Zd30 stock boost pressure Last week i realised my Boost was lower than usual . Be carefull of your turbo spool rate. 6 volts @ 3500rpm. Getting 65g/s MAF rate in 4th gear hauling (dirt road) 1500rpm 80-90% eng load. 45 Buy It Now or Best Offer. Save Share Reply Quote Like. Nov 30, 2010 #8 jap55s said: What's the actual stock boost of the d22 zd30's? Zd30 Common Rail Boost Control. john vk3jd Discussion starter. 0L 8-98020514-0. We stock parts from the worlds leading parts manufactures like DENSO, MITSUBISHI ELECTRIC, HITACHI, BOSCH, VDO, NTK, AISAN, ACDELCO, MOPAR, DELPHI, VALEO. There's no real quick and easy way to add those last two psi (remapping or putting a resistor on the mapsignal, but you need to be really careful with the latter through trial and error, as you're only trying to add a few psi). $35. Stock ZD, yes with no engine mods apart from dawes? Helmsy White 2003 3ltr ST Auto, with NADS Stock boost is 18psi. Nissan Nivara / Patrol / Caravan ZD30 OE Numbers: S227621090 OE Rail Numbers: 1752 0M A71A. ZD30 Map sensor adaptor / Boost Source. Turbo that was supplied with motor squeak, squeak, splat after about 1000k lauching bits of cast into intake system and intercooler. I have a stock 2000 patrol with boost and egt gauge when driving on the highway and boost is 13psi my egts are about 350 but when the egr opens and boost lowers to 5psi egts are 500 and any slight hill they can Nissan Patrol Genuine MAP Boost Pressure Sensor GU ZD30 DI & CR. Complete kit to suit Nissan Patrol ZD30 Di & CRD. What is the max the boost should read for my '02 gu3 3. NPC1000 Clutch (Manual Transmission Only): For GENUINE NISSAN GU Y61 PATROL ZD30 MAP BOOST PRESSURE SENSOR. 00 Current price is: $240. The valve ended up being the cause of more over-boosting, limp modes, stalls Engine Lights, etc. Attachments. Hope helps . Call for Assistance. It now gets its fresh air from the induction What's the actual stock boost of the d22 zd30's? Reply. They are 2 very different 4x4 to maintain. 0-litre four-cylinder turbo diesel was the most popular engine choice for Patrol buyers. I have recently purchased a 2000 GU II ZD30 intercooled. I've set up the dawes valve tonight and took it for a spin and it'll boost up to 19-20 psi and it pulls like a freight train. 0 lt CRD losing boost pressure. A rubber vacuum line connects to it at this point and runs across the front of the engine before running down the intake pipe to the boost controller. 00 inc. This guide covers both DI and CRD engines. Could take it for a short drive with Dawes bypassed/removed and observe boost pressure. 2 watchers. Bidja's Boost Control_VNT vacsol / ECU control + 3 needle valve (refer attached). A common complaint and a reason why the original Garrett turbocharger requires replacement is overboosting. 00 Original price was: $350. If this and the combination of the "Catch Can" also assist in the reduction of "boost pressure" issues, all the better. Please Login A guide for chasing more power out of your ZD30. $ 818 Turbosmart's Boost Reference Adapters (BRAs) allow access to a reliable boost reference, without compromising the operation of the car's standard sensors and control systems. Member #24, ST Patrol Club. really you need a chip to add more fuel to up the boost and get effective results. it used to boost up to 15psi, drop down to 12, and then gradually Can anyone please tell me what stock constant boost pressure my turbo should be running?? Sorry if there’s a post but I can’t find it. 5l . com. The ECU is lost with these mods when it executes what it was taught to do to control the VNT solenoid. au Forum > Mechanical > Engine and Drivetrain > ZD30 - Vacuum to Boost control. 7 posts · Joined 2015 Add to quote; Only show this user #1 · Jan 22, Patrick takes us through the diagnostic process when investigating this ZD30 DI Nissan Patrol. I am using boost pressure to do the work normally done by Vacuum. Jump to Latest And no all stock boost control . basically making it a poor turbo. New posts Search forums. 235,000km without detonation. ZD30 DI boost with nads have been in archives [zd30 di turbo egt] and was wondering wether I have set nads up correct. Patrol Y61 SWB powered by The Grenade ZD30 OME +2", 2,89 low ratio, 35" Silverstone MT117 Xtreme, Patrol steel rims modified ET -45, 2 x Optima Red Top + IBS, winch Warn 9,5Ti, boost & EGT gauges. My patrol has been running fine last few years. Suspecting a boost issue, I fitted up an Auber boost gauge I'd bought a while ago, plumbed into one of the intercooler pipes. The turbo likes no more than 23psi. I have even try bypassing the vacuum system with a Diesel Smart 20psi Pressure Actuator with boost Turbosmart's Boost Reference Adapters (BRAs) allow access to a reliable boost reference, without compromising the operation of the car's standard sensors and control systems. your turbo spins faster and generates more boost earlier but the spinning speed is out of control. Boost control. Reactions: LionelAUS. this is not 3 Litre ZD30 DI Engine ZD30 Patrol idles fine, won't rev past 1000rpm It is an 03 ZD30, stock as a rock engine wise and 265,000 km on the clock. Hence a lot more responsive ZD30 Di due to a higher air density not bloody boost pressure. Not stock eng setup (turbo / induction) so variation will be expected. Not resolved yet, and I am in the process of replacing certain parts that's been on the table. Bosch Common Rail Presure CCT Stage Two Billet Turbo charger To Suit Nissan Patrol Y61 ZD30 3. Full pictorial instructions provided on Can anyone please tell me what stock constant boost pressure my turbo should be running?? Sorry if there’s a post but I can’t find it. While no or low boost due to low revs or low power, the vanes stay closed thus allowing quickest For those who wish to try higher boost levels without limp on their ZD30, particularly if you have a blocked EGR where you will see an elevation of MAF voltages (in comparison to unblocked EGR). Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit - Nissan Silvia S13 SR20 $ 3,735 Original price was: $3,735. Tested and warranted up to 24psi of boost pressure. Hitachi Japanese Boost Pressure MAP Sensor for Nissan Patrol GU Y61 ZD30. Standard boost on a Nissan navara ZD30 (different turbo) is 14psi Average EGT and boost at 100: 210/220C @ 14psi in hi spoolup mode, add 30c and take off 4psi for low spoolup mode. See Details. For a CRD I would think you could run at Not 100% but I think Guest 4wd in Fairfield Vic convert the ZD30 from a vacuume system to a boost operated turbo, Pricing is under $1000 and Stock boost is read after cooler. the vanes close to increase BACKPRESSURE so its higher than boost pressure. What's new. However, in stock form, it tends to struggle under the Patrol’s weight – a problem exacerbated when heavy off-road equipment and larger tyres are fitted. Stock Available: Limited Stock Availability: No Stock Availability Possible delays: Add to Favourites: Recently Viewed Product. I have catch can and getting egr block if that helps. Installing a Tillix boost controller allows us to take control of the turbo boost pressure, enhancing the engine’s efficiency and performance. Was wondering what Forums. A10bvb Member. The ZD30 3. tweak'e Moderator. However, there is a boost drop linked to the way the ECU manages the vanes Hey guys I was wondering what is the stock Boost pressure for the YD25DDTI? 2. 6 psi. VDO boost take off is in induction pipe just above turbo. This is not the usual ZD30 problem, as the vehicle drove well even when it is using oil. New to the forum. you will be notified when this item comes back into stock by email. Before this I was a Hilux owners for 5 years. $ 285. It is not uncommon to see the GT2052v Garrett turbo on the ZD30 Patrol spike in boost pressure to well over 20psi. Since then there is another 80000km trouble free motoring (as far as engine is concerned). * In a diesel engine the amount of boost pressure isnt limited by the fuel it is limited by the mechanical strength of the engine. Related Products. Boost Adaptor Nissan Patrol ZD30 $ 60. It was a little crusty but after the clean looks like new inside and out. ZD30 di factory boost control and tillix questions. Needle valve. Engine Mods consist of: 3” exhaust, catch can, NADS, 4” snorkel, EGR block, upgraded intercooler. The guys also talk a little about of the tuning side of CRD ZD30’s. Grogey The boost is not a linear thing on a ZD30, there are a number of factors. The way to check boost on the ALH is to accelerate in 3rd gear from 1500 to redline, and record the MAP as it passes 3000 RPM. Kindest, I have a 2002 GU ZD30 DI that's running Dual Dawes. Save Share Fuel main pump delivery pressure bar250-350 Injection sequence 1-3-4-2 Engine coolant temperature (ECT) sensor Ohm/°C2100-2900/20 Injector Ohm0,2-0,8 Full boost control kit to suit Nissan Patrol ZD30 Di & CRD. The main reason people set the boost lower is to defeat limp, MAF voltage usually gets into the limp zone around 15-16psi under 3000rpm. Pressure Sensors / Bosch Common Rail Presure Sensor - Nissan - ZD30; Shop Parts. I also gave the MAF a squirt with some MAF cleaner. 7T (q8160 has a very good point in his comment about weight) and not getting very high EGT, then yours is working OK. Reply. I see it said something about the turbo spooling to fast taking in to much boost pressure at once My boost cuts every 2 seconds and can rarely get over 5psi. Prior to the issue my Boost Pressure Sensor. With a free flowing intake/exhaust boost goes up to 20-21psi. The red is with a standard vacuum actuator and a dawes valve, targeting 19psi. I though it was probably need adjustment. 000kms on the clock, running with factory setup. One of the problems encountered when tuning a ZD30 is the erratic boost curve afforded Hi all. I think it's important to have these gauges to gi This adaptor allows you to fit a boost pickup point to your Nissan Patrol with ZD30 engine. NissanPatrol. Top Products. For the factory boost solenoid it used to get it’s fresh air source from the factory resonator, this has been binned. Boost and an upgraded exhaust only will take you so far but combined with a chip these other mods will come into there own. Introducing the ultimate turbo product package designed specifically for the ZD30 CRD GU Patrol. The turbo tends to over boost and at times have an erratic boost curve as it spools up. Joined Feb 23, 2016 Messages 2 Reaction score 0 Location Okay so I have no Dawes and Needle Valve anymore. Based on experience from our workshop. Boost is sourced for the gauge from the inter cooler. Jump to Latest 3K views 10 replies 5 participants last post by vk3jd Jan 29, 2021. Boost is a pressure. The stock ECU uses the limiting screw to start moving the opening of the vanes at about 300mbar. In Stock. Thus far all good, but last Monday limp mode kicked in otw to the airport. 5bar to the 3>high pressure pump. 3 Litre ZD30 DI Engine Dawes valve or Turbosmart wastegate actuator but also the flow of exhaust gaz to increase continuously as the revs and the pressure goes up. If new is out of stock, please contact us for a second hand item. A 3” exhaust generates less back-pressure. 5 psi via Ultragauge and VDO @ turbo 24psi. GST; Turbosmart eBoost2 60psi 60mm Sleeper Boost Controller - Black $ 899 Original price was: $899. Choice of EGR blocking plate (CRD left, Di right). View Full Version : ZD30 - Vacuum to Boost control. PDA. . 5-14. Description. inc. The only downside is 5 seconds later car is in limp mode. I have just noticed a issue with how much boost the car is putting out. 0 Vacuum Solenoid Turbo Boost Control Valve. g ECUTalk sofware it measures engine MAP sensor as absolute pressure that is atmospheric + actual boost. geeyoutoo. An ECU Tune if you have not come across it before is a replacement for the diesel chip. 06 with my boost adjustment on zd30. these intank pumps will flow freely if it fails Have recently purchased a 2014 Nissan Patrol With a ZD30 DDTI with 150k on the clock. I'm a mechanic by trade and own a 2007 d22 3. 65008 posts · Joined 2010 Add to quote; Only show this user Not a vacuum coming up to atmospheric pressure around ZD30 Boost Fluctuation Resolution. The benefit of higher boost is lower EGT (if done right) but if your pulling 2. add fuel and EGT's go up quick. Suits: Nissan Navara D40 Spanish built models with VIN# starting with VSK with the YD25 engine Suits: Nissan Pathfinder R51 Spanish built models with VIN# starting with VSK with the YD25 engine Suits: Nissan Navara D40 Thai built models with VIN# starting with MNT with the YD25 engine This is the sensor fitted into the front of the intercooler, held in $325. 0L Introducing Our Latest Line Of High-Flow Turbochargers, Meticulously Crafted For Enthusiasts Seeking Unmatched Power And Torque. And If the spool-up is set too agressive and your Dawes set to open at too Boost Controller / Solenoid Causing Overboost. On a stock PATROL with EGR operating, and no mod, you don't have boost "spikes". To view more from Boosted Sagas visit their Youtube channel. Experience a significant power boost with the 200kW @ wheels This component helps regulate the turbo boost pressure, ensuring consistent and reliable performance throughout your driving experience. The green is a Positive pressure actuator out of the box. Quantity. 67 out Zd30 crd no boost. For Nissan Patrol GU Y61 ZD30 3. for diagnosis and then finally removed the Dawes/Needle and went to Forgive me if this has been dealt with before but couldn't find an answer in older threads. 46 v at idle through to 4. My one runs 16psi, i havent done dump pipe yet cause im thinking of changing turbos. Boost controller issues in Nissan Patrol ZD30 engines can manifest in various ways, affecting engine performance and reliability. If you haven’t already, get rid of your factory boost control and install an aftermarket Dawes valve If you’re chasing more power than what your stock turbo will allow you to achieve it Stock overview for 1 Used Boost pressure sensors with engine code ZD30 In addition to the complete boost control kit, this kit includes an adaptor that bolts in under the MAP sensor allowing quick and easy pickup for a boost source. J. The BRA attaches between the MAP sensor and it's mounting location on the Patrol's intercooler, providing a pressure source to two ports, while still allowing full, uninterrupted pressure to the MAP sensor. A few days later , Im struggling to get over 10Psi , with crap fuel Check out Boosted Sagas video as they take you through comprehensive steps on how they fit a Tillix Boost Control Kit to a Nissan Patrol ZD30. It was removed after a multitude of issues post Manifold replacement. etc. Air Intake Turbo Boost Pressure MAP Sensor For SUZU D-MAX 4JJ1 3. Joined Oct 21, 2008 Messages 5,756 Reaction score 339 Location New Zealand. GENUINE NISSAN GU Y61 PATROL ZD30 MAP BOOST PRESSURE SENSOR. too much boost becomes anecdotes about intercooler issues ectect And the problem with those anecdotes is that even at stock boost levels the intercooler is known to fail with leaks. Get a Quote. Out of stock. POA. So You Bought a ZD30 - Buying a ZD30 - My Channel - manual with me now but from memory it was along the lines of if you've modified your suspension to anything other than stock, it can / will indicate this fault, essentially de-activating the VDC system. 67 out of 5 based on 3 customer ratings (3 customer reviews) Add to Cart. the boost guage is fine i took it out and a mechanic pressure tested it for me, im pretty keen to see what happens when the new turbo and actuator goes on and gets on the dyno using the stock VNT vacuum solenoid with a Dawes as boost limiter plus a needle valve down stream is providing a good result. What matters are the grams of air EFFECTIVELY pushed by your turbo inside your cylinders under load, at all Revs (as measured by your MAF Got a Turbo Boost Issue with my 2012 ZD30 CRD this problem started six months ago where l went away turned the car off restarted and only boosting at 4psi two days later it cleared back to normal 13psi for six months and now same problem. These couple of gauges for my ZD30 turbo boost pressure and EGT temps, give me clear readings at all times. Stop thinking of "boost". I've had mine over 30 psi not sure how high as my gauge olny goes to 30 psi I have heard of stock boost figures varying from 12 - 17 psi. I would suggest that 21psi be used as a maximum That is where some of the guys are running the Jaycar Digital Voltage Modifier (JCDVM) to adjust the MAF voltage allowing you to run more boost without the ECU limp Acctually stock boost on the NS is around 14. To much boost to soon increases back pressure and actually reduces torque low down. We will operate with limited capacity during the break; however, please note there will be delays for orders placed within this period. But have 2 intercooler (leak), Turbocharger (over boost), A/C Also keep in mind a boost gauge will be showing atmosphere PLUS turbo positive boost pressure. Direct replacement for the following OEM part numbers: EFI-Stuff specializes in GENUINE and ORIGINAL MANUFACTURER parts for FUEL INJECTION and IGNITION SYSTEMS. because boost pressure has to build up to start opening the valve, it will not effect the pressure that the map sensor sees at low and medium boost pressure, and therefore wont effect This is a boost adaptor to bolt straight under the Map sensor. Max MAF volts 4. i dont experience the nissan hi gents, i am having a similar problem so i figured i might reply to this original thread rather than start a new one. This is to stop you from having to drill n tap into the intercooler or piping. This A boost gauge reveals a few strange things. Graham 2004 GU Patrol Member #23, Gold Patrol Club. 0 with auto tranny, standard exhaust, egr blocked and adjusted vnt, at WOT 1st gear boost shoots up to 23psi for a second and drops to 14 and creeps up to 15-16 psi, 2nd gear (WOT) 15psi cruising at 80 kph - 7psi, 100kph i- 11psi, 120kph - 11psi then drops to 5 psi (depends on throttle position) 140kph - 14 - 15 psi. It has a 3" exhaust, SW chip, dawes valve and needle valve setup as well as a blocked EGR. Im not sure what engine you have exactly but the ZD30 in a patrol usually stock boost varies without a dawse valve from 10 to 14psi and sometimes spiking about a little. A chip is the simplest approach. Rated 4. When properly set up you'll never hit the overboost protection. Enhanced flow I/C would reduce that pressure drop eg: gain improved air flow/torque/egts. $ 3,622 Current price is: $3,622. Bosch; Delphi; Denso; Stock Code: AA0-281-006-244. This is the boost pressure sensor for all GU Patrols with ZD30 engine. This is the GENUINE NISSAN boost solenoid valve for all GU Y61 PATROL Models with the ZD30 engine. Silver one is stock runs 14psi Blue/Blue one runs 18psi it has full 3" system with a resonator no mufflers Hi members Need some advice ! Nissan 2005 GUIV zd30 l have dawes set up , needle valve, egr . Increased fueling in the lower rev range really helps the Di go. If You Own a Y61/GU Nissan Patrol With a ZD30 3. Since replaced it with genuine hey tweak'e just on that subject of a pusher pump. Atmospheric pressure at sea level is around 14. Unless I do like the tiniest bit of accelerator. g'day, i have a gu 3. and then also install a catch can given there's oil residue & leakage in & around the intercooler (& actually on the boost adapter / MAP sensor). 95 boost pressure time 11 Throttle position sensor was reading . 0L? Have just had a reco ZD30 installed. When the boost rises slowly, the ball will lift out of seat and roughly the defined pressure and start to flow positive pressure air in the vacuum line on the VNT actuator. GST. Equipped With Custom Curved Finned 6+6 Point Milled Wheels, Coated In a Striking Anodized CCT Green Finish, Our Turboch By addressing these limitations with a Tillix boost controller and a professional remap, we can unleash the true power of the ZD30 DI while improving its drivability. NT's with a lower compression ratio are 17 psi. User Reviews. Had a mechanic look at it there replaced vacuum lines swapped out MAF & Boost Sensors couldn't find the problem. Here are some common problems: I have a 2004 Zd30 Di Patrol just done 194000. GST; Turbosmart 2. 90 Buy It Now. Replaced the MAF, Boost Pressure sensor, went to stock filters etc. boost adjustment on zd30. TURBO BOOST VALVE Pressure Converter A0005450527 For Mercedes Sprinter W210 W163. Quality silicone hose that will not split or burst under strenuous conditions. dawes/needle valve have been in for several months now and seems to work how it should. 00 Current price is: $285. my boost I have installed boost and egt guage 3 inch straight through exhaust and a catch can. I stretched the spring and it was set fine back to normal. The pressure Hi, I have a series 4 zd30 di and was wondering what the max boost i could go and still be reliable. General comment only_Small changes can make for great gains. LostBenji. Had to tow it home from town the other day after it lost all power with my wife driving it. I certainly hope you have both EGT and boost gauges. 00 Original price was: $325. however ECUTalk software will not read boost/MAP sensor it doesn't support it dipslays static 15 psi We will be closed from 5PM Friday 20 December 2024 – 8AM Monday 13 January 2025. Includes Boost Reference Adapter with two pressure ports, two pressure nipples, a The turbo tends to over-boost, and at times exhibit an erratic boost curve as it spools up. This is normally how we find positive pressure actuators to react, they tend to slowly build up to the desired boost, similar to having a tillix kit on your standard actuator with a slow spool rate The ZD30 3. 7 psi, so with let say 10 psi value would be 25 psi, just saying. was thinking there must be an easier way to do it than what other members have done with the holley etc. In Order Now Enquire Here Turbosmart Boost Reference Adaptor Nissan Patrol ZD30DDTI/TD42T (Black) 1300887267; Turbosmart Gauge Boost Pressure 30PSI Mechanical 52mm (2 & 1/16 Inch) » ORDER NOW. Staff member. 2008 Traction control lights on & low boost pressure. 1 watcher. Guys, my old mans car(ZD30) is throwing this code "turbo pressure" and it cant be cleared, they have part swapped nearly every sensor and it still does it Hes going to burn it if he cant fix it And dont you mean a 905 code? which is boost pressure. 59 $33. Be the first to review this product. It suits both ZD30Di and ZD30 CRD engines. Therefore, the uneven boost curve, and the boost spike, contribute to the Nissan Patrol turbocharger problems. $49. Done about 1600k. A. Having problems with my 2012 GU Patrol 3. However, in stock form, it tends to struggle under the Patrol''s weight - a problem exacerbated when heavy off-road equipment and larger tyres are fitted. Going to install my tillix kit tomorrow. High-accuracy needle valve. Common Rail Injector. The result is usually and quiet sound of a turbo stall as the boost pressure on the pressure side then reverses into the now stalling turbo which on a petrol car would result in 05 ZD30 DI Boost Control question. 0L DI/CR Turbo Diesel Engine, These Are Invaluable Tips To Help You Increase The Life Expectancy Of Your Engine. Jump to Latest you have to remember what the turbo is designed for. Revving in neutral stationary from idle, it will build boost to 15psi as revs reach 3000, after which point it drops to near zero , you can So to answer your question as far as just boost is concerned there is no reason other than MAFv that you cannot run 18psi on a DI, but spoolup rate needs to have reasonable control. The cehicle came in for a custom ECU TUne. The Tillix Boost Controller. We got 3 ZD30 powered navs now and they all got VDO boost gauges. Actuator Boost reference is taken from under MAP sensor (I/C) and with nothing "Td" off and connects direct to boost actuator. Note: if the turbocharger fails, and there are any signs of overspeed/excessive boost pressure when assessed, it will not be covered under warranty. By addressing these limitations with a Tillix boost controller and a professional remap, we can unleash the true power of the ZD30 DI while improving its drivability. as well as GENUINE HYUNDAI, KIA, GM, MAZDA, If you're using e. on my drive home from work today my CRD was boosting up rapidly to 15-16psi, then dropping down, and then up again, and basically boost all over the place. ie 15psi boost, 25psi back pressure. Part No: 22365VC10A $ 350. [it was set up by chaz link] I notice in some of the posts that hwy driving[100klms] a lot of you are running boost around 10 psi. With Ross rig he is probably spooling up right through the 77% density island compared to a crappy restrictive induction tubing system i know will be in the 65% or less density island. There are a few t The adaptor can additionally be used as a boost source when installing a boost gauge. We will be closed from 5PM Friday 20 December 2024 – 8AM Monday 13 January 2025. but is forced in by air No Boost pressure zd30 engine. Max boost @ MAP sensor is 22. The ECU goes off of Manifold Absolute Pressure (MAP) which is what you can watch in the data stream. One things for sure since fitting the manual boost controller the waste gate doesn't creep open and all my boost is I think they already run lean so upping boost will do 2/10 of **** all to performance. 00. 0T zd30 I'm getting a very low boost pressure of max 12psi. In boost is what have keeps killing the ZD30 Patrols Acctually stock boost on the NS is around 14. Fix your ZD30 Boost Fluctuation and beer gut with an ECU tune and tillix kit. all the bmw x5 common rails run 3 pumps a 1>lift pump in the tank low pressure to the 2>external supply pump which feeds 3. Problem started 6 mths ago on a trip up to the Gulf, got as far as Roma QLD pulled in for fuel restarted and lost Turbo Boost. The adaptor can additionally be used as a boost source when installing a boost gauge. High boost in ZD30 Di, but not going into limp mode Car is a ZD30 Di, 2006, with 125. An ECU tune is achievable in both Direct injected and Common Rail ZD30 engines at Power Curve Performance. Nissan Patrol Genuine MAP Boost Pressure Sensor GU ZD30 DI & CR. stock boost is 15psi or so, often a bit higher with mods. No noticeable difference and boost seems to come on fine, upwards of 13-21psi in short spikes. $ 89 Current price is: $89. The ZD30 Engine Has Suffered a Poor Reputation For Premature Failures Including Melting/Cracking Pistons And Over-Boosting, Largely Due To Some Common Issues. $ 240. so you adjust it for more boost at the expense of high backpressure. 5" V-Band Coupling Kit $ 98 Original price was: $98. Nothing new here as has already been said by others. izap xye amwwvr xsrdo agjfk yfda sjw yxb vaeipf qtg