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V-Tec???

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Old Mar 26, 2004 | 05:59 AM
  #1  
mini-v-si's Avatar
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Joined: Mar 2004
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From: fresno, ca, usa
Default V-Tec???

I did a conversion from obd2 to obd1, at first my vtec engaged at around 4500 rpm with the skunk 2 chip, now it engage at 5500, anyone know what happen???
my mods:
Dc header/exhaust
skunk 2 cam
skunk 2 cam gear
68 mm holley tb
aem cold air
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Old Mar 26, 2004 | 06:35 AM
  #2  
SuzukaBlueAP2's Avatar
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Joined: Dec 2002
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From: BeaveRun, PA, USA
Default Re: V-Tec??? (hx007)

well, if you did that conversion, you changed ECUs, which could have alternate VTEC engagement points. That would do it.
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Old Mar 26, 2004 | 07:08 AM
  #3  
xSCTYGx's Avatar
 
Joined: Jun 2003
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From: Richmond, Va
Default Re: V-Tec??? (hx007)

what ECU did u use?
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Old Mar 26, 2004 | 07:21 AM
  #4  
631 Teggy's Avatar
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Joined: Dec 2001
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From: Long Island, NY
Default Re: V-Tec??? (2Gen91Teg)

LOL... Different chips use different vtec engagement points...

Is it a GSR? Cuz if you are running the stock intake manifold it could be that the secondaries just aren't opening up, so it SOUNDS different to you. Other then the obd1 gsr ecu, no other obd1 ecu's manage the secondaries. So that could be it too.
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Old Mar 28, 2004 | 06:39 PM
  #5  
mini-v-si's Avatar
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Joined: Mar 2004
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From: fresno, ca, usa
Default Re: V-Tec??? (hx007)

sorry for not being cleared on the question. I had the same setup but recently my distributor fell off, timing was off, so now go everything together but v-tec engaged at 5000-5500 rpm. what could cause that to hit high now???
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