Im breaking in my built ZC in my 91 hatch and i have my full turbo system on. It's was to much of a pain in the *** to take everything off. So i was gonna take off the last chage pipe from the throttle body off, it's about 18iches long. That way there be a little backpressure but not much. I was wondering if this would hurt my new turbo, spinning free with almost no backpressure.
The reason being is that i'd like to rev it a little higher because it's hard to with the turbo on a not trying to get into boost. I don't wanna boost until i get some miles on my new engine.

 

yea that will hurt your turbo, just take the wastegate spring out.

Landon

 

This may be completely outlandish, it's just a free thought:

Why not remove that last charge pipe and put some kind of cap onto it with a hole in it? You could clamp it on with a hose clamp, it would provide the turbo with the necessary back pressure [but the hole would still allow the compressed air to escape] on the cold side, and it won't be feeding your engine any boost.

It may completely not work though...it's just something I thought of.

 

Haha, that kinda funny because that's what i was going to do before i even posted this. I just wanted to get some feedback before i tried it.