Forced Induction Superchargers | Turbochargers | Intercoolers

1970 GTO Twin Turbo

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Old 07-20-2014, 10:25 AM
  #101  
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Originally Posted by norotor7
They are Tial 38 MVS's. But I will still check them.

I have 10# springs in them now, and 4# springs to add the initial shake downs.
Oh, no worries then. They look just like the $50 China gates I use (well, the other way around really)
Old 07-20-2014, 11:09 AM
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Here's a look at the inside of the downpipe.

Old 07-20-2014, 11:24 AM
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Very nice...if I had welded it, it would look totally different inside !!! and not in a good way lol
Old 07-20-2014, 01:44 PM
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Originally Posted by norotor7
Here's a look at the inside of the downpipe.
Really well done! Back purge I'm assuming?
Old 07-20-2014, 02:45 PM
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Originally Posted by oscs
Really well done! Back purge I'm assuming?
Yes. Back purged.
Old 07-21-2014, 09:26 AM
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What size header flanges are those?
Old 07-21-2014, 10:36 AM
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Originally Posted by dmracing
What size header flanges are those?
1 5/8 and 1/2" thick.
Old 07-21-2014, 11:24 AM
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Some pics of the downpipe in the car.





Old 07-21-2014, 01:47 PM
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Damn... nice work.
Old 07-21-2014, 02:13 PM
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im certainly no religious man but,... jesus
Old 07-21-2014, 03:13 PM
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Very nice work !!
Old 07-21-2014, 05:12 PM
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That down pipe reminds me of a gp500 expansion chamber with all the welded sections - v.cool! looking forward to seeing this finished!
Old 07-22-2014, 03:47 PM
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Dude,,,that is a sick build.

Amazing.
Old 07-22-2014, 06:21 PM
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Your downpipe looks great! My welding buddy that did my car wouldn't have that much patience haha
Old 07-22-2014, 09:14 PM
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Sub'd for pics and all that jazz !
Old 08-01-2014, 10:25 AM
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I planned on running an A2A intercooler, but couldn't find one I really liked. I looked into buying a core and building the end tanks, but didn't want to take the time. I decided to go with a Type 22 A2W from Frozen Boost. Can't beat the efficiency for the money.

To use it the way I want, I needed to change a few things. I'm going to change the water fittings to larger 1.25" and change it from a single 4" in to a dual 3" in. The intercooler is cast aluminum so I ordered some cast aluminum 3" 90*'s to convert to twin inlets.
This is how it looked when I got it. It's the same on both ends.


Cut off the 4" inlet and cut 3" holes where the mounting lugs were.


I cut a piece of 11 gauge 6061 to cover the 4" hole. I used one of the mounting lugs on the back side.


This is what I ended up with. I think it will workout pretty well.

Old 08-01-2014, 10:33 AM
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I also got the other downpipe and waste gate dumps finished.


Old 08-01-2014, 12:12 PM
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Damn nice work.
Old 08-02-2014, 01:32 AM
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It's very rare to see this kind of skill with custom jobs outside of the big name shops. You are VERY good at fab work and your welds are beautiful! Keep up the good work sir!
Old 08-14-2014, 02:56 PM
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Do u have any updates of this amazing build. Love the idea of a 2 intercooler!


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