that would be a good way, but the greddy has a pressure sensor. The MAP is only shown in volts.blackbird_R/T said:I don't have any personal experience with the Greddy stuff, but I will note that my stock boost gauge just died. I was suspicious about it for a while now, but over the last week or so it's ALL messed up. 30" of vacuum, vacuum with the engine off, and boost reading low. At this point I'd trust boost computed from the stock MAP more than I would the stock gauge.
So was mine...i installed the SRT 30/30 electric gauge and it proved that my stock gauge was off by 2psi.[email protected] said:Actually my stock boost gauge was showing 2psi lower than it should. And I've noticed that the stock boost gauge is not accurate on other SRTs too, even to a search on here and you'll see, so before you say anything is off, compare to another boost gauge first,