HELP lower manifold pressure during vtec bc3+
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Joined: Feb 2004
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From: pickerington, oh, usa
HELP lower manifold pressure during vtec bc3+
fresh build b18c5 ctr pistons arp rods bolts supertech valvetrain bc3+'s skunk2 manifold sparks racing header hondata s200 tuner says manifold pressure drops at vtec ??? any ideas
I'm assuming you mean manifold vacuum? If your tuner was watching a vacuum gauge and saw that it dropped when VTEC activated, I'd assume that it's caused by the bigger lobes on the cams. Funny, I've never noticed something like that...
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