ernst82 Posted February 20, 2011 Share Posted February 20, 2011 How is the turbo on a 86 xt cooled? Link to comment Share on other sites More sharing options...
MilesFox Posted February 20, 2011 Share Posted February 20, 2011 water cooled and oil cooled. water is piped off the driver side head under the motor to the turbo, and returns to the thermostat running under the intake. The oil is supplied off the back of the passenger head, and returns to a dump tube at the back of the head Link to comment Share on other sites More sharing options...
NorthWet Posted February 20, 2011 Share Posted February 20, 2011 The water cooling is just "sort of cooling". There really isn't much provision to flow coolant while the engine is running. AFAIK, the larger purpose of the water is to provide water jacketing of the center-section after shutdown, with a certain amount of thermo-siphon flow occurring. Link to comment Share on other sites More sharing options...
MilesFox Posted February 20, 2011 Share Posted February 20, 2011 I have had the idea of using a spare heater core to help cool the water before or after the turbo. Link to comment Share on other sites More sharing options...
NorthWet Posted February 20, 2011 Share Posted February 20, 2011 I have had the idea of using a spare heater core to help cool the water before or after the turbo. I think that you would need to carefully design a cooler so that you didn't disrupt the thermo-siphon after shutdown. Or, just add a pump that runs after shutdown. I have had several turbo-to-tstat hoses crumble due to the heat. Link to comment Share on other sites More sharing options...
ernst82 Posted February 21, 2011 Author Share Posted February 21, 2011 how would i go about getting a intercooler setup? Link to comment Share on other sites More sharing options...
NorthWet Posted February 21, 2011 Share Posted February 21, 2011 First, you should decide what type of intercooler you want, whether it is front-mount, top-mount or possibly even side-mount (apparently popular in other makes of car). If not a front-mount, do you want an air-to-air or air-to-water unit. You could get a unit that was originally on a subaru or some other make. You will probably need to do most of the plumbing (hoses) yourself, unless you buy somebody else's setup. Lots of possibilities. Try searching for intercooler in the old-gen forum and/or "parts for sale" to get an idea what is generally available and what fit your needs. Link to comment Share on other sites More sharing options...
Sonicfrog Posted February 22, 2011 Share Posted February 22, 2011 When I put Murphy, the 87 Turbo Wagon back together (blown head gasket of course) I'm going to finally throw the intercooler on that I've had laying around for over a year. It is a behind-the-wheel IC from a VW Corrado. Very big. and should provide ample air cooling. I'm planning to mount it where the spare was.The spare disintegrated a long time ago and foolish me, I never replaced it. I'm planning on venting using the hood vents from a Datsun 280Z. Link to comment Share on other sites More sharing options...
ernst82 Posted February 22, 2011 Author Share Posted February 22, 2011 I want to do a front mount intercooler Link to comment Share on other sites More sharing options...
NorthWet Posted February 22, 2011 Share Posted February 22, 2011 Find a FMIC that you like, look at where it could be mounted, go back and find one that might fit and you kind of like. Hope that it fits in a semi-legal and non-RroadWarrior fashion, try to figure out how to get the hoses to and from it, pay through the nose for the silicone hoses that you will likely need. Once that you have it put together, wait for the boost to build. Hold on, its coming... and probably be disappointed by the performance after the lag has finally ended. I don't think that too many people go this route because it is less practical than other ways. What might be practical for a fire-breathing stoplight racer might not be for a moderately powered (being a little generous here) economy engine with a small turbo producing low boost pressures. Others might be more encouraging, but the first couple of steps that I listed (prior to that lag stuff) will probably still occur. I think that FMIC are a tough fit on these cars, but hen, I might just not be creative enough. Link to comment Share on other sites More sharing options...
ernst82 Posted February 23, 2011 Author Share Posted February 23, 2011 yeah i see what you are saying, not much air flow from the front anyway, I do have the stock top mount from my 2010 wrx that i am not using, I might see if that can be of any use. Link to comment Share on other sites More sharing options...
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