Turbo kit - Toyota Yaris Forums

Nexus1155 · 11-22-2009, 11:40 AM

your English isn't as bad as you think don't worry hahaha just a little mixed up.

There are some calculations you have to do compared to engine size in correlation of what turbo to choose for your application and where full boost comes on. I was never good at reading those maps anyways.

But obviously a GT25 will spool earlier than a GT28 and a GT28 will produce more power at the same boost levels depending because it flows more air. But the GT25 will probably boost the whole range of the RPM, on a yaris you will probably never go past its efficiency level for it to matter. and obviously a GT28 one will too, but just produce full boost later on

Hope this helps you out a bit.

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11-22-2009, 11:40 AM	#14
Nexus1155 Bathroom + Laptop = <3 Drives: Audi Join Date: Aug 2006 Location: Dorchester Posts: 1,009	your English isn't as bad as you think don't worry hahaha just a little mixed up. There are some calculations you have to do compared to engine size in correlation of what turbo to choose for your application and where full boost comes on. I was never good at reading those maps anyways. But obviously a GT25 will spool earlier than a GT28 and a GT28 will produce more power at the same boost levels depending because it flows more air. But the GT25 will probably boost the whole range of the RPM, on a yaris you will probably never go past its efficiency level for it to matter. and obviously a GT28 one will too, but just produce full boost later on Hope this helps you out a bit.