Boost gauge

[Dert]

I have my boost gauge tapped into the "P" line by my throttle body, and my gauge currently reads 14-15psi. The car is stock except for apexi cold air intake and greddy type rs bov,and bcs restrictor removed. Will my boost reading be different if I tapped into the fps line instead? I have read that that is more accurate and was wondering if i would notice a change.

 

[boostx]

You probably won't see much change in the boost level. It shouldn't be too hard to try it.

 

[crimsondragon]

I'd do a boost leak test. 14-15 vac is pretty low.

 

[No_Skillz]

I'd do a boost leak test. 14-15 vac is pretty low.

Is OP talking about in/hg, PSI, max boost, or vac?

 

[Dert]

Is OP talking about in/hg, PSI, max boost, or vac?

everything seems normal, vac is around 18-20 @ idle, full boost is 14-15psi on stock t25, from what I've read most people get 8-10psi, 12 at the most, with no mods, from the t25 and I read the best way to hook up a gauge was off the fps line...I was just wondering if my reading was correct and actually getting 14-15 psi or if it was false due to being t'd off the "P"line at the throttle body

 

[toofast82]

I have always run mine from the "p" port and the readings from my boost gauge and readings from my MAP sensor(speed density) match up when logging. I wouldn't expect the fp line to show any different. Potentially faster reading gauge due to shorter vacuum line, but probably nothing noticable

 

[Dert]

I have always run mine from the "p" port and the readings from my boost gauge and readings from my MAP sensor(speed density) match up when logging. I wouldn't expect the fp line to show any different. Potentially faster reading gauge due to shorter vacuum line, but probably nothing noticable

Ok, thanx for the info, I will leave it there then

 

[crimsondragon]

Is OP talking about in/hg, PSI, max boost, or vac?

I was tired last night.

 

[maladora_ai]

everything seems normal, vac is around 18-20 @ idle, full boost is 14-15psi on stock t25, from what I've read most people get 8-10psi, 12 at the most

really glad i came by and read this topic ### i just put in an aftermarket boost gauge and im only reading 9 psi at max i was wondering if that was right or maybe i had a leak.