Thank you , Scott,
Most of subygon in Thailand installed with simple reversed water manifold , but instead of heater circuit , we replace with LPG 's heat exchanger.
Many people here already replace new rad core. Better but problem still exist , warm coolant but very hot oil.
Google researching about adding external oil cooling ( oil to air exchanger ) tell me that it can reduce only a few degree , which might not worth its cost.
However , I ll try to run on pure gasoline and shutting off the heater 's circuit to see any difference.
I will report soon
Happy Thai 's new year ( SongKran Splash Festival )
Sent from iPhone
toggle quoted message
Show quoted text
On 13 ??.?. 2555, at 4:04, Scott Daniel - Turbovans <ScottDaniel@...> wrote:
Hi
for whatever it's worth..
I don't think any amount of oil cooler will make much of a difference in
EJ35 coolant cooling.
Some factors ...
one, if the radiator is pretty old ..it's due. The only failure mode I
ever see in these radiators is they just fail to remove heat well
eventually.
( or course there are tricks like other radiators that are bigger,
have more rows of tubes and fins etc. )
Make *sure* the cooling system layout is correct. I use a minor
variation of the basic Kennedy ( KEP ) system..works just fine for me on
every conversion.
Make sure the coolant is going through the radiator the correct direction !
Sometimes, to increase initial circulation I will drill a small hole on
the edge of the thermostat. That doesn't really improve cooling on the
hot end of things of course.
Don't run a really hot thermostat of course.
And use Water Wetter ..
it actually works...and is standard in all Vanagon work that I do
.........especially in the warm months.
Scott
www.turbovans.com
On 4/12/2012 4:21 AM, Hanniboon Boon wrote:
Thanks guy,
I just wonder that why many of my friend's suby having overheat and
head problems in this very hot tropical weather. Adding some oil
cooler may necessary.
Sent from iPhone
On 12 ??.?. 2555, at 9:21, "a914622" <a914622@...
<mailto:a914622%40yahoo.com>> wrote:
I have used the thermal plate out of a Volvo 740 turbo and plumed
the external oil cooler. The thermal plate bolts up were the stock
subaru water/oil cooler sits. It opens at 95c and cools the oil. There
were early subaru turbos that used the water/oil cooler, the problem
is they dont work quick enough to cool the oil under boost or in your
case under load.
There are some thermal plate being marketed at the wrx crowd. do a
google search.
The svx i have didnt have anything but the filter,but its getting an
external cooler.
jcl
--- In subaruvanagon@...
<mailto:subaruvanagon%40yahoogroups.com>, Hanniboon Boon
<hanniboon@...> wrote:
Hi,
We live in Thailand and there are many of us , T3 EJ25 , have the
same problem - the engine's head and overheating.
That make me wonder that the heat exchanger ( oil cooler ) was too
small.
I installed the oil-temp-guage to my 95' EJ25 n/a and I ve seen
that oil temp went above 110C ( 230F ) but the VW 's water temp
display so low , under the led. This always happen when drive in high
speed , 4000+ rpm.
This water temp gauge fools the driver that the engine still fine
, but it is not.
So I wonder that maybe subaru use the same size of oil cooler
inside both 22 and 25 n/a. And the bigger one in newer engine.
Sent from iPhone
On 3 ¨¤?€¨¤??.¨¤??. 2555, at 21:17, Brent Weide <brent.weide@...> wrote:
Hanniboon:
You are talking about the oil cooler that spins into the spot
between
the oil filter and engine case, yes?
Not too many of the USDM engines have the coolers that I've worked
with. I installed a Forester (2004) that had the oil cooler which I
removed because I couldn't easily find a way to plumb the coolant
lines without interfering with the smallcar engine carrier.
The oil coolers for impreza 2.5's that i've seen have been
around 77mm
in diameter by 42mm in depth. Not sure about svx's or ej22's.
all the best,
Brent
--
Brent Weide
Portland, Oregon
www.weidefamily.net/vanagon/
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
