Drag Racing Drag Racing (legal) & Associated Topics

Weird Problem at VTEC Crossover HELP!

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Old Apr 30, 2008 | 01:45 PM
  #26  
sander's Avatar
2.7(p/t)
 
Joined: Feb 2003
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From: Maryland
Default Re: (BLKTeg94)

I am still staying with a "latent" vtec crossover.

Mechanically the valves have not all gone on to the middle lobe as fast as they should (because of mechanical blockage) but the fuel and ignition tables have already changed to the high cam. So effectively your mechanically on the low cam while electronically the computer thinks your on the high cam and will add fuel and timing relative to your calibration.

Another reason I dont like how Honda/Hondata does this multi stage fuel/ig table, AEM and most others use one fuel and one ignition that is easy to see, so if you have a drastic fuel enrichment you can see it easier in a 2d or 3d plot as opposed to looking at either a log or going back and forth between two tables in Hondata.

Good Luck.

-sander.
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Old Apr 30, 2008 | 07:53 PM
  #27  
GodFather of Boost's Avatar
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From: newark, nj, usa
Default Re: (Boner_Ben)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boner_Ben &raquo;</TD></TR><TR><TD CLASS="quote">
Tested that, when jumping the vtec solenoid at around 5k it read about 50psi of pressure. </TD></TR></TABLE>
50psi at 5k seems a bit low. i think the service manual says 50psi is the service limit. i usally see 75-80psi
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Old Apr 30, 2008 | 10:26 PM
  #28  
cvcturbo's Avatar
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From: Hayward, Ca, United States
Default Re: (GodFather of Boost)

I've had trouble where there were electrical interferences. Try adding grounds to the head and transmission. There were times we did that and it would pull through.
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Old May 1, 2008 | 06:24 PM
  #29  
Boner_Ben's Avatar
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From: MD
Default Re: (cvcturbo)

Turns out it was a motor issue. Already chewing up mains again and just didn't have enough oil pressure to lock it into vtec. Thanks tricura for letting me borrow a motor for this weekend
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Old May 2, 2008 | 02:47 AM
  #30  
tepid1's Avatar
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From: CT
Default Re: (Boner_Ben)

Ouch.... sorry to hear.
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Old May 5, 2008 | 09:30 PM
  #31  
building boost's Avatar
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From: NY
Default Re: (Boner_Ben)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boner_Ben &raquo;</TD></TR><TR><TD CLASS="quote">Turns out it was a motor issue. Already chewing up mains again and just didn't have enough oil pressure to lock it into vtec. Thanks tricura for letting me borrow a motor for this weekend </TD></TR></TABLE>
what was the issue with the motor? why did it chew up the mains?
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Old May 5, 2008 | 10:20 PM
  #32  
tagperformance's Avatar
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From: Sin City
Default

getting water in the lower end?
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Old May 9, 2008 | 04:28 PM
  #33  
travis-b16a2-eg's Avatar
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From: central IA /641
Default Re: (tricura)

same prob. here bro. checked everything in the book twice? think the iacv cel would cause this problem?


problem resolved, just needed to wire my knock sensor to D3 because its a b16a...


Modified by travis-b16a2-eg at 1:48 PM 5/12/2008
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Old May 10, 2008 | 02:16 PM
  #34  
extremevtecracing's Avatar
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From: Allen, TX, 75002
Default Re: (travis-b16a2-eg)

I had this same problem A LOOOOOOOOOOOOOOOOONG time ago when I had a SOHC, check the screen on the vtec solenoid. If there were still shavings in the head it could be clogged. Just a thought.
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