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TransAm86 · 12-04-2002, 12:13 PM

Are you suggesting I convert to MAF

Nevermind though, I located some!

Here's my situation. I want to install an A-Trim (around 6psi max) on my Speed Density '87 Mustang. The problem is that around 3500rpm the engine will bogg and I might also experience idle problems due to the MAP sensor not beeing able to read boost. In order to rectify the situation, I need to install a check valve on the vaccum hose between my intake and MAP sensor.

Note: Under boost the FMU will variate the fuel pressure.

My question is, what cracking pressure should my valve have? A low one like 0.8 psi or higher like 2, 3 or 4 psi?

thanks,
Nik

12-04-2002, 12:13 PM	#6
TransAm86 Registered Member Join Date: Nov 2002 Location: Gatineau, Qc, Canada Posts: 62	Are you suggesting I convert to MAF Nevermind though, I located some! Here's my situation. I want to install an A-Trim (around 6psi max) on my Speed Density '87 Mustang. The problem is that around 3500rpm the engine will bogg and I might also experience idle problems due to the MAP sensor not beeing able to read boost. In order to rectify the situation, I need to install a check valve on the vaccum hose between my intake and MAP sensor. Note: Under boost the FMU will variate the fuel pressure. My question is, what cracking pressure should my valve have? A low one like 0.8 psi or higher like 2, 3 or 4 psi? thanks, Nik __________________