POD Filter Results - WRX vs STi
#1
Hi
I had a cold air induction kit, with pod filter fitted to my MY01 WRX. I never had it on a dyno, but the "real life" improvements were huge (easily comparable to decatting the exhaust).
I kept the system when I bought the STi 7.
Fitted it yesterday. And...the car felt slower! Boost only held to 0.8 bar...the punch in the back from 4000 rpm was gone...it really felt like the car was down on performance.
Refitted the OE airbox immediately.
Why would this be? It worked perfectly well on the WRX...but instead of helping the STi, it seemed to choke it...
I had a cold air induction kit, with pod filter fitted to my MY01 WRX. I never had it on a dyno, but the "real life" improvements were huge (easily comparable to decatting the exhaust).
I kept the system when I bought the STi 7.
Fitted it yesterday. And...the car felt slower! Boost only held to 0.8 bar...the punch in the back from 4000 rpm was gone...it really felt like the car was down on performance.
Refitted the OE airbox immediately.
Why would this be? It worked perfectly well on the WRX...but instead of helping the STi, it seemed to choke it...
#3
It's basically a pipe that relocates the pod airfilter to inside the wheel arch. So there's no/little hot air involved.
And it worked perfectly fine on the WRX (during the summer). It is now winter here and damn cold, so temperature doesn't come into play.
And it worked perfectly fine on the WRX (during the summer). It is now winter here and damn cold, so temperature doesn't come into play.
#5
Nope.
The STi has the same OE airbox and filter as the WRX.
So, there shouldn't be a problem there -what works for the one should work for the other?
Maybe the car gets too much air. Then, knowing it will be/is running lean, it limits the boost? Do you think the VVT might play a role?
The STi has the same OE airbox and filter as the WRX.
So, there shouldn't be a problem there -what works for the one should work for the other?
Maybe the car gets too much air. Then, knowing it will be/is running lean, it limits the boost? Do you think the VVT might play a role?
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