Most of the time, the size of the turbine depends on its wheel’s exducer diameter, or the part of the wheel air passes over last. A larger bore in the housing will typically yield more power. Sort of. The trick is keeping the turbine wheel’s diameter within 15 percent of the compressor wheel’s, give or take.

How do I know my turbo size?

A turbocharger’s A/R (aspect ratio) typically is the number that is cast into an exhaust-turbine housing that identifies the size of the housing, from the inlet to the radius from the center of the turbine wheel. Basically, the larger the number, the bigger the housing.

How do you measure T3 and T4 turbo?

T3, T25/T28, T4 and T6 are all very familiar names in the turbo industry. The dimensions of the turbo blankets are based on 2 simple measurements. The first measurement is de circumference excluding the flange. The second measure is the width of the turbo at its widest point excluding the flanges.

What MM is a T3 T4 turbo?

48.4 mm
STS Turbo Journal Bearing Turbocharger – 48.4 mm T3/T4 – 0.36 A/R.

What is turbo a R ratio?

Aspect Ratio (AR) is commonly used to indicate a turbocharger housing size. The Aspect Ratio (AR) is the ratio of the area of the exhaust turbine inlet to the radius from the turbine impeller center. A smaller turbine housing builds pressure and turbine speed quickly.

What size is an 18G turbo?

Turbo Sizing Chart for Mitsubishi / Greddy Turbochargers

How do I know the right size turbo to use?

It is not always easy to know the best size turbo to use for a new application. This helps you select the right size turbo. Works with air-to-air intercoolers, air-to-water intercoolers, or no intercoolers. The compressor map calculation can be used to fine-tune the turbocharger sizing recommendation.

What is the size of a 52 trim Turbo?

This turbo has an 88mm tip diameter 52 trim compressor wheel with a 64.45 mm inducer. As you can see, this point falls nicely on the map with some additional room for increased boost and mass flow if the horsepower target climbs.

How do I choose the best performance turbocharger?

Choosing a performance turbocharger starts with a horsepower target. Each turbocharger is designed to support a specific range of horsepower and engine displacement. If a turbo is too large for your engine, you will have a lot of turbo lag, and if a turbo is too small for your engine you may not reach your horsepower target.

Should I upgrade to a CT12 manifold from CT9?

If the ct12 fits the 4efte stock manifold, this can be a much easier upgrade than spending thousands on a td04l kit. (from what i can tell) apparently they flow minimaly better than the ct9. i have had a ct12 from a 1G-GTE engine….tested before my td04l and H…