WANTED ASAP! Any carbon sealed T3 Garrett turbo

[fad]

As the thread title. I need a carbon shaft sealed Garrett turbo... I have a huge list of numbers that match, here's a few:

TB0319 Renault
TB0327 Pug
TB0390 Merc
TC0304 Citreon
TA0305 Renault
TB0307 Ford
TB0310 Renault
TB0308 buik
tb0309 buik
tb0317 buick
TB0346 pug
tb0360 merc
TB0369 Merc
TB0344 Ford
TB0371 / 78 / 75 Crysler / Dodge
TB0355 Dodge
TB0306 Nissan


Anyone got anything? Please?? )

[bodgemonkey]

Any particular reason for wanting a carbon sealed unit? The newer types are more reliable and much easier to come by.

[fad]

Hello buddy.

Not strictly true, the reliability thing... Dynamic seals (which are a piston seal arrangement) are just cheaper to mass produce and manufacture, and they are ticketyboo for any blow-through turbo application (FI or carbs). However, this is the beasty the turbo lives on:



What you are seeing is an old-skool junkyard turbo setup, drawing through a Dellorto DHLA and ramming it into the manifold, fuel, air and all. So, what happens in a modern turbo car when you close the throttle, because the throttle is after the turbo, you just have a bunch of compressed air left in the manifold that needs to be vented or recirculated. The turbo is always at positive, or atmospheric, pressure. This is fine as the piston in the dynamic seal remains seated throughout. But, because I'm doing things the stupid old skool way (and there are reasons for that we'll not get into here) my throttle is before the turbo. So, what happens when I shut my throttle is a vacuum is created in the turbo. With a dynamic seal, this unseats the piston and my engine sucks oil into the intake through the now un-sealed shaft. This messes with the fueling, fouls the plugs, blows soot out of the exhaust, and creates a right old mess which, on boost (with the messed up fueling and all), can create lean conditions or worst, detonations. All in all, a whole lot of bad juju going on (which is the name of the car!).

So, to prevent this, I need a carbon shaft seal which can cope with vacuum and boost conditions, and will eliminate the problem entirely. I CAN convert my Garret TB0358 that is on there at the moment to carbon seal but this is a moot point, as there's a HONKING great crack over the wastegate hole now (kaboom!) which has also blown a chunk of exhaust turbine housing out, which is preventing the turbo from making any boost at all.

Lesson to all here doing a draw-through system: Don't use dynamic seal turbos!!!!!