[Z06] Surging
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 31
From: Central Florida
If the surging is light, it's something you can probably live with until your planned upgrades are accomplished.
But in the meantime the hole in the shroud may be making the symptoms worse. You can test that by covering the hole with one or more puter mouse pads and some duct tape. Then go for a ride to the downhill that usually gives the symptom.
Ranger
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,030
Likes: 1
From: Douglasville Ga
That's the typical circumstance for CAI surge, downhill and off-throttle or light-throttle.
If the surging is light, it's something you can probably live with until your planned upgrades are accomplished.
But in the meantime the hole in the shroud may be making the symptoms worse. You can test that by covering the hole with one or more puter mouse pads and some duct tape. Then go for a ride to the downhill that usually gives the symptom.
Ranger
If the surging is light, it's something you can probably live with until your planned upgrades are accomplished.
But in the meantime the hole in the shroud may be making the symptoms worse. You can test that by covering the hole with one or more puter mouse pads and some duct tape. Then go for a ride to the downhill that usually gives the symptom.
Ranger
Good idea. I have the piece that I cut out, so i will just use some tape and tape that back under the filter and see what happens. I will post the outcome once I test it.
Thanx again
Nick
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,030
Likes: 1
From: Douglasville Ga
I plugged the hole up with the piece I cut out and some duct tape, and the surging stop. Any ideas of why this occurs? I have my theories but I was wondering if anyone actually new the reason.
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 31
From: Central Florida
Even with smooth elegant bends to control the air flow, almost any CAI design will create some level of turbulence. It's only a question of how much and what level is tolerable.
Ranger
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,030
Likes: 1
From: Douglasville Ga
The open hole you cut in the shroud creates air turbulence, as measured at the MAF sensor.
Even with smooth elegant bends to control the air flow, almost any CAI design will create some level of turbulence. It's only a question of how much and what level is tolerable.
Ranger
Even with smooth elegant bends to control the air flow, almost any CAI design will create some level of turbulence. It's only a question of how much and what level is tolerable.
Ranger
Thats exactly what I was thinking. And it doesn't surge while under a load (accelerating) because the engine is drawing air in under somewhat laminar flow vs. letting the turbulant flow from under the car surge into the engine.
thanks for all the help guys!!!
nick
