I'm doing a throttlebody bypass on my 97 z28 but the hoses are different sizes. Does anybody know what the inside diameter of the two hoses are? Thanks for the help.

 

here's one way of doing it http://shbox.com/1/tb_bypass.jpg

 

it's basically telling me to remove the hose on the side and run the one from the radiator back to where the side one connected to the back of the engine right. But the problem I'm havings is the side hose is larger then the front hose so I don't think the front hose would fit onto elbow and I don't think the front hose is long enough anyways.

 

Just thread bolts that are slightly larger than the inside of the hose then some clamps for extra protection it will work great I had my 3.4 like that for about a year and it never leaked

 

mine has a t fitting on the bleader. it looks like yours runs off the steam pipe and they are removing the fitting and running straight though. im assuming the other hose gets plugged. anyways the nipple i picked up was the same on both ends, i think a 3/8th fitting. on the big side i squashed the hose with a clamp till it sealed.

 

What exactly does this do? How does it help?

 

It reroutes the warm coolent away from the throttlebody so the airflow stays cooler and cooler air makes more horsepower.

 

^ Also causes driveability issues during cold weather, and gives 1/2 hp power gain. That is the the factory went through all the trouble to run coolant through the throttle body.

 

I don't drive my Camaro in cold weather. If you do then don't do it. My brother did it to his firebird and gained 6 hp at the wheels(dyno tested). There are alot of things that are done at the factory that have a negative on HP

 

The same engine gets different numbers on every dyno run. Six hp on a 300 hp engine is well within normal variation, and nothing that will be noticed, by either the butt dyno or on a 1/4 mile run.