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| performance:turbocharging [2020/04/28 22:52] – ben | performance:turbocharging [2026/04/09 16:47] (current) – external edit 127.0.0.1 | ||
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| ===== Other Considerations on Turbo Selection ===== | ===== Other Considerations on Turbo Selection ===== | ||
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| + | ==== Bearings ==== | ||
| Generally most older turbochargers will use a journal bearing that only requires oil to lubricate and cool the bearings. | Generally most older turbochargers will use a journal bearing that only requires oil to lubricate and cool the bearings. | ||
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| A ball-bearing turbocharger with a billet compressor wheel will spool faster and have more room to make power than a similarly sized journal bearing turbo. | A ball-bearing turbocharger with a billet compressor wheel will spool faster and have more room to make power than a similarly sized journal bearing turbo. | ||
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| + | ==== Compressor Wheel ==== | ||
| Some turbos will also have billet aluminum compressor wheels that will help speed up the spool times due to the decrease in rotating mass. | Some turbos will also have billet aluminum compressor wheels that will help speed up the spool times due to the decrease in rotating mass. | ||
| - | Other main factors that can improve spool times are variable vane turbos, | + | Other main factors that can improve spool times are: |
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| + | * variable vane technology usage | ||
| + | * twin-scroll turbine housings | ||
| + | * size of the turbine housing | ||
| + | * A/R ratio of compressor and turbine housing | ||
| + | * camshaft selection | ||
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| + | However there a lot of other things that play a big factor here as well. This are just some of the more commonly discussed heavy hitters. | ||
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| + | ===== Resources ===== | ||
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| + | [[https:// | ||