Dry Nos Surging.... Help Needed....
Thread Starter
Dig
Joined: Jan 2006
Posts: 5,467
Likes: 1,127
From: Port Saint Lucie FLORIDA & HONDURAS
Dry Nos Surging.... Help Needed....
I HAD INSTALLED A DRY 100 SHOT DUAL NOZZLE NITROUS SYSTEM A WHILE BACK. IT DINT FEEL AS GOOD AS MY OLD WET SYSTEM I HAD.
ACUALLY, IT FELT LIKE A 25 SHOT.
SO, I REMOVED THE MAF SCREEN ( FIGURING THAT WOULD BE A RESTRICTION ) AND TOOK IT FOR A RIDE.
WELL, I HIT THE BUTTON AND IT TOOK OFF LIKE A BAT OUT OF HELL ( COMPARED TO IT BEFOR ) BUT IT STARTED TO SURGE. WHEN I SAY SURGE I MEAN.... IT PULLS REAL HARD THEN DIES OFF AND THEN STARTS GRADUALLY PULLING HARD AGAIN. OVER AND OVER AGAIN.
THE NOZZLES I HAVE ARE POINTING INTO THE MAF SENCER, ABOUT 3- 4 INCHES AWAY.
THE NITROUS BOTTLE IS FULL.
NO DETONATION THAT I CAN HEAR OR FEEL.
COULD IT BE THAT I SHOULD HAD NOT TRIED THE NITROUS UNTIL THE COMPUTER LEARNED THAT THE SCREEN WAS TAKEN OUT ?
HELP PLEASE... THANKS
ACUALLY, IT FELT LIKE A 25 SHOT.
SO, I REMOVED THE MAF SCREEN ( FIGURING THAT WOULD BE A RESTRICTION ) AND TOOK IT FOR A RIDE.
WELL, I HIT THE BUTTON AND IT TOOK OFF LIKE A BAT OUT OF HELL ( COMPARED TO IT BEFOR ) BUT IT STARTED TO SURGE. WHEN I SAY SURGE I MEAN.... IT PULLS REAL HARD THEN DIES OFF AND THEN STARTS GRADUALLY PULLING HARD AGAIN. OVER AND OVER AGAIN.
THE NOZZLES I HAVE ARE POINTING INTO THE MAF SENCER, ABOUT 3- 4 INCHES AWAY.
THE NITROUS BOTTLE IS FULL.
NO DETONATION THAT I CAN HEAR OR FEEL.
COULD IT BE THAT I SHOULD HAD NOT TRIED THE NITROUS UNTIL THE COMPUTER LEARNED THAT THE SCREEN WAS TAKEN OUT ?
HELP PLEASE... THANKS
Le Mans Master
Joined: Oct 2005
Posts: 7,088
Likes: 1,829
From: Metro Detroit Michigan
It's possible that your fuel pressure safety switch is set too high, or that fuel pressure is dropping enough to cause it to interrupt power.
These switches tend not to just turn off when fuel pressure drops, but will cycle with pulsation in the fuel rails. This will cycle the solenoids, so power can be all over the place depending on how much of the time the solenoids stay open.
These switches tend not to just turn off when fuel pressure drops, but will cycle with pulsation in the fuel rails. This will cycle the solenoids, so power can be all over the place depending on how much of the time the solenoids stay open.
Intermediate
Joined: Nov 2004
Posts: 46
Likes: 0
I would say you are starved for fuel. I don't know alot about the vettes, but I think they are returnless... so something is not properly raising fuel pressure/adding fuel to match the nitrous.
Would also like to add that I do not think that those MAF style kits are worth a salt. On return style systems, there are kits that spike vacum pressure to raise fuel pressure. On dry kits, alot of times you will just tune around it, etc..
In any event, if I had to guess, there is no fuel there for the nitrous...
Would also like to add that I do not think that those MAF style kits are worth a salt. On return style systems, there are kits that spike vacum pressure to raise fuel pressure. On dry kits, alot of times you will just tune around it, etc..
In any event, if I had to guess, there is no fuel there for the nitrous...
Last edited by little2v; Sep 7, 2006 at 03:15 AM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
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
Drifting
Joined: Sep 2005
Posts: 1,258
Likes: 0
From: Home Southern Maine
St. Jude Donor '08
These bad bottle fills...how does this happen? Is it like getting the tail end of the keg?
Seriously...My last bottle fill (still unused) they changed mother bottle mid fill.
Beer
Seriously...My last bottle fill (still unused) they changed mother bottle mid fill.
Beer
Last edited by Beer99C5@FastbirdPerf.com; Sep 7, 2006 at 08:55 AM.
Burning Brakes
Joined: Aug 2004
Posts: 910
Likes: 0
From: Burton TX
I was told it was from the bottle not being cold, they have to use the compressed air to push the nitrous in. Heard it happens more when people use the filling stations and dont use the scales or an accurate one. This is all what I have heard, I have no idea on how correct any of it is.
Originally Posted by Beer99C5
These bad bottle fills...how does this happen? Is it like getting the tail end of the keg?
Seriously...My last bottle fill (still unused) they changed mother bottle mid fill.
Beer
Seriously...My last bottle fill (still unused) they changed mother bottle mid fill.
Beer
Thread Starter
Dig
Joined: Jan 2006
Posts: 5,467
Likes: 1,127
From: Port Saint Lucie FLORIDA & HONDURAS
I Am Using The F-body Nos Dry Kit With 2 Nozzles 2- #32's Jets.
It Worked Ok (soft Hitting )befor I Took Out The Screen In The Sensor.
But, What I Did Notice Is That I Faced The Nozzles Away From The Maf And It Works Now!! ( Better Than With The Screen In ).
As Far As Bad Bottle Fills ..... I Have Had Numerous.
I've Had The Correct Weight. But, With Air Coming Out Also.
This Has Been Happening Or Been Posted Alot In The Last 3 Weeks With Other Members Also.
It Worked Ok (soft Hitting )befor I Took Out The Screen In The Sensor.
But, What I Did Notice Is That I Faced The Nozzles Away From The Maf And It Works Now!! ( Better Than With The Screen In ).
As Far As Bad Bottle Fills ..... I Have Had Numerous.
I've Had The Correct Weight. But, With Air Coming Out Also.
This Has Been Happening Or Been Posted Alot In The Last 3 Weeks With Other Members Also.
Collections Hold
Joined: May 2003
Posts: 3,520
Likes: 2
From: Tacoma WA
Originally Posted by little2v
I would say you are starved for fuel. I don't know alot about the vettes, but I think they are returnless... so something is not properly raising fuel pressure/adding fuel to match the nitrous.
Would also like to add that I do not think that those MAF style kits are worth a salt. On return style systems, there are kits that spike vacum pressure to raise fuel pressure. On dry kits, alot of times you will just tune around it, etc..
In any event, if I had to guess, there is no fuel there for the nitrous...
Would also like to add that I do not think that those MAF style kits are worth a salt. On return style systems, there are kits that spike vacum pressure to raise fuel pressure. On dry kits, alot of times you will just tune around it, etc..
In any event, if I had to guess, there is no fuel there for the nitrous...
Robert
Collections Hold
Joined: May 2003
Posts: 3,520
Likes: 2
From: Tacoma WA
Originally Posted by itchynackers
I always thought you weren't supposed to point the nozzles at the Maf, but perpendicular to the maf.
Robert
Burning Brakes
Joined: Apr 2005
Posts: 834
Likes: 0
From: Palm Beach Gardens FL
I've read that removing the screen in some cars causes turbulent flow in/around the MAF which cause inconsistent readings. Could this be amplified by the N20. Or tell the computer you have more O2 then gets a bad reading and back and forth??? My $0.02
Collections Hold
Joined: May 2003
Posts: 3,520
Likes: 2
From: Tacoma WA
Originally Posted by brandtdavis
I've read that removing the screen in some cars causes turbulent flow in/around the MAF which cause inconsistent readings. Could this be amplified by the N20. Or tell the computer you have more O2 then gets a bad reading and back and forth??? My $0.02
Robert
Collections Hold
Joined: May 2003
Posts: 3,520
Likes: 2
From: Tacoma WA
Originally Posted by 123sugey
I Repositioned The Nozzles And It Really Woke It Up !!!!!
I Think All Vett's Need A 225 Shot Of Juice From The Factory
I Think All Vett's Need A 225 Shot Of Juice From The Factory
Robert