Does exhaust volume equal power?
Thread Starter
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
Does exhaust volume equal power?
I just switched my Vararam out for a K&N FIPK.......... I know, I know it kills me to do it because I have had every intake on the market and times at the strip have shown the VR to be king period.
HOWEVER my car is getting a tigershark front and I can not use the VR soooooo I got the K&N and drilled some holes in the shroud under the filter. The exhaust tone seems a little more subdued now and when I shift at 3.5k it used to give a little pop (like a very small backfire sound) but does not do it anymore.
My questions are
1) does the decrease in exhaust volume mean my car is not breathing as well and I am not getting all I can out of the car?
2) does the lack of this small pop between shifts show that the airflow coming in is smoother and is not causing a hiccup?
HOWEVER my car is getting a tigershark front and I can not use the VR soooooo I got the K&N and drilled some holes in the shroud under the filter. The exhaust tone seems a little more subdued now and when I shift at 3.5k it used to give a little pop (like a very small backfire sound) but does not do it anymore.
My questions are
1) does the decrease in exhaust volume mean my car is not breathing as well and I am not getting all I can out of the car?
2) does the lack of this small pop between shifts show that the airflow coming in is smoother and is not causing a hiccup?
Last edited by Cajun @ Edgyvette; Aug 30, 2007 at 01:22 PM.
Thread Starter
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
Burning Brakes
Joined: Feb 2005
Posts: 752
Likes: 1
From: Tulsa OK
LOUD does not equal POWER
Its pretty embarrassing when you learn that the hardway some evening on the street - especially if your girl is in the car with you.
NOT 
I've noticed that there are some Mustang GTs running around with a nice exhaust sound but they are wimps when it comes to power.
When you said "volume" I assume you meant loudness and not the amount of exhaust flow. Higher flow does mean more power because it lets the engine breathe better. More air = More Power.
Its pretty embarrassing when you learn that the hardway some evening on the street - especially if your girl is in the car with you.
NOT I've noticed that there are some Mustang GTs running around with a nice exhaust sound but they are wimps when it comes to power.
When you said "volume" I assume you meant loudness and not the amount of exhaust flow. Higher flow does mean more power because it lets the engine breathe better. More air = More Power.
Last edited by EStreeter; Aug 30, 2007 at 11:08 AM.
Thread Starter
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
LOUD does not equal POWER
Its pretty embarrassing when you learn that the hardway some evening on the street - especially if your girl is in the car with you. NOT
I've noticed that there are some Mustang GTs running around with a nice exhaust sound but they are wimps when it comes to power.
When you said "volume" I assume you meant loudness and not the amount of exhaust flow. Higher flow does mean more power because it lets the engine breathe better. More air = More Power.
Its pretty embarrassing when you learn that the hardway some evening on the street - especially if your girl is in the car with you.
NOT I've noticed that there are some Mustang GTs running around with a nice exhaust sound but they are wimps when it comes to power.
When you said "volume" I assume you meant loudness and not the amount of exhaust flow. Higher flow does mean more power because it lets the engine breathe better. More air = More Power.
Cajun
Race Director
Joined: Jul 2007
Posts: 10,961
Likes: 2,642
From: Texas Hill Country
Not necessarily. Simple things like bends, material used, length, etc can change tone and volume. I seriously doubt there is a difference in flow enough to alter power or AF ratios by any meaningful amount.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
In takes add some power, but not much. Real CAI are all about the same.
LT headers, and free flowing exhaust also help.
Doing a Dyno tune even to a stock car will provide a huge benefit
Now, PP heads and a great cam, look out
LT headers, and free flowing exhaust also help.
Doing a Dyno tune even to a stock car will provide a huge benefit
Now, PP heads and a great cam, look out
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