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

  • Billy Johnson

MotoIQ Project FD RX-7 Restomod CSF IntercoolerAfter finish welding the end tanks, we had to test fit the intercooler.

FD RX-7 XS Power SMIC vs Billy Johnson Racing BJR V-Mount CSF IntercoolerCompared to the original 12.5” x 12” x 3.25” SMIC from XS Power, our new 20” x 12” x 3” CSF Intercooler has a 60% larger surface area, which is 17% larger than the Pettit Cool Charge III (one of the largest and best SMICs on the market).

CSF Intercooler Project FD RX-7 Restomod Billy Johnson Racing V-mountOnce in the car, it is clear that we maximized all of the space, tucking the intercooler into the driver’s side headlight bucket.

Billy Johnson Racing BJR V-Mount CSF Intercooler MotoIQ Project FD RX-7On the passenger side, we have room for an air filter to get fresh air from the front of the car.

Billy Johnson Racing BJR FD RX-7 V-mount CSF IntercoolerFrom the front bumper, we can see the “V-mount” configuration of the radiator and intercooler.  Foam strips seal the intercooler to the radiator and to the frame rail.  The entire inlet of the front bumper is sealed off to create a high-pressure area in front of the coolers to force air through the coolers.

Borg Warner EFR 8374 EFR 9180 Compressor Housing FabricationWe turned our attention to the compressor housings of our Borg Warner EFR 8374 and EFR 9180 turbos.  We cut off the end of the turbo to weld on a 90* elbow.

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Related Topics
  • Intercooler
  • Garrett Intercooler
  • CSF
  • CSF Cooling
  • CSF Racing
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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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