LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Throttle Body Bypass?

Old Feb 26, 2004 | 07:05 AM
  #1  
Jason Pittman's Avatar
Thread Starter
Registered User
 
Joined: Feb 2004
Posts: 10
From: Texas
Throttle Body Bypass?

I've seen mention in various magazines of a TB bypass. What exactly is that and how is it done, is it hard or can it be explained very easily?
Old Feb 26, 2004 | 07:15 AM
  #2  
teke184's Avatar
Registered User
 
Joined: Sep 1998
Posts: 8,319
From: US 1 Mile Marker 52 in the Florida Keys
there is a tube running from the top passenger side of the radiator, across to the throttle body, then a line from the throttle body to a line that goes into the block (or head not sure).

HOT water is circulated through this to help on warm up and in cold climates. but under normal driving it heats the TB and in turn the incomeing air...resulting in a lose of power (cooler air= more hp)

on the 96-97 (maybe 95) you can just unhook the line from the radiator, and remove the line coming from the head and slip the rad line onto it...with no splicing of hoses.

i think on the 93-94 type TB the routing is a bit different and you need to splice hoses with a fitting from the local hardware.

check www.installuniversity.com to see if they have a how to
Old Feb 26, 2004 | 07:54 AM
  #3  
Eliminator's Avatar
Registered User
 
Joined: May 2003
Posts: 943
Mines a 94 I had to go to hardware store to get my hoses to connect after unplugging one and had to cut the other it didnt want to come off. $2.00 for the fitting and I already had the hose clamps.
Old Feb 26, 2004 | 09:38 PM
  #4  
Bud M's Avatar
Registered User
 
Joined: Oct 2000
Posts: 2,915
From: Sacramento
There is a coolant passage in the throttle body to keep it from icing up in freezing weather. Removing the hoses and splicing them together "bypasses" the throttle body coolant flow which keeps the throttle body cooler. A cooler throttle body transmits less heat to incoming air as it passes through the throttle body into the intake manifold. Cooler air produces more power.
On 93/94s you remove the 2 hoses from the throttle body and splice them together with a 3/8" barbed hose fitting. On later cars the procedure is different because the plumbing is different.
Old Feb 26, 2004 | 10:14 PM
  #5  
revtime's Avatar
Registered User
 
Joined: Nov 2000
Posts: 2,734
From: Kansas City suburb of
I did mine in about 10 minutes, many thanks to B&M for supplying the parts to do the bypass with leftover stuff from my tranny cooler.....
Old Feb 27, 2004 | 01:34 AM
  #6  
krispy's Avatar
Registered User
 
Joined: Nov 2002
Posts: 272
From: GPW, MI
the only problem i encountered was the click on the left side was hidden and pinched against the block, i just stuck a screw driver in there and destroyed it, get some hose clamps with the 3/8" barb fitting instead of the stock clips
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HectorM52
Parts For Sale
26
Jul 30, 2017 11:46 AM
RUENUF
Cars For Sale
1
May 25, 2016 08:10 PM
RUENUF
South Atlantic
4
Mar 13, 2016 03:39 PM
warmeck
General 1967-2002 F-Body Tech
1
May 1, 2015 11:30 AM
RedLineRev
LT1 Based Engine Tech
17
Jan 23, 2003 03:51 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 06:22 PM.