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94 Z28 Supercharged

 
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gmcknny1



Joined: 03 May 2017
Posts: 1

PostPosted: Wed May 03, 2017 2:04 pm    Post subject: 94 Z28 Supercharged Reply with quote

I am having problems when I put car into gear. Idle's around 900 but when in gear drops to 300-500. I know a lot of that is related to my cam. Looking at my data log I noticed that my spark advance at idle is in the lower 20's but when I shift into gear it drops to 9-12. IAC count is maxed out at 160, shouldn't that be at WOT and not when rpms are low? TPS voltage is at .57, I read in another forum that at idle it should be closer to .67, is this correct? Finally, car battery voltage sits at 13.3v at idle but when in gear drops into the upper 11's like 11.5-11.9
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94 Z28 Auto/ Powerdyne BD11A Supercharger/ MSD 6A Ignition,Blaster 2 coil and MSD Opti/all forged rotating assembly/ .525"-duration 305 cam/ 24lb injectors/ Hooker long tube headers/ tuned/ NOS fuel pump
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