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DP ProjectsNew Products

Peugeot 206 GTi 2.0 16v itb turbo


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Peugeot 106 GTi 1.6 16v turbo


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Peugeot 206 RC 2.0 16v turbo


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Peugeot 205 DP drag car


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Peugeot 406 2.0 8v turbo


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Citroën Saxo VTS 1.6 16v turbo


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Peugeot 206 CC 2.0 16v turbo


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Peugeot 206 RC 2.0 16v turbo


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Peugeot 106 GTi 1.6 16v turbo


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Peugeot 306 GTi 2.0 16v turbo


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Peugeot 406 V6 3.0 24v turbo


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Citroën ZX 2.0 16v turbo


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Peugeot 206 1.4 8v Twin Turbo Supercharger

After numerous exterior modifications and with plans for even wilder ones Antwan, owner of the 206, came to us with the question if we could make his engine bay match the extreme exterior the car was going to have, after all a proper show car also needs things sorted under the hood. He wanted to stick with a small capacity eight valve engine but, of course, with 'a bit' more bite.

The plan is to stay, initially, with a stock 1360 cc bottom end but to have an engine setup that has the potential to go far beyond the limits of the oem internals, yet retains drivablitiy.

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Peugeot 205 XS 1.6 16v turbo


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Peugeot 206 XS 1.6 16v turbo


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Peugeot 205 CTi 1.9 16v turbo


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ARP head stud kit TU5J4 and TU5JP4

ARP head studs

Create optimal cylinder head-to-block sealing with our ARP head stud kit!


Now also available for all TU 16v engines!



ARP head stud kits, a great deal for the best seal!



Price 180,26 Euro Incl. VAT

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MSD ignition upgrades

MSD ignition coil

Need a stronger spark? A coil that won't fail under higher loads?

Check our ignition upgrade products!


Upgrade your existing wires or the complete ignition system!



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Vems PnP for 306 GTi6 and Xsara VTS

Standalone Vems PnP for 306 GTi6 and Xsara VTS

Plug and play standalone programmable ECU especially made for the 306 GTi6 and Xsara VTS.

Installing a programmable management system has never been this easy;

Just click it on and start tuning!

Comes with optimized settings for a stock engine.

Price 827,80 Euro Excl. VAT

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Vems PnP for 106 GTi and Saxo VTS

Standalone Vems PnP for 106 GTi and Saxo VTS

Plug and play standalone programmable ECU especially made for the 106 GTi and Saxo VTS.

Installing a programmable management system has never been this easy;

Just click it on and start tuning!

Comes with optimized settings for a stock engine.

Price 820,40 Euro Excl. VAT

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Peugeot 206 Front Mount Intercooler

Peugeot 206 Front Mount Intercooler

The latest addition to our range of performance products for the Peugeot 206 is a large front mount intercooler that can be installed behind a stock front bumper.

Can be ordered with high flowing Spal slim radiator fan.
Fits all petrol Peugeot 206 models, including vehicles with airconditioning!

Price 685,98 Euro incl. VAT

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TiAL 50mm Blow Off Valve

TiAL 50mm Blow Off Valve

Always in stock;

One of the highest flowing and best looking valves on the market;

the TiAL Bv 50mm


Can be ordered with aluminum or stainless weld flange.



Price 233,86 Euro incl. VAT

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Volvo 'TopMount' Turbo Manifold

Volvo 8v and 16v turbo manifold 'TopMount'

Now available; our new equal length turbo manifold 'TopMount' for the Volvo 8v and 16v B2*-series engines in the 24*, 740, 760 and 940 models!


Can be ordered with different turbine flanges and external wastegate connection.



Prices from 882,71 Euro incl. VAT

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Wiseco forged piston sets in stock!

Wiseco piston kit for TU5JP4

Having to wait two to three months for a set of forged pistons to arrive can be very annoying, to speed up that process we now stock low compression Wiseco piston sets for various Citroën and Peugeot engines.


All piston sets come with piston rings, wrist pin and pin clips.



Prices from 680,68 Euro incl. VAT

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New DP-Engineering TopMount B-series Manifold

FRT-TopMount

Now available; our new equal length turbo manifold for the Honda B-series engine!

Supports twin scroll applications!

Can be ordered with different turbine flanges and single or twin external wastegate connections.



Price from 946,70 Euro incl. VAT

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New DP-Engineering V6 24v Turbo Manifold

Citroën and Peugeot V6 24v Turbo Manifold

Now available; our new turbo manifold for the ES9J4(S) engines of Citroën and Peugeot!

Fits the 2946 cc 24 valve engines.

Can be ordered with different turbine flanges.




Price 1980,- Euro incl. VAT

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New DP-Engineering EW 16v Turbo Manifold

Citroën and Peugeot EW 16v Equal Length Turbo Manifold

Now available; our new equal length turbo manifold for the EW 16v engines of Citroën and Peugeot!

Fits the 1.8, 2.0 and 2.2 L EW 16v engines.

Can be ordered with different turbine flanges and external wastegate option.

Stainless 3" downpipe available for the Peugeot 206 GTi.

Price from 931,88 Euro incl. VAT

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New DP-Engineering Honda B-Series Turbo Manifold

Honda B-Series 'Ramhorn' Turbo Manifold

This manifold, made from high quality stainless steel, does not only have stunning looks but also features a true low angle merge collector and thick walled high flowing runners to ensure optimal performance and reliablity.

Fits all Honda B-Series engines.

Available with different turbine flanges and external wastegate option.

Price from 749,- Euro incl. VAT

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VEMS Wideband O2/EGT Sensor

 VEMS Wideband Gauge, also available with 'smoked' screen

New VEMS Wideband O2/EGT Sensor, much more then 'just' a wideband controller! You simply can't afford not to know what it is!

Key features

Wideband Oxygen sensor control and display.
Exhaust Gas Temperature sensor display.
Narrow Band sensor output

Complete kit, including wideband sensor, for 296,31 Euro incl. VAT

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Technology Basic turbo technology

How a Turbo System Works

Engine power is proportional to the amount of air and fuel that can get into the cylinders. All things being equal, larger engines flow more air and as such will produce more power. If we want our small engine to perform like a big engine, or simply make our bigger engine produce more power, our ultimate objective is to draw more air into the cylinder. By installing a Garrett turbocharger, the power and performance of an engine can be dramatically increased.

So how does a turbocharger get more air into the engine? Let us first look at the schematic below:
 A Turbo System
Click to enlarge

  1. Compressor Inlet
  2. Compressor Discharge
  3. Charge air cooler (CAC)
  4. Intake Valve
  5. Exhaust Valve
  6. Turbine Inlet
  7. Turbine Discharge

The components that make up a typical turbocharger system are:

  • The air filter (not shown) through which ambient air passes before entering the compressor (1)
  • The air is then compressed which raises the air’s density (mass / unit volume) (2)
  • Many turbocharged engines have a charge air cooler (aka intercooler) (3) that cools the compressed air to further increase its density and to increase resistance to detonation
  • After passing through the intake manifold (4), the air enters the engine’s cylinders, which contain a fixed volume. Since the air is at elevated density, each cylinder can draw in an increased mass flow rate of air. Higher air mass flow rate allows a higher fuel flow rate (with similar air/fuel ratio). Combusting more fuel results in more power being produced for a given size or displacement
  • After the fuel is burned in the cylinder it is exhausted during the cylinder’s exhaust stroke in to the exhaust manifold (5)
  • The high temperature gas then continues on to the turbine (6). The turbine creates backpressure on the engine which means engine exhaust pressure is higher than atmospheric pressure
  • A pressure and temperature drop occurs (expansion) across the turbine (7), which harnesses the exhaust gas’ energy to provide the power necessary to drive the compressor
 Components of a turbocharger
Click to enlarge

What are the components of a turbocharger?

The layout of the turbocharger in a given application is critical to a properly performing system. Intake and exhaust plumbing is often driven primarily by packaging constraints. We will explore exhaust manifolds in more detail in subsequent tutorials; however, it is important to understand the need for a compressor bypass valve (commonly referred to as a Blow-Off valve) on the intake tract and a Wastegates for the exhaust flow.



Other Components

 Blow-Off (Bypass) Valve
Click to enlarge

Blow-Off (Bypass) Valves

The Blow-Off valve (BOV) is a pressure relief device on the intake tract to prevent the turbo’s compressor from going into surge. The BOV should be installed between the compressor discharge and the throttle body, preferably downstream of the charge air cooler (if equipped). When the throttle is closed rapidly, the airflow is quickly reduced, causing flow instability and pressure fluctuations. These rapidly cycling pressure fluctuations are the audible evidence of surge. Surge can eventually lead to thrust bearing failure due to the high loads associated with it.

Blow-Off valves use a combination of manifold pressure signal and spring force to detect when the throttle is closed. When the throttle is closed rapidly, the BOV vents boost in the intake tract to atmosphere to relieve the pressure; helping to eliminate the phenomenon of surge.

Wastegates

 Internal Wastegate
Click to enlarge

On the exhaust side, a Wastegates provides us a means to control the boost pressure of the engine. Some commercial diesel applications do not use a Wastegates at all. This type of system is called a free-floating turbocharger.

However, the vast majority of gasoline performance applications require a Wastegates. There are two (2) configurations of Wastegates, internal or external. Both internal and external Wastegates provide a means to bypass exhaust flow from the turbine wheel. Bypassing this energy (e.g. exhaust flow) reduces the power driving the turbine wheel to match the power required for a given boost level. Similar to the BOV, the Wastegates uses boost pressure and spring force to regulate the flow bypassing the turbine.

 External Wastegate
Click to enlarge
Internal Wastegates are built into the turbine housing and consist of a “flapper” valve, crank arm, rod end, and pneumatic actuator. It is important to connect this actuator only to boost pressure; i.e. it is not designed to handle vacuum and as such should not be referenced to an intake manifold.

External Wastegates are added to the exhaust plumbing on the exhaust manifold or header. The advantage of external Wastegates is that the bypassed flow can be reintroduced into the exhaust stream further downstream of the turbine. This tends to improve the turbine’s performance. On racing applications, this Wastegated exhaust flow can be vented directly to atmosphere.

 
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 Newsletter

06 Feb 2010
Vems PnP systems; NEW SOFTWARE, new features!

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