Corvettehumlan

Whats that and how do U do it? :rolleyes:

Lone Ranger

Living in a cold climate area such as Sweden, you might be better off leaving it alone. The coolant is routed through the throttle body to help prevent frosting of the throttle body during cold weather operation.

Strick

:iagree: :yesnod:

vvv90

Or you can just take 5 minutes and put it back when the weather gets cold. The mod does not require you to butcher the hoses. Just plug 'em.

TB Bypass and Fan mod are a must for hot weather driving. Don't let anyone tell you differently.

Here's the C4 tech tip on how to do it.
https://www.corvetteforum.com/techti...D=61&TopicID=2


[Modified by vvv90, 9:06 AM 8/8/2003]

Lone Ranger

DO NOT PLUG the hoses! The TB gets its coolant feed from the steam tube-- the aluminum tubing that runs along the passenger inboard part of the valve cover. The steam tube receives steamed coolant from hot spots in the heads (if you look at back of motor there is a junction where the steam tube from driver side head passes its coolant to the steam tube from passenger side...passenger steam tube then routes this coolant to the tb) and condenses it back to liquid coolant. The flow of the liquid coolant back into the system must be preserved! You want to *bypass* it, not *plug* it. When you bypass you are still letting the coolant from the steam tube circulate back to the system, it just does not go through the throttle body any longer. If you plug the steam tube you risk warping or cracking the aluminum heads.





[Modified by Lone Ranger, 11:55 AM 8/8/2003]

vvv90

:iagree:

You're right. I didn't plug mine, I have a brass coupler in mine. Do the same and you can't go wrong. If it's a problem, I'm surprised the part about plugging them is listed in the tech tips section. They should edit that part out.

cicch95

:iagree: They must be coupled together. I made a tube from aluminum.

-Rick

Corvettehumlan

Thanx for all the answers guys! :cheers:

AGENT 86

Save your time !!
It stays cool for a while then all the engine heat transfers through.
I'll be returning mine to original soon.
:cheers:

vettek50

:iagree: DO NOT PLUG ,, BYPASS IS THE PROPER WAY.

fiberglasscoffin

0to60n4.5

Nice ALL WHEEL DRIVE C4 you have there. Your making all the heat your TB needs in that pic. :D

fiberglasscoffin

i dont get it? :confused:

FX GS

I thought he blew a radiator hose!! :eek: :rolleyes: :lolg:

silver & red CE

Actually, the frosting issue isn't anything to worry about. I've been driving my Vette and Impala SS with the bypass for over 6 years now, no problems with frosting. While Chicago isn't as cold as Sweden, we get our fair share of sub zero (F*) weather here. The issue isn't how cold it gets, but rather when there's lots of moisture in the air and it's just above freezing. In theory that's when the pressure drop across the TB blades could cause icing. But as we all know, air isn't a great gas for making a refridgerator. Really this is a legacy from carb'ed cars, the gas evaporating is a great refrigerant, just look at a 60's Corvair.

Eric