GT2554r Dyno Sheet - Miata Turbo Forum - Boost cars, acquire cats.

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Old 08-29-2009, 02:27 PM   #1
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Default GT2554r Dyno Sheet

Hi Guys,

Eventually made it to a rolling road and managed 221.5bhp at the wheels. Quite happy with that on a 2554.

Here's a scan of the rolling road graph.

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Old 08-29-2009, 02:40 PM   #2
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That is good for a 2554, no correction factor?
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Old 08-29-2009, 07:13 PM   #3
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Not sure what that means? Excuse my ignorance.
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Old 08-29-2009, 09:43 PM   #4
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how much boost
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Old 08-29-2009, 11:29 PM   #5
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Almost 2 hours later, the big question still stands:
HOW MUCH BOOST?
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Old 08-30-2009, 08:25 AM   #6
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Around 13psi, tailing off to 11.x psi at the redline.
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Old 08-30-2009, 09:11 AM   #7
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Nice numbers, but holy torque drop Batman!
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Old 08-30-2009, 04:49 PM   #8
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Do you think the torque drop off could be fixed by just trying to run 13psi to the redline?
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Old 08-30-2009, 05:30 PM   #9
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would sure help a lot mate
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Old 08-30-2009, 06:23 PM   #10
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I'm pretty sure if I run 13psi to the red line I'm going to get knock. I keep it at bay with octane booster at the moment. Maybe I'd be best to increase the boost to a flat line and pull some timing if I'm encountering more knock.

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Old 08-30-2009, 06:30 PM   #11
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Then again, if you were going to run more boost near redline, then why not increase it lower too and enjoy a fatter midrange?

WI is always an option to help deal with knock.
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