2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Bogging RX7 from standing start...

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Old Sep 26, 2004 | 02:21 PM
  #1  
PilotSi's Avatar
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From: TX
Bogging RX7 from standing start...

Do your RX7 Turbos bog starting from a stand still?

If I let the clutch meet at 2500 and slip it, it'll pull away from traffic fine. But if I let the clutch meet at 1000RPMs, and try to pull away from traffic, it bogs badly until I get to about 2000RPMS and then it'll pull away cleanly. It gets especially bad about this when the car warms up.

My RX7 NA, I could let the clutch meet at 1000-1300RPMS and it'll pull away fine. My Honda, I can let the clutch meet at 800RPMs, and it'll pull away cleanly without bogging.

Is this common with RX7 Turbos, or is something wrong with my car?

Thanks,

David
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Old Sep 26, 2004 | 03:53 PM
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PureSephiroth's Avatar
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From: Battle Creek, MI
how soon you disengage the clutch has a ton of different variables aside from the engine type. How old is the clutch would be one question to ask. I wouldn't worry about it.
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Old Sep 26, 2004 | 06:45 PM
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From: Markham
have you done the TB mod? or the half TB mod? if the secondary throttle plates are left open, the engine WILL bog
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Old Sep 26, 2004 | 07:40 PM
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i'll blow YOUR valve off
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From: KC MF MO
at real low rpm's they do bog...
and check to make sure its not a clogged cat... and do the TB mod if you haven't... lets see...
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Old Sep 26, 2004 | 11:00 PM
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From: TX
Cat is a hi-flo Bonez cat. No TB mod -- I thought it could've been the butterflies opening too late , but rekx said that having the secondaries open too early could cause the bogging.

Who's right?

David
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Old Sep 26, 2004 | 11:03 PM
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cwsttu's Avatar
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From: Nacogdoches Tx
well bogging normally indicates "rich" so i would assume they are opening to late causing less air to go in which in turn makes it bog....
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Old Sep 26, 2004 | 11:06 PM
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From: Markham
Originally Posted by PilotSi
Cat is a hi-flo Bonez cat. No TB mod -- I thought it could've been the butterflies opening too late , but rekx said that having the secondaries open too early could cause the bogging.

Who's right?

David

i am

http://www.fc3spro.com/TECH/HOWTO/TBM/tbm.html
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Old Sep 26, 2004 | 11:12 PM
  #8  
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From: TX
LOL - point dully noted.

But I thought the hesitation was only on abrupt throttle changes. If I slip the throttle at 1000RPMS, it'll still bog down...You've really got to be careful about the throttle on my car! Kind of sucks...
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