What is the highest flowing cat?
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What is the highest flowing cat?
I found a 3rd party test showing Carsound, FLP, both stock cats, and TTS cats tested against eachother.
FLP flowed 5 cfms more than the carsound but i know they are about twice as much.. Those too were much better then the rest.
Now i saw claims that Random Tech Cats flowed 40 cfms under Carsounds.
But i did not find anything on Catco cats other than that they flow good. How good i dont know?
Right now I can pick up carsound cats for 30 bucks each 3inch in and out.
Any links to tests on cats?
FLP flowed 5 cfms more than the carsound but i know they are about twice as much.. Those too were much better then the rest.
Now i saw claims that Random Tech Cats flowed 40 cfms under Carsounds.
But i did not find anything on Catco cats other than that they flow good. How good i dont know?
Right now I can pick up carsound cats for 30 bucks each 3inch in and out.
Any links to tests on cats?
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i know this but my car is loud as fuck. and after 45 minutes i get out of the car and smell like gas
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A couple of tricks to address the noise and smell issues you describe. First, look into installing a resinator and make sure the tip of the exhaust exists past your bumper cover.
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Hmmm i guess we arent speaking the same language here... I think what Im trying to ask is "What cat flows the best?".... ?????
I already did some research and found some cats that will support my power output without sacrificing horsepower.
tips are past the bumper... i like my tips... not changing them...
I already did some research and found some cats that will support my power output without sacrificing horsepower.
tips are past the bumper... i like my tips... not changing them...
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Originally posted by ZDriver96
I already did some research and found some cats that will support my power output without sacrificing horsepower.
I already did some research and found some cats that will support my power output without sacrificing horsepower.
-Keith
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check this out .... http://www.installuniversity.com/in...on11.122001.htm
Each pair of catalytic converters restrict about eight ( rear wheel horsepower on stock LS1’s. David Vizard’s research shows that 2.2 cfm of flow at 20.4” of H2O will support 1 horsepower. 2.2 cfm is the optimum flow through the exhaust system and reflects open pipe flow. Assuming that the average LS1 puts 300 horse power to the ground, that is a 2.67% increase in power.
So for a stock LS1 that puts 300 to the ground and still has both cats but on a 2.5 inch y pipe.. An 8 rwhp increase happens when the cats are removed...
HP= Flow (cfm)/2.2 cfm 567.8 cfm/2.2 = 258.1 horses..
This means that the stock cats can support up to 258.1 horses...
("looks" like study was done in 1999)
So if i want two carsound cats they will flow 372/7 each x2= 755.4cfms
745.4/2.2 = 372.7 hp 2.5 inlet/outlet carsound cats can support..
I wonder if 28 inch H20 flow tests were for 3inch cats.. im not sure..
If thats the case then 2 3inch carsound cats can support 436 rwhp without losing any power at all...
Sounds good too me...
Each pair of catalytic converters restrict about eight ( rear wheel horsepower on stock LS1’s. David Vizard’s research shows that 2.2 cfm of flow at 20.4” of H2O will support 1 horsepower. 2.2 cfm is the optimum flow through the exhaust system and reflects open pipe flow. Assuming that the average LS1 puts 300 horse power to the ground, that is a 2.67% increase in power.
So for a stock LS1 that puts 300 to the ground and still has both cats but on a 2.5 inch y pipe.. An 8 rwhp increase happens when the cats are removed...
HP= Flow (cfm)/2.2 cfm 567.8 cfm/2.2 = 258.1 horses..
This means that the stock cats can support up to 258.1 horses...
("looks" like study was done in 1999)
So if i want two carsound cats they will flow 372/7 each x2= 755.4cfms
745.4/2.2 = 372.7 hp 2.5 inlet/outlet carsound cats can support..
I wonder if 28 inch H20 flow tests were for 3inch cats.. im not sure..
If thats the case then 2 3inch carsound cats can support 436 rwhp without losing any power at all...
Sounds good too me...
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