- Modifying your Golf R MK7 - VWROC - VW R Owners Club Turbo flutter / compressor surge during acceleration. Note: Some models may be superseded or dropped. I shot an email out to GFB's tech support and linked the video. Ignition Coil Pack Failure. This is a great way to lower your car without breaking the bank or making your car too low. I've youtube'd compressor surge and am not convinced this is what I'm hearing. 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. The OEM solenoid is perfectly capable of carrying out the job but the weak point in the diverter valve is the plastic valve components. I believe that's the DV actually working. Air leaves the turbocharger at the part shown in red. Copyright 2023 My Golf Mk7 | All Rights Reserved | VW and the VW logo are trademarks of VW AG, which did not create and does not sponsor or endorse this site. I just want to hear the turbo a little more. Im concerned because I might be driving across country and the heat soak is sometimes happening even at idle. I am here to help you with your car questions. Gaskets included; . 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. Good luck figuring out what it is and post back if/when you figure it out. Determine if the air scoop performs as advertised. Want to modify your 2015-2018 MK7 VW GTI? 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. 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. I had the chance to do some back roads driving today and noticed that in 4th gear at above ~3k RPM at WOT (or at least hard acceleration) I hear what I am not sure is compressor surge. It has an updated turbocharged 2.0-liter 4-cylinder motor. Now time to make a few shake down drives to ensure everything is operating correctly. 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. Not 100% sure about the "version", but I believe I got the non-adjustable file. Should get zero with the spacer as you really haven't changed anything related to the DV. Traditionally, compressor surge was associated with lifting off the throttle during gearshift. The sound coming from this its like the wastegate is opening and closing very fast for around three times. And weve sent inspection samples to FrankenTurbos biggest dealers as well. The stock intercooler is fine until higher power levels are reached. This easy to install, haste free for any professional welder with a team of 10-12 helpers. John mk7 GTI 26 subscribers Subscribe 2.1K views 6 years ago After flashing my ECU I noticed this surge/flutter type sound on. Cost. Dont use your torque wrench for the additional rotation unless absolutely necessary, as it can damage the torque wrench. I'm definitely hearing a "fluttering" noise that increases and decreases for a couple cycles as the pressure is released. Your email address will not be published. The amplitude of fluctuation was 100 N from the mean. There is a good bit of open space under the hood and above the grill, enough for air to fit through. I think there are better places to focus your efforts than the intake manifold. Engine oil filter cap - fits tight, no leaks. Unitronic offers the additional benefit of being able to flash from home via their Uniconnect system. It can be avoided. Lowering Springs: modest 1 to 2 drop, replace stock springs and reuse the stock struts and shocks. Compressor surge is when unused air from the intake is redirected backward when the throttle closes, if the Diverter valve wasnt there, this air could damage the turbo. I only notice compressor surge at very low throttle input and shifting before about 3K RPM, but giving it just a touch more throttle eliminates it completely. This solved the heat soak issue completely. We also tackled another known flaw with the OEM turbo: compressor surge. These tunes can be done in around an hour, you would need to find a software dealer in your area and take your car to their shop. Love it. JavaScript is disabled. | Powered by Astra WordPress Theme. What is odd about the statement EQT has made about their Vortex turbocharger is that they are concluding how the turbocharger is affecting the compressor outlet air temperature, the purple line, by only using the information contained in the red line. Flutter (surge) is air that has no where to go once throttle closes. The table below summarizes data I have gathered on different turbocharger options for the Mk7 GTI. Learn more about our writers on our about us page. Oh I completely missed the "upgraded" dv. The data from the IS38+ turbocharger example above can be compared with the data presented by EQT. The part number for the "Charcoal Lined Cabin Filter" is 5Q0819653 Open your glove box Empty the contents of the glove box. Heres another mention of the problems with compressor surge under load from High Performance Academy. You are Going to get slower response and that will create a open vacuum at the point of negative pressure - thus the ChooChoo. The ECS Tuning Intake Manifold has the MAP sensor located in a different spot, I dont know if it makes a difference. i can really only hear the spacer at wot or with my windows down. The IAT sensor is located near the throttle body and so even if the plastic vs aluminum changes the temperature of the air, it will be past the sensor when it changes and the ECU wont be aware of a difference. 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. Sway Bar: there are options for the front and rear sway bars, give your car roll stiffness. Ask me anything. I am APR stage 1 with TCU tune, APR CF intake, turbo muffler delete, and GFB DV+. Aftermarket: big brake kits have larger rotors, which increase stopping response, along with more clamping power due to more pistons in the caliper. 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 . Boost peaks for me at about 25-26 psi at sea level. MK7 GTI/Golf Throttle Pipes & Turbo Outlet Pipes. This part has a significant contribution to the air temperature. You can also see that the Intake Air Temperature barely moves through the entire pull. Claims for what this part will do include: One sellers explanation for why it works: Why do this? /r/GolfGTI is a place for GTI enthusiasts to discuss and share information related to the best car that can be had for less than $40K. 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 can feel it really well on my bu*t dyno at WOT. Shown here, the DFG Tuning MQB Discharge Pipe System fits the MK7 GTI and Golf platform as well as the 8V A3/S3 platform and the MK3 TT platform. When it comes to increasing power on the Mk7 GTI, the only real limit is your budget. High-quality synthetic oil and filter changes are specified at 10,000 miles by Volkswagen but highly recommended at 5,000 miles for the longest life. If things go well in the next weeks you can expect to find these turbos on ECS Tuning, UroTuning and other sites. Compressor. It likely will produce a bit more power as well. Reference: Brouwer, M. (2015). Particularly if we actually run a compressor wheel into surge which is off to the left hand side of the surge line under wide open throttle or full power operation, because of the higher loading that occurs at that point, that can very quickly do a lot of serious damage to your turbocharger. Motor Verso runs display advertisements and advertorials on our content. Go Fast Bits offer the DV+ T9351 which is an upgrade kit that partially uses some of the original diverter but upgrades the internals to improve performance. We have a team of writers working daily on common car problems. Were launching a new line of turbos that are what we call OEM+. . Heres an example. Heres why I think this. Your turbo is providing more boost than the car can utilize. Bottom line, determining the compressor efficiency takes some effort. Start by removing the OEM plastic valve and removing the spring. Surge should be avoided during engine operation as the forces can damage the bearing system with the potential of failure to occur. Cookie Notice These systems use air bags instead of springs to raise the car up and down as well as control ride comfort via air pressure. Video guide for fitment of a similar part: AI Car Expert: Further information on Diverter valves in the EA888. Aftermarket FMIC have a larger core and piping allowing for better. The GTI is a perfect blend of performance and commuter. In the case of our turbo for the Mk7 which were snappily calling the IS38+ weve redesigned the internal assembly to much beefier specs. Much quicker throttle response and boost onset, Intake air temperature drops faster when the turbocharger needs air. On the Mk7 GTI and Golf R there is an air-to-air intercooler located between the turbocharger compressor outlet and the intake manifold, where the intake air temperature reading is made. 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. We also tackled another known flaw with the OEM turbo: compressor surge. 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. Check these out to see just how in-depth we go to make them. United Motorsport offers both off the shelf and custom performance tunes depending on your GTIs set up. Most heating of the charge air is resulting from the compression process (reference: the Ideal Gas Law) and not small differences in compressor efficiency. These can be done on completely stock cars and when you decide to modify your car more you can get a re-flash to work with the parts you put on your car. Yes, some stu stu stu compressor surge in there for sure. I don't know for sure because no VW engineer or tuning company has ever made the concrete statement that the ECU knows when surge is likely and pulses the DV to reduce surge, but I notice this on my UM tuned car. The consent submitted will only be used for data processing originating from this website. Alternatively, I could have shifted the IS38+ IAT data downward to match EQTs starting IAT data. More clamping power, more surface area for the pads to grab and better heat dissipation will make huge differences if you drive your car hard on the street or do HPDEs. EQT Compressor Surge Advice | My Golf Mk7 GTI EQT Compressor Surge Advice August 26, 2022 Background: 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. Manage Settings There are a ton of options out there depending on your budget, the look or style, and material type. The goal is to have a comparison of the shapes of the curves since this is what EQT is pointing out in their product description. Adding the IAT to the boost curve and rescaling the axis to be similar to those used by EQT results in the following chart: Note: As identified on the chart, the do88 intercooler is being used during this data recording. Its not evident from their product description how they are using the IAT (red line) to calculate the compressor efficiency. Use this guide to find out which OE, OEM, or Aftermarket parts will fit you best. Measuring the space between the hood and grill. It sounds a little like a BOV, albeit quieter and much more tamed. I heard they were prone to get stuck. Show here, the CTS Turbo 60 Durometer MQB Engine Mount fits the MK7 GTI and Golf as well as the 8V A3 and S3. One year warranty . so i got out to feel if the heat was building up and it was at the same spots. Here are a few reasons the Mk6 GLI may be for you. Learn what you need to know before buying one. /r/GolfGTI is a place for GTI enthusiasts to discuss and share information related to the best car that can be had for less than $30K. Various stages of tuning give you various levels of power. The diverter can now be split ready to be upgraded. Remove the connector from the diverter valve. A check engine light with EPC light resulting in a lowered power mode (aka Limp Mode) could indicate an over-boost, fueling, or ignition issue. Aftermarket sway bars will help reduce this. 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). Upgrading it will ensure reliability and longevity to your clutch. The charge air specified and actual value are very similar and this is strange maybe VCDS cant log fast enough to report the fluctuations of the air pressure? I suspect the temperature reading from the IAT sensor is being effected by the location of the sensor inside the manifold. Have you listened to youtube clips of other cars? A previous post described the Shuenk OEM+ IS38 that will be installed in my GTI. . and it is impacting boost? If the car is performance-tuned, this is something to pay attention to as not all tunes are created equally. The 2015-2018 Volkswagen MK7 GTI is a sporty hatch. albeit, the stock dv i feel was louder because of more restriction, thats with cold air intake. Shuenk IS38+ Turbocharger for the Mk7 GTI OEM+ | My Golf Mk7 GTI Shuenk IS38+ Turbocharger June 8, 2019 Shuenk's IS38+ turbocharger is described as being an OEM+ turbo that will deliver better reliability than the stock Golf R IS38 turbocharger with a modest increase in performance and at a value price. We welcome discussion of all things GTI. Comes with BFG Tires 33 X 12.5 X 15. If you are interested in upgrading to either go faster, sit lower or sound better, this guide will give you some general direction. Anybody have any suggestions? Claims for what this part will do include: . By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. The engine should respond well to small changes in throttle inputs, with smooth part throttle performance around town and on the highway. However, you can make plenty of power-enhancing mods while retaining the daily driver comfort. For a better experience, please enable JavaScript in your browser before proceeding. Additional. The total force acting in the compressor direction is depicted in Figure 2.32. I've been lurking here since I purchased a used GTI mk 7. We and our partners use cookies to Store and/or access information on a device. We dont yet have anything more than a temporary web-page for Shuenk. Check the engine oil level. Height adjustable coilovers will be cheaper vs height and dampening adjustable kits. If you're looking for more Mk7 VW GTI DIYs, news, and guides, you can find all of that on our Mk7 Golf hub. Hi! Note: This data is from a Shuenk IS38+ turbocharger, not the IHI IS38. Other accessories like a compressor and air tank are needed. This causes damage and reduces the life span of the turbo. The GFB DV+ Diverter Valve fits most 2.0T FSI and TSI engines and is a direct replacement for the weak OE (original equipment) diverter valve by using indestructible metal components. If you are interested in upgrading to either go faster, sit lower or sound better, this guide will give you some general direction. Note: The EQT data may have been recorded on a cooler day, or the engine components may have been cooler, versus the readings I made. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Depending on your budget and how far you want to take your GTI, power output can be pushed to nearly 400 horsepower without any internal engine changes, or even more if youre willing to upgrade the internals. this is interesting. 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. This page will serve as a central location for information, and links to external information, related to the air scoop for the Mk7 GTI. Comparing the EQT results to the IS38+ turbocharger, the IS38+ appears to produce intake air temperatures similar to those of the Vortex. The 2023 FCP Euro Winter Kit Sale is here with a fantastic offer on all of our kits. The Mk7 GTI is equipped with an evolution of the 2.0t turbocharged Volkswagen 'TSI' EA888 generation of engines. Coilovers: Are exactly what they sound like, Coil springs and shocks in one package. The kit contains everything you need to upgrade the plastic components to metal components, some revised springs and extended bolts since the overall length of the diverter valve increases. 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. 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. - YouTube pull on third gear from 2500rpm to 5000.Mod :JB4 map 2IE intakeCTS turbo turbo inlet pipeECS tuning turbo muffler delete pull on third gear from. Absolute roast of dave backed by facts. When I give it the full beans I don't hear anything out of the ordinary apart from induction noises. Under load Im running at 20-35c which is pretty good given the car is putting out 485bhp (Garrett GT2260s amongst a range of goodies). Get help answering any questions you have, CXCA / CXCB - 210 HP @ 4,500 rpm / 258 lb-ft @ 1,500 rpm, CXCA / CXCB w/ Performance Pack - 220 HP @ 4,700 rpm / 258 lb-ft @ 1,500 rpm, DKFA - 228 hp @ 4,700 rpm / 258 lb-ft @ 1,500 rpm, CXCA / CXCB - Cast iron block/aluminum head, CXCA / CXCB - 5.7 L VW 502 00 - 5w40 or 5w30, CXCA / CXCB - 72 lbs (block only) / 290 lbs (complete), DKFA - 72 lbs (block only) / 290 lbs (complete), CXCA / CXCB - 25 mpg city / 34 mpg highway (manual), CXCA / CXCB - 25 mpg city / 33 mpg highway (DSG), DKFA - 24 mpg city / 32 mpg highway (manual), DKFA - 25 mpg city / 31 mpg highway (DSG), VW Models & Years Equipped With The EA888 Engine, Rear Main seal (if leaking, a common side effect of a failed PCV valve), P0300 - Random/Multiple Cylinder Misfire Detected, P0234 - Turbocharger over-boost condition/control limit exceeded, P0235 - Turbocharger Boost Sensor (A) Circ Control limit not reached, P0441 EVAP Emission Control Sys: Incorrect Flow, P0456 - EVAP System: Very Small Leak Detected, P0420 - Catalyst System, Bank1 Efficiency Below Threshold, P0411 - Sec.Air Inj.Sys. Free shipping for many products! Umax_33 5 yr. ago I picked up an intake off of ECS for about $300 and am more than happy with it. We welcome discussion of all things GTI. Modded Euros 2010 Volkswagen CC Vinyl Wrap Project, Unitronic Turbo-Back Exhaust made for the MK7 GTI fits 2015-2017 models, South Bend Stage 3 Endurance Clutch Kit with Flywheel for the MK7 GTI and Golf R, GFB DV+ Diverter Valve fits most 2.0T FSI and TSI, Neuspeed 6-Piston 340mm Big Brake Kit for the 2015+ S3, 2016+ TTS, and the MK7 Golf R and GTI, ADV1 Wheels: Rolling Out Performance Wheels, Enhancing Performance: Turbochargers in Audi, BMW, and Volkswagen Vehicles, BMW N54 vs N55 Engines: A Comprehensive Comparison, Understanding Automotive Wheel Offset and the Role of Spacers, What is a Brake Master Cylinder and How to Tell if its Failing, Understanding Oxygen Sensors in your Euro: How to Identify Failing Ones. Privacy Policy. Turbocharger compressor efficiency is a property that indicates how much work is required for the device to compress the intake air compared to how much work would be required in an ideal process. Refit the connector and with the intake pipes refitted the GFB DV+ is now installed. I know UM has a few versions depending how aggressive ya want to go, think I'm running their most aggressive versions was told 29psi. Remove, check, reinstall. hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '13f0880f-a4d7-45ef-b212-169a84bd06a5', {"useNewLoader":"true","region":"na1"}); FCP Euro's Event Director by day, writer and contributor by night, and wanna-be race car driver on the weekends. Maybe they'll be able to shed some light. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. It helps to fit them by hand first before using tools to tighten them. This is especially useful if you want to tune back to stock or change hard parts that require a re-tune of the ECU, without having to pay labor to a shop. 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. The holes in the top of the grill are just one area for air to pass through. You can see that the turbo hits 27psi right at 3000RPM and holds it to redline with ease. The other kind of compressor surge is on-throttle surge. Everything is uprated: the rotor shaft, the compressor wheel stem, the journal bearings, the thrust bearing. Ensure the bolts do not fall when removing them. The VW A59 is a prototype unknown to many. I dont know if you could lower the engine compartment temperature enough to change the IAT sensor reading. It may not display this or other websites correctly. The Mk7 doesnt suffer as badly as its predecessors. I hear no compressor surge. Required fields are marked *. Followers 0 Reply to this topic Start new topic Recommended Posts Golphin New Members 18 Report Share Replacing the smaller IS20 GTI turbocharger with the larger IS38 turbocharger from the Mk7 Golf R is one of the most popular and easiest ways to increase power with OEM-like reliability. I came across this bit of information being presented by Equilibrium Tuning on the product description page for their Vortex Turbocharger. Instagram: @njbrown55. $1,200. It may not display this or other websites correctly. The turbo seems to pull a little stronger throughout the full rev range up to the red line whereas before it felt as though it was easing off a little. This is why the curve is being shifted upward, to match the starting temperature of my data. There are 3 bolts that hold it in place. Nathan has been working in the VW and Audi performance aftermarket for nearly two decades, and dabbled with Porsche and BMW. I think I'm hearing in your video what I hear on my car. 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. Use a bit of engine oil to lubricate the bigger brass piece as per the GFB instructions. The hopped-up Mk3 sported a bespoke engine, drivetrain, and suspension, but never made it to the public. wow what a difference! It should be pink or pink-purple. This discussion starts around 13:00 of the video. It's an age-old question. COBB Tuning is a newcomer to the VW tuning marketplace, offering baseline off the shelf tunes as well as allowing for custom tuning by selected dealers. https://youtu.be/akaHya9JH8A. I did enjoy it! Motor Verso is an automotive website; for car enthusiasts, run by car enthusiasts. I haven't seen any evidence to suggest this amount of surge will destroy the turbo, plenty of these cars do it, and I haven't heard of turbo . There should be no check engine lights or other warning lights. I am here to help you with your car questions. You can hear it, you can feel it,. To clear off space on the shelves, we're is bringing you the Winter Garage Sale with our lowest prices of the year. A much stronger rotating assembly will not break. I suspect VCDS does not sample fast enough to show the pressure fluctuations. i feel the heat behind the headlights and on top of the hood where the turbo is(which is why i considered and turbo blanket but again it doesnt make a significant difference) I was going to get a new intake to reroute the air and even do the inlet duct scoops too and if the heat still there was thinking an aftermarket hood with vents any advice i would greatly appreciate it! Which version or when did you have yours UM tuned, outta curiosity? It is worth noting that because of the sensitive nature of ECU tuning and potentially expensive problems that could arise with unsafe ECU tuning, always do plenty of research before going with a small tuner without the research and development of the larger and more established companies like Unitronic, APR, and United Motorsport. The torque is up in a big way, from 207 lb-ft last year to a whopping 258 lb-ft. It's a difference you'll feel every time you punch the gas. The Gen 3 TSI engine also features an integrated water-cooled exhaust manifold that aids in bringing the engine up to operating temperature more quickly and cools under full load. This efficiency is usually provided on a turbocharger compressor map as efficiency islands. Hi! Some of our partners may process your data as a part of their legitimate business interest without asking for consent. The Unitronic Turbo-Back Exhaust made for the MK7 GTI fits 2015-2017 models. The air temperature out of the IC is likely much cooler than what the IAT sensor is reporting during stop and go driving. Which could be "normal" I guess. From the TuneZilla graph, you can see that at around 3K RPM there is a dip and then a rise in engine torque. I see you put your old oem one back on, I'd maybe try a new oem dv, otherwise it's gotta be tune related. Diverter Valve: A Diverter valve is there to protect your turbo from compressor surge. Continue with Recommended Cookies. Drivetrain Performance (Motor, Exhaust, Intake, transmission). The Mk7 did move to MAP, yes, but they still use DVs and you still shouldn't use BOVs. This will expose the diverter valve. it can be seen that in the majority of cases it will not cause significant turbo wear or damage JavaScript is disabled. Replacing the DV is a good maintenance and performance item, it will ensure that your car will hold boost without any issues once you add more power. Released in 2014 then updated in 2017, the Mk7 GTI followed the rather good Mk6 and incredibly good Mk5 (the less said about the Golf Mk3 and Mk4 the better). The Shuenk turbo is intended to be a direct replacement for the OEM IS38, being of the same dimensions and working with OTS IS38 software. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. They can offer an increase in horsepower and torque, as well as a more aggressive sound from your Mk7 GTI.
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