Braineack T3 Super 60 Dyno Runs (232rwhp) - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 10-11-2008, 06:29 PM   #21
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My turbo spool was way off too. Nobody could explain it. I was hitting target boost 400rpm later than I do on the street. And thought spool would be better on the dyno. I need to check some corresponding points to see if it's off from the start or gradually builds a deficit.
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Old 10-11-2008, 08:18 PM   #22
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Originally Posted by m2cupcar View Post
My turbo spool was way off too. Nobody could explain it. I was hitting target boost 400rpm later than I do on the street. And thought spool would be better on the dyno. I need to check some corresponding points to see if it's off from the start or gradually builds a deficit.
that's usually caused by a lightweight dyno that doesn't sufficiently load up the car like you see on the street. The drums have to weigh more than the car or you get poor spool up. If that's the issue you can try your runs in 5th instead of 4th to offset it.
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Old 10-11-2008, 09:21 PM   #23
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Scott, Man.. That is one CLEAN *** CAR!
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Old 10-12-2008, 09:53 AM   #24
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...If that's the issue you can try your runs in 5th instead of 4th to offset it.
and that will fix the problem? or is it going to still be less than what it would on the street? I'd think the latter.
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