Unifilter Intake

[macka'sxr6t]

Guy's I would'nt even consider a oil filled foam filter. I have seen it proven on APS's dyno on my car whilst doing R&D on what type of filter to use in my Shaker induction. 10kw less power than a BMC or K&N pod filter.

macka

[XR6T_ENVY]

Guy's I would'nt even consider a oil filled foam filter. I have seen it proven on APS's dyno on my car whilst doing R&D on what type of filter to use in my Shaker induction. 10kw less power than a BMC or K&N pod filter.

macka

Hey,

so I still have the factory air filter and I am going to get a K&N high flow filter.

Are there different types of K&N filters or is there pretty much just one made for XR6T's and that's the one everyone is talking about?

Also, will it improve a factory XR6T's kw's?

[tmac450]

Had an old turbo sigma years ago . HAd a unifilter on it , awesome filtering but started loosing power after about 6 months . Spent thousands to find the problem , went to a bloke in Windsor , some turbo guru , he was baffled too , after bout an hour of testing he told me to pull filter off and check . I went up the street and the car felt like it had an extra 50 hp . He told me oil foam filters are OK new , but are crap after a few weeks . This was just my experience with them . Maybe they are better these days .

You have to clean them, usually every 5,000ks.

Like most things, if you maintain them properly, they shouldn't wear out that quickly.

It all depends on your set-up for how they work, I've tried a few different types of filters on different cars, with mixed results. In my experience, the K & N type filters only offer high flow, because they do stuff all filtering and let way too much dirt through.

A few years ago, I was invloved with some dyno testing with filters through a car club.

With a 92 Honda CRX, a 1,500k old factory cardboard filter was compared to a new cardboard filter, a K & N Pod, a Uni Filter Pod, a Finer Filter Pod and no filter at all. The most power was the brand new cardboard filter, then the Uni Filter Pod, then the 1,500k old cardboard filter, then the Finer Filter, then the K & N equal with no filter at all. The mechanic doing the testing figured that the K & N was too free flowing for the car's set-up and the car was actually loosing power with the K & N and no filter at all.

Also tested was an EL XR6 and an AUII XR6. Funny thing was thet the EL lost power on everything except the brand new cardboard filter, but the AUII had the biggest gain from the Uni Filter pod.

What was established was that, if just fitting a different filter using the an existing tune, then the results will be hit an miss, because the cars have been tuned to a different set-up (it even matters how long the induction piping is). However, if you fit a different filter and then have it retunes/flashed, then the gain is more likely to be higher than if the filter was left as is.

Before you all flame me, I am just recounting some past research, not quoting gospel.

[castro7]

after checking this unifilter out im thinkinkin it might go ok mounted in the lower grille as a cold air intake piped back to the port for the stock snorkle, which seems to suck hot air... probably a down side to it.. but just a thought that I was rattling

[seventytwo]

Castro, not quite sure what you are after but the best CAI for the stock airbox is the F6/typhoon intake.

http://www.fordxr6turbo.com/forum/index.php?showtopic=38056

check out this thread and see if it helps.

[castro7]

thanks for that seventytwo.... I grabbed one of those.... yet to fit it though... bit worried ford will go cnuts about it and my warranty against exploding engine components will be void