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

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

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

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.