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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 05-26-2013, 09:54 PM   #1
drayco513
 
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how much vacuum

i run the lg g6x3 cam , i never heard or checked until today what these cars make . checked mine from the line that connects to the c.a.i. (off the pass head) it made about 6". then from the evap from the drivers side of the intake manifold , right behind the tb. it made around 12" . is that what u guys are seeing. i know some cams will change things. but just wondering need a good data base for future guys looking. 950 idle also.
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Old 05-27-2013, 11:21 AM   #2
Bell040


 
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The LG isn't on here, but you can probably get an idea depending on the overlap. The pressures are in kPa units, you will need to convert inches to kPa.



http://www.gmhightechperformance.com...n/viewall.html

EDIT: ... and if you need to calculate overlap, use this: http://www.wallaceracing.com/overlap-calc.php
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Old 05-27-2013, 12:38 PM   #3
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kk thats good find. from wht i found converting im around 45 or so @950 rpm. the lg is on a 111 lsa from my findings
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Old 05-27-2013, 12:44 PM   #4
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+3 so it's a 108 iirc
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