whats a TB bypass.
Thread Starter
Supreme Member
Joined: Oct 2001
Posts: 1,391
Likes: 0
From: Halifax, Nova Scotia Canada
Car: 1986 Camaro SC
Axle/Gears: 3.42
whats a TB bypass.
can somone explain to me what it means to have a TB bypass done, and what are the advantages, as far as i can figure it is for intake,
Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Well, I guess you know where the throttle body is, (follow your air filter pipes until it meets the engine, for those that don't know), but look right underneath the intake tube where it meets the throttle body. You'll see two little hoses going to the bottom of the throttle body. These are connected to the car's cooling system, just like the heater core. HOT coolant flows through these hoses! If you do the TB Bypass (you might see it listed as a !TB mod), you basically remove the hoses from the TB, and connect them together.
Look under thirdgen.org's tech page, there's an article on the TB bypass.
It's not so much a racetrack 1/4 mile mod (run the 1/4 mile, car cools down, run another 1/4 mile) as it is a street mod (car always hot). You might not even feel any horsepower from it! But since reality says a cooler engine, with cooler air and cooler fuel, will make more power, it goes against theory to have the throttle body (which lets all air IN to the engine) get warmed up to the temp of the antifreeze (160-195 degrees)!!
I bought heat sleeves a few years ago (never put 'em on, but you just reminded me) to go over my fuel hoses. Maybe I'll try to slap 'em on this summer. The fuel hoses I want to cover are the rubber lines on the driver's side; the ones that arc upward, and connect the metal pipe from the tank to the metal pipes for the fuel rail.
Look under thirdgen.org's tech page, there's an article on the TB bypass.
It's not so much a racetrack 1/4 mile mod (run the 1/4 mile, car cools down, run another 1/4 mile) as it is a street mod (car always hot). You might not even feel any horsepower from it! But since reality says a cooler engine, with cooler air and cooler fuel, will make more power, it goes against theory to have the throttle body (which lets all air IN to the engine) get warmed up to the temp of the antifreeze (160-195 degrees)!!
I bought heat sleeves a few years ago (never put 'em on, but you just reminded me) to go over my fuel hoses. Maybe I'll try to slap 'em on this summer. The fuel hoses I want to cover are the rubber lines on the driver's side; the ones that arc upward, and connect the metal pipe from the tank to the metal pipes for the fuel rail.
TGO Supporter
iTrader: (12)
Joined: Jun 2002
Posts: 6,819
Likes: 3
From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
I thought that was only for v8's??
I guess that will be a mod I will try and do when I redo the coolant system next week.
I guess that will be a mod I will try and do when I redo the coolant system next week. TGO Supporter
iTrader: (12)
Joined: Jun 2002
Posts: 6,819
Likes: 3
From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
ok, I know I sound stupid, but what all am I gonna need to do this. I seen a kit on ebay for like 10 bux. I'm sure its a rip off and I can do it for 3-4 provided I know what I need. Thanks
Thread
Thread Starter
Forum
Replies
Last Post





