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Things are getting hot
Posted 11 June 2006 - 01:35 PM
First, info about the car: its an 86 XT Turbo with an SPFI block running stock boost. I live in Golden, which about 6500 feet above sea level.
Phil (KBD) said ever since Roni owned it, the car seem to run about 210-220 degrees. This seems to be above what everyone else's EA82T runs at (http://ultimatesubaru.org/forum/showthread.php?t=58997). Phil said not to run the car above 230.
Well, I noticed the car runs fine in the city. Stays right where Phil said it did, 210-220. On the highway is a different story. It climbs up to 230 quickly, and will climb above 235 unless I slow down. Now, I make frequent trips to and from Denver and staying off the highway is not a viable option.
Any suggestions to cool things down a bit?
- Obviously, an intercooler. That's my next project as soon as I figure out what to do with plumbing it.
- What about my radiator? How can I tell if its a two row or not? Obviously, if its a single row, a two row would help.
- Could this be caused by a stuck thermostat? Seems to me if the thermostat was stuck, things would get MUCH warmer.
- Think an oil cooler would help? Never installed one of those. What's involved?
What kinda suggestions do you guys have?
Posted 11 June 2006 - 02:39 PM
Posted 12 June 2006 - 12:07 AM
How do I tell if the radiator I have is a two row or one row?
Posted 12 June 2006 - 12:36 AM
When i installed an intercooler on my RX, i noticed a huge difference in my engine temps. I recommend the Saab 900 Intercooler as the inlet & outlet are 2.38" which is the same diametere as your intake manifold.
If you need some plumbing idea's, just check out my gallery here:
Posted 12 June 2006 - 12:41 AM
you can get radiator flush solution too. Permatex makes one that comes in a gold can (i think) that is really super stuff.. you empty your radiator and block, add this with a full load of water, run it for a few minutes, and drain and flush again. that helps eliminate partial clogs and obstructions in water channels throughout the whole motor. i am NOT a subbie wizard, so if anyone on this message board says anything against a particular flush solution, listen to them.. some of those products are rather potent chemicals.
installing an oil cooler is a simple procedure.. ideally, there is a small adapter you screw onto the oil filter, and it taps the oil off into one hose, to an oil cooler, then back through another hose into the filter... or vice versa.. then you just mount the cooler somewhere. its never a bad idea to do, but change your thermostat and flush the radiator first. you can also have pros flush the coolant system, which is really the best way to clear out the block.
Posted 12 June 2006 - 05:50 AM
Your first post describes the classic symptoms of a rad gone south while the car stayed north
This has been shown to be an external problem, not an internal,
thus no flushing or such will help.
The problem manifests itself in the fins between the cooling tubes
delaminating from the tubes.
The coolant flows by and very little
heat is removed.
Hard to see this as it is behind the rad fan shroud
Solution - new rad
Oil cooler and IC are good ideas that could be installed at the same time.
Posted 12 June 2006 - 07:20 AM
Posted 12 June 2006 - 08:35 AM
That's cuz I don't know how old it is. I suppose I'll replace it with a brand new one.
No mention of the rad's age.
Next question, do XTs use the same radiators as the DL/GLs? Found a good deal on a radiator, says its for just about everything, but no mention of XT.
Posted 12 June 2006 - 11:16 AM
EDIT: If you want to drop by and see if they are the same, or even try my extra radiator (think it is still good, just has alot of mashed fins that could be straightened) I have a few sitting in my shed.
Posted 12 June 2006 - 12:24 PM
Core Dimensions: 26 3/8 x 12 1/2
All Other EA82s:
Core Dimensions: 25 3/8 x 12 11/16
Seems XTs are just a bit longer width, and shorter height than other EA82s.
Hm. Doesn't seem to be that much of a difference though. I can't seem to find any two rows at all for XTs. I thought these things were two row stock.
Edit: RadiatorExpress has a two row for the XT for ~ $151.75. That's actually around the same price as everyone else. I may just go ahead and buy that.
Thanks for the offer DrKrazy on trying one of yours. I think I'll just buy the brand new one from radiator express that says it has the same dimensions.
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