The BoostedBenz Stage 5 car goes to the Texas Mile
This car is the culmination of a host of performance parts that were all chosen to complement each other, from companies and people at the pinnacle of their game.
With specific hardware chosen for proven performance mated to software from the ECU tuning genius that is ECC Slav out of Toronto Canada and EDOKs TCU tune, the car put down impressive times, driving from and to Houston before and after the event.
This represents a Stage 5 build based on a five stage BoostedBenz Bundle which enables enthusiasts to build up to this level of performance in a sequential manner, using hardware that has been developed and proven to perform, with future proof capability that the parts you install today will still be applicable as you upgrade your hardware. https://www.boostedbenz.com/pages/boosted-benz-bundles
The hardware was installed under the careful tutelage of Matt Chen at Legacy Motorworks in Houston Texas. His team worked countless long hours to get the car ready for the mile. They deserve everything good to come their way.
Hardware for the build consisted of:
BlackBoost Intake
BlackBoost Turbos
BlackBoost Clutch Package
Xtreme-DI HPFP (+60% pumps)
Custom LPFP complements of Matt Chen at Legacy
ProMeth Kit
EDOK TCU
ECC_Slav ECC Tuned (formerly EC Canada) ECU #teamSlav
The car finally got onto the dyno last Friday, where #ECCTuned Slav was given free reign to dial it in. This was the first time using the XDI +60% pumps mated to the BlackBoost 950 turbos, and Slav did not disappoint. It took only 2 revisions to a base map to tweak the tune for the 1 Mile run, giving careful attention to ensure the hardware and tune was optimized for the rigors of sustained boost over a mile. Timing, fuel flow, knock retard, injector duty cycle plus a host of other items were carefully monitored and tweaked to ensure the safest tune for the initial run down the mile.
Pics from the dyno tuning session....
Matt Chen Prepping for the dyno baseline
anyone want to roast marsh mellows?
902 awhp and 873 awtq
Look at that torque profile! .... that's not a torque curve, that's a torque table! These turbos, coupled with Slavs tuning knowledge of the platform, showcase how these BB 950 turbos are the perfect complement to the 5.5L engine... show me a better aftermarket torque curve.... I'll wait.
Jesse drove from Legacy Motorworks in Houston direct to Beeville that evening for the Texas Mile event.
After buttoning up some last minute items and a quick trip to Corpus Christi to readapt the BB Clutch's it was time to hit the track.
Once at the track we logged every run and Slav tweaked the file to add additional performance into the tune. Overall we performed three additional tweaks to the tune culminating in the run below.
Given the conditions at the track, the car performed flawlessly.
With 90 degree temps, a DA of 1600 and a 20 mph headwind, the car still ran a blisteringly fast 192.5 mph in the standing mile.
I've added Jesse's in car video to provide a nice little ride along for those who wish to live vicariously through him.....
We really need to find a better mount...
Notice how soft the launch was but also notice the trap at the quarter... this is a 9 second car.
The Texas Mile is truly a fraternity of speed freaks. I see the same people every event.
When these guys, who typically run 200mph in the events are struggling to hit 190mph, come over to congratulate you and look at the car, you know your doing something right.
One happy customer....
Success!
Boosted Benz in conjunction with Black Boost, XDI and ECC representing the tuning community at the event.
Now we need to put the car back on the dyno to get a new baseline run... we've added a few psi boost and additional timing to the file based on the logs from the event over the sustained 1 mile runs.
This car now has a tune we are comfortable will easily handle the demands of normal street driving, the occasional 60-130 blast and trips down the quarter without having any potential fueling issues.
Thanks again to everyone who was involved in this build and who provided technical oversite and assistance. You all know who you are. I'm proud to be a member of #teamSlav #ECCtuned
Last edited by brutus_tx; Mar 28, 2022 at 02:46 PM. Reason: added in-car video
Pics from the dyno tuning session....
902 awhp and 873 awtq
Look at that torque profile! .... that's not a torque curve, that's a torque table! These turbos, coupled with Slavs tuning knowledge of the platform, showcase how these BB 950 turbos are the perfect complement to the 5.5L engine... show me a better aftermarket torque curve.... I'll wait.
Street/track numbers are most important, but what type of dyno was used? I see the pop-up box says 902 whp. What do the numbers below represent (that say 803 whp)? What correction factor is used for the 902?




Street/track numbers are most important, but what type of dyno was used? I see the pop-up box says 902 whp. What do the numbers below represent (that say 803 whp)? What correction factor is used for the 902?
I would have preferred a dynojet as well, but this is what we were able to work with.
The raw numbers on the bottom were from the mustang dyno direct. The graph and numbers are output to emulate a dynojet dyno. It was an option to display and set up by the shop. Correction factor was ~12%, which I've been told is conservative.
We are going to go back to this dyno later in the week with the final Texas Mile tune to see what the numbers look like, relatively speaking, to see what gains were made in the tune..
The next step will be to try and get it on my friends dynojet out in Sealy later in the year to compare against previous runs on that dyno.
Last edited by brutus_tx; Apr 6, 2022 at 10:39 AM. Reason: typo
In the staging lane waiting to do the first pass
Lined up to race with the Boosted Benz trailer in the background
Last edited by boostedbenz.com; Mar 28, 2022 at 06:31 PM.
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That looks like it is with the stock exhaust (aka - all the cats) and heavy stock wheels as well (i.e., not the lighter forged stock wheels or an aftermarket set).
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As you noted the car is running on stock tires and rims, and just as important, full interior... no race seats or gutted interior in this bad boy.
One important consideration though.... this is a 1 mile event.
Unlike a quarter mile where weight savings give tangible improvements, at a Mile event, its driven by speed, not time. So weight is less of a consideration. Its all about power and the ability to push these shoe boxes through the air.
This car makes ample power, as evidence by the trap speed given the head wind.
Last edited by billvp218; Apr 4, 2022 at 10:18 PM.
I never experienced this myself fortunately, as I have a EDOK TCU tune which increases clamping force, etc. I am at 840awtq and the stock clutches have held fine on my car with my TCU tune. My torque comes in a little more gently then some of the other tunes out there though, so this should help as well.
Jesse is running the same TCU tune as I am, the EDOK tune, and hadn't experienced any clutch slip with his car either but we knew to expect north of 900 awtq from his build. It was a safe assumption that he would experience slippage with his build with stock clutches so we opted to upgrade the clutches while we were at it.
Blackboost have been running these clutches for 2 years on a high horsepower high torque GLE as part of a R&D process and they've abused the heck out of the clutches. For us it was a no brainer opting for these clutches as part of the build.
So far the clutches have been holding fine and the car drives like stock with crisp and smooth gear changes. Go back to the video and have a listen to the gear changes and note the following:
- We had 80 break in miles on the clutches before we ran the first dyno session
- We then drove an aggregate of ~ 200 miles to Beeville, then 120 miles round trip to Corpus Christi to get the trans adapted before returning to the track to do multiple passes dialing in the tune.
- The trans clutches had 400 miles on it when we took this video.
- The car readily adapted to the new clutches.. I think primarily because stock tolerances are maintained with this clutch pack assembly. According to the tech if took less than 15 mins to adapt the trans.
I know I'm biased, but these clutches really do deliver on their promise. Time will tell if they last, but I'm confident in the abilities of the Blackboost team and this product.
I have a different post here: https://mbworld.org/forums/w212-amg/...e-no-joke.html that details the clutches used, with some additional info.
Last edited by brutus_tx; Apr 6, 2022 at 10:46 AM. Reason: formatting



Amazing work! You all have pushed this platform to an awesome place and we have reaped the benefits. Cheers!


