Wastegate Hoses Question

[19'sPrelude]

Took off the old Garrett and put on my new 60-1. The old turbo had a hose nipple on the snail (cold side) for my wastegate hose, however, the new turbo doesnt have one. I dont want to take the turbo out and tap the new snail so I'm looking for a place that I can hook the wastegate hose to.

I've heard people run it to the intake manifold, but for some reason I think I want the hose as close to the snail as possible so that I'm getting as close to exact boost psi readings as possible. If I hook it to the manifold I'm loosing 3-4 psi through the piping and intercooler, right? I was thinking of tapping the intercooler pipe that comes right off the snail and placing it there. (see picture)

Any suggestions?

[SiRed94]

Took off the old Garrett and put on my new 60-1. The old turbo had a hose nipple on the snail (cold side) for my wastegate hose, however, the new turbo doesnt have one. I dont want to take the turbo out and tap the new snail so I'm looking for a place that I can hook the wastegate hose to.

I've heard people run it to the intake manifold, but for some reason I think I want the hose as close to the snail as possible so that I'm getting as close to exact boost psi readings as possible. If I hook it to the manifold I'm loosing 3-4 psi through the piping and intercooler, right? I was thinking of tapping the intercooler pipe that comes right off the snail and placing it there. (see picture)

Any suggestions?

Well, actually hooking it up to the "snail" reduces the chance of boost spikes, and just makes the wastegate more responsive. But, I've heard that if you have a large core intercooler and your pressure drop across it is high, then the manifold will see less boost and hooking the wastegate line up to the manifold compensates for the pressure drop. (I don't know the validity of the second part of that) I always hook my WG line as close to the turbo as possible. But, yes it will be fine to tap a hole in the charge pipe where you have it marked. I have done that several times and it works fine.

[19'sPrelude]

How did you go about tapping a hole there and inserting a nipple for the hose? Is there a special tap or fitting that I need to get or do I just get a 1/8th tap and just use the nipple that came off my other turbo?

[jew_boy]

get a tap the size of ur nipple and do it and then screw the nipple in

[19'sPrelude]

get a tap the size of ur nipple and do it and then screw the nipple in

Simple as that huh.....guess I could have figured that one out

[SiRed94]

yeah its as simple as that, just drill the hole, tap it with the size of whatever nipple you are using and i would put some rtv around the threads to make sure theres no leakage and you will be good to go... G/L

[SiRed94]

oh and when you are tightening the nipple into the threaded hole be very, very easy with it because it doesn't take much to strip them out... just a little over hand tight is good...

[19'sPrelude]

oh and when you are tightening the nipple into the threaded hole be very, very easy with it because it doesn't take much to strip them out... just a little over hand tight is good...

Well, I searched around yesterday for the right drill and tap but couldnt find one, so I think I'm just going to run it to my intake manifold until i can get the right tap and or fitting. I'm only running 7psi so I dont think it will be too much of a problem.