Boost gauges reading Q

QCMSP

Member
:
msp 03.5
I have just install a boost gauges in my msp and here my question

IT's normal to read aprox 20 vac when the engine is running on neutral, 0 psi at low speed and boost (7psi) only when the rpm is high ???

If you don't understand what Im talking about feel free to ask me more details.

Tanks
 
Yes.

You should see 7psi when you are pretty heavy on the accelerator and over ~3000 RPMs. It will probably fall down to 5-6psi as you get closer to redline (assuming you are stock)

20 vac is normal for idle.
 
Tanks you very much.



jersey_emt said:
Yes.

You should see 7psi when you are pretty heavy on the accelerator and over ~3000 RPMs. It will probably fall down to 5-6psi as you get closer to redline (assuming you are stock)

20 vac is normal for idle.
 
does anyone know what normal vac should be in kpa? thats what my boost gauge reads
 
ZenProtege said:
does anyone know what normal vac should be in kpa? thats what my boost gauge reads
search kg/mm I posted and got a reply with a good link that has about everything. g/l search is your friend
 
My vac is reading at 15-16. Do you think I have a leak or worse? If any one can give me any info I would greatly appreciate it. I looked around the site a bit but could not find much info.
Albert
 
You probably have a slight leak. 16-22 is the normal range. My Msp seems to like 20 with a/c on and 22 with it off. Just check all of your fittings and clamps/zipties.
 
Back