Throttle Body Coolant Hose Bypass for VR6

[01 vr6 jetta]

Thank u so much for posting the huge post aboput the vr6 it tells me everythign i have ever wanted to kno about my vr6. They reeally are awsome cars and they have one of the most uniques sounding exausht ever. nadi have had many people tell me that. i have a cut-out exausht and it makes it sound awsome! it sounds like a diesel truck or a cammed mustang at idle then when u floor it it has the vr6 "scream". its defintly one of the loudest and unique sounding cars in my area. i love the car and it is a badass piece of machinery. I am also inteested in doing the coolant hose plugging to my car could someone pm me info about it?

[Mr_Diesel]

Coolant hose plugging? You mean the throttle body coolant hoses? Don't plug them... :D get a small hose connector from autozone and connect them together to make the bypass.

[01 vr6 jetta]

now i dont know what hoses u are talking bout connecting. is there anyway u could give me adiagram or somthing to look at?

[Mr_Diesel]

Well, is that what you meant by coolant hose plugging? The throttle body?

Well... there are two hoses that run to your throttle body. Coolant passes through here to "heat" up the TB in vey cold weather. Problem is, heated air is bad for performance! All you have to do is remove the hoses from the TB and connect them together with a brass or plastic hose connector. Home depot sells all kinds of brass fittings in their plumbing dept.

[01 vr6 jetta]

could u show me pictures of the hoses that i need to connect toghther and how much horsepower could it give me?

[Mr_Diesel]

Find your throttle body, it should be easy to spot. There are two hoses going into it. One on top and another along the right hand side. You pull out the two hoses and stick them together. There you're done. If your engine is hot, let it cool down and open the coolant tank to releive pressure... otherwise you'll get sprayed with hot coolant when you take that hose off. Also, wear latex gloves... if coolant absorbs into your skin you can die, fyi. This mod might give you 1 hp... perhaps more on a hot day. The thing is 1hp will make no difference really... but if you do intake, exhaust, cams, chip, underdrive pulleys, etc they are all part of a puzzle. Every little bit counts and it's almost free so why not? I'll bet this would improve your fuel efficiency by a fraction of a mpg too.


I honestly don't see a need to have the collant hoses heat the TB unless you live in an area where it gets below -10 Fahrenheit.

http://www.dubnetworks.net/dubhost/d/3353-1/vr_tbcoolant.jpg

Here's the fitting you need from Home Depot.... I think you need the 3/8" fitting. Get 2 small hose clamps and you are done.

http://www.dubnetworks.net/dubhost/d/3355-1/brass_fitting_vr6.jpg

[saf26]

Say I live in a place where the temps in the teens arent uncommon in the mornings. Will this make it harder to start the car?

[zukgod1]

Say I live in a place where the temps in the teens arent uncommon in the mornings. Will this make it harder to start the car?


Nope, the only problem I can see with this is if you lived in an area with a high humidity on cold mornings the throttle blade could possibly stick in the open position/ stuck throttle.

The air that rushes though there is generally cold, in summer months however this wouldn't be a problem

I haven't heard of anyone having an issue with this mod even in cold climates though.