throttle body coolant flow direction - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

mhiscott · 07-11-2016, 06:59 PM

I'm bypassing my TB to run lines to my GTX turbo.

Which end is which as far as flow direction for the coolant? Is the feed at the driver's side rear of the engine, or is the feed the short U shaped hose?

Thanks!

Mike

brianhj · 07-12-2016, 12:02 PM

According to edelbrock installation pdf, the INLET is the hose that connects to the front of the throttle body and the OUTLET is the hose that connects to the side of the throttle body

Sportsguy83 · 07-12-2016, 01:56 PM

Quote:

Originally Posted by mhiscott

I'm bypassing my TB to run lines to my GTX turbo.

Which end is which as far as flow direction for the coolant? Is the feed at the driver's side rear of the engine, or is the feed the short U shaped hose?

Thanks!

Mike

I don't think water direction matters going to the turbo? I'm not completely sure.

mhiscott · 07-12-2016, 05:24 PM

Water direction matters if you want the peak cooling efficiency out of your turbo.

https://www.turbobygarrett.com/turbo...er_Cooling.pdf

Water Cooling Installation Checklist
1. Rotate (clock) the center housing to 20° from horizontal, either direction, once turbo
is installed
2. Choose suitable locations to tap the vehicle cooling system. The turbo can be
plumbed in-line with a heater line or heater hose if convenient.
3. Ensure water will always fl ow through turbo regardless of whether heater valve is
open or closed
4. Check www.turbobygarrett.com or the Garrett® catalog to fi nd the water port thread
specifi cations for your particular turbo
5. Choose lines and adapters based on the port threads and desired layout in the
vehicle
6. Plumb the colder (input) water into the lower port on the center housing
7. Run the hotter (output) water from the higher port on the center housing
8. Ensure there are no up/down undulations in the output line leading back to cooling
system
9. If hard lines are used anywhere in the system, use fl exible sections to prevent
cracking due to vibration or engine torque
10. Use crush washers to seal connection to center housing water ports
11. When refi lling cooling system after turbo installation, check coolant level frequently
and top off as needed
12. Be sure that cooling system is completely bled, with no air pockets remaining
13. If engine is air-cooled, carefully consider a separate water cooling system when
using a water-cooled turbocharger.

07-11-2016, 06:59 PM	#1
mhiscott Senior Member Join Date: Dec 2013 Drives: 2013 FRS Location: NL, Canada Posts: 190 Thanks: 37 Thanked 39 Times in 29 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	throttle body coolant flow direction I'm bypassing my TB to run lines to my GTX turbo. Which end is which as far as flow direction for the coolant? Is the feed at the driver's side rear of the engine, or is the feed the short U shaped hose? Thanks! Mike

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07-12-2016, 12:02 PM	#2
brianhj Senior Member Join Date: Jul 2013 Drives: 2017 Camaro 1SS Location: Houston, TX Posts: 869 Thanks: 321 Thanked 347 Times in 199 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	According to edelbrock installation pdf, the INLET is the hose that connects to the front of the throttle body and the OUTLET is the hose that connects to the side of the throttle body

07-12-2016, 05:24 PM	#4
mhiscott Senior Member Join Date: Dec 2013 Drives: 2013 FRS Location: NL, Canada Posts: 190 Thanks: 37 Thanked 39 Times in 29 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Water direction matters if you want the peak cooling efficiency out of your turbo. https://www.turbobygarrett.com/turbo...er_Cooling.pdf Water Cooling Installation Checklist 1. Rotate (clock) the center housing to 20° from horizontal, either direction, once turbo is installed 2. Choose suitable locations to tap the vehicle cooling system. The turbo can be plumbed in-line with a heater line or heater hose if convenient. 3. Ensure water will always fl ow through turbo regardless of whether heater valve is open or closed 4. Check www.turbobygarrett.com or the Garrett® catalog to fi nd the water port thread specifi cations for your particular turbo 5. Choose lines and adapters based on the port threads and desired layout in the vehicle 6. Plumb the colder (input) water into the lower port on the center housing 7. Run the hotter (output) water from the higher port on the center housing 8. Ensure there are no up/down undulations in the output line leading back to cooling system 9. If hard lines are used anywhere in the system, use fl exible sections to prevent cracking due to vibration or engine torque 10. Use crush washers to seal connection to center housing water ports 11. When refi lling cooling system after turbo installation, check coolant level frequently and top off as needed 12. Be sure that cooling system is completely bled, with no air pockets remaining 13. If engine is air-cooled, carefully consider a separate water cooling system when using a water-cooled turbocharger.

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