NA swap 1999 NB8, Garett 2560 at 11psi, 3" exhaust, water injection, FM Manifold - Miata Turbo Forum - Boost cars, acquire cats.

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Old 11-01-2011, 06:26 AM   #1
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Default NA swap 1999 NB8, Garett 2560 at 11psi, 3" exhaust, water injection, FM Manifold

The list is as follow:
- Adaptronic
- FM Manifold and turbo outlet
- RX8 Injectors
- 2.5" downpipe and 3" all the way with 3" muffler box and no CAT
- Garrett 2560, 11psi
- AEM water injection (ONLY WATER)
- Toyota COP

Running a faily conservative tune, power is at wheels.Looks about right?


BLUE LINE 2.5" exhaust, RED LINE 3" exhaust.

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NA swap 1999 NB8, Garett 2560 at 11psi, 3" exhaust, water injection, FM Manifold-2vs3.jpg  

Last edited by nismo502; 11-01-2011 at 11:24 AM.
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Old 11-01-2011, 09:24 AM   #2
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How much boost?
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Old 11-01-2011, 11:19 AM   #3
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Quote:
Originally Posted by thirdgen View Post
How much boost?
my bad,forgot to mention, its about 11psi.
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Old 11-01-2011, 11:43 AM   #4
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Its not bad.
Considering your overall mild setup, small turbo, and low boost.
There's room for improvement, esp since you're running w/i, you could probably push it a bit more, but it aint bad imo.
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Old 11-01-2011, 04:57 PM   #5
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Who makes dyno software that comes up with stupid random X-axis tick values?

e.g. 2810, 4010 RPM, with 4 ticks between them, instead of 3000, 4000 RPM?

Idiotic.
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Old 11-01-2011, 05:13 PM   #6
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Yes it is very annoying and stupid.
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Old 11-06-2011, 02:00 PM   #7
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Same boost with 2,5" and 3" exhaust?
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Old 11-06-2011, 03:04 PM   #8
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Quote:
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Same boost with 2,5" and 3" exhaust?
Yes, same boost.
Interestingly, boost comes slightly on the 3" exhaust.
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Old 11-06-2011, 03:05 PM   #9
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30hp from changing the exhaust?
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Old 11-06-2011, 03:10 PM   #10
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I was running a fairly restrictive down pipe and I changed itnto the fm ones along with the 3" exhaust.
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Old 11-06-2011, 03:56 PM   #11
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30hp from changing the exhaust?
Very possible. I gained something like 40 going from stock exhaust to 3" back in the day. Night and day difference.
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