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Forced Induction & Tuning
Vortech vacuum readings
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<blockquote data-quote="97blackgt" data-source="post: 700626" data-attributes="member: 8902"><p>Alright i finally got the vortech installed and boost gauge hooked up, and this is what i see...</p><p></p><p>At idle it sits at 15 mm vacuum, and cruising it raises to 17. Boost in first gear, i only saw 1 psi, and i saw it go up to 6 psi MAX, at one point but i dont know if it held.</p><p></p><p>The car has compressor surge when holding steady throttle in neutral, and between shifts, or when i rev it and let off.</p><p></p><p>Are my readings normal? I have an ebay type s knockoff BOV(recirculated, larger spring taken out, set at softest setting) i think may be causing some issues. Here are my mods.</p><p></p><p>97 gt, PI heads, cams, intake vortech v2 stock pulley, cx racing FMIC, stock injectors, stock MAF, x pipe, and catback. I dont have a tune and im using the FMU.</p><p></p><p>Also it seems to be running really rich, i can smell unburned fuel, and it surges, bucks when crusing part throttle at like 2000 RPMS.</p></blockquote><p></p>
[QUOTE="97blackgt, post: 700626, member: 8902"] Alright i finally got the vortech installed and boost gauge hooked up, and this is what i see... At idle it sits at 15 mm vacuum, and cruising it raises to 17. Boost in first gear, i only saw 1 psi, and i saw it go up to 6 psi MAX, at one point but i dont know if it held. The car has compressor surge when holding steady throttle in neutral, and between shifts, or when i rev it and let off. Are my readings normal? I have an ebay type s knockoff BOV(recirculated, larger spring taken out, set at softest setting) i think may be causing some issues. Here are my mods. 97 gt, PI heads, cams, intake vortech v2 stock pulley, cx racing FMIC, stock injectors, stock MAF, x pipe, and catback. I dont have a tune and im using the FMU. Also it seems to be running really rich, i can smell unburned fuel, and it surges, bucks when crusing part throttle at like 2000 RPMS. [/QUOTE]
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