5 replies to this topic

[Jamesrich]

hi all, Currently in the middle of a conversion from a 998 to a 1380 turbo, engine has been built and ready to go into the car, just having a problem of how to pipe the t2 turbo up, im unsure of which pipes to put where? does anyone have a diagram of how to do this? thanks

[Ethel]

I'm guessing you mean water & oil? The oil needs gravity to drain and you should be able to see the turbo's shaft if you remove the connections. Blowing in one port will show which other one it is connected to. Water ports will be the same size, oil feed will be larger than the drain.

[Monstrous]

Ethel, im sure on the T2 (or at least the T2 i have anyway) that the oil drain is larger than the feed.

This is because of the gravity return, so it needs to be larger to prevent pressure build up.

If you've got your turbo mounted up correctly on the manifolds, looking down the turbo shaft, the oil feed and drain will be at 12 and 6 o'clock respectively. the water ports will be at 3 and 9 o'clock. The water ports can be connected either way, with no feed and return side as such.

Edit: this picture may help. The brazed banjo fitting in the centre of the picture is a water feed. The right hand fitting is the oil feed, the left is the oil drain.

Edited by Monstrous, 03 March 2012 - 12:32 PM.

[Frisco]

The drain is always bigger than the feed, its under pressure going in

[Ethel]

Thanks Monstrous, I made a boo boo (meant the other way round - honest!)

[Turbo Phil]

As already said the drain will be at the bottom & needs to be as unrestrictive as possible as it drains under gravity.