How accurate is the boost gauge?

[HYBRED]

Okay guys, I have a riddle for you.

Top: 2.6 Metco pulley and 123 mm JLT CAI. 65* day.
Bottom: Above, plus 13-14 IC, AFCO H/E, Kooks 1 7/8 headers and catless X. 95* day.
Same load, gear, speed etc.

Is my gauge broken? That's the only thing that makes sense right now lol...car runs great, pulls hard, no codes and no pinging I can hear.

 

[nxhappy]

I doubt you gained 6 pounds ...lol

 

[Catmonkey]

The gauge is reflecting inferred boost from certain parameters from the PCM. It is not an analog gauge that is actually reading boost. I would not rely on it to give real boost data.

 

[nxhappy]

you can get a cheap boost gauge from summit racing, like $20 and splice it in to a vac line

 

[99SSls1]

I always liked it pegged....... It just makes it feel faster.

I went roush pod and boost gauge.

 

[SirShaun]

It's a lie. Especially once you change the tune or pulleys.