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Hesitation at WOT now?

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Old Mar 28, 2016 | 06:00 PM
  #166  
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Bringing this post back from the dead.

What could this be? 48k mile Evo IX. First time taking it to the dragstrip and only when it hits 3rd gear it bogs then kicks back in (see video). Happened both times I ran. When we left we did a hard pull and it wouldn't do it again?

Recently have had the car retuned on E85 and upped the boost on the stock turbo to 30psi.

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Old Aug 14, 2019 | 05:53 AM
  #167  
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Originally Posted by Bmurray
Bringing this post back from the dead.

What could this be? 48k mile Evo IX. First time taking it to the dragstrip and only when it hits 3rd gear it bogs then kicks back in (see video). Happened both times I ran. When we left we did a hard pull and it wouldn't do it again?

Recently have had the car retuned on E85 and upped the boost on the stock turbo to 30psi.

Evo IX 1/4 Mile - Bogged in 3rd - YouTube


Did you find the issue?
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Old Aug 14, 2019 | 02:55 PM
  #168  
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Originally Posted by High_PSI
Did you find the issue?
Yes. GSC springs and retainers fixed the issue. I was revving to high on stock valvetrain.
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Old Aug 15, 2019 | 06:12 AM
  #169  
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Originally Posted by Bmurray
Yes. GSC springs and retainers fixed the issue. I was revving to high on stock valvetrain.

Glad I have those on my Evo.
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