Alternative to turbo timer???

[LOW25T]

Was speaking to a guy today who said that he used to do alot of work on turbos about 10-15 years ago.

He told me that he made a device that would keep oil flowing through the turbo for about a minute after the engine was shut off... cant remember exactly how he explained it but basicly he had a seperate cannister with a small amount of oil in it, which when the engine was shut off, a valve would open and allow this cold oil to flow through...

anyone heard of anything like this? or is this dude talkin crap?

[Guest RedLineGTR]

It could be done, but just wondering if it would help much since when the engine is on the turbo is spinning at a specific rate and while the engine is on all the oil is flowing through the bearings etc while they are moving etc, i dont think letting oil pass through the turbo while its not spinning would be so effective. I myself dont use a turbo timer just for the fact that 5-10min before i enter my driveway i take it easy and let things cool down, and then give it 20 sec to get out of the car etc then shut it off. My 2 Cents.

[LOW25T]

but dosn't the turbo spin for a while anyway after the engine is shut off...?

anyway this guy was talkin it up a fair bit, saying it was far safer than a turbo timer, but when i asked him why he didnt patent it or anything, he just kind of trailed off...

[TTT]

but dosn't the turbo spin for a while anyway after the engine is shut off...?

No it doesn't.

Ball bearing turbo's take a few seconds to spin down but that's about it..

[maccattack]

More than likely what you are talking about is an Accusump.

Apart from being used as a surge protector in the engine they can also be used as turbo pre-oilers. Check it out at http://www.accusump.com

[Tosh]

This sounds similar to a system that Subaru use in the B4 engines to cool the turbo down properly.

Just use a turbo timer and make sure it's wired to the handbrake so when the handbrake is disengaged it'll shut the car off immediately