I recently installed a T3/T4 Precision SC50 w/ 48 trim turbo on a 95 GSR engine (JDM). The turbo does have a water jacket.

Here is the question. I have never seen anyone recommend this method of running the coolant lines. I removed the coolant bleeder plug in the front passenger side of the engine. I drilled and tapped this for a larger fitting and am using this as the supply for the coolant. The coolant return goes back to the bottom of the radiator (CR Radiator) where the drain plug used to be. Does this provide the pressure differential to force the coolant to flow? Or is the coolant standing still in this set up?

Thanks in advance.
See Pics Below

Feed from engine to turbo:




Return from Turbo to radiator:



Modified by Geauxkart at 10:20 AM 9/5/2005


Modified by Geauxkart at 10:23 AM 9/5/2005


Modified by Geauxkart at 11:59 AM 9/6/2005

 

ttt

 

ttt

 

Would love to know that too. Sounds like a beter route to take, if possible. That way it wont break down the oil as fast.

 

i've never seen a precision sc50 that can be water cooled..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by igo4bmx &raquo;</TD></TR><TR><TD CLASS="quote">i've never seen a precision sc50 that can be water cooled..</TD></TR></TABLE>

any turbo can be water cooled, given that a chra is available that will still fit the back plate, etc

 

Definitely SC50 water cooled. I'll try to get pics up in the morning. It looks really clean - just not sure if it's doing its job right.

 

Anybody? Please!

 

yah but saee that is tapped on the return hose, given the turbo is still probably much hotter and will stil transfer some heat to the water, but if possible i would try and tap it from one of the line coming from the radiator exit because the collant there would be the coldest.

 

Why aren't you using the coolant line from the throttle body?

 

Shorter lines, cleaner install.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Geauxkart &raquo;</TD></TR><TR><TD CLASS="quote">Shorter lines, cleaner install. </TD></TR></TABLE>

I totally agree with that. I just thought maybe you didn't think of the throttle body lines. My opinion on your question is that I think the one from the bleeder plug will probably work. When bleeding the coolant system you can see that their is pressure from this plug.

 

i wouldn't think it would flow until the thermostat opened. just a guess.

 

Thanks for the suggestions, I appreciate it. (Really, not trying to be a smart ***) ANYONE actually know if this works????

Up dog got more responses!

 

I don't believe you are going to have any flow at all until the t-stat opens.

You would have to plumb the return line beyond the thermostat to make it work.

Now that you got me thinking about it, I don't know if there would be much consequence to having no flow there until the tstat opens.

Ok..last edit..I would also consider the function of the plumbing after the engine is turned off, there should be a clear path of flow by convection to cool the turbo, but your setup should be ok for that because the tstat will stay open for a while after the engine is off.

 

im not entirely sure i understand what you have done, but i think you are saying that you tapped the coolant lines at the supply to the engine and return to the radiator. if this is the case the hot coolant will be pumped from the return line through the turbo and back into the supply to the engine after it has been heated more. i dont think the effects will be adverse, because the flow through the turbo will be significantly less than through the radiator. But it kind of sucks that you are sucking in the hot coolant to cool off the turbo.

 

If you are bypassing your TB waterline you could have used the line that is on the back of the water neck.

 

Looks like a good way to do it to me. If you want to test for pressure, just remove the water line, cap it, and run the car, then crack the cap after a bit. It'll be pressurized just fine, I bet.