We also tackled another known flaw with the OEM turbo: compressor surge. It is really just supposed to read air temp. The stock pipe is known as the pancake pipe because it is very restrictive compared to other aftermarket pieces. Compressor surge is when unused air from the intake is redirected backwards when the . seems like it barely gets any air into the intake side and the only way to get more air is to either block of the passenger side and reroute all the air over to the intake or keep both open so the engine bay can get some wind to cool down from heat soak(im guessing) and the intake can get some too. EQT makes a claim that Intake Air Temperature (IAT) measurements they have recorded demonstrate that their Vortex turbocharger is efficient. On turbocharged engines, like the EA888 found in our Mk7 GTI project, a diverter valve serves the purpose of releasing turbo boost pressure when the accelerator is released.The turbocharger will continue feeding pressurised air towards the throttle body which can ultimately result in the air getting stuck and forcing its way backwards up to the turbocharger causing an issue called compressor . :-) Pretty good article you linked. The number of performance tuning options is staggering, and no matter how you plan on using your GTI or whatever your horsepower goal may be, there is an option on the market to help you achieve that goal. Check around the passenger side front of the engine, just below the intake manifold/dipstick, There should be no check engine or EPC lights on the dash, or any other warning lights. Popular parts brands include Integrated Engineering, JE Pistons, and Mahle Motorsport, while Integrated Engineering also offers complete, pre-built short and long blocks. We and our partners use cookies to Store and/or access information on a device. Cost. Required fields are marked *. Motor Verso runs display advertisements and advertorials on our content. Always let the oil temperature warm to 180 Fahrenheit before driving at full throttle or driving over 4,000 rpm. **Capable of over 800hp. The new wheel has an added blade pair, extended tips & a changed blade pitch. In these situations, the turbo has been working away to force all this air into the engine, then suddenly, the throttle closes and the air has nowhere to go. Gotcha, I also think there's an update, I'm doing some more mods Saturday and tuning changes (adding intercooler and dp) so I will chime back in. In fact I am wondering if I am better to have a fan blowing cold air in that starts or blows only when the car is in those stop start temp circumstances. Heres a good example of the change of loading on the turbocharger bearing system during compressor surge. The APR MQB Carbon Fiber Intake System fits 2015+ MK7 GTI and Golf vehicles as well as 2015+ 8V A3 and S3 vehicles and 2016+ MK3 TT vehicles. Note: EQT does not indicate what intercooler was used when they recorded their data. Surge should be avoided during engine operation as the forces can damage the bearing system with the potential of failure to occur. the one way the air is coming in is through the passenger side which is blowing right on to the manifold. I believe that's the DV actually working. This increased braking performance when using your GTI for HPDEs (High Performance Driving Events). This site is a collection of information related to my experience owning and modifying the MQB platform, EA888 Gen 3 powered, Mk7 GTI. Incorrect Flow Detected, P0130 - O2 Sensor Circ., Bank1-Sensor1 Malfunction, P0131 - O2 Sensor Circ., Bank1-Sensor 1 Low Voltage, P0132 - O2 Sensor Circ., Bank1-Sensor 1 High Voltage, P0133 - O2 Sensor Circ., Bank1-Sensor 1 Slow Response, P0134 - O2 Sensor Circ., Bank1-Sensor 1 No Activity Detected, P0135 - O2 Sensor Heater Circ., Bank1-Sensor 1 Malfunction, P0136 - O2 Sensor Circ., Bank1-Sensor 2 Malfunction, P0137 - O2 Sensor Circ., Bank1-Sensor 2 Low Voltage, P0138 - O2 Sensor Circ., Bank1-Sensor 2 High Voltage, P0139 - O2 Sensor Circ., Bank1-Sensor2 Slow Response, P0140 - O2 Sensor Circ., Bank1-Sensor2 No Activity Detected, P0141 - O2 Sensor Heater Circ., Bank1-Sensor2 Malfunction, P0340 - Camshaft Pos. Im concerned because I might be driving across country and the heat soak is sometimes happening even at idle. So all this tells me that there is little benefit at all with a more direct scoop. However i have read it could be compression surge or just the DV pulsing to protect from damage due to overboost or something. The initial noticeable difference is more responsiveness on throttle and the car pulls harder than it did with the original diverter valve on. A much stronger rotating assembly will not break. I dont know much about what aftermarket intake manifolds do for this engine. Hard part upgrades run from mild to wild, ranging from bolt-on parts like intake systems, turbo inlet pipes, intercoolers, downpipes, to fully upgraded engines with custom turbocharger systems. 1. We estimate just a short 80-110 hours of labor before you are flying high with a unique MK7. 2015+ Volkswagen MK7 Golf GTI Audi A3 8V TT MK3 3.5 Downpipe (VW MK7.5 GTI 2.0T 1.8T) Rated 0 out of 5 $ 1,099.00 $ 799.90. A Turbo back by itself will give your car more power and a much louder sound, typically most cars need a computer tune as well to gain the most out of the exhaust. The GTI is a perfect blend of performance and commuter. Various stages of tuning give you various levels of power. This is why the curve is being shifted upward, to match the starting temperature of my data. Manage Settings If things go well in the next weeks you can expect to find these turbos on ECS Tuning, UroTuning and other sites. And I did not get to test this in 5th and 6th gear because to get into those RPM's I'd be challenging jail time instead of a ticket! 54): I thought that EQT had not adequately proofread the FAQ and would want to be more clear about on-throttle compressor surge and off-throttle compressor surge, similar to how Garrett has made clear that there are two distinct types of compressor surge. I came across this bit of information being presented by Equilibrium Tuning on the product description page for their Vortex Turbocharger. They will be available directly through us on Amazon and Ebay as well. The Unitronic Turbo-Back Exhaust made for the MK7 GTI fits 2015-2017 models. There are some small differences between the IAT measured using the Vortex turbocharger and those with the IS38+ turbocharger. The data from the IS38+ turbocharger example above can be compared with the data presented by EQT. You are using an out of date browser. Claims for what this part will do include: . The other kind of compressor surge is on-throttle surge. John mk7 GTI 26 subscribers Subscribe 2.1K views 6 years ago After flashing my ECU I noticed this surge/flutter type sound on. I think I have a similar problem on my Audi with Revo STG1 tune and stock IS20. The 2015-2018 Volkswagen MK7 GTI is a sporty hatch. If you like the idea of building boost all over again, then this is for you. Stock brake lines are made out of rubber and can flex when being used hard giving the pedal a squishy feeling. wow what a difference! It has an updated turbocharged 2.0-liter 4-cylinder motor. With this cable and a laptop, along with a stable internet connection, any owner can performance tune their GTI in the comfort of their own driveway. Pads: More aggressive brake pads will increase the stopping power of your stock brakes. We have a team of writers working daily on common car problems. We have converted these to pound-feet (lb-ft) and inch-pounds (in-lb) and listed both for convenience. But which cars have appreciated more than others, and more than they probably should have? Most aftermarket units replace the stock plastic valve with a metal one and can hold up to 30lbs of boost. There were no indications to suggest so. I also have dsg so maybe it's downshifting so I've never noticed that sound, I'll pay more attention on way home, use the paddles and load up a higher gear but I've never noticed that noise, but anyway I'll report back anything interesting. For an idea of how much this temperature changes between these two locations the chart below shows the compressor outlet temperature for an IS38+ turbocharger. By the end of the pull, the IC is cooling the charge air by nearly 300 degrees Fahrenheit. Diverter Valve: A Diverter valve is there to protect your turbo from compressor surge. The temperature at the intake air temperature (IAT) sensor is shown by the red line. Note: This data is from a Shuenk IS38+ turbocharger, not the IHI IS38. The sound coming from this its like the wastegate is opening and closing very fast for around three times. Common for fast spooling turbos. The Mk7 GTI and the Gen 3 EA888 2.0t TSI engine are extremely easy to tune and upgrade. The Solo-Werks S1VW012 Coilover Kit is a popular upgrade for the MK7 platform. MK7 GTI/Golf Throttle Pipes & Turbo Outlet Pipes. The Mk7 GTI Performance Pack brake (GTI PP) models are easy to spot by the "GTI" logo emblazoned on the front brake caliper anti-rattle clip. Drivetrain Performance (Motor, Exhaust, Intake, transmission). Heat soak in stop and go traffic has everything to do with the intake manifold heating up and the IAT sensor inside warming as a result. The purpose of a bypass valve is to avoid off-throttle compressor surge. Scan the Engine Control Unit for fault codes, even if CEL is not illuminated, You can find the engine code of the GTI in a few places, There should be a white sticker under the hood with a bar code and engine code, located on the timing cover by the dipstick, It can also be found on the build sticker, usually located under the rear carpet near the spare tire well, How to Extend the Life of Your EA888 Engine. The property can be related to the air temperatures entering and exiting the compressor, although for the ideal case the exit temperature must be calculated since the ideal case will never exist in the real world. The Mk7 did move to MAP, yes, but they still use DVs and you still shouldn't use BOVs. Im Jeff, owner of a VW GTI. Clutches: a stock clutch is not meant to be able to stand added power. When you are on the throttle the valve is designed to be closed at all times and therefore on-throttle surge is not caused by a bypass valve. Could DV be sticking a touch? I have not come across a sensor relocation that puts the IAT sensor in a better location. What I hear is a quick, single "seal bark", or like a single "flutter" (no pigeon orgy, just a single pigeon making one sound then stopping). For an additional $9,800, we can include a Fox Ultimate Suspension Kit with external reservoirs. Compressor surge full throttle example 34,517 views Jan 21, 2016 120 Dislike Share Save PhoB J 442 subscribers Real compressor surge at acceleration example. On turbocharged engines, like the EA888 found in our Mk7 GTI project, a diverter valve serves the purpose of releasing turbo boost pressure when the accelerator is released. Depending on the mileage, motor mount will help increase the performance of your car by reducing the engine movement. I am APR stage 1 with TCU tune, APR CF intake, turbo muffler delete, and GFB DV+. Ya, I don't know what that is, neither of mine do that. Noticed in manual mode (dsg) when testing the kick down removal at about 2.5k revs 4/5/6 gear the intake makes a weird noise. Instructobot. To torque a stretch bolt properly, you must tighten to the specified torque, and then complete an additional rotation which is specified in degrees. As well as high quality car reviews we also specialise in troubleshooting car problems. It doesn't make these sounds in 1st, 2nd, or 3rd gear under the same throttle and RPM conditions, just 4th. This part has a significant contribution to the air temperature. Recently a question was posed by someone asking about a fluttering sound they were hearing from their GTI and if the sound was something to be concerned about. I admit I am new to the water cooled VW scene but have been around air cooled and high performance vehicles my whole life. The MK5 GTI is a strong platform to begin with. Love it. Once aligned the two parts can be pushed together leaving an upgraded diverter. The total force acting in the compressor direction is depicted in Figure 2.32. Although they share the same fundamental look, a limited number of parts, and utilize similar concepts, the EA888 Gen 3 of the Mk7 GTI features many distinct differences from the Gen 1 and Gen 2 variants. Cookie Notice Find many great new & used options and get the best deals for GENUINE VW GOLF Mk7 GTI GTD HANDBOOK OWNERS MANUAL WALLET 2012-2017 PACK U-776 at the best online prices at eBay! Save my name, email, and website in this browser for the next time I comment. Measuring the space between the hood and grill. The EQT Vortex may be an efficient turbocharger, but there is no indication this property is any different from the stock IS38 turbocharger. As you can imagine, a faulty or failing . This is done by something called flashing from companies like APR, Unitronic, GIAC, Revo, etc. Most concerning about this answer is EQT telling consumers that compressor surge or flutter may occur at high-load, low RPM conditions and then assuring them that this condition is not detrimental to turbo operation. Product Claims. I've been lurking here since I purchased a used GTI mk 7. Directions to the Scales Industrial Connecticut Location. I've still never noticed anything like your vid on either of mine. Below is a chart showing just how quickly the EQT Vortex can spool. The holes in the top of the grill are just one area for air to pass through. | Powered by Astra WordPress Theme, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Fact Check - YouTuber Claims about Intake Testing, Wastegate First Adaptation of Charge Pressure Actuator - P2563, Fact Check YouTuber Claims about Intake Testing, Open vs Closed Intake Turbo Outlet Air Temperature. You can see that the turbo hits 27psi right at 3000RPM and holds it to redline with ease. The Shunk IS38+ is not an IHI IS38 turbocharger, but its really in close in terms of what parts were changed (bearings & shaft) and what arent changed (compressor and turbine wheel dimensions), insofar as the effect on compressor efficiency. If you're looking for more Mk7 VW GTI DIYs, news, and guides, you can find all of that on our Mk7 Golf hub. thank you for all the research you have shared with us defiantly learning a lot! Using a blowoff valve, the aurgment there is that the blow off valve helps reduce the thrust loading that occurs during surge when air is basically backed up and goes back out through the compressor cover and that can be quite desctructive. It helps to fit them by hand first before using tools to tighten them. Do I make a valid argument? Scan this QR code to download the app now. | Powered by Astra WordPress Theme. The intake is going to pull in air from anywhere that a difference in pressure exists, with the back of the duct open to the engine compartment it will pull warm air from the engine compartment as well as from the front. Intake: When added with tuning, intakes will produce performance gains. There are a ton of options out there depending on your budget, the look or style, and material type. If you are interested in upgrading to either go faster, sit lower or sound better, this guide will give you some general direction. 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