fuel pressure
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
If you do change pump, get the Racetronix pump upgrade unit along with the direct wire hook up harness. It's a direct plug n play and the pump will then get it's power directly from the alternator terminal. I highly recommend; it's all quality stuff. No jury rigging.
HTH
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
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
Drifting
Joined: Feb 2008
Posts: 1,596
Likes: 67
From: Bahama North Carolina
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
I have a pressure gauge at the rail. I typically see around 66 PSI with a full tank of fuel that will gradually drop to 58 PSI as I get close to an empty tank.
Melting Slicks
Joined: Nov 2009
Posts: 2,922
Likes: 219
From: West Branch, MI
When I did my mods last summer (FAST 102 and new fuel rails) my 98 (it has the return line on fuel) required my mechanic to install a new regulator and we put a mechanical guage on it at the same time (to make it easy for him to adjust the pressure). It maintains 58psi at idle.
Burning Brakes
Joined: Apr 2007
Posts: 966
Likes: 9
From: Phoenix AZ
No, the fuel pump just happily pumps away and the regulator in the filter manages how much fuel is returned to the tank in order to maintain proper fuel pressure.
Drifting
Joined: Apr 2008
Posts: 1,687
Likes: 86
From: De Pere, WI
Drifting
Joined: Feb 2008
Posts: 1,596
Likes: 67
From: Bahama North Carolina
Certainty people can have issues with non stock cars but that doesn't mean it is a design issue esp in regards to fuel pressure a the rail. Never heard of floating between the tube and diff. You stated: "****** design really, doesn't allow for proper fuel pressure regulation at the injectors where it needs to be...."