[Jake Raby]

With the fan turned that direction, where will it be obtaining it's air from??

When the backing plate is installed the intake will be suffocated..

With all that plenum volume on the left side of the shroud you are gonna have one hell of a time directing the air on that side down to the cylinders. Thats one of the issues that I had with the Type I DTM in the beginning.

The other challenge is keeping that fan together at high RPM with any overdrive at all. Joe made a Hybrid fan for the DTM 15 years ago and I have tested it airflow wise and it didn't work worth a hoot. The last one I tested scattered the fan with a 1.24:1 drive ratio with a crank speed of 7,000 RPM.

The stock TIV fan cavitates at 4400 RPM a great deal, be ready to machine about one half of those fins off to get around this..

Glad to see you trying it, be ready for a year or so of trial and error to even get it close to being efficient.

Good luck- You'll be needing it!