Single Turbo RX-7's Questions about all aspects of single turbo setups.

How the heck do you read a turbine map?

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Old 05-27-04, 02:26 PM
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How the heck do you read a turbine map?

I know compressor maps, they're easy to understand (there's plenty out there on how to read them), but I have no clue what each turbine map means.

Anyone have any resources?
Old 05-29-04, 03:27 PM
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nobody knows this answer on here? No way.
Old 06-10-04, 08:37 AM
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anybody...
Old 06-10-04, 01:47 PM
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I'm pretty sure that you read the inner circle. That's where the turbo is most efficient, in that range. Ussually it's some were near 74%, that range tells you were the turbo is efficient. After you leave the inner circle your turbo losses efficiency (power), which often happens with smaller turbo's. For example on a t25 though you're boosting 18 psi you're making less power than you were at 14 psi, because the turbo is not really efficient passed 15 psi.
Old 06-10-04, 01:52 PM
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Take a look at this page.
http://cybrina.mine.nu/MR2_Docs/comp..._flow_maps.htm
Old 06-10-04, 05:16 PM
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The turbine map is what you'd use after you've plotted the compressor map to find your speeds and efficiencies.
Old 06-10-04, 08:30 PM
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Originally posted by CCarlisi
Take a look at this page.
http://cybrina.mine.nu/MR2_Docs/comp..._flow_maps.htm
Excellent Link, thanks
Old 06-15-04, 01:11 PM
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Originally posted by FC Alex
I'm pretty sure that you read the inner circle. That's where the turbo is most efficient, in that range. Ussually it's some were near 74%, that range tells you were the turbo is efficient. After you leave the inner circle your turbo losses efficiency (power), which often happens with smaller turbo's. For example on a t25 though you're boosting 18 psi you're making less power than you were at 14 psi, because the turbo is not really efficient passed 15 psi.
I know how to read a compressor map.

I'm talking about a turbine map.

That link seems to help a little bit, with the exducer bore information, but doesn't say anything about the turbine map.
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