PFC boost control how accurate is it?
28 July 2006, 05:41 PM
#1
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PFC boost control how accurate is it?
I have just installed a boost gauge in my car and ia have seen some differences from the boost gauge readings with the boost readings on PFC (18 Ppsi on gauge but only 1,02 bar on PFC).
Which of them is the more accurate ?
Which of them is the more accurate ?
Last edited by skydiver; 28 July 2006 at 05:49 PM.
28 July 2006, 08:12 PM
#2
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No idea, but I always get a slight variation myself. It's nothing I lose sleep over tbh - whether it's 1.45 bar or 20-odd psi, it's fast however you measure it LOL
The real question is whereabouts in the boost circuit are they measuring from. The same gauge will measure noticeably different pressures at the filter, in front of the compressor, between compressor and intercooler, after intercooler and inside the inlet manifold etc etc. Some locations give wildly fluctuating boost readings (e.g. right in front of the throttle body) and others are smooth (e.g. in one of the vacuum lines from the inlet manifold).
I'd be worried if the readings on the Power FC and boost gauge were the SAME!
The real question is whereabouts in the boost circuit are they measuring from. The same gauge will measure noticeably different pressures at the filter, in front of the compressor, between compressor and intercooler, after intercooler and inside the inlet manifold etc etc. Some locations give wildly fluctuating boost readings (e.g. right in front of the throttle body) and others are smooth (e.g. in one of the vacuum lines from the inlet manifold).
I'd be worried if the readings on the Power FC and boost gauge were the SAME!
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