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Nasty Flat Spot!

Discussion in 'Integra' started by LitalTomo, Apr 23, 2007.

  1. LitalTomo

    LitalTomo '96 Integra VTI-R

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    Hi there guys, first thread on this site... been reading some posts, you guys really know your shiat.

    ok here goes, i have a 96 dc2 b18c integra that recently had a cracked piston so i took it to a mechanic that was sugested to me by a friend. i thought seeings that the head was coming off it would be a good oppertunity to get some work done. i ended up getting the head bored out by 10 thousand, a port and polish, buddy club cams and valve springs and a new/better clutch and a rebiuld of all the soft parts. this all took like the longest part of 2 months to get done and cost a small fortune which i expected...

    Now the problem with is that i now have a nasty flat spot between about 4,500, 6000 rpm which sort of gets nastyier as it gets warmer, sort of feels like a misfire, i have taken it back to the mechanic and he recons it is running to rich in this flat spot. He suggests the only way to fix it is to install a new computer suggesting apexi vafc and this will qure my problem. BTW he is a nissan mechanic specialising in GT-R's and i dont think he knows much about V-TEC.:huh:

    I sort of dont trust him, any suggestions from anyone out there as to how to get rid of the problem?

    Thanks guys
     
  2. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Tune it properly on a dyno with a wideband sensor and some kind of truly adjustable tuning solution. I'll bet you have a hole in your ignition map between 4500 and 6000 rpm.

    In any case, you could try to iron out your problem with a new ECU and a VAFC, but you could still have other parts of your ignition that need to be fixed before you start tuning.
     
  3. LitalTomo

    LitalTomo '96 Integra VTI-R

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    thanks mate, will do that... do you recon i could be hurting the engine fi i dont get it fixed asap?
     
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