How the heck do you read a turbine map?
05-27-04 | 03:26 PM
#1
Thread Starter
SCCA Rookie
Joined: May 2001
Posts: 1,936
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From: Sterling Heights, MI
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?
Anyone have any resources?
06-10-04 | 02:47 PM
#4
Full Member
Joined: Jan 2004
Posts: 229
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From: Orlando
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.
06-10-04 | 02:52 PM
#5
Rebreaking things
Joined: Jun 2001
Posts: 2,586
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From: 1 foot in Boston 1 in NJ
Take a look at this page.
http://cybrina.mine.nu/MR2_Docs/comp..._flow_maps.htm
http://cybrina.mine.nu/MR2_Docs/comp..._flow_maps.htm
06-10-04 | 09:30 PM
#7
Originally posted by CCarlisi
Take a look at this page.
http://cybrina.mine.nu/MR2_Docs/comp..._flow_maps.htm
Take a look at this page.
http://cybrina.mine.nu/MR2_Docs/comp..._flow_maps.htm
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06-15-04 | 02:11 PM
#8
Thread Starter
SCCA Rookie
Joined: May 2001
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From: Sterling Heights, MI
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'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'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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