I hope my terminology is correct.
Im teaching myself all about the Ideal Gas Law and its relationship to turbos / flow and engine demands.
But where does the compresser / turbine A/R sizing come into play? there is no correlation that i can find. How can i calculate proper housing sizes?
One program i ran suggested a 1.19 Exhaust housing (3.4L 8000rpm 85%ve)
But general consensus is that a 60ish A/R is about right for the amount of exhaust gas coming out of a 2.8-3.4
Please explain or point me in the right direction?
Relationship between A/R and compressor trim.
Moderators: The Dark Side of Will, Series8217
Relationship between A/R and compressor trim.
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Assuming you know what A/R is...
large A/R flows a lot of air through a large housing close to the CL of the turbine wheel. Thus, you need a lot of air to generate torque and spool the turbo.
Small A/R flows less air, but at a greater distance from the CL of the turbine wheel. Not as much air is needed to generate the same torque. Small A/R spools faster.
large A/R flows a lot of air through a large housing close to the CL of the turbine wheel. Thus, you need a lot of air to generate torque and spool the turbo.
Small A/R flows less air, but at a greater distance from the CL of the turbine wheel. Not as much air is needed to generate the same torque. Small A/R spools faster.