86shelby
04-10-2011, 11:56 PM
The past several months I've been collecting parts and doing some research on building a downpipe for my R/T. The one I bought the car with left a lot to be desired; so Jeff (Forcedfedmopar)and I got together last night at his shop and went to town.
First off; HUGE thanks to both Supercrackerbox and Forcedfedmopar for thier help; I doubt the project would have been completed without thier help.
I had been staring at this in my apt for a few months. I was pretty sure I had enough pipe and enough bends once I got one of the 1.5" sticks bent with a bunch of 35ish* bends.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0305010948.jpg
Notice the 'REJECT' decal. Every piece of pipe used was a blem/reject for some reason or another. Oh there's a small ding in it or the ends are 1/16" away from where they need to be...and that's why it is pennies on the dollar? Alright! Works perfect for me!
Out with the old! Notice the totally awesome crushed bends and the cutout that whacked the floor anytime the clutch chattered in reverse. The first part I believe flows great for an internal gate, it's nice and open but after that first 10 inches or so it goes downhill. Don't use headerwrap kids, holy rusted and flakey pipe. It was wrapped since Dec. '07.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/downsized_0409012350.jpg
Here a pic about 1/2-2/3 way through. My phone was about to die, so I didn't take any more pics. The pics out of the car are courtesy of Jeff.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0409012258.jpg
Here is the finished product. You should have seen how excited Jeff & I were as we were finishing this up. Once it started to take shape it was difficult to get the smiles off our faces. :)
Went for the test drive, figured that the 10lb spring would limit to 10 lbs without any reference hooked up. Negative. Rolling into the throttle in 2nd it felt like something wasn't quite right. Slowed down & did it again and saw the boost gauge rocket to 30 psi before I could let off. :shock: Promptly put an air reference on the bottom port, all is well with 10 psi now.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0409112258.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410110158.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410110158a.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410110158b.jpg
Everything fits in here quite well and all but one bolt is very easily accessible. Looks pretty good and definitely flows better than the crushbent jobber that was in there before. Tial 38mm and everything is stainless except the top O2 bung. The way the angled bung fit was worth it for it to be mild. Please excuse the mess with the reference line and the old WG actuator; it was far too late for me to care, I just wanted to drive it and get home.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410011647.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410011647b.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/downsized_0410011647a.jpg
The WG hole was opened up quite a bit. The turbine outlet was simply laid back for a gentler path into the tubing as it is larger than the outlet on the turbo to begin with. The main reason to go with an external setup was to gain control of the boost. The WG hole in the turbine housing had been opened up too far and was difficult to control it above 20-22 psi, or below 20 depending on how many helper springs were on there. It needed to change; and the change was well worth it.
First off; HUGE thanks to both Supercrackerbox and Forcedfedmopar for thier help; I doubt the project would have been completed without thier help.
I had been staring at this in my apt for a few months. I was pretty sure I had enough pipe and enough bends once I got one of the 1.5" sticks bent with a bunch of 35ish* bends.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0305010948.jpg
Notice the 'REJECT' decal. Every piece of pipe used was a blem/reject for some reason or another. Oh there's a small ding in it or the ends are 1/16" away from where they need to be...and that's why it is pennies on the dollar? Alright! Works perfect for me!
Out with the old! Notice the totally awesome crushed bends and the cutout that whacked the floor anytime the clutch chattered in reverse. The first part I believe flows great for an internal gate, it's nice and open but after that first 10 inches or so it goes downhill. Don't use headerwrap kids, holy rusted and flakey pipe. It was wrapped since Dec. '07.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/downsized_0409012350.jpg
Here a pic about 1/2-2/3 way through. My phone was about to die, so I didn't take any more pics. The pics out of the car are courtesy of Jeff.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0409012258.jpg
Here is the finished product. You should have seen how excited Jeff & I were as we were finishing this up. Once it started to take shape it was difficult to get the smiles off our faces. :)
Went for the test drive, figured that the 10lb spring would limit to 10 lbs without any reference hooked up. Negative. Rolling into the throttle in 2nd it felt like something wasn't quite right. Slowed down & did it again and saw the boost gauge rocket to 30 psi before I could let off. :shock: Promptly put an air reference on the bottom port, all is well with 10 psi now.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0409112258.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410110158.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410110158a.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410110158b.jpg
Everything fits in here quite well and all but one bolt is very easily accessible. Looks pretty good and definitely flows better than the crushbent jobber that was in there before. Tial 38mm and everything is stainless except the top O2 bung. The way the angled bung fit was worth it for it to be mild. Please excuse the mess with the reference line and the old WG actuator; it was far too late for me to care, I just wanted to drive it and get home.
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410011647.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/0410011647b.jpg
http://i225.photobucket.com/albums/dd65/86Shelby/Mobile%20Uploads/downsized_0410011647a.jpg
The WG hole was opened up quite a bit. The turbine outlet was simply laid back for a gentler path into the tubing as it is larger than the outlet on the turbo to begin with. The main reason to go with an external setup was to gain control of the boost. The WG hole in the turbine housing had been opened up too far and was difficult to control it above 20-22 psi, or below 20 depending on how many helper springs were on there. It needed to change; and the change was well worth it.