Is a Turbo Timer necessary!

[GUEEY]

i have a GU TD42T, still stock standard.
i do plan to work the Standard turbo i little bit, nothing to wild.
i live in the Dandenong ranges so the truck does get pushed hard up the mountain for a few minutes and then turned off in the drive way.
is a turbo timer needed in my situation.

Grant.

[bogged]

i have a GU TD42T, still stock standard.
i do plan to work the Standard turbo i little bit, nothing to wild.
i live in the Dandenong ranges so the truck does get pushed hard up the mountain for a few minutes and then turned off in the drive way.
is a turbo timer needed in my situation.

Grant.

cheap insurance for $100 aint it

Or park the car while you unload it,leave idling for few 5 mins or so.
fit an EGT and see how soon it goes down.

[GUEEY]

i have a GU TD42T, still stock standard.
i do plan to work the Standard turbo i little bit, nothing to wild.
i live in the Dandenong ranges so the truck does get pushed hard up the mountain for a few minutes and then turned off in the drive way.
is a turbo timer needed in my situation.

Grant.

cheap insurance for $100 aint it

Or park the car while you unload it,leave idling for few 5 mins or so.
fit an EGT and see how soon it goes down.

Who is selling turbo timer these days, ARB used to but not any more!

[gqtrol]

i agree with bogged good insurance unless like what bogged said you let your car idle for a few minutes when yo get home better off digging into your pocket and buying one if you have a bit of no how go by one from auto bahn and install it your self.

[cuzza]

Have a look on ebay mate, you can get some turbo timer quite cheap, you just have to be carful that what you buy will fit your car. Do some research before you buy and ask questions, and you should be right.

[Cossie]

i have a GU TD42T, still stock standard.
i do plan to work the Standard turbo i little bit, nothing to wild.
i live in the Dandenong ranges so the truck does get pushed hard up the mountain for a few minutes and then turned off in the drive way.
is a turbo timer needed in my situation.

Grant.

cheap insurance for $100 aint it

Or park the car while you unload it,leave idling for few 5 mins or so.
fit an EGT and see how soon it goes down.

Who is selling turbo timer these days, ARB used to but not any more!

ARB do sell them (at least the Brighton store does anyway )

[BigQQQie]

ARB Still produce and sell turbo timers!!!!!!

[not not]

I am with everyone else. There cheap insurance. But a pain in the ass when you park ya car and walk away and someone runs ya down to tell ya that you left ya car running.

[bogged]

Who is selling turbo timer these days, ARB used to but not any more!

TJM in Seaford. Ask for Alan. He has them on the shelf.

[bogged]

I am with everyone else. There cheap insurance. But a pain in the ass when you park ya car and walk away and someone runs ya down to tell ya that you left ya car running.

its actually illegal to walk away with your engine running like that. Stupid I know but there ya have it.

Also some insurance companies wont cover you with them.

[not not]

I thought it was only if your keys are in the ignition???

[bogged]

I thought it was only if your keys are in the ignition???

engine running .. which is fuckin stupid when you think why bother with the TTimer.
what I was told is incase it jumps into gear etc etc usual fiction shit that would/could never really happen...

[RN]

213 (2) of the Road Rules states that you have to turn off your engine, remove keys and lock the vehicle if you are going to be away etc...interesting thought about turning off the engine.

Switching the engine off..is it the same as making it stop running or turning the electrics /management system to off.

I will have to make some enquiries on that. When I did my traffic studies horses didn't have timers.

A cunundrum that requires more Merlot.

Night.

[turps]

Also know of someone that fitted one of the ARB items and it was the wrong type and it fried itself. Dont know exactly what happened. But SParky might be able to answer (maybe even Juzza).

[Gruntahunta]

I have a GU 4.2TDI which i put a turbo timer on. I found that it interferes with the Sub Tank circuitry somehow and faults it all the time. The timer is run through relays so there is next to no strain on the system but this didn't seem to do any good. It must have something to do with holding the ignition after turning the key off that it doesn't like. My sub tank pump is now run totally separate to it's original circuitry. Problem fixed. I really like the idea of having a timer on such an expensive motor!

Cheers..................Pete!

[Jimbo]

Why not just drive the car easy for the last 2km if you can? Or if you have just come off the freeway sit there for a whole 60 seconds.

[g@z]

Check with your insurance company. No point getting one if it voides your insurance.

If you are going to work the turbo, an EGT meter would be great. I'd be getting one of those before I got a Timer and then let it idle in the driveway to see how long it takes to cool down.... if you can call it cooling

Then based on the result of how long it takes to cool down, decide to get a TT or not.

If yes, then just drive it to TJM or ARB and spend the money once to have it fitted professionally.

Once fitted, the EGT meter will be able to tell you how long to leave it idle pre and post turbo mods.

Good luck.

Regards,
g@z.

[sierrajim]

We used to fit quite a few Bogard Turbo Timers (mostly sell petrol vehicles now so no great need for T Timers anymore). A neat unit with very little hassle.

The Chevrolet TDiesel did require for the auto to remain powered while the engine was running otherwise it caused a fair amount of grief. The guy who distributes/sells them was more than happy to do units specifically for the chev. You may find he has a unit specifically for the GU to combat the sub tank issue as well.

[tweak'e]

my 2cents worth...

i don't have auto's and i don't trust handbrakes as far as i can throw the cables (had a few let go on me before) so i find it better just to sit there for a few minutes and do other things around/on the vechile at the time ie fill in log books, other paperwork, sort out gear, unpack loads etc.

[spannercrab]

Turbo timers are not neccessary - especially on a diesel! And especially again if the core cartridge is water jacket cooled.

Diesel engines at moderate boost produce lower EGT's than their petrol counterparts.

The point of having a turbo timer is to allow cooldown and prevent the latent heat in the turbo catridge assembly, transferred via the turbine wheel / shaft (heat soak) from coking and carbonizing the remaining lubricating oil on the bearing assembly & causing damage.

According to Honeywell Turbine (Garrett):

Water-cooling of the turbocharger's center housing has essentially eliminated the need for turbo timers or extended idling periods.

Essentially the water continues to circulate through convection, even after shutdown, which continues to cool the turbocharger assembly even after the engine is switched off.

Although ... climbing a hill at full boost for 5 minutes and then shutting down may still not be such a great idea, as a general rule of thumb, I always let my EGT drop to around 150-200degC by idling before shutdown.

[The Conductor]

ARB Still produce and sell turbo timers!!!!!!

ARB do not produce them they are actually a boggard timer with the ARB logo on them.

[not not]

So with a non water cooled turbo a timer is a good idea then

[spannercrab]

A cool down period before shutdown is a good idea if you are not running a water cooled turbocharger. Also if you have been using the turbo in a sustained boost condition.

Turbo timers do 2 things:

1) alleviate heat soak by allowing the turbocharger to pass the latent heat present within the unit onto the oil, which allows the unit to cool and thus does not coke the bearings

2) allow the unit to spin down until stationary (or close enough to it) - loosing oil pressure with a turbo spinning at 150,000rpm is a BAD idea.

However, I do recall reading somewhere that the newer types of bearings (i.e. used for the last 20 or so years) used in the turbo prevent coking and do not suffer from heat soak issues as the older type of bearings did. Unfortunately I have absolutely no idea where I read it!

Having said this of course, bear in mind that a diesel turbocharger is not subject to the same heat loads as it's petrol counterparts and therefore is less likely to suffer from coking problems.

There is some debate as to whether cooldowns are neccessary or not. Garrett's official answer is:

The need for a turbo timer depends on how hard the turbo and engine is used.

From my point of view - a cooldown period certainly won't do any damage, but the turbo timer argument is something different altogether, especially when you consider all the problems that they can introduce, just for the sake of 30 seconds cooldown (under normal driving conditions).