Turbo coolant lines

Discuss topics related to the CA18DE and CA18DET series engines.
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Spectre_240sx
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There's information scattered here and there about the coolant lines for the turbo, but I can't find anything concrete or comprehensive. So, I'd like to hear what different people did as far as their coolant lines go. Did you plug them up? If so, why and what was the process for doing so? If not, why and what lines did you use (my stockers are bent, so I'm probably looking into Russel Performance replacements if I run the lines). I'm hoping this could be an informative thread, not just for me, but for everyone.

Thanks in advance for your input.Brian


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GotBoost4Yall
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I'm running steel braided lines, its worth it.

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Spectre_240sx
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Could you elaborate on that a bit though? Did you make the lines yourself or have a shop do it?

Doogz
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You can't really just plug them can you? Wouldn't you have to still connect them but just bypass the turbo? That is what i was planning on doing but if it is ok to just plug them then that would be nice too.

nocwage
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Umm..You do realize how hot turbos get right?I can't imagine not running the coolant to the turbo being a very good idea.If you're doing that then you better be installing an oil cooler.

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GotBoost4Yall
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No I actually bought a t28 that came with steel braided lines but they do sell the steel braided lines,I don't remember the site name but trust me this will save cuts and bruises, and stress. Think that set is about $115. I am running the stock oil feed line since I didn't have a fitting to the block for. Technically you can bypass cooling lines but you will need to Set the turbo timer to run longer. I still don't see what the benefit is by eliminating them????

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Spectre_240sx
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I've heard different opinions on it, one of them having something to do with temperature differences causing coked up oil, which is never a pretty sight. Now I don't know how much truth there is to that, but I know I've heard of a lot of people bypassing the turbo, so I wanted to see if I could get both sides of the story compiled into one thread.

Doogz
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nocwage wrote:Umm..You do realize how hot turbos get right?I can't imagine not running the coolant to the turbo being a very good idea.If you're doing that then you better be installing an oil cooler.
My new turbo does not have any coolant lines on it. just the 2 oil ones. I was just going to go with the turbo timer but do you think i'd need the oil cooler too?

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Spectre_240sx
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Would these lines be likely to fit the our application?http://www.store.yahoo.com/phase2motors ... 8tuli.html

I know there a bit expensive, but it might be possible to just get the lines and fittings separately and make them from scratch. I'd imagine that it would be cheaper that way. I could be wrong though.

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GotBoost4Yall
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those should work, although it doesn't say if it comes with the banjo fittings.

Is there anyone on here running an oil cooler if so how is it setup??

nocwage
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Doogz wrote:
My new turbo does not have any coolant lines on it. just the 2 oil ones. I was just going to go with the turbo timer but do you think i'd need the oil cooler too?
That's a little different. If the turbo was designed WITH coolant lines then it's designed to use that to cool it.If the turbo doesn't have them then it's designed to be "cooled" by the oil.There are internal differences between a water cooled and an oil cooled turbo.

If you plan on running heavy boost OR you abuse your car a lot then you'll save yourself in the long run by having an oil cooler.I hate to bring up a video game but if you've played Tokyo Xtreme racer 3 you'll actually learn a little about how all that works, oil is a thick liquid and it has a high heat capacitance compared to water.. that's why you can use it to deepfry stuff since you can go beyond 100C without oil boiling, problem is it's SLOW to bleed away heat and most cars aren't designed to cool oil directly, it's usually cooled indirectly by the regular coolant in the engine cooling the entire engine. So what does that mean? Say you are beating your car and you run the heat up, both the oil AND the water is getting HOT, problem is when you see it "cool off" or you are just driving sanely for a bit while the water temp drops the oil is still as hot as it was 20 minutes ago..Unlike most of the other racing games TXR3 actually takes that into account and you can be running a nice cool water temp but oil around 110C and blowing up your motor..

This problem is increased by thicker oil, so 20w50 will hold it's heat "better" than say 5w30.

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Spectre_240sx
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Looks like they're straight fittings rather than banjos. I can't see a problem with that as long as they fit though. If the thread is the same as the banjo nut won't they be alright?

Trppen37
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I got a t28 bypassed it and so far running very good....also I live in north dakota and its kinda chilly here

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GotBoost4Yall
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Im not sure about the straight fittings when it comes time to tighten them down, might be a b*tch??

Where are you located, if you're interested I can send you the 2 stock cooling lines, one is perfect ,the other still flows good despite a very small bend.

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Spectre_240sx
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I'm in maine, how much would you want for them?

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GotBoost4Yall
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like $20 -inlcluding shipping

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Spectre_240sx
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Hmm, I think I can do that. How do you want to arrange the payment? My email is [email protected]. Thanks for helping me out with this.

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Nunook
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Its good that you are gonna get some lines, but i would like to know if the lines work or not. I emailed the ppl, hopefully they say yes. I need to change my water line also.

Projex240
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Could you use the taka lines that are SS? I want to use the s15 turbo on the CA, so i should order the s15 turbo lines form them I assume?

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GotBoost4Yall
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the t28 i bought came with the braided steel lines already, not too long ago the seals went on the t28 and i bolted these lines on a rebuilt sr t25 with no problems. Very easy to work with and not worry about bending a line.What some people do is split the stock cooling lines and run I guess some fuel hose so its easy to work with. With this I would make sure its wrapped or good spacing,kept away from too much heat.


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