Water Cooled Turbos?

[DanH]

It was mentioned on the US forum that whilst the GTO3/3R turbos have the facilities to be watercooled, they aren't actually wired up to do this? Is this accurate?

Apparently they are plumbed in on the m400?

[kj-r]

Can't speak for US models but all UK GTO3/3R models have water cooled turbo's and they are connected.
I'm sure US ones will be the same as the water cooling is essential.

Kevin

[LaurenceFrost]

You can see the connection on UK cars.
There are two pipes that go in to each turbo. One is oil and the other is coolant.

Follow the pipes back to see which is which. I can't think why the US cars would not run water cooling as well!

Water cooling is pretty essential no matter which country you are in. It brings the required cool-down period before switching off from 5 minutes (oil) down to around 30 seconds (oil + coolant).

Many people with turbo's are clueless about this cool-down period though, which is probably what led to water cooling in the first place.

[DanH]

It may be because they use a different engine supplier in the US. Glad we've got it plumbed in as that type of omission would have really annoyed me!

[paulcundy]

Sorry, does this mean "Classic" 2.5 GTO cars do not have water cooled turbos?
Regards
Paul C

[LaurenceFrost]

paulcundy said:

Sorry, does this mean "Classic" 2.5 GTO cars do not have water cooled turbos?

What I meant by this...

LaurenceFrost said:

Many people with turbo's are clueless about this cool-down period though, which is probably what led to water cooling in the first place.

...was for cars in general. I think it was only in the '80s when water cooling was NOT always used.

I'd be amazed if the 2.5 litre wasn't water cooled.

[V6GTO]

I had a Renault 5 GT Turbo( ) and it had a motor that kept the oil circulating around for 30 seconds or a minute after the engine was turned off. It packed up and a week later I was looking for a new engine.

Martin.

>> Edited by V6GTO on Sunday 20th February 10:33

[paulcundy]

paulcundy said:

Sorry, does this mean "Classic" 2.5 GTO cars do not have water cooled turbos? Regards Paul C

Where's Micknall, we need an answer.
Regards
Paul C

[ThatPhilBrettGuy]

paulcundy said:

Where's Micknall, we need an answer. Regards Paul C

I'm sure Sir Trevor of Roushland would know as well. It's too blooming cold for me to check out my 3R's.

[matt_t16]

All,

The 2.5 has water cooled turbos, as do the 3 litre cars. AFAIK a few US built engines have been built without a coolant supply to the bearing housings though.

Regards
Matt

[JLSELAN]

matt_t16 said:

All, The 2.5 has water cooled turbos, as do the 3 litre cars. AFAIK a few US built engines have been built without a coolant supply to the bearing housings though. Regards Matt

Not stictly true since oil is an excellent coolent, especially when the housing temperature is 1000 degrees F or more, and oil is supplied in copious quantities to the turbo bearing.

[matt_t16]

JLSELAN said:

matt_t16 said: All, The 2.5 has water cooled turbos, as do the 3 litre cars. AFAIK a few US built engines have been built without a coolant supply to the bearing housings though. Regards Matt Not stictly true since oil is an excellent coolent, especially when the housing temperature is 1000 degrees F or more, and oil is supplied in copious quantities to the turbo bearing.

Coolant being engine coolant as opposed to lubricant. For all intense and purposes water cooling the bearing housing is primarily to stop oil carbonising on the bearings if the engine is stopped whilst the turbos are hot, its entirely possible to reliably run turbo chargers with only an oil supply providing sufficient idle time is allowed before shutting off the engine. Back on topic though, 2.5 litre cars have water cooled bearing housings

Matt

[micknall]

All Nobles, 2.5- and 3.0-litre models, have an oil supply for lubrication, and a water supply for cooling.

Hope that answers your question.

Simon Hucknall
Press Officer
Noble Automotive Ltd.

[elisek]

On 2.5 you don't need water injection.

we have fitted on the M400 with a huge intercooler.

we never used in Italy the water injection because the intercooler was ennough also at MONZA after many laps.

[LaurenceFrost]

elisek said:

On 2.5 you don't need water injection. we have fitted on the M400 with a huge intercooler. we never used in Italy the water injection because the intercooler was ennough also at MONZA after many laps.

Water injection is something different!

We are talking about the way the turbos themselves are kept cool, not the air that comes from them.

[paulcundy]

elisek said:

we never used in Italy the water injection because the intercooler was ennough also at MONZA after many laps.

with it plumbed that way its surprising it made one lap! :-)

[elisek]

paulcundy said:

elisek said: we never used in Italy the water injection because the intercooler was ennough also at MONZA after many laps. with it plumbed that way its surprising it made one lap! :-)

not necessary!
MONZA is faster than any UK circuit and also the most hard for any car, especially for engine, brakes and tyres!

the only change necessary at any NOBLE is the intercooler.

THAT's IT!

[LaurenceFrost]

Paul your humour is wasted here . LOL

[caccobra]

micknall said:

All Nobles, 2.5- and 3.0-litre models, have an oil supply for lubrication, and a water supply for cooling. Hope that answers your question. Simon Hucknall Press Officer Noble Automotive Ltd.

Simon,

Apparently that is not the case in the US. The turbos on 3R's are hooked up for oil supply and are designed for water cooling (same unit as used in the UK), but water cooling is not being utilized in the US. Any idea why not?

Thanks.

Craig

[elisek]

LaurenceFrost said:

elisek said: On 2.5 you don't need water injection. we have fitted on the M400 with a huge intercooler. we never used in Italy the water injection because the intercooler was ennough also at MONZA after many laps. Water injection is something different! We are talking about the way the turbos themselves are kept cool, not the air that comes from them.

rotate teh engine!!!!