Turbo Timers

[xrdreaming]

Sorry mate I couldn't tell you. All I can do is quote the manufacturer of the turbo, they design and make them so they should know better than you or I.

Sasha I think the only good place for it is on the steering column as you tissue box holder is already used.

[AGENT ORANGE]

I know its just what they have said not having a go at you or anyone just seems a bit far fetched in my experience with the turbo cars ive owned driving these things hard at night can get the manifold a red tinge to it that cant be safe just turning it off. All good

[Kimberley Scott]

Lets look at what the dumb f*cks like me can gather, hundreds of T's and Phoons on this site, all driven hard on many occasions. Fark all with timers. have we seen failures yes a few, wast the lacjk of timer the cause, no it was not.

Mate you dont need a turbo timer, its old hat, may I sell you a bridge we a coupem of good ones up here in brissy going cheap (I DONT HAVE GRAT BOOBS BUT).

Scotty

[AGENT ORANGE]

Pointless Post ^^^^^ Im from Brisbane haha beatie wasted plenty on bridges when I lived there dont get me started.

Forgot I was ordering people to buy them an it was a must mm didnt read my posts at all, its your choice what you do with your car mate im just talkin from experience that's all.

This is one of the problems on here though no one seems to have there own ideas and when people suggest stuff unless its agreed on by the whole community there ripped apart like come on grow up. Or 10 people post the same answer my argument is justified

that's why no one ever bothers search funny thing is if everyone had the same mentality we all be driving the same XR6T. Because people get on a keyboard an quote the same thing over an over having no idea what there talking about. Most People who think for themselves would understand why I query this how hot water can cool a hot car and a red hot turbo 500-700C.

Edited 18/03/08 01:59 PM by AGENT ORANGE

[Kimberley Scott]

My post may be tounge and cheek and I do understand where you are comming from, but refute my post why am I wrong?

Scotty

[AGENT ORANGE]

I didnt say anywhere that your wrong at all. there are many Ts out there that dont run them

I just want to understand why now even big new HKS and Trust turbos dont have this technology these are like 3-4 x more expensive then a garrett. I just query how it can cool 500-700C temps and that how that temp when the oil supply is stopped instantly can save a turbo

There are also a fair few people on here that run them aswell. The use of a timer is simply in my mind to give the car time to cool if you have been thrashing it if your late or your not prepared to sit and wait only time is when im late for work mine is set to 30secs as leaving them to long is a pointless exercise just heats it all back up. In the 30secs though it gives time for the oil to level correct again and to let the excess oil filter away from the turbo.

[Kimberley Scott]

Would you concede that 30 sec is enough run down then.

If you do then when does a car get flogged and turned off strait away.

I can think of a couple.

Flooging down a highway, sh*t I neeed fuel pull into a servo directly of the highway and shut off.

Involved in a police chase get away drive into a driveway and shut off so you cannot be seen or heard.

The fact is that no one flogs these cars and shuts them down instantly (if they do they have rock in their heads). Thermosyphon or not these turbos do something to keep some kind of fluid going through them to dispearse heat.

Turbo timers make awesome sense and have thought about buying one myself, but I strongly believe that the time has come that technology has produced turbo cars that do not require them, I belive that by what is aid in the post about us forumites flogging our cars over hundreds and thounsands of kilometers without failures.

Scotty

[AGENT ORANGE]

Well I think 30 secs is quite alot in most instances. Ive always gone with the 30sec rule as I said previously running for long periods of time is useless you may aswell take it out then turn it straight off. Ive seen people with them on for 2-3 minutes and that is pointless and stupid. In sayin that I always warm my car up before I drive it, give it a minute or so but my drive way is mount everest and cooling it down has always been that way.

The things that have been posted on here in diff topics about timers is that you can turn your car off straight away an itll still cool down an not do any damage. Yes They are water cooled but that water is still coming from your block and that is still gonna be hot before it get to the turbo let alone when it gets to disapating the heat the water will instantly rise up to 500 degrees or so for example as coollant makes it an anti boiling liquid so it just sucks all the heat in.

So in saying that how long does it take for thermosyphing to work is it a hour long process or is a 5 minute process, does it syphen through the whole amount of water in the coolant system does it keep goin after that as that water will now be extremely hot. I can drive my car normally put it away leave the bonnet open and garage door closed and cant touch the block without burning myself for at least an hour.

If it gets that hot letting the manifold and turbo cool down to idling temp and giving it time for oil to settle cant be a bad thing.

The only reason I ask is cause everyone just chucks this up but no one really has any info on it. I know technology is gettin better but looking at japanese turbos and lets face it there the best at making them none of them use this system they use the cool down to normal operating temp and then turn off to let the rest cool down.

[Kimberley Scott]

Mate this has been answered and quite intelligently and convincingly, farked if I know where though. Take as read though, you do not require a Turbo Timer, they are bling at best on our cars.

Scotty

[seventytwo]

Some quick reading

http://en.wikipedia.org/wiki/Thermosiphon

Thermosiphon (alt. thermosyphon) refers to a method of passive heat exchange based on natural convection which circulates liquid in a vertical closed-loop circuit without requiring a conventional pump. Its intended purpose is to simplify the pumping of liquid and/or heat transfer, by avoiding the cost and complexity of a conventional liquid pump.

Simple thermosiphon

Convective movement of the liquid starts when liquid in the loop is heated, causing it to expand and become less dense, and thus more buoyant than the cooler water in the bottom of the loop. Convection moves heated liquid upwards in the system as it is simultaneously replaced by cooler liquid returning by gravity. In many cases the liquid flows easily because the thermosiphon is designed to have very little hydraulic resistance.

Phase-change (heat pipe) thermosiphon

In cases when the thermosiphon fluid incurs excessive resistance to flow, or excessive heat is applied, the liquid may be heated beyond its boiling point (assuming it is a liquid that boils), thus causing a phase change as the liquid evaporates to a gas (vapor) (such as steam). Since the gas is much less dense than the hot liquid, and thus much more buoyant, the convective pressure is increased considerably. This is may be referred to as a "heat pipe thermosiphon". In addition to thermosiphon convection, heat transfer is somewhat increased by the phase change of a fluid inside a closed system. It operates on the principles of buoyancy to move the fluid through the system.

In some situations the flow of liquid may be reduced further, or stopped, perhaps because the loop is not entirely full of liquid. In this case, then the system no longer operates on convection principles, so it is no longer a simple "thermosiphon". Heat can still be transferred in this system by the evaporation and condensation of vapor; however, the system is properly classified as a heat pipe. If the system also contains other fluids, such as air, then the heat flux density will be less than in a real heat pipe, which only contains a single fluid.

The thermosiphon has been sometimes incorrectly described as a 'gravity return heat pipe' [1]. A wick is usually a necessary feature of a heat pipe to allow the return of condensate to the evaporator via capillary action, whereas this function is not needed in a thermosiphon as gravity allows the movement of the liquids [2]. The wick allows heat pipes to transfer heat in the absence of gravity, which is useful for space applications. A thermosiphon is, in a sense, "simpler" than a heat pipe [3]. (Single-phase) thermosiphons can only transfer heat "upward", or away from the acceleration vector. Thus, orientation is much more important for thermosiphons than for heatpipes.