minimum k&n length

what is the minimum length of k&n filter that has a 4" diameter at the base of the filter where it will connect to the turbo. when installing my t-4 60-1 turbo.
 
yeah i have the catalogue, but i was wondering if there was a minimum length i should be going with, in order to use the turbo charger most efficently
 

4C FED

Absolutum Dominium
You are going to want to go with the largest size you can fit. Kind of obvious, I know. The bigger the better.

Measure. Find out how much room you have to play with.
I imagine you have a 90 deg. L coming off the turbo. You'll also need a short pipe between the L & the filter.
Measure from the end of the L to wherever you plan to route the filter.
 
Do you know what the main difference is between the XSTREAM K&N filters compared to the normal ones? Can I get away with a shorter one of the XSTREAM rather than a long normal one? Are they good for normal street use or is there some way its a race only application?
 

Will_in_China

Truckless Wonder
Re: minimum k&n length

turbo jimmy said:
what is the minimum length of k&n filter that has a 4" diameter at the base of the filter where it will connect to the turbo. when installing my t-4 60-1 turbo.

I use all 9 inches baby...
 

nightdiver

Active member
Check at Mikes the 4" big mouth air filter and the 4" 90* Cobra head elbow
I just installed those things.......FLOW is the name
 

ghettosled

SYTY SUPERSTORE
6" flows up to 400hp. 9" is capable of flowing upwards of 625hp. Not to say a 6" wont work above 400hp, but it most likely becomes a small restriction.
 

Will_in_China

Truckless Wonder
ghettosled said:
6" flows up to 400hp. 9" is capable of flowing upwards of 625hp. Not to say a 6" wont work above 400hp, but it most likely becomes a small restriction.

Cool!

That data on the K&N site?

-W
 

Will_in_China

Truckless Wonder
turbo jimmy said:
hey thanx, now next question, whats the difference between the nornal k&n filter compared to their xstream filter?

Is this the filter that has the promised higher flow characteristics?
I saw an ad in Truckin' for some new filter that "out-flows" K&N, but who cares if the 9" goes to 600 and some odd horsepower...

-Will
 

smeagol

Active member
The end cap of the XSTREAM is filter material rather than plastic/rubber/metal offering more airflow of a similar sized filter with the above mentioned material as an endcap. We just tried to order one and after 3 weeks we were told that it was a European item and couldn't be had. Jegs can special order most of 'em.
 
are they that much better than the normal filters, i am trying to pack in, as much punch as possible in a tight area. as most of us already are!
 

Will_in_China

Truckless Wonder
Well I was looking at it like a cost benefit analysis...
Spend an extra three days for something that will most likely add .000000000000000000000000000000001 to my quarter, or buy a K&N and invest time and energy (and $) elsewhere.

-Will
 
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