help fuel filter i THINK ???????????????? help
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 807
Likes: 0
From: Jeddah
help fuel filter i THINK ???????????????? help
hi guys its been a long while since i posted any problems but it seems to have arrived and in Ase's
OK here goes
on idle every thing is fine going up and dawn the RPM on light throttle and all is good
nut once i get on it hard and go above 5000RPM i start to lose pressure
i did some testing to see what is damaged
1-i closed the feed line to the regulator and the fuel pressure went way pass 100PSI , so the fuel pumps are good
2-i burrowed a fuel pressure regulator from a Friend and it showed the exact same symptoms
i guess the only other thing is the fuel filter to change and that is what i will do tomorrow
what do you think guys
OK here goes
on idle every thing is fine going up and dawn the RPM on light throttle and all is good
nut once i get on it hard and go above 5000RPM i start to lose pressure
i did some testing to see what is damaged
1-i closed the feed line to the regulator and the fuel pressure went way pass 100PSI , so the fuel pumps are good
2-i burrowed a fuel pressure regulator from a Friend and it showed the exact same symptoms
i guess the only other thing is the fuel filter to change and that is what i will do tomorrow
what do you think guys
Melting Slicks
Joined: Sep 2005
Posts: 2,521
Likes: 146
From: Watertown CT
[I would go ahead and change that, it's the easiest and cheapest thing to do. I always start with the small easy stuff and then go from there. What kind of fuel set up do you have, you did say "pumps"
Dan
Dan
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 807
Likes: 0
From: Jeddah
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 807
Likes: 0
From: Jeddah
filter change and still same problem resides
i am gussing
1-vacume lines
2-fuel feed line kinked some were
3- wolbrow are dieng
i dont know tomorow i will check the first 2 and see what will hapen if the problem is still there i will go for the third and final option
i am gussing
1-vacume lines
2-fuel feed line kinked some were
3- wolbrow are dieng
i dont know tomorow i will check the first 2 and see what will hapen if the problem is still there i will go for the third and final option
Melting Slicks
Joined: Nov 2004
Posts: 2,715
Likes: 0
From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
filter change and still same problem resides
i am gussing
1-vacume lines
2-fuel feed line kinked some were
3- wolbrow are dieng
i dont know tomorow i will check the first 2 and see what will hapen if the problem is still there i will go for the third and final option
i am gussing
1-vacume lines
2-fuel feed line kinked some were
3- wolbrow are dieng
i dont know tomorow i will check the first 2 and see what will hapen if the problem is still there i will go for the third and final option
Are you running both pumps all the time or one only in boost?
Pumps are in tank, or one in one out??
You'll get it figured out, but either I can't access your old thread or it no longer exists.
What kind of lines are you using?
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
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 807
Likes: 0
From: Jeddah
I am running 2 intank at the same time and i am using the stock feed line and a /8 return line
i will be upgrading the feed line today to a /10 and i will see haw it gose
http://forums.corvetteforum.com/show....php?t=1769487
http://forums.corvetteforum.com/show....php?t=1773000
i will be upgrading the feed line today to a /10 and i will see haw it gose
http://forums.corvetteforum.com/show....php?t=1769487
http://forums.corvetteforum.com/show....php?t=1773000
Melting Slicks
Joined: Nov 2004
Posts: 2,715
Likes: 0
From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
Do you still have the diagram of how things are connected, plumbed?
Sounds like even though you have pressure, you don't have volume under higher load.
What does the pressure drop off to?
Good move changing the feed line anyhow, but just wondering why it was working before and not now? Maybe one of the pumps is going or a something in the tank?
Good luck with it
rjw
Sounds like even though you have pressure, you don't have volume under higher load.
What does the pressure drop off to?
Good move changing the feed line anyhow, but just wondering why it was working before and not now? Maybe one of the pumps is going or a something in the tank?
Good luck with it
rjw
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 807
Likes: 0
From: Jeddah
Do you still have the diagram of how things are connected, plumbed?
Sounds like even though you have pressure, you don't have volume under higher load.
What does the pressure drop off to?
Good move changing the feed line anyhow, but just wondering why it was working before and not now? Maybe one of the pumps is going or a something in the tank?
Good luck with it
rjw
Sounds like even though you have pressure, you don't have volume under higher load.
What does the pressure drop off to?
Good move changing the feed line anyhow, but just wondering why it was working before and not now? Maybe one of the pumps is going or a something in the tank?
Good luck with it
rjw
the presure drops of to 3BAR
and the car is leaning out
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 807
Likes: 0
From: Jeddah
after changing the filter
the guy did some tests and we faounf out that one of the pumps is not wired corect and it is no working
so we are doing some changes please wish me luck
thanks
the guy did some tests and we faounf out that one of the pumps is not wired corect and it is no working
so we are doing some changes please wish me luck
thanks
Melting Slicks
Joined: Nov 2004
Posts: 2,715
Likes: 0
From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
Melting Slicks
Joined: Nov 2004
Posts: 2,715
Likes: 0
From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
Congrats
Glad that you were on top of it before and damage happened.
Maybe a lesson to be learned from this for potential DIYers... Dual intak pumps require wiring upgrades as well
Glad that you were on top of it before and damage happened.
Maybe a lesson to be learned from this for potential DIYers... Dual intak pumps require wiring upgrades as well
Last edited by RJW; Sep 11, 2007 at 11:40 AM.