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-   -   Cordycord's epic tube frame build (https://www.miataturbo.net/build-threads-57/cordycords-epic-tube-frame-build-64091/)

sixshooter 06-26-2014 04:50 PM

I was just pointing out that the water pump on the lower front of the engine is the inlet and not the outlet. The water goes into the block there and out at the back of the head.

Braineack 06-26-2014 04:58 PM

:btu:

cordycord 06-26-2014 04:59 PM


Originally Posted by sixshooter (Post 1143765)
I was just pointing out that the water pump on the lower front of the engine is the inlet and not the outlet. The water goes into the block there and out at the back of the head.

No I get it...front to back. We're splitting off some of the incoming cool water for the turbo. Theoretically the coolest water will be available right after the radiator and before entering the block.

Our turbo exit line meets up with the rest of the hot water after it's exited the block in the back, so hot turbo water doesn't have to go through the block before first going through the radiator.

Leafy 06-26-2014 05:00 PM


Originally Posted by cordycord (Post 1143771)
No I get it...front to back. We're splitting off some of the incoming cool water for the turbo. Theoretically the coolest water will be available right after the radiator and before entering the block.

Our turbo exit line meets up with the rest of the hot water after it's exited the block in the back, so hot turbo water doesn't have to go through the block before first going through the radiator.

The fact that you posted this makes me terrified that you've actually made a driving tube frame car.

GeneSplicer 06-26-2014 07:13 PM

Yup, you'd be reversing the flow you think you're going, feeding the hottest water to your turbo. Think water pump, then think pressure differential.
Now if you have an external pump before the coolant enters the block, and feed coolant to churbo right after it, then cool.
Edit to add: my track car was plumbed the exact way you're describing, but I used my heater core in-line before the turbo acting as a radiator. Yes it got hot in the cab... but I never had fogging issues

olderguy 06-26-2014 08:22 PM

Where is the thermostat?

triple88a 06-27-2014 09:36 AM


Originally Posted by cordycord (Post 1143771)
No I get it...front to back. We're splitting off some of the incoming cool water for the turbo. Theoretically the coolest water will be available right after the radiator and before entering the block.

Our turbo exit line meets up with the rest of the hot water after it's exited the block in the back, so hot turbo water doesn't have to go through the block before first going through the radiator.

Correct but theres no water pressure where you connected your inlet. You want that inlet to be on the other side of the water pump.

Vuti 06-27-2014 12:47 PM

https://www.miataturbo.net/attachmen...625_162357-jpg

If I see correctly you have the best source for cool water right next to your oil feed (MSM/94/GTX block).

https://www.miataturbo.net/attachmen...lokasvarzt-jpg
(Water feed is the one without the red circle :))

Tap in there and you have the best routing for your turbo water lines. Feed from the block and return after the thermostat to the KIA cover/upper hose.

cordycord 06-27-2014 03:03 PM


Originally Posted by olderguy (Post 1143813)
Where is the thermostat?

The thermostat is at the back of the block.

Here's my thinking: it's a closed system. The pump keeps the water flowing in a circular motion, even to the point where the water is seeing pressure at all points.

Vuti 06-27-2014 03:07 PM


Originally Posted by cordycord (Post 1144059)
The thermostat is at the back of the block.

Here's my thinking: it's a closed system. The pump keeps the water flowing in a circular motion, even to the point where the water is seeing pressure at all points.

If you have a closed pipe with two identical (low) pressure points at each end, does the water flow through the pipe?

cordycord 06-27-2014 03:08 PM


Originally Posted by Vuti (Post 1144060)
If you have a closed pipe with two identical (low) pressure points at each end, does the water flow through the pipe?

Good point. I was just picturing "flow".

Vuti 06-27-2014 03:11 PM

Just change the pickup for the block port and your system is golden...

thenuge26 06-27-2014 03:16 PM

No, if you were seeing equal pressure at all points, the water would not be moving. The pressure before the pump will be lower than the pressure after the pump, otherwise the pump wouldn't be working.

cordycord 06-27-2014 03:28 PM


Originally Posted by Leafy (Post 1143773)
The fact that you posted this makes me terrified that you've actually made a driving tube frame car.

I made this car in collaboration with some of the best builders in their field. I listened to what they had to say and then incorporated their knowledge into the design, which is what I'm trying to do here. Most posts here have been helpful...

TurboTim 06-27-2014 03:52 PM


Originally Posted by GeneSplicer (Post 1143805)
Edit to add: my track car was plumbed the exact way you're describing, but I used my heater core in-line before the turbo acting as a radiator. Yes it got hot in the cab... but I never had fogging issues

Same here, with the heater core supply being before the thermostat of course.

Cordy is just having a brain fart, it happens to us all. 'tis friday, afterall.

cordycord 06-27-2014 04:17 PM


Originally Posted by TurboTim (Post 1144079)
Same here, with the heater core supply being before the thermostat of course.

Cordy is just having a brain fart, it happens to us all. 'tis friday, afterall.

Thanks Tim. Happy to have given you your 100th prop. :)

One thing that's been pounded into me with this build is that "failure" equals progress, if you know how to react to it. It's the application of the scientific method where you're supposed to test a theory, have it fail, learn from your mistakes, and then adjust the theory with the lessons you've learned. That to me is a huge part of the satisfaction of the build process.

But getting to watch some members of the peanut gallery uphold the reputation of MT.net, not so much. :blah:

turbofan 06-27-2014 04:48 PM

Hey, what would we be without our reputation? :D

Looking forward to seeing this project completed, and seeing the car in person in September.

golftdibrad 06-27-2014 04:58 PM


Originally Posted by cordycord (Post 1144083)

But getting to watch some members of the peanut gallery uphold the reputation of MT.net, not so much. :blah:

you clearly have not seen this thread:
https://www.miataturbo.net/insert-bs...d-75269/page5/

GeneSplicer 06-27-2014 06:39 PM


Originally Posted by golftdibrad (Post 1144102)
you clearly have not seen this thread:
https://www.miataturbo.net/insert-bs...d-75269/page5/

lol, the only thing I contribute to MT is gayness

sixshooter 06-27-2014 06:55 PM


Originally Posted by GeneSplicer (Post 1144129)
lol, the only thing I contribute to MT is gayness

Not true.

You also disassembled the best looking car on the forum creating much sadness.


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