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Old 03-03-17, 08:07   #1
Costaki
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Join Date: 20-07-06
Location: Melbourne, Northern Suburbs
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Vl turbo overheating issue

Hi guys just want to know if anyone has had a similar issue?
This has been an ongoing issue for the past year and still can't put my finger around it...
Car keeps heating up after driving it for 5 minutes temps rise to 93 degrees and keep climbing as I keep driving... I can leave the car idling for an hour and won't over heat it's only once I start driving it..
The car use to make 247kw never over heated.
Car now makes 311kw and constantly over heats

Have changed the following
New radiator 3core
Spal thermo fan
New thermostat (genuine)
New head gasket
New water pump
New hoses
New rad cap
New overflow

Only thing different thing is since got it tuned is bigger can and bigger rear housing. Motor is rebuilt, just put a new head on it last week and still same issue. Fuel mixtures and timing are also good..

Cheers
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Old 03-03-17, 09:20   #2
deeno
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Might seem like nothing but is there a heat shield around the exhaust manifold or if not maybe some of that insulation wrapping? Just trying to cover anything and everything I guess.

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Old 03-03-17, 10:10   #3
Costaki
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Quote:
Originally Posted by deeno View Post
Might seem like nothing but is there a heat shield around the exhaust manifold or if not maybe some of that insulation wrapping? Just trying to cover anything and everything I guess.

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Hey bud thanks for the reply
Na no heat shield it's a high mount manifold been HPC and heat wrap on dump which has been on for years.
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Old 03-03-17, 13:43   #4
Sammyvl
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I had a similar problem. Drove the car for almost 5mins and it over heated, But my car was stock turbo. I put in a new thermostat and it was faulty. Had to Change it twice for it to not over heat.

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Old 03-03-17, 13:46   #5
Costaki
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Quote:
Originally Posted by Sammyvl View Post
I had a similar problem. Drove the car for almost 5mins and it over heated, But my car was stock turbo. I put in a new thermostat and it was faulty. Had to Change it twice for it to not over heat.

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I've tried new thermostat and also running it without one and still same issue lol it has got me puzzled that's for sure!
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Old 03-03-17, 14:19   #6
Sammyvl
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Originally Posted by Costaki View Post
I've tried new thermostat and also running it without one and still same issue lol it has got me puzzled that's for sure!
Damn. Sorry can't help you more. Hope you get it sorted out soon.

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Old 03-03-17, 18:06   #7
vltnitron
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what brand radiator? alloy or copper.
have you tried putting on the factory shroud and clutch fan set up?
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Old 03-03-17, 21:33   #8
Costaki
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Originally Posted by vltnitron View Post
what brand radiator? alloy or copper.
have you tried putting on the factory shroud and clutch fan set up?
It's a radiator from bundoora rads factory 3 core copper, my next option is running a clutch fan and shroud but need to trim the blades as I have a forward facing plenum with no hole cooler kit.
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Old 03-03-17, 22:38   #9
deeno
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Maybe a stupid question but do you have an aftermarket temp sensor? If so where's it located ? Could it just be the sensor misreading?

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Old 03-03-17, 22:44   #10
Costaki
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Quote:
Originally Posted by deeno View Post
Maybe a stupid question but do you have an aftermarket temp sensor? If so where's it located ? Could it just be the sensor misreading?

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Na it's a factory temp sensor located in same spot, Ecu and temp gauge read same degrees...
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