UrS4boy. Does this explain anything?
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UrS4 2.2T Avant project
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Originally posted by Thuppu View PostHaha, Lars is closest. This time the MOT guy thought the IC wasn't stock, so have to remove it.
Other wise there was some small things like the rear brakes wasn't in balance, handbrake didn't take anything on the left side, tie rod on the right side had a small play, and the emissions didn't go through, propably because the cat wasn't warm enough. Some small things again.
BIG Turbo - seems stock & legit, check
Massive Downpipe - seems stock & legit, check
Big fuel line - seems stock & legit, check
Catch tank - seems stock & legit, check
Coil coversion - seems stock & legit, check
Air intake - seems stock & legit, check
WTF
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Originally posted by Thuppu View PostUrS4boy. Does this explain anything? [/IMG]
RS2'd 93 UrS4 5 spd sedan
94 UrS4 V8 6 spd manual avant
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Originally posted by UrS4boy View PostNot really. The cam cover already had a vent. With those holes and NO VACUUM to pull the vapours out (via the cam cover to MAF to turbo hose), you are actually LOADING the underside of the cam cover with vapours FROM the crankcase. Makes no sense to me whatsoever. Convince me why I am wrong.
Something like this:
Similar holes in the inner cover tube, to the cyclone, to the tank and back to the turbo
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Originally posted by A80Avant View PostIll agree to that. Ideally you want to have some vacuum in the system by connecting the tank back to the turbo via a cyclone. Something like this (photo). Similar holes in the inner cover tube, to the cyclone, to the tank and back to the turbo
This is why I have been suggesting using the OE PCV system but putting the catch tank/cyclone away from the turbo and downpipe and then routing the residual vapour back into the OE system. Much safer and neater/cleaner install. (IMO).
RS2'd 93 UrS4 5 spd sedan
94 UrS4 V8 6 spd manual avant
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The big guys tells that one reason for not recylcling the oil vapors is that they increase the knock sensibility. But I'm not a expert so can't say for sure. The whole breather system is done with the feelin that this could be good.
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - Project
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Originally posted by UrS4boy View PostI know. Let's put an oil catch tank right above the exhaust down pipe. That doesn't increase any risk of fire if it fails. Oh wait..... (literally)
This is why I have been suggesting using the OE PCV system but putting the catch tank/cyclone away from the turbo and downpipe and then routing the residual vapour back into the OE system. Much safer and neater/cleaner install. (IMO).
Frequent checks or a decent return line would not have any issues. On top of that, the current location will also keep the vapours/oil warm thus not allowing the water/white stuff to be created which you dont want to be returning on the sump.
I would possibly only change my return line from a heavy duty oil samco hose to perhaps a braided line with aeroquip connection to make you happierLast edited by A80Avant; 3 July 2013, 22:27.
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Originally posted by Thuppu View PostThe big guys tells that one reason for not recylcling the oil vapors is that they increase the knock sensibility. But I'm not a expert so can't say for sure. The whole breather system is done with the feelin that this could be good.
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Yes, of course. But when I did the breather system I was planning to use normal 98 fuel. Now when we gona remove the maf and a bov to atmosphere can be used I have been thinking of to connect the breather to the old bypass inlet on the air intake pipe.
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - Project
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Originally posted by UrS4boy View PostNot really. The cam cover already had a vent. With those holes and NO VACUUM to pull the vapours out (via the cam cover to MAF to turbo hose), you are actually LOADING the underside of the cam cover with vapours FROM the crankcase. Makes no sense to me whatsoever. Convince me why I am wrong.
Second thing is that to fully maintance or replace the 20 years old pcv-system would cost a fortune if you use OE-parts only.
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - Project
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New design SPNT(smart power nano tech) IC. Should be like 200% more efective than a 100x300x600 size china IC, and the size is really compact. You can fit it almost everywhere.
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - Project
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