Temperature and boost question
Thread Starter
Le Mans Master
Joined: Nov 2007
Posts: 6,416
Likes: 198
From: Wilkes-Barre Pa
Temperature and boost question
A week ago It was in the mid 60s and I was just shy of 7psi. Now today with temps in the low 80s on the exact same stretch of road with nothing else done to the car even the same gas in the tank I hit a little over 10psi.
Does this seem right?
Does this seem right?
Thread Starter
Le Mans Master
Joined: Nov 2007
Posts: 6,416
Likes: 198
From: Wilkes-Barre Pa
I just tested the boost gauge with compressed air and a regulator and it was dead on.
Thread Starter
Le Mans Master
Joined: Nov 2007
Posts: 6,416
Likes: 198
From: Wilkes-Barre Pa
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,224
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
You should be 8-9lbs, hitting ten when cold out. However there are variables which can change boost such as the gear it was in. If the rpm is raising slower-higher gear- it will tend to not boost as high as a faster roll threw the rpm band. At least that has been my findings over the years, so you probably do not have an issue, but keep an eye on it. Also take a peek at the tensioner to make sure is fully opened, your belt could be stretched out?
Thread Starter
Le Mans Master
Joined: Nov 2007
Posts: 6,416
Likes: 198
From: Wilkes-Barre Pa
You should be 8-9lbs, hitting ten when cold out. However there are variables which can change boost such as the gear it was in. If the rpm is raising slower-higher gear- it will tend to not boost as high as a faster roll threw the rpm band. At least that has been my findings over the years, so you probably do not have an issue, but keep an eye on it. Also take a peek at the tensioner to make sure is fully opened, your belt could be stretched out?
When I did the run today I was expecting to see around 7psi again then going home to tighten the belt to see if made any difference. I was a bit surprised when the gauge kept climbing without anything being done.
The car runs great. I can't tell any difference other then what the gauge reads.
Last edited by MARSC6; May 20, 2010 at 07:43 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Thread Starter
Le Mans Master
Joined: Nov 2007
Posts: 6,416
Likes: 198
From: Wilkes-Barre Pa
Just pulled the intake apart and everything looked good except the very dirty filter. I really wasn't expecting that since there is only 4k miles on it.