Frequently Asked Questions

DW注射器设计用于适合OE歧管和燃油轨。售后市场燃料轨和歧管的使用可能会导致一些装配问题。确保所有注射器部件完好无损,并未损坏。确保将O形圈与包含的超级润滑剂润滑。确保没有燃料轨道或歧管的OE部件缺失(垫片)。如果您更改为售后市场燃料导轨或进气歧管,请联系我们的技术支持,以了解确定我们的注射器是否适合您的申请,这将是谨慎的。

The size of injector needed depends on many different factors - power, fuel type, fuel pressure, etc. To get an estimation of what size you need, you can use our online燃料喷射器计算器。

我们建议一个40-80 PSI的系统工作压力,以获得最佳性能。最大压力取决于制造商的规格。博世EV14最大压力为8BAR或116 PSI(以16,17或18开始开头的部件号)。我们建议在Denso注射器上的7bar的最大压力为102psi(以21和22开始的部件号)。

所有DW注射器兼容乙醇燃料。

All of our injectors are compatible with MTBE-Oxygenated fuel except for the Bosch EV14 2200cc (part number 16s-xx-2200-x). This particular part number has an elastomer seal which can swell in the presence of MTBE and cause a flow restriction

Yes. Anytime you install larger than stock fuel injectors into your car, some sort of tuning (flash, piggy-back, stand-alone, etc.) will need to be performed for your car to run properly.

DeatschWerks does not modify injector flow rates as a service. Purchasing our high flow injectors is more economical, more convenient, and more reliable than modifying your OE injectors.

The majority of injectors are top feed. Top feed injectors sit under the fuel rail and side feed injectors fit inside the fuel rail. Side feed and top feed injectors cannot be interchanged unless a fuel rail conversion is performed.

The majority of injectors are high impedance. Low impedance (peak and hold) injectors have a resistance of between 2 and 4 ohms. High impedance (saturated) injectors have a resistance of between 10 and 14 ohms. Low impedance and high impedance injectors cannot be used interchangeably without modification of the injector drivers.

延迟是一种测量喷射器完全打开的时间所需的时间,一旦它收到信号到火灾。它通常以毫秒或微秒为单位测量,并且在调谐时是一个重要的参数。其他术语与延迟的代名词是停留,偏移,滞后等。我们通常使用术语电池偏移量。我们的一般表征摘要包括在各种压力和电压下的电池偏移。这些摘要可以在我们网站的资源部分中找到。

Yes, increasing fuel pressure will INCREASE the flow rate of the injector. DW injector flow rates are calculated at 3 bar (43.5 psi) of pressure. Although DW injectors are able to operate at pressures in excess of 100 psi, we suggest a system pressure of 40-80 psi for best performance (faster injector response times, optimized spray patterns, and increased reliability of your entire fuel system). There is a calculator on the resources section of our website that will calculate your injectors’ flow rate at different pressures.

Injectors are controlled by the ECU. Many times, the injectors being installed are at least double the size of the stock injector. Without telling the ECU then injectors being controlled have a different flow rate, the ECU will not be able to properly control the pulsing of the injectors. Many times, the engine will not be able to start with the stock tune driving higher flowing injectors. Your tuner may be able to send a temporary base tune that will allow you to drive the car to them for a proper tune.

DW injectors are covered by a comprehensive3-year warrantyfor the original purchaser.

DW injectors are sold in flow-matched sets. Please fill out aSupport Ticketon the DW site to discuss what options are available.

O-ring kits are available for many all DW injectors. Contact us for your particular needs. We also have injector services available that will include new O-rings, seals, and filters along with the other benefits of the service.

While there is no set maintenance schedule for having injectors serviced, 3-4 years of use would be a manageable service interval. A service can also be recommended to help diagnose fuel system issues.

虽然我们不可能在市场上评估所有燃料系统清洁剂,但通常它们与我们的喷射器兼容。在我们的经验中,燃料系统清洁剂更好地表现出预防性维护,如果您有现有的燃料交付问题,则没有持久的效果。如果燃油系统清洁器不纠正您的问题,可能需要注射器服务。

Some of our injector lines are substantially larger flowing injectors than stock. Slightly elevated noise is a characteristic of a larger injector and is normal. In-line fuel pulsation dampers can often help decrease injector noise.

有几个变量算用于针对特定马力的注射器尺寸:燃料类型,数字注射器,燃料系统压力等。找到最佳的注射器尺寸,请使用我们的在线fuel injector calculator.

——HDEV1700是dropin装修对于许多应用lications, which utilize the Bosch HDEV5 injector platform. This includes the popular 2.0L, 2.3L and 3.5L Ford EcoBoost engines. To keep up with what is new and current in the DW line up, follow ourDW Facebook page, 我们的DW news page,并注册DW newsletter.

Due to the popularity of top-feed injectors, there are several products available in the market that are designed with the purpose of using a standard injector size.

我们的universal injector line有3个最常见的喷射器高度,有许多不同的流速。

We also have aconversion kitfor Subaru side feed to top feed that can be found on our Web site.

Application specific data is obtained by formatting the general characterization data into the parameters required for that specific application. This data is then tested in-car and values are optimized to account for differences between in-lab and in-car variables. This optimization process is why sometimes the General Characterization Summaries will differ from the application specific data.

All characterization data of DW fuel injectors is collected and calculated in-house. The process involves collecting and analyzing over 450 data points on 4 standardized fuel injectors representative of the specific injector part number being tested. All data is collected in-house via calibrated digital turbine flow meters and fully programmable injector drivers. Testing procedures are performed in accordance with SAE J1832. Our offsets are calculated via linear regression from 5 different pulse widths, 4 different voltages, and 4 different pressures. Data between the tested voltages and pressures is interpolated.

All DW pumps are covered by a 3-year comprehensive warranty for the original purchaser. The only exception is the OE replacement DW100, which has alimited lifetime warranty.

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DW泵与基于乙醇的燃料相容,如E85。使用基于乙醇的燃料不会阻止您的保修。此外,DW300,DW300C和DW350IL在其设计中具有特殊的功能,以增强与基于乙醇的燃料一起使用的寿命。

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所需的燃料泵的尺寸取决于许多不同的因素 - 电源,燃料型,燃料压力等,以估计需要尺寸的泵,您可以使用我们的在线燃油泵计算器.

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All in-tank DW fuel pumps utilize turbine impellers which are compatible with PWM controllers. DW in-line fuel pumps are positive displacement pumps and are not compatible with PWM controllers.

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Yes, our pumps can be used in conjunction with a BAP to increase voltage for brief periods of time to meet flow demand under full load conditions. All of our pumps have been tested at voltages ranging from 12v to 20v. Data of flow rates are not published, but are available upon request. We do not recommend using voltages in excess of 20v. We do not recommend running excess voltage for periods longer than 120 seconds.

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Yes, DW pumps have a pressure relief valve (PRV) that opens beyond 100psi. Do be advised that all fuel pumps, including DW decrease in flow rate as pressures increase. We provide onlineFlow vs Pressure datafor all DW fuel pumps.

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There are several variables to account for when sizing a fuel pump for a specific horsepower figure: fuel type, fuel system pressure, voltage, etc. To get an idea of what pump you need, we have an在线燃油泵计算器available.

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GDI fuel systems utilize 2 different fuel pumps, a high-pressure crank-driven pump and an in-tank lift pump. DW pumps can be used in the fuel tank as a higher flowing upgrade to the OE in-tank lift pump.

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Late model, high performance applications have larger diameter fuel pump wiring, so a hardwire kit may not be necessary. On older applications, especially those that were not originally manufactured for high power, the fuel pump wiring is often insufficient to supply a high flow fuel pump. In these cases, a hardwire kit is a good option to get the most flow out of your DW pump. Special considerations needed when using in conjuntion with a pulse-width modulated pump controller. Contact tech support for more information.

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It is always recommended to use a DW application-specific kit when available. The DW application specific kits will provide the best fitment, ease of installation, highest performance for your vehicle. When an application specific kit is not available, our universal pump kits can usually provide the parts needed for an installation.

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A properly designed port manifold fuel filtration system is comprised of staged filters. A 100 micron filter element should be installed between the tank and the pump and a 10 micron filter element should be installed between the pump and the injectors.

DW在线滤波器可在3个罐尺寸中提供。较大的罐尺寸提供更少的流量限制和增加的服务间隔。小罐尺寸提供更紧凑的安装。流量限制数据可在产品技术页面上获得。

一个孔径并不比另一个更好。需要不同的微米额定值来保护不同的燃料组分。作为拇指的规则:100微米用于燃油泵,40微米用于化油器,用于歧管喷射器10微米,直接喷射器为5微米。

如果罐内泵配有足够的预过滤器(过滤器袜子),则在燃料喷射器之前安装的单个10微米过滤器是所需的。

Bosch recommends a filter element with a mean pore size of 10-microns for port manifold injection. Using a smaller mean pore size will introduce an unnecessary restriction in to the fuel delivery system.

Per the Bosch Automotive Handbook (9thedition 2014) “The required filter fineness is dependent on the fuel-injection system. For systems with manifold injection, the filter element has a mean pore size of approximately 10-microns. Finer filtering is required for gasoline-direct injection. The mean pore width here is in the range of 5-microns”. The vast majority of high performance fuel systems utilize manifold injection and therefore, a 10-micron filter element is appropriate.

Yes, all DW in-line filters feature stainless and anodized aluminum internals and are e85 compatible.

柴油燃料系统的汽油燃料系统具有不同的过滤要求。DW在线滤波器专为汽油燃料喷射系统而设计。

The filter canisters have female –8AN ORB ports. Larger, -10AN ORB endcaps are available upon request.

To minimize cost and maximize flexibility, fittings are sold separately. DW offers fittings to adapt the filter port to a male 3/8 barb, male 5/16 barb, male -6AN, male -8AN, or male -10AN.

Yes, DW in-line filters are superior to typical OE fuel filters. Upgrading to a DW filter will usually result in decreased fuel flow restriction, increased service-interval, and longer fuel system component life.

所需的服务间隔取决于filter volume and fuel contamination. We recommend a service interval of 12-months or 12,000 miles.

A basic service would include removing the filter element from the canister and back-flushing with solvent. Advanced filter services may additionally include Ultrasonic cleaning and post cleaning flow testing.

There are 3 main reasons to upgrade your OE pressure regulator:

  1. When the stock fuel pump is upgraded to higher flowing unit
  2. When the customer wants base pressure adjustability
  3. When aftermarket rails are installed and the OE regulator is eliminated

The DWR1000 has a multi-positional mounting bracket for easy installation. In a return-style fuel system, the regulator is mounted in the engine bay shortly after the fuel rail. In a returnless-style fuel system, the regulator is remote mounted anywhere between the pump and the fuel rail. Technical Support is available to help you determine the best placement for your set up.

Yes, the DW regulator can be mounted in any orientation with no effect on function.

The DW regulators can be used with or without manifold reference. With manifold reference will yield a constant delta pressure. Without manifold reference will yield a constant rail pressure. Contact Technical Support for more information.

The DW fuel pressure gauge is a dry gauge. Liquid filled gauges can give inaccurate readings with elevated under-hood temperatures.

To minimize cost and maximize flexibility, fittings are sold separately.

DW regulators are designed and tested for e85 compatibility. All our regulators are constructed of anodized aluminum and stainless steel internals.

The DWR1000 has dual -6AN ORB inlets and a single -6AN ORB outlet.

The DWR1000 has dual inlets for maximum plumbing flexibility. A plug is included if only one inlet is needed in your application.

不,它只与端口歧管燃料喷射兼容。

There are 2 common instances when a surge tank is a good option for your fuel system…

  1. When your car will be experiencing extreme G-forces when at the track, a surge tank supplies a “reserve” supply of fuel to avoid fuel starvation. Most vehicles that drag race, road race and drift are all good candidates for a surge tank.
  2. When you need to add additional fuel and do not want to replace the OE fuel tank or in-tank pump a surge tank can provide a very flexible and easy to install auxiliary fuel supply.
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The 2.5L pump with one pump holds 2.31L and holds 2.13L with two pumps. The 3.5L with one pump holds 3.25L and holds 2.98L with two pumps. Check out our浪涌坦克技术页面欲获得更多信息。

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To minimize price and maximize flexibility, the DW Modular Surge Tanks do not include fittings.

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The surge tank is not designed to hold more than 15psi of pressure. A vent line from the surge tank to the OE fuel tank should always be utilized per install instructions. If the surge tank is pressurized, it will not perform properly and may leak.

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A surge tank can be a great alternative to a fuel cell. Be sure to check with your racing regulations.

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The best places to mount a surge tank vary with the application. Popular mounting locations are trunk and frame rail. Be sure to carefully consider safety when choosing an installation location. A location should be selected that is protected from physical damage, is easy to access, and will not be exposed to extreme heat.

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Engine舱不是肯定坦克安装的良好位置。燃料储存器不应靠近点火源。此外,升高的发动机舱温会使电涌罐中的燃料加热,这可能导致发动机爆炸和缩短的燃油泵寿命。

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A surge tank is often easier to install and less expensive than a multiple pump hanger. In addition, the surge tank will eliminate fuel slosh and low tank pick up issues.

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Since the surge tank feeder pumps (in-tank) will be operating at essentially 0 psi, high power pumps are not needed. Often the OE pump is all that is required. The size of the feeder pump required will be dependent on the part number and quantity of in-line pump installed. The DW Modular Surge Tank Tech sheets found on the website provide popular combinations for a given power level.

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