V-tec engage but power drop off

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Old Sep 3, 2007 | 12:24 PM
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Default V-tec engage but power drop off

Just went to get my 89 turboed civic with a y8 motor tuned from chris at xenocron. While on the dyno when the vtec engaged...the power dropped off...then came up.... now im on here lookin for probable cause...let me know..


Modified by j-bird20 at 3:12 PM 9/3/2007


Modified by j-bird20 at 3:13 PM 9/3/2007
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Old Sep 3, 2007 | 01:48 PM
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Default Re: V-tec engage but power drop off (j-bird20)

DYNO GRAPHhttp://render2.snapfish.com/re...0,335
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Old Sep 3, 2007 | 05:19 PM
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Default Re: V-tec engage but power drop off (j-bird20)

Do you have a graph of the a/f's?
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Old Sep 3, 2007 | 05:33 PM
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Default Re: V-tec engage but power drop off (gibsanez)

that graph looks all f-ed up.

what kind of cam is in there. It seems that your vtec engagement is set too low. Mine was like that when my vtec was at 5300, brought it up to 5800 and it engages very well now. No power drop.
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Old Sep 3, 2007 | 06:10 PM
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Default Re: V-tec engage but power drop off (.Manny.)

Stock Cam...the little hump at the begin in the load on the dyno on then off and then full throttle...so basically everything after that point...i think ill try bringin up the v-tec to see if i can more of a consistant line...any other ideas
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