unusually low idle vacuum readings with pro1 cams

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Jun 6, 2006 | 07:38 AM

an2ny888

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Honda-Tech Member

Joined: Jul 2003

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From: Quezon city, SFDM, Philippines

unusually low idle vacuum readings with pro1 cams

i'm only pulling 13 - 14 in/hg of vacuum with the pro1's on my b18c, is this normal? does it have something to do with my iac valve? i bypassed the water hoses leading into the iac valve, but this never caused a problem when i had bc3+ cams before

Jun 6, 2006 | 09:15 AM

pomansouth01

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Joined: Apr 2004

Posts: 893

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From: montgomery, alabama, united states

Re: unusually low idle vacuum readings with pro1 cams (an2ny888)

do a search, but I will tell you them main factor here is overlap... so much overlap from these cams leads to low vacuum at idle... Advance your exhaust cam to about 5 degrees advance...