Jerry Scott[CO]
Viper Owner
Take a look at the data derived from a test of several well known air filters:
http://home.usadatanet.net/~jbplock/ISO5011/SPICER.htm
http://home.usadatanet.net/~jbplock/ISO5011/SPICER.htm
interesting air filter test
- Thread starter Jerry Scott[CO]
- Start date
Ulysses
Enthusiast
Very interesting INDEED!
Ron
Enthusiast
As far as I can tell, we have 3 primary filter choices:
OEM
K&N / S&B
Fram
OEM appears to be quite restrictive and costs HP on the dyno, about 10 on my car.
K&N clearly is less restrictive but according to the test (and logic) passes significant dirt. Oil analysis backs this up as you'll typically see higher silicon levels running K&N. In my case, 17ppm vs. 7ppm.
Fram, though not my choice for oil filters, appears to have a nice compromise, a thinner foam pre-filter than stock but still a treated paper element.
Next dyno day I'll compare the Fram and K&N HP numbers.
OEM
K&N / S&B
Fram
OEM appears to be quite restrictive and costs HP on the dyno, about 10 on my car.
K&N clearly is less restrictive but according to the test (and logic) passes significant dirt. Oil analysis backs this up as you'll typically see higher silicon levels running K&N. In my case, 17ppm vs. 7ppm.
Fram, though not my choice for oil filters, appears to have a nice compromise, a thinner foam pre-filter than stock but still a treated paper element.
Next dyno day I'll compare the Fram and K&N HP numbers.
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