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Location:
South Australia
Registered:
July 2002
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Re: 3sgte question
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Mon, 01 August 2005 14:06
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| Quote: |
the coolant running through your WTA is completely independant of the turbo. As I own a gen 2 3SGTE the twin entry CT26 on my engine IS water cooled, yours may or may not be im not sure about the single entry models, but if it does that coolant path is part of your overall cooling system in your motor, the IC is not. It runs its own sealed system.
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Water to air is efficiebnt but youll find it near impossible to find one of the larger 185 or 205 cores , and well if you use top mounted 185 cooler your going to have to hack up your bonnet - and it will Still suffer from the normal heatsoak issues the 185's have
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The CT26 on the ST165 engine runs a water feed. Also, although the IC runs it's own water system, it's not 'independent' of the engines - they both rely on the same thing to absorb heat - air flow (and to an extent, radiation/diffusion).
Lets say you stick the air-air intercooler onto the ST165 (note : the cam covers are different on the first gen 3S-GTEs compared to the later gens not sure if that will be a problem) you will have to modify the bonnet to improve the air flow to the intercooler (allowing it to work for one thing) - with a bit of design and engineering you could easily improve the air flow to the radiator (as the factory heat exchanger would no longer be in the way) and without all the water pump and wiring etc you would probably save a bit of weight (and reducing the number parts generally increases reliability). To be honest, I'd say it'd be at *least* a reliability improvement, and maybe a slight performance improvement as the engines over-all ability to stay cool would be improved.
Sure the ST185 and ST205 water-air cores are bigger, but the ST165 core is actually fairly decent (although small) except in cases where the turbo has either been upgraded or heavily modified - it is perfectly fine - unfortunately I don't have any air flow or pressure drop stats on hand  Either way the weak link is the heat exchanger, it's just far too small on the ST165, due to the bad heat exchanger design and poor air flow there seems to be a 'myth' that the ST165 water-air system is worthless.
As for the heatsoak - well it's a bit of a problem on ST165s as well! The water pump shuts down after several seconds when standing still and hence the heat exchanger and the core tends to heatsoak. Running the water-pump constantly is one option (but will reduce its life-span) the other option is to attach a fan over the heat exchanger but I have no idea how good a result that will give (the core will probably still heat-soak)
[Updated on: Tue, 02 August 2005 02:39]
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| | Subject | Poster | Date |
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3sgte question
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Jorrs | Mon, 01 August 2005 09:09 |
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Re: 3sgte question
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SilverGhost | Mon, 01 August 2005 09:17 |
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Re: 3sgte question
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Jorrs | Mon, 01 August 2005 09:20 |
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Re: 3sgte question
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SilverGhost | Mon, 01 August 2005 09:24 |
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Re: 3sgte question
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Jorrs | Mon, 01 August 2005 09:34 |
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Re: 3sgte question
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SilverGhost | Mon, 01 August 2005 09:38 |
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Re: 3sgte question
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Classique71 | Mon, 01 August 2005 09:39 |
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Re: 3sgte question
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Jorrs | Mon, 01 August 2005 09:41 |
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Re: 3sgte question
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RWDboy | Mon, 01 August 2005 14:06 |
