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SVTPerformance's Chain of Restaurants
Tuning À la carte
Idle tuning help Vortech SC / Comp Cams XE270
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<blockquote data-quote="Bullitt5566" data-source="post: 15232045" data-attributes="member: 119066"><p>Sorry it took so long to get back. Vacuum is 18hg at 800 rpm. Camshaft overlap is 10 degrees @ .050. The car will idle fine at ~825rpm but not any lower. If It is like there is a drop off. I have also noticed that when the power steering pump is under load during turning or braking the idle will drop. For example it stalls when backing out of the driveway or backing into a parking spot. Both use the brakes and steering. The ECU does not compensate. RPM drops ~100 rpm I've adjusted the tables to add IAC with no affect. I also looked for a power steering pressure switch and I'm convinced it doesn't exist. Does anyone know how the ECU knows when the brakes or steering are applied</p></blockquote><p></p>
[QUOTE="Bullitt5566, post: 15232045, member: 119066"] Sorry it took so long to get back. Vacuum is 18hg at 800 rpm. Camshaft overlap is 10 degrees @ .050. The car will idle fine at ~825rpm but not any lower. If It is like there is a drop off. I have also noticed that when the power steering pump is under load during turning or braking the idle will drop. For example it stalls when backing out of the driveway or backing into a parking spot. Both use the brakes and steering. The ECU does not compensate. RPM drops ~100 rpm I've adjusted the tables to add IAC with no affect. I also looked for a power steering pressure switch and I'm convinced it doesn't exist. Does anyone know how the ECU knows when the brakes or steering are applied [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Idle tuning help Vortech SC / Comp Cams XE270
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