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Project FD RX7 Restomod: Part 30 – Finishing the V-Mount with a CSF Intercooler and Vibrant Performance

  • Billy Johnson

Borg Warner EFR Compressor fabricationWe also cut down the 2.5” Tight-Radius Cast Aluminum Elbow from Vibrant Performance (PN: 2873) to get the turbo outlet closer to the inlet.  Between cutting down the turbo and the elbow, we were able to shorten this distance by nearly 3 inches.

MotoIQ Project FD RX-7Back on the car, we went to work on fabricating the charge pipe from the turbo to the intercooler.

Vibrant Performance HD Clamp Project FD RX-7We used 2.5” Vibrant Performance HD Clamps (PN: 32515) and 3” HD Clamps (PN: 32516) to connect the charge pipes.

Billy Johnson Racing FD RX-7 V-mount fab Vibrant Performance CSF IntercoolerWith the HD clamps tacked in place, we marked the pipes for tacking.

Billy Johnson Racing BJR FD RX-7 V-mount CSF Intercooler Vibrant Performance HD Clamp Borg Warner EFR8374We tacked the pipes and finish welded the Vibrant 2.5” HD Clamps for the final test fit before finish welding everything.  Since everything lined up, we were good to go.

Borg Warner EFR8374 EFR9180 Compressor housingsWe also finish welded the Vibrant Tight-Radius Cast Aluminum Elbows onto both the EFR 8374 and EFR 9180 compressor housings.

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Related Topics
  • Intercooler
  • Garrett Intercooler
  • CSF
  • CSF Cooling
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Project GT3RS Saving Weight With Advan Wheels and Dundon Motorsports Exhaust

  • Mike Kojima
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WATCH: What Makes the GR Corolla So Special? Full Tech Breakdown!

  • Jeff Naeyaert
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2 comments
  1. James says:
    August 4, 2025 at 8:34 am

    That V-mount design and the way the air intake tucks in perfectly to the side is so cool. I still can’t wait to see the end product! Hopefully Mike can get some vids of it out of you for the YT channel.

    Reply
  2. David White says:
    March 28, 2026 at 2:24 pm

    Did y’all decide to eliminate the BOV? On this DBW setup, I don’t see one like the original Greddy elbow setup that y’all put together at the first.

    Reply

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