Air Intake system question.
Drifting
Joined: Jun 2002
Posts: 1,945
Likes: 41
From: Corinth TX
The stock system actually flows pretty well:
http://forums.corvetteforum.com/c4-t...o-results.html
http://forums.corvetteforum.com/c4-t...o-results.html
Thread Starter
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
For years I ran a system that was ordered from either MAD or Ecklers that was basically the factory system flipped over and enlarged with the later model (larger) K&N with a ram air vent that was down inside the radiator area.
It worked well, but sold it to someone on here for like $275 a few years back.
It doesn't work in FI applications, so no longer needed.
If you could find a system like that, I think you would be satisfied.
It worked well, but sold it to someone on here for like $275 a few years back.
It doesn't work in FI applications, so no longer needed.
If you could find a system like that, I think you would be satisfied.
Thread Starter
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
Drifting
Joined: Jun 2002
Posts: 1,945
Likes: 41
From: Corinth TX
Yeah, they do seem to be dragging their feet. You would think that they would see the potential of all the C4s out there. I checked their website and didn't see anything at all.
Thread Starter
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
Kinda sucks because it seems hard to find a system that works. I will figure out something.
Thread Starter
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
Will the air coupler tube work since my car is an 88? It seems that the opening of the air intake is larger in the 90-91 cars?
Le Mans Master
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
with some work something this might be an option
(scroll down link)
http://www.thefind.com/cars/info-slp...page=2&local=0
SLP Blackwing Air-Box Lid, 2000-'02 V8 Camaro/FirebirdSLP Blackwing Air-Box Lid, 2000-'02 V8 Camaro/Firebird [21045] $99.95, or the complete kit next to it.
(scroll down link)
http://www.thefind.com/cars/info-slp...page=2&local=0
SLP Blackwing Air-Box Lid, 2000-'02 V8 Camaro/FirebirdSLP Blackwing Air-Box Lid, 2000-'02 V8 Camaro/Firebird [21045] $99.95, or the complete kit next to it.
Last edited by mseven; Aug 22, 2009 at 08:20 AM.
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Safety Car
Joined: Jan 2004
Posts: 3,783
Likes: 15
From: Northern California
Thread Starter
Race Director
Joined: May 2003
Posts: 10,749
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If you are positive that it will work, then I will probably go this route.
Melting Slicks
Joined: Nov 2000
Posts: 2,469
Likes: 6
From: Winchester Ontario
Hey Rick, if you're upgrading your air intake system, is your stock air filter housing for sale?
One of the "ears" that holds down the air filter cover is broken on mine on one side.
One of the "ears" that holds down the air filter cover is broken on mine on one side.
Le Mans Master
Joined: Apr 2005
Posts: 6,413
Likes: 9
From: The Old Dominion
You have a MAP sensor, so datalog the car. See what the air pressure is with the engine off to baseline the ambient pressure. Then run the car through one gear at WOT. Look at how low the pressure goes from the baseline up to high rpm. If it doesn't drop more than 1-2 kPa, you don't need a bigger intake.
Melting Slicks
Joined: Aug 2003
Posts: 3,389
Likes: 391
From: Lakeville MI
Similar to Mick's suggestion, I would try something like this:
http://www.corvetteguys.com/gms-0104-dual-cone-cai.html
But, I would also add a 90 degree tube running through a hole cut in the shrowd, and locate the filters underneath the shrowd and exposed to the cold air.
Your aux fan and impact bar may be in the way of the filters, however, so you would want to check the available space first.
http://www.corvetteguys.com/gms-0104-dual-cone-cai.html
But, I would also add a 90 degree tube running through a hole cut in the shrowd, and locate the filters underneath the shrowd and exposed to the cold air.
Your aux fan and impact bar may be in the way of the filters, however, so you would want to check the available space first.
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
You have a MAP sensor, so datalog the car. See what the air pressure is with the engine off to baseline the ambient pressure. Then run the car through one gear at WOT. Look at how low the pressure goes from the baseline up to high rpm. If it doesn't drop more than 1-2 kPa, you don't need a bigger intake.
Ideal would be no drop....do you know what the horsepower correction factor would be with a 1-2KPa drop???? my gut feeling is it is not large, but it is signification??
Team Owner
Joined: Dec 2007
Posts: 20,974
Likes: 261
I have one called corvette ramair, it is basicly a 3piece K&N unit like the claw, with a box, and a tunnel scoop built around it that goes under the front of the car.
It was very very expensive, and I have only heardof one other on a google search, and never seen pics except mine.
Technicly you could get an slp claw, and have a similar setup made, by boxing in the thing with a rectagle scoop that goes all the way through the front.
It has a template that you use to cut out the radiator shroud though, to let it sit down in, and under the car.
good luck.
I also have a stock 90' air box and cutlid for sale cheap if intrested
It was very very expensive, and I have only heardof one other on a google search, and never seen pics except mine.
Technicly you could get an slp claw, and have a similar setup made, by boxing in the thing with a rectagle scoop that goes all the way through the front.
It has a template that you use to cut out the radiator shroud though, to let it sit down in, and under the car.
good luck.
I also have a stock 90' air box and cutlid for sale cheap if intrested
Le Mans Master
Joined: Apr 2005
Posts: 6,413
Likes: 9
From: The Old Dominion
You will always have some pressure drop on a naturally aspirated motor. But that number is just a gut number.
Thread Starter
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
Similar to Mick's suggestion, I would try something like this:
http://www.corvetteguys.com/gms-0104-dual-cone-cai.html
But, I would also add a 90 degree tube running through a hole cut in the shrowd, and locate the filters underneath the shrowd and exposed to the cold air.
Your aux fan and impact bar may be in the way of the filters, however, so you would want to check the available space first.
http://www.corvetteguys.com/gms-0104-dual-cone-cai.html
But, I would also add a 90 degree tube running through a hole cut in the shrowd, and locate the filters underneath the shrowd and exposed to the cold air.
Your aux fan and impact bar may be in the way of the filters, however, so you would want to check the available space first.
Thanks.
Safety Car
Joined: Oct 2008
Posts: 4,689
Likes: 4
From: Yucaipa CA
I'm curious about these and if they actually work. Stock filter is in a cold air area, no matter how much air you "ram" in there the total filter surface area predicts how much air can actually enter and a stock filter has way more surface area then any of these.
I personally dont see how any of these would make any more power then the stock setup. If you meet the demand of how much air the engine demands at specific rpms, the how much air a filter can pass is all that matters and even 3 cone k & n filters doesnt come close to what the square stock filter can let through.
or am I wrong ????
I personally dont see how any of these would make any more power then the stock setup. If you meet the demand of how much air the engine demands at specific rpms, the how much air a filter can pass is all that matters and even 3 cone k & n filters doesnt come close to what the square stock filter can let through.
or am I wrong ????
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio