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air flow of a 20g-gt30

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Old 21 October 2005, 08:02 AM
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Default air flow of a 20g-gt30

anyone know the aiflow of a 20g-gt30 in cubit feet per minute so i can compare
Old 21 October 2005, 07:44 PM
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AndrewC
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What's a 20g-gt30 ???
Old 21 October 2005, 11:03 PM
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is it me or something but i said i want to compare the turbos my english may not be perfect but surely people know what a 20g is and also a gt30
Old 22 October 2005, 01:59 PM
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Yes but you didn't say you wanted to compare a 20G with a GT30 ?

You can't generically compare a compressor wheel (20G) with a range of turbos (GT30).

You need to define exactly which turbos you want to comare

As a guide the highest flowing 20G based turbo is not going to exceed around 650cfm, whereas then smallest GT30s start at around 700cfm.

Andrew...
Old 22 October 2005, 04:08 PM
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thanks for that i now hae the info that i need
Old 22 October 2005, 04:10 PM
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what about a td05 16g or 18g
Old 23 October 2005, 08:46 AM
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16G about 520cfm
18G about 590cfm

Delivery is different though as 18G is a bigger wheel and needs lower rpms to generate flow.

Andrew...
Old 23 October 2005, 10:20 AM
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20G is good for circa 400bhp, "GT30R" is good for 500bhp all day long. There are other GT30 series turbos, that are good for closer to 600bhp.

Mark.
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