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Old 03-10-2014, 01:33 PM   #1
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Default bucks @ 4000 rpm under wot

Hello all! My car bucks @ 4000 rpm during WOT (feels like I hit a brick wall) then continues to accelerating. If I throttle below 70 percent it'll make it to redline no problem. I hope its not my coil pack. Attached is my log and msq.

1999 Miata sr20 turbo
NGK4644 gaped ~.032
New NGK wires
Mspnp2
Attached Files
File Type: msl 4000rpm.msl (373.0 KB, 65 views)
File Type: msq mspnpRevswhenstart.msq (108.2 KB, 41 views)
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Old 03-10-2014, 01:41 PM   #2
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if you're on stock ignition and more than 10-12psi, you probably need to gap lower.

or just tune, i didnt look at your msq/log.
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Old 03-10-2014, 01:55 PM   #3
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Thanks for the quick reply. Yes I'm on stock ignition. I'm running waste gate pressure which is about ~7 psi I'll adjust my gap later.
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Old 03-10-2014, 01:56 PM   #4
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Maybe ~.023 sounds good?
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Old 03-10-2014, 01:59 PM   #5
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Overboost protection
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Old 03-10-2014, 02:40 PM   #6
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Ok savington was right. Saved me from a ton of headaches. Thanks for all the replies
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Old 03-10-2014, 03:19 PM   #7
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Quote:
Originally Posted by Savington View Post
Overboost protection
Came here to say this, +props sav.
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