the filter and the inlet elbow you are using to see if upgrading those could help produce a little more performance.
Hi Jeff, thanks for getting back to me. Yes, I have assessed the Autotech and swapped out the filter to the AFE dry filter and have been think about changing the piping going from the box to the TIP. I forgot to mention that I have a cast APR TIP, did that when I went APR Stage II.
I keep think back to when I had my MK6. The was a guy that made and sold an intake called Modshack, he was big in the Audi TT world and built similar intakes for those cars. It was made, (if you can believe this) from a new 1 gallon paint can, 6 layers of insulation inside, bullet shaped filter(metal cap in front of filter) and all the brackets to attach it to the front grill. He would paint it any color. This filter flowed better than the APR filters, it was more direct, like straight in, no box to interrupt the flow. It was very popular on the MK6 forum. You can actually feel better throttle response. That’s what I’m looking for, enclosed and straight in. To me, the box interrupts the flow. Anyways, I am rambling on here. I’ll think and try to figure out what I want to do. Your thoughs are appreciated.
I compared a stock intake with aftermarket and noticed improved response with the aftermarket. I went and looked at the datalogs and there was zero difference in the response time of boost onset, but I believed the aftermarket was better so at least I felt good about using the parts.
There’s little reason an aftermarket intake would improve throttle response. The restriction that is relieved by the aftermarket parts doesn’t become significant until a large amount of air is flowing, which is not the condition when first getting on the throttle. If the restriction with the stock part was significant enough to alter throttle response it would be very apparent under full boost and high engine speed when airflow increases by about an order of magnitude.
Thanks for the help and answering my questions. I think I’m going to stick with what I have, maybe add the ramp that 2slowvw sell just to complete my setup. I just have the grill piece he sells.
P.S. Keep up the good work
Thanks Chuck. That ramp is on my list to test out, I’m working on getting the correct sensors in place so I can evaluate if it makes any difference.
That would be a great test for the community. I’ll hold off buying it for now. Also, I reread your test on the Racingline VWR R600 and may go with that. we’ll see.
I’ll be selling the R600 setup when I finish testing if you are interested in a lightly used setup. I need to recoup enough to fund future tests.
I would be, if it has the secondary injection port. How much are you asking and does it include the Turbo inlet hose?
It doesn’t have the SAI port. Looks like ECS also sells the standalone SAI filter for $11.
How much are you asking and does it include the Turbo inlet hose?
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