I got around this weekend to installing some RS6 EGT’s in my S4. Reason for these is that with some *minor* changes to the software the full range of exhaust gas temperatures can be recorded via the ME7Logger instead of only seeing EGT’s display when something is going wrong, which is the case with the stock EGT sensors and stock S4 tune.
Up front a word of thanks to Jonathan, Johnny Bravo, for the suggestion to do this and pointing me in the right direction when I got started. At the tail end of the project Daz, DDillenger, was a *big* help in getting the software changes, something that required delving into TunerPro and XDF files in ways that I’d not done previously.
Here’s a look at the sensors fresh out of the box.
Audi RS6 EGT Sensors for use in my B5 S4
After the hardware install and updating the ECU software I wanted to confirm that everything was working as expected.
Here’s how the EGT’s varied over a drive.
And then a pull just shy of 6500 rpm with K03’s. This was the first pull to the 6000 rpm range that I have done since re-installing the AMD intercoolers.
The chart shows AFR, manifold boost pressure, and the new RS6 EGT sensor readings.
All in all the project went smoothly thanks to the help I had.
You’ve heard about the J-Mod. You’ve wondered, ‘how can I get the J-Mod?’ Now, finally the J-Mod is available.
When performance at all costs is your goal, J-Mod can help get you there.
Everyone knows that air flow to your motor is what makes POWER! What few realize is that pressure losses before the turbo impact performance two and a half times as much a post-turbo losses. The money you were saving for those big honking side mount IC’s, forget it, pre-turbo pressure losses are where it’s at, and that’s precisely what the J-Mod targets like a fat guy going for the Chocolate fountain at Golden Corral.
Extensive R&D
Born out of flow bench testing, the J-Mod delivers measurable gains in intake airflow. Did we mention that air flow is what makes POWER!
The Secret
The J-Mod development effort involved multiple specialized tools operated by dedicated craftsmen tirelessly working to uncork more POWER from your motor.
J-Mod transforms your car’s intake system from mild to wild and unleashes all of the ground pounding POWER you’ve dreamed about.
Achieving intake bliss
The cost for this service is reasonable for all of the POWER your S4 will gain. Contact us directly to discuss installment payment plans.
DIY
While not recommended, the following Do-It-Yourself section will give guidance to those desiring to try this at home.
Note: THIS PRODUCT IS FOR OFF ROAD USE ONLY.
Begin with your stock air box upper.
Unmodified Stock Airbox
Got a steak? Get a fork ’cause you could cut it on that edge. Air doesn’t like sharp edges, and neither does the J-Mod. After the J-Mod your intake will look like this, smooth as a babies bottom.
Post J-Mod
The entire turbulence generating edge is wiped out, leaving behind a smooth curve that guides airflow along to your awaiting turbocharger.
From the inside of the airbox you can see how thoroughly the J-Mod addresses intake deficiencies.
Intake Pre-Mod
The sharp edges above are wiped out, leaving behind a smooth path for the air to adhere allowing the airflow to remain laminar, minimizing intake losses and resulting in more POWER. Look below at the finished product.
After J-Mod view of inside the airbox.
The Real Deal
Out of curiosity I thought I’d smooth the inside edges of the airbox up near where the MAF housing fits. Smoother is better than sharp in this location so I took a file and sandpaper to the plastic and smoothed the edge out. As the flow bench testing showed, it did make a difference, but is so small (about 3/100’s of a psi) I doubt it matters – but hey it improves airflow and that’s a good enough claim for most after market performance products.
After installing the ECS Tuning/NewSouth Performance Power Gasket and putting the car back together I went out for a drive to log the temperature of the intake manifold.
The car had not been driven for a few days while the swap was taking place, so the IM was starting off at ambient temperature, but due to the car being in the garage and the drive taking place at night as the temperatures were falling the IM temperature starts higher than the outside ambient temperature with the gasket in place.
The results are unambiguous to me that the Power Gasket does little, if anything, to lower the temperature of the intake manifold at the point along the runner that I am recording temperature.
And then a pull just shy of 6500 rpm with K03’s. This was the first pull to the 6000 rpm range that I have done since re-installing the AMD intercoolers.
The chart shows AFR, manifold boost pressure, and the new RS6 EGT sensor readings.
