Slant 6 Turbo 68Dart Project

I am not ignoring the question, but can't answer it because I don't understand the part about the turbo you're using having had a built-in wastegate. You are not using a GN Buick turbocharger, I think, and they are the only turbos I am aware of that have a built-in wastegate, though there are others, I am sure.

The turbo on my car is a 4-bolt flange 66mm Turbonetics (T-4?) and requires an external wastegate, and beyond that, I know nothing. Sorry for being NO HELP...:sad7:

Here's what I'm referring to, this hole; the flange i currently have blocks it off though.

http://s43.photobucket.com/user/serj22/media/Turbo 225/IMG_20140828_064158_zps103eacca.jpg.html

It is based on a T04e which is the gran national (sort of). It doesn't have a built "on" wastegate, but it has provisions for one in the form of a hole in the back which was controlled by a diaphragm right on the outlet of the turbo that would control a plunger to vent it into the down-pipe after the pressure is reached. This one has a flange but the hole is blocked off so it is unused. I was thinking of mounting a 1" pipe parallel to the 3" down, off the same flange - and then have the wastegate downline vent back to the downpipe.

But either way, I like Rusty's idea better, of just branching off the bottom, maybe with a cool U bend back -would look neat.

Cut day was today. Felt really bad cutting into the huntress, but she will appreciate it in the long run.

http://s43.photobucket.com/user/serj22/media/Turbo 225/IMG_20140828_072002_zpsa33f54ca.jpg.html

http://s43.photobucket.com/user/serj22/media/Turbo 225/IMG_20140828_074242_zpsac54e44d.jpg.html

The passenger side i cut out, but once I bent the flange off, there was no way to get my cutting wheel on it like the other side to remove it, so unfortunately for now it stays... ugh. It will probably get used to mount something. Both sides my 90* elbows pass through flawlessly and with plenty of clearance. I will put some kind of seam on all of it just in case - so it won't cut the vinyl.



http://s43.photobucket.com/user/serj22/media/Turbo 225/IMG_20140828_074532_zpsc160aca2.jpg.html

Also in that picture you can see where I moved and hid the horns - right under the hole behind the grill.

http://s43.photobucket.com/user/serj22/media/Turbo 225/IMG_20140828_125259_zpsdeec0e5f.jpg.html

90* pass through excellently.

Then I got myself a welder and tacked the J pipe together after I dropped the exhaust pipe down, and then brought it in to weld the rest. Can you tell I have no idea what the **** I'm doing? I did give it a good effort, and over time I'll get better I'm sure. (also I did not weld it on my coffee table - I just am displaying it there)

http://s43.photobucket.com/user/serj22/media/Turbo 225/IMG_20140828_142922_zpsdab435cd.jpg.html

Rather than follow how Rusty did his and bend flanges off the pipe to meet the square, I am simply going to use two 1/8" steel bars, that will sit next to the pipe with a slight radius, and will come back to form the basis for my bracket. 2 birds - 1 stone kinda thing.