Occasional pop and puff..?
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Occasional pop and puff..?
During full throttle up changes I quite often get a muffled pop which is apparently accompanied by a small puff of sooty smoke.
Having searched it seems quite a common thing with scoobs.
I understand the pop is down to unburnt fuel igniting in a hot exhaust, just not the soot..?
Car is running extremely well and goes like ****..
05 WRX (340x333)
full decat 2.5"
ported headers
VF35
pink inj
walbro
Green panel
Sti TMIC/scoop & undertray
PRF7b's
ecutek
v-power + millers OB
etc, etc..
I'm not worried in the slightest by this, just curious..
BTW running oem recirc. DV. and not using any oil..
Having searched it seems quite a common thing with scoobs.
I understand the pop is down to unburnt fuel igniting in a hot exhaust, just not the soot..?
Car is running extremely well and goes like ****..
05 WRX (340x333)
full decat 2.5"
ported headers
VF35
pink inj
walbro
Green panel
Sti TMIC/scoop & undertray
PRF7b's
ecutek
v-power + millers OB
etc, etc..
I'm not worried in the slightest by this, just curious..
BTW running oem recirc. DV. and not using any oil..
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An0n0m0us
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28 September 2015 09:58 PM