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Divorced downpipe

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Old 08-25-2018, 09:42 AM
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Divorced downpipe


  • Added heat extractors in the hood to help dissipate heat from the turbo
  • turbo header, upgrading to the supra AFM, and a new CT 26 ... the CT 20 took a dump after 31 years...
Any 22rte CT 26 guys see any advanatge in turbo lag by doing the divorced wastegate?
Got the header wrapped...

Last edited by 87-4runner; 08-25-2018 at 11:19 AM. Reason: Add a pic
Old 08-26-2018, 06:29 AM
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Externally gated turbos are just so much easier to control. You aren't limited by the turbo housing size to get that pressure released.
Old 08-26-2018, 01:10 PM
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I was surprised at how tiny the header is... i have big hands( my kids callem my mitts) I laughed when i saw the box and was like the header can't be in that little box


Ain't it perty
Originally Posted by Co_94_PU
Externally gated turbos are just so much easier to control. You aren't limited by the turbo housing size to get that pressure released.
I'm putting on the internal gate CT26... my question is will divorcing the exhaust and wastegate improve turbo lag?

Last edited by 87-4runner; 08-27-2018 at 09:15 AM.
Old 08-27-2018, 01:13 PM
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Well, I got to talk to an engineer at driftmotion.com ( he was awesome) he said the divorce would not help, but in fact would probably hinder performance in MY application...
Old 08-30-2018, 06:10 PM
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Originally Posted by 87-4runner
Well, I got to talk to an engineer at driftmotion.com ( he was awesome) he said the divorce would not help, but in fact would probably hinder performance in MY application...
Thanks for passing on the info.
Old 08-31-2018, 01:54 PM
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I'll take a few more pics and report on the progress... and how it changed things when I'm finished...
the header is actually pretty nice... good welds, heavy pipe and 1/2" plate where it bolts to the head... better than i expected...
i did have to enlarge the holes to make it fit but wasn't bad...
the water lines, oil feed, and oil return line bolted right up(plug& play)
the other things will require some customization.... TURBO to AFM, Intake to Turbo, turbo/ wastegate to exhaust collector... I'm going with 2 1/2" .
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