Turbo upgrade options Volvo B230 engine
Getting more power out of a B230 is one of the first steps for many Volvo owners when it comes to tuning. A manual boost controller is a nice start to get to 160-180hp; for those who want more, a turbo upgrade is essential!
TD04H-15G
A common upgrade is the turbo from a Volvo 850 T5. This is readily available used, as a considerable number of this type of Volvo can now be found in scrapyards. The turbo you'll find on the T5 engine from an 850 is the TD04-15G, which is an excellent replacement for the small standard TD04-13C. On a B230 turbo engine, you can expect around 220hp in combination with the correct accompanying upgrades such as: chips, injectors, etc.
The TD04H-15G is pretty much "bolt-on"; it can easily be mounted on the original manifold. The turbo will probably need to be clocked to ensure that the oil supply comes from above and the compressor housing points in the correct direction. Clocking a turbo simply means rotating the core, the turbine housing, or the compressor housing relative to the other components.
Both turbos have a conical flange, which ensures that the original downpipe can be fitted without too many modifications.
TD04- 16T/18T/19T
Do you want to tackle it properly right away and increase the power to approximately 300hp? The TD04 16T, 18T, and 19T are often chosen and now proven options when it comes to achieving higher power from a Volvo 740/940 B230 turbo engine. These turbos are also very readily available through various webshops from Sweden and Norway for around €600. You won't often see these turbos come up used on ad sites like Marktplaats or Ebay.
Mounting these turbos requires not only fitting the correct injectors, chips/standalone ECU, and large MAF but also other modifications to the Volvo. With these turbos, several things need to be clocked so that they can be used on the B230 engine. A consequence of clocking is that the wastegate actuator ends up in a different position. However, this can be easily remedied with our wastegate actuator bracket which brings everything back into the correct position.
Another important item is the downpipe. These turbos use a flat flange instead of the conical flange that the standard downpipe of a B230 engine has. This means that a custom downpipe needs to be made, which is advisable anyway to get the most out of these turbos. An upgrade to 3 inches is definitely recommended.
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