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The mkiv Supra Owners Club

Coolant bypass hose for oil-cooler delete


Scott

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Use an N/A water pipe instead of a TT one. It just runs up the turbo side of the engine. This will iliminate 1 side. The pipe coming out of the block just screws out. I took it out cut the pipe off, welded the hole in the centre of the nut and replaced it. There's detailed pics in my project thread somewhere.

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Use an N/A water pipe instead of a TT one. It just runs up the turbo side of the engine. This will iliminate 1 side. The pipe coming out of the block just screws out. I took it out cut the pipe off, welded the hole in the centre of the nut and replaced it. There's detailed pics in my project thread somewhere.

 

Will that not reduce the flow around the head though? No disadvantage by deleting the feed at that side?

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Not at all. Due to the bleeding issues supras have I wanted to remove every unwanted waterline. It's worked very well for me so far. I also cut off and welded up the water pipe on the side of the head. The only flow you need really is from pump, around the engine and through the rad. Reducing the amount of pipes the coolant has to flow through can only be a good think IMO.

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Scott,

 

Chris Wilson told me to cap both ends of the remaining pipework as running a hose between the two reduces the efficiency of the radiator due to the lack of a restriction in that circuit once the cooler is deleted.

 

But he also told me to attack my sandwich plate with a grinder to improve oil flow, just so you are aware of Chris' attention to the little details that most of us wouldn't even notice!

Edited by pedrosixfour (see edit history)
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Scott,

 

Chris Wilson told me to cap both ends of the remaining pipework as running a hose between the two reduces the efficiency of the radiator.

 

But he also told me to attack my sandwich plate with a grinder to improve oil flow, just so you are aware of Chris' attention to the little details that most of us wouldn't even notice!

 

Magic, that backs up Johns opinion on it all :)

 

Just to be sure, he was definitely referring to the oil cooler and not to the heater matrix? :D

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Magic. I'm just going to totally chop my current pipe. No matter what one I go for I'm going to have to fab it so I'll just go with the one I have :D

 

I'm removing the manifold coolant lines too, will there be any downfall with that?

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I can't really see it being an issue to be honest. He maybe recommended the other way to save having to find a hose that fits :D

ahh probably right scott, i already had the hose and put the pic up above just asking if it was ok.

The builds coming along nicely, im keeping a close eye on it for updates:eyebrows:

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Scott I'm doing the same on my engine build. I have the extended stud needed to remove the stock oil cooler and was slowly thinking about all the old cooling pipe work around the engine.

 

I will have a look at Hodges build but can I ask you detail this in depth on your build thread so that I can copy you :)

Will save me a right headache.

 

With regards to the thermostatic oil plate someone mentioned a "grinder"? What's one of these?

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You don't need an extended bolt. Remove the whole thing and fit an N/A filter housing without the cooler. Either that or remove the cooler and filter housing all together as I have now done and bolted the sandwich plate direct to the block. I used a whiffbitz adaptor threaded bolt for this. Was only 12 quid delivered

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As above, I'm using the whifbitz adapter bolt also.

 

Yeah I can detail it in the build mate. THere won't really be a lot of details though, I'm just gonna take the coolant pipe off and chop it in half, then have the hole welded up.

 

Sophistication is my middle name :D

 

The one issue you may find is that I'm taking the head off. I don't think there is any easy way to get that pipe out without doing that. I'll have a look and see if I can shuffle it up the back of the head though.

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The head doesn't need to come off to remove the water pipe. Just take the water lines off to the matrix undo the nuts on the back of the pump and 2 10mm bolts under the intake that hold the pipe to the block and slide it over the head. Simples :-)

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