Turbo what is trim

When it comes to compressor wheel selection, lean towards a large trim rating in a smaller wheel instead of going to a larger wheel. Larger wheels are heavier and rotational weight equals lag. The trim of a wheel, whether compressor or turbine, affects performance by shifting the airflow capacity. All other factors held constant, a higher trim wheel will flow more than a smaller trim wheel.

However, it is important to note that very often all other factors are not held constant. So just because a wheel is a larger trim does not necessarily mean that it will flow more. We are Diesel - Hell Yah!

This is where the air exits and into the compressor or exhaust housing. This may increase the amount of turbo lag you experience, but it will also allow your engine to operate far more efficiently at high RPM. This provides faster turbo response but increases backpressure and limits how effectively the engine can breathe.

When shopping for the right turbocharger, or picking the best turbo the size of your turbo wheel trims is paramount. Your turbocharger inducer is usually smaller than the exducer. For example you can use a HKS turbo as a solid example for the turbo wheel trim calculation shown. For our example this HKS turbocharger has been measured already, with the following measurements.

By putting The values of your turbo wheel trims gives you the ability of the airflow capacity of your turbocharger. This site uses Akismet to reduce spam. Forums New posts Search forums. Events New events. Log in Register. Search only containers. Search titles only. Search Advanced search….

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