How to measure boost
Thread Starter
Melting Slicks
Joined: Jul 2007
Posts: 2,939
Likes: 7
From: Simpsonville SC
St. Jude Donor '09-'10
How to measure boost
I recently installed the ProCharger P1SC system. I ran a vacuum line into the passenger compartment, and use a PLX SM-Vac/Boost sensor
http://www.plxdevices.com/products/sm/vacboost/ with their DM-100 display http://www.plxdevices.com/products/dm100/.
My question is how to really tell the amount of boost I see. When I run it hard, I see at least 7.5 on the display; but, the display also has a PEAK display mode. On this, I see that I am making 8.5 PSI!
Is is normal to say I make 8.5, or 7.5 with this setup?
http://www.plxdevices.com/products/sm/vacboost/ with their DM-100 display http://www.plxdevices.com/products/dm100/.
My question is how to really tell the amount of boost I see. When I run it hard, I see at least 7.5 on the display; but, the display also has a PEAK display mode. On this, I see that I am making 8.5 PSI!
Is is normal to say I make 8.5, or 7.5 with this setup?
Melting Slicks
Joined: May 2002
Posts: 3,210
Likes: 1
assuming that gauge is calibrated correctly you're making 8.5psi, so thats what I would say.
if you wanted you could qualify it with the words peak or max but most people should know what you're talking about.
if you wanted you could qualify it with the words peak or max but most people should know what you're talking about.
Race Director
Joined: Dec 2003
Posts: 12,599
Likes: 1
From: Texas
Maybe peak is stored from a previous run? I peak out higher at night (cooler air) than during the day. I always try and remember to reset my peak so that i know what I just did on the run. If not it will hold the peak number for a good deal of time. Heck, I bought my setup used and it held the previous guys peak number ha ha.
Race Director
Joined: Dec 2003
Posts: 12,599
Likes: 1
From: Texas
Just a thought. Still seems a bit odd, keep boostin' away!!!!
