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mark '87 930's Avatar
Join Date: Feb 2006
Location: Toronto, Ontario
Posts: 727
K27 turbo intake rubber/silicone tube

I'm trying to install this K27 and I a unbelievably frustrated. The original tube that makes the connection from the metal pipe to the turbo intake is old and cracking.. so I needed to replace it.. I purchase what I thought was the equivalent silicone turbo hose (2 3/4") but the thing just doesn't fit onto the turbo. I measured the turbo, and sure enough it's 3", enough so that the hose doesn't stretch AT ALL.

Add MANY colorful adjectives where you can up above because I deleted them time after time thinking I can't type that here!!

So now tomorrow is good Friday and I won't be able to get another hose. That being said, should I get a 2 3/4" to 3" transition hose, or should I just get a straight 3" hose and clamp it down. I ask because this is the intake, and non pressurized.


Frustrated as all hell
1987 930
1956 Chevy 3100
2009 Subaru Forester
2003 KX250 X2(I like my toys!!)
Old 04-05-2007, 05:39 PM
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Registered User
WydRyd's Avatar
Join Date: Mar 2002
Posts: 3,563
Just get a 3" to 2 3/4" silicone reducer. Thats the simplest solution I'd say.

The OEM turbo has a 2 3/4" OD on the compressor/cold side. If you have gone with a K27 with an "S" cover, then yes, it'd be 3.0" OD. You'd need a reducer to interface the new compressor to your existing intake pipe.

I understand how you feel... little things like this can really put a damper on upgrades
'89 911 Turbo Cab
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Old 04-05-2007, 08:18 PM
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