Coolant lines on PT6776BB

[gergwheel]

Here's mine, I ran the hard coolant line under the turbo instead of over

Question on your setup. I know alot of guys use the heater lines. But isn't that going to put hot coolant through your turbo? wouldn't it be better to get the coolant somewhere else, when it is cold?

 

[conn84gn]

Coolant comes from the pump to the heater lines
Where else you gonna get it from?

 

[gergwheel]

I don't know that is why I am asking. Lower radiator hose perhaps? or is there not enough pressure there to push the coolant through the lines?

 

[KWIKR 1]

I don't know that is why I am asking. Lower radiator hose perhaps? or is there not enough pressure there to push the coolant through the lines?

pressure is the same thru out system . outlet temp from rad remains consistant as the inlet temp . no were else to find a lower temp source of supply for cooling the turbo . The heater core hardline is basicly plumbed into the system very close to either the inlet or outlet flow from the engine . The way I plumbed it was, I just eliminated the heater core by removeing the hard line and hooked up my inlet and supply to the turbo in the same spots (manifold/pump) used by the hard line . from what I understand your asking , the only way to get a colder temp source would have to be from something other than the rad cooling system . somekind of external stand alone setup I suppose .

 

[BadAssGN]

pressure is the same thru out system . outlet temp from rad remains consistant as the inlet temp . no were else to find a lower temp source of supply for cooling the turbo . The heater core hardline is basicly plumbed into the system very close to either the inlet or outlet flow from the engine . The way I plumbed it was, I just eliminated the heater core by removeing the hard line and hooked up my inlet and supply to the turbo in the same spots (manifold/pump) used by the hard line . from what I understand your asking , the only way to get a colder temp source would have to be from something other than the rad cooling system . somekind of external stand alone setup I suppose .

Keeping that Turbo at operating temp is no problem with coolant and oil both
acting to keep temps down.

Looks great Tim, That turbo will be cool as a frog in a pool


p.s. I'll not be racing against this car of yours. you know what they say about the big dogs... if you need me I'll be on the porch :biggrin:

 

[KWIKR 1]

Keeping that Turbo at operating temp is no problem with coolant and oil both
acting to keep temps down.

Looks great Tim, That turbo will be cool as a frog in a pool


p.s. I'll not be racing against this car of yours. you know what they say about the big dogs... if you need me I'll be on the porch :biggrin:

yeah.... I think the same I have no concerns about it ..

 

[gergwheel]

Ok cool, I know everyone seems to be doing it this way, and if there was a problem with it I am sure we would have heard about it by now anyways. Thanks for the info though guys.

 

[2toneNV]

Conn84gn, where are your oil and cooling lines from for the turbo?

 

[conn84gn]

Oil line comes from the remote oil filter mounted under the pass side head light.
Water lines hook to the hard heater lines that use to feed the throttle body

 

[2toneNV]

did you make the lines yourself or did you buy them already done and install them? If u made them what did you use as far as fittings? Is that heater hose?

 

[conn84gn]

Bought the water coolant setup from Cotton's and the remote oil filter setup.
If I did it again I would make up my own coolant lines you can buy the fitting that go on the turbo and some rubber hoses lot cheaper but I was in a hurry to get the car running so...

 

[2toneNV]

What parts do I need to fab my own coolant lines for the DBB turbo? Parts list and where to get them?

 

[highboost2000]

If possible I would like to see that list to, I also have a DBB. Thanks for the help.

 

[Jeff Rand]

Guys, be careful with the Precision coolant lines! I installed a 6776 with the coolant lines on a friends car and the first time at the track (5/27) the front line separated on the starting line just as I was starting to spool it up. Was quite a mess and of course the track was not happy. It appears that the SS pipe was pressed and glued into the SS ring (that's what it looked like to me). We now have both lines welded and I passed this information over to Cal so he could report it to Precision. Very dangerous if that line separated on the run. We have had this setup on the car for a few months and had the car dynoed about two months ago without any problems. By the way this stroker 109 engine (new rebuild) made 601 hp and 682 torque at the rear wheels @ 24#'s of boost.
Jeff

 

[conn84gn]

Boy that doesn't sound good

Go to atpturbo.com
14 mm bango fitting set for coolant lines - 3/8 Barb
Part # ATP-FTG-004
Then good hoses and clamps should do it.

 

[BMF_Racing]

Boy that doesn't sound good

Go to atpturbo.com
14 mm bango fitting set for coolant lines - 3/8 Barb
Part # ATP-FTG-004
Then good hoses and clamps should do it.

I also got fittings from ATP for this turbo, which ATP calls a T04z (used on alot of turbo Supra's). I used 6-an fittings because I like the positive/leakfree seal they have, no matter how many time you need to take them loose. :biggrin: