Was curious if anyone had any info about how accurate the boost guage is. I ask because last night decided to go for some top speed runs and was paying close attention to max speed in each gear and boost. In one of my 3rd gear pulls at the end of the gear my gauge read 91 KPA = 13.2 PSI using 6.895 for conversion.

 

I think it's pretty accurate. There was some question about it not reading over 12.5 PSI but thats not the case with me. I hit 14 PSI on mine.

 

gotta love a cold front!
WOT

 

14 PSI nice, thanx

 

I don't know about accuracy but my boost guage got all squirrly on me. it dropped to 0psi and just sat there, intermittently reading whatever pressure/vacuum was there. is it a freezing thing or just a bad guage?

 

mine seems right, ive been getting 12.5-13psi in 3rd gear. when my key is in the "on" position when my car is not started the guage reads exactly 0...i heard a lot of peoples guages werent doing that

 

not sure, but mine is not accurate, yes it reads above 12.5, but it lags behind. just like the tach. If you don't know what i am saying, get in your car, start it, and tap the gas and release while watching the gauges. it hesitates then goes. Lags worse then my wireless XBOX in a 16 man Halo Match

 

I'll check mine at lunch and see.

 

Drive by wire is for the throttle doesn't effect tach or boost gauge. Why it delays is because the tach and boost gauge are electronic and gets the signal from the PCM so the signal is slow.

 

whatever.... it sucks that there is such a big lag. l

 

What company makes your gauge???