TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

Routing to Remove Bypass Valve AND do Throttle Body Coolant Bypass

Thread Tools
 
Search this Thread
 
Old 08-02-2017, 08:00 PM
  #1  
Supreme Member

Thread Starter
iTrader: (1)
 
86FyrBrd's Avatar
 
Join Date: Jan 2001
Location: Quakertown, PA
Posts: 2,117
Likes: 0
Received 18 Likes on 7 Posts
Car: 1992 Camaro Z28 Convertible Z03
Engine: 383 SuperRam
Transmission: 700R4
Axle/Gears: 2.73
Routing to Remove Bypass Valve AND do Throttle Body Coolant Bypass

I'm looking to declutter the engine bay on my '92. It is only driven under 1,000 miles/year in nice weather BUT I want to retain all functionality. I already removed the A.I.R system and no want to get that ugly coolant bypass valve out of there.

If I understand my searches correctly basically I have to connect the hose that is hard mounted down on the passenger side frame rail up to the connection on the firewall.

Then where will I route the coolant line coming out of the intake manifold that currently runs through the TB to the bypass valve?
Old 08-03-2017, 12:15 AM
  #2  
Supreme Member

iTrader: (58)
 
Drew's Avatar
 
Join Date: Jul 1999
Location: Salina, KS
Posts: 20,309
Received 1,052 Likes on 748 Posts
Re: Routing to Remove Bypass Valve AND do Throttle Body Coolant Bypass

You would want to run the hose from the intake to the heater core, the other line from the heater core to the radiator. Be prepared for your AC to blow warmer.
Old 08-03-2017, 08:23 AM
  #3  
Supreme Member

Thread Starter
iTrader: (1)
 
86FyrBrd's Avatar
 
Join Date: Jan 2001
Location: Quakertown, PA
Posts: 2,117
Likes: 0
Received 18 Likes on 7 Posts
Car: 1992 Camaro Z28 Convertible Z03
Engine: 383 SuperRam
Transmission: 700R4
Axle/Gears: 2.73
Re: Routing to Remove Bypass Valve AND do Throttle Body Coolant Bypass

So...

The intake to the heater core, which is the higher one on the firewall right near the back of the valve cover.

The one down by the unibody rail back to the radiator, which it already goes there.

This brings up another question. The line going back to the radiator has a hard T-fitting that cuts the line to the top of the bypass valve into it. So I either plug that line off the tee or remove the tee and union where the tee was?

I'm not worried about the A/C performance, I want it to work but its a vert so it's barely used anyway.
Old 08-03-2017, 01:56 PM
  #4  
Sponsor

iTrader: (92)
 
Tuned Performance's Avatar
 
Join Date: Dec 2004
Location: Mile High Country !!!
Posts: 15,407
Received 649 Likes on 573 Posts
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Routing to Remove Bypass Valve AND do Throttle Body Coolant Bypass

Dayco 87662 makes a good tb bypass hose.
The following users liked this post:
Fire"Dutch"Bird (09-19-2020)




All times are GMT -5. The time now is 08:09 AM.