Showing posts with label Dyno Test. Show all posts
Showing posts with label Dyno Test. Show all posts

Thursday, February 11, 2016

Lord Disick Mercedes AMG GTS Build at Vivid

The Mercedes AMG GT-S coupe is a pretty awesome car.  For the longest time I was more of a BMW fan than Mercedes.  When we got our Project C63 my eyes were awoken to what Mercedes did.  The CLS63 we built was fun but a little to cush.  Our CLA45 is a reminder of the days driving the Mitsubishi EVO and Subaru STI.  But this AMG GT-S is right up Porsche ally and its a monster!  This car is a little special because of the owner.  Personally, it does not matter if you are a celebrity, sports star, or joe schmoe.  What is important is that you are down with cars and get it.  Car guys are car guys.  Scott Disick is a true car guy on the higher end of the car scale.  Having owned cars like the Ferrari 458, Mercedes SLR, Lamborghini Aventador, and even Bugatti Veyron, he is in touch with speed.  Over the years we have talked about different vehicles and finally we got together to make his new AMG GT-S boosted up.


The AMG GT-S was picked up and delivered to our shop in Gilbert, Arizona by our friends at Desert Eagle Auto Transport.  The car had just 3000 miles on the clock and our plan was to give it some more power with Agency Power and VR Tuned.  We wanted to show our capabilities against some of the other well respected Mercedes tuners.  In addition to the performance, we discussed giving the car a new exterior look inspired by some random google searches.  Where the Prior Design Widebody would be awesome, we went a little subtle with a wrap and wheel coating.  The first thing we did was a baseline test to see where the car was at.  We ran the car on our Mustang All Wheel Drive Dyno with 91 octane fuel and outside temperature around 50-60F.  Our baseline test yielded 416 awhp and 430 ft/lbs of torque.  Even though the car was rear wheel drive and we ran it in awd to avoid crazy dash lights with dyno mode, it had trouble keeping traction in 3 gear pulls.


Our first step in this build was to do downpipes.  The new 4.0L V8 engine is very strong and what we have seen from the past with our CLS63 and other turbo cars is that the downpipes give the most performance.  We chose to do catless downpipes which gave the twin turbo M178 engine no restriction and even faster turbo spool then what Mercedes designed with the “hot inside V” configuration”.  Turbocharged engines really don’t need backpressure, however if no restriction, the cars can get very loud.  So our fabrication team with Agency Power begin the develop of building the downpipes off the car and then jigging them up.  Now another part we decided to do for fun would be a straight pipe race exhaust.  Newer cars such as the Mercedes GT-S have a good flowing valved exhaust to be comfortable at cruising speeds yet aggressive when in race mode.  With a straight pipe system, this would be geared towards the track guy or those with #nocare!  It does save a ton of weight off the back end since there is no muffler.  While the downpipes were under way, we also began building this exhaust system to later jig up as well.


With the exhaust system underway, we did some testing of our VR Tuned ECU Flash for the Mercedes GT-S on our dyno.  Typical gains are rated for higher octane such as 93oct or up.  But in Arizona and California we have 91oct so the performance is slightly less.  With a drivetrain loss of 20-25%, we usually guess at around 22% from stock.  However the estimation is not always spot on so we look for what are the gains from our baseline to tuned.  The ECU flash allows us to adjust boost, fuel, and timing, as well as other parameters including that for catless downpipes.  Stock power is rated at 503 HP with 479 lb-ft(600 N-m), where once tuned goes to 615 HP | 585 lb-ft(664 N-m).  Thats a very strong gain and grows even more with the exhaust components.


With the package all put together, we did a final dyno and tests on the car.  The first impression is the insane sound that now comes from the 4.0L V8.  The straight exhaust is intense and makes the Mercedes sound like a mean GT3 race car.  When on the dyno the torque difference is menacing and makes the turbos come on extremely quick.  Our baseline run had the peak torque at 3300rpm making 430ft/lbs where now 3300rpm makes 510ft/lbs and peak torque goes to 526ft/lbs at 3700rpm.  3700rpm has a gain of 100 ft/lbs of torque over stock!  This gain in torque continues which tapers down to redline while still making 60ft/lbs of torque even at 5000rpm.  6100rpm is making around 50ft/lbs.  Horsepower is a very linear increase starting at 3300rpm with 40awhp and climbing up to a peak of 70awhp over stock.  This is about a 90bhp gain on 91octane which is very good.


Thanks to our friends at EAWraps in Scottsdale for this full satin charcoal wrap they did.  Having had cars wrapped by other companies in the past, this is one of the best jobs I have ever seen.  Its flawless and goes great.  Even down to the emblems and center caps were touched.  We also added a little flavor by powdercoating the stock wheels a bronze color to pop out.  Check out the videos and pictures below and let us know what you think!







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Lord Disick Mercedes AMG GTS Build at Vivid

Wednesday, September 30, 2015

Straight Piped Porsche 991 Turbo Breathes Fire and Power

Our Project 991 Turbo is in different hands now, but we are fortunate enough to be able to still play with it.  Having a slew of power proven parts already, we wanted to make a new part that would be loud, make power, and drive the fanboys nuts!  So we did :)  Just like we built on our Project 997 Turbo, these straight pipes, aka Bazooka Shooters, are a turbochargers dream.  Fabricated here in our Gilbert, Arizona facility, they feature 3 inch stainless steel piping that fits harmonously with the stock or aftermarket tips.  Retaining the bungs for the O2 sensors, you can be sure that without a tune, these will give you a CEL.  But with the power, feracity, and sound that these give you, a weekend of fun will make that light go away till you are ready to reinstall your regular exhaust.


We tested these on our 991 Turbo and kept the only variable different being the exhaust.  Already equipped with the VR Tuned Tuning Box, AP Y-Pipe, AP Intakes, and AP Headers, this car has some balls.  With the straight pipes, the turbos spooled up much quicker making peak torque almost 400rpm quicker.  From the start of test at 2500 rpm to 3800 rpm, the car made an additional 65 ft/lbs of torque.  Torque stayed strong through the midrange with an additonal 25 ft/lbs.  Horsepower was increased in the midrange around 5200 rpm with a peak of about 40 awhp.  All of these tests were done on our Mustang AWD Dyno with 91octane and an ambient temperature of around 90F.


If you are interested in these new parts, contact one of our sales representatives at 1.480.966.3040 or shop all our Porsche 991 Turbo Parts Here.



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Straight Piped Porsche 991 Turbo Breathes Fire and Power

Monday, February 10, 2014

991 Turbo Dyno Testing and 1/4 Mile Run

With any Vivid Project Car, we got to start with a baseline.  This helps us know what we have gained, improved, and more over, how freakin fast our car is!  Here at our Gilbert, Arizona facility we use a Mustang all wheel drive dyno.  This dyno is one of the most accurate dynamometers for tuning and testing.  Having a database full of dyno runs since 2006, we can really compare past cars to know where we stand on average when it comes to modded runs or baseline runs.

The 2014 Porsche 991 Turbo comes with a turbocharged 3.8-litre six-cylinder with direct petrol injection producing 520 hp.  Together with a new thermal management system for the turbo engine, fuel efficiency technologies have reduced average fuel consumption up to 16% to 9.7 liter per 100km.  Compared to previous models, the power level of the 911 Turbo was boosted by 20 hp and its torque was increased 10 Newton metres up to 660Nm.  The increased power of the new 911 Turbo was achieved primarily through improving engine efficiency with higher combustion pressures, new valve timing and ignition angle tuning. In the engine of the S model, charge pressure was increased to 1.2 bar to enhance power and maximum engine speed was increased 200 rpm to 7,200 rpm.

With our new Porsche 991 Turbo strapped down for some runs what would it make on the dyno as we posted on our Facebook and Instagram page.   Testing in Sport Mode to take advantage of the 0.15 bar increase for 20seconds in the midrange, the cars first run made 469awhp and 530ft/lbs of torque.  With a 20% drivetrain loss as seen on the Mustang, we were definitely higher than that 416hp number.  To show the effects of leaving a car in sport mode and doing run after run after run, you can see how the EGT temperatures affects the turbos and ECU dropping absorbanent amount of power each time.

Finally for fun, we decided to try out the Mustang Dyno 1/4 mile test.  With a basic tree on the screen, its just like the real thing, kinda.  Using Sport Plus for fast shifts, when the light goes green, its pedal down.  Even with the rollers, traction is a issue.  The car definitely slipped in 1st-3rd gears.  Purely for fun, it could be used to further test out mods without leaving the shop.  I was pleased to know that even with a computer simulated drag race, I have the reaction time of a moose but ran a 12.5 sec pass.  Guess I will stick to my day job!  Check out the pics and videos and keep tabs on our official Project 991 Turbo Gallery Here.

 


991 Turbo Dyno Testing and 1/4 Mile Run

Tuesday, January 28, 2014

GTI Golf MK6 Volkswagen 2.0L Turbo Gets Tuned

The newest 2.0L FSI Turbo engines from Volkswagen can definitely pack some serious power once tuned.  The turbos have plenty more power to give and once remapped, the power is unleashed.  The new Tricore processors in the ECU’s require them to be removed from the car and flashed on the bench.  The term bench flashing is loosely used like “off the shelf tunes”.  People associate bench flashing with removing a eprom chip and soldering.  Not the case these days…  These Bosch MED17,x,x ECU’s can be flashed quite easily with our system.  Utilizing spring loaded pins to touch the circuit board and input wires to place on the pins where the plug goes, the entire process is very safe and quite … Continue reading
GTI Golf MK6 Volkswagen 2.0L Turbo Gets Tuned