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VelocityAP Flow Bench Report - V8 Vantage 200 Cell Cats

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Old 09-23-2016, 11:06 AM
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VelocityAP Flow Bench Report - V8 Vantage 200 Cell Cats

Hi Guys,

Got the flow bench up and running, a part of our commitment to continually improve our products.

2006-2010 V8 Vantage shows some big gains - +46% from stock to our sport cats, and +88% for Cat Deletes!

 
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Last edited by Stuart@VelocityAP; 09-23-2016 at 11:10 AM.
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Old 09-23-2016, 12:07 PM
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How much db does the noise (sound) improve with the car delete?
 
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Old 09-23-2016, 12:13 PM
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Originally Posted by Zettinger
How much db does the noise (sound) improve with the car delete?
Do you mean as compared to stock or to sport cats?
 
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Old 09-23-2016, 01:35 PM
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Originally Posted by Zettinger
How much db does the noise (sound) improve with the car delete?
It's completely silent with the car delete.
 
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Old 09-23-2016, 02:55 PM
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Are you testing this on the car or are you doing this with a compressor on a bench as those number do not seem to me to be accurate for a real world test.
Not trying to say anything, just want to get an idea of where you are coming from.
 
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Old 09-23-2016, 03:30 PM
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Originally Posted by randyb
Are you testing this on the car or are you doing this with a compressor on a bench as those number do not seem to me to be accurate for a real world test.
Not trying to say anything, just want to get an idea of where you are coming from.
Airflow bench:

https://en.wikipedia.org/wiki/Air_flow_bench

Measures pressure drop and airflow.
 
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Old 09-23-2016, 06:31 PM
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116 CFM is no joke! Great data set, thanks for sharing!
 
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Old 09-26-2016, 10:05 AM
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Originally Posted by randyb
Are you testing this on the car or are you doing this with a compressor on a bench as those number do not seem to me to be accurate for a real world test.
Not trying to say anything, just want to get an idea of where you are coming from.
On a flowbench. Much faster and easier to test and more accurate results.
 
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Old 09-27-2016, 01:34 PM
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so, with cat delete and stock exhaust...what would you say the noise increase is in and outside the cabin? Playing around with different options. also, if we have a tune from you, would the tune need to be updated with the cat delete?
 
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Old 09-27-2016, 02:03 PM
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High flow cats increase sound by 20-25% I would say. It's a substantial difference
 
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Old 09-27-2016, 02:24 PM
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Originally Posted by Stuart@VelocityAP
On a flowbench. Much faster and easier to test and more accurate results.
Yes and no, testing exhaust flow in a given circumstance, does not test flow the way a car puts out exhaust, which is starts and stops and not flowing constantly which is what the bench test does. Bench tests will definitely show you if you are making gains, but they are examples only and should not be taken as a end all, be all test.

Sounds like you have a nice product, would love to see real world results.
 
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Old 09-27-2016, 02:42 PM
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Originally Posted by got one
so, with cat delete and stock exhaust...what would you say the noise increase is in and outside the cabin? Playing around with different options. also, if we have a tune from you, would the tune need to be updated with the cat delete?
MUCH louder. 200 cell cats with a stock back box is pretty loud. Deletes are not going to be for most people.

Depends what tune you have from us and what was specified at the time. If you do need an update and already have our tuning, the update is free anyway
 
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Old 09-27-2016, 02:55 PM
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so are the sport cats the 100 cell or the 200 cell...sorry if it is a dumb question...just looking for clarification.
 
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Old 09-27-2016, 02:57 PM
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Originally Posted by got one
so are the sport cats the 100 cell or the 200 cell...sorry if it is a dumb question...just looking for clarification.
200 Cells.
 
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