Following the Alexandre Ruban's Rebuilding Turbo Rails gem.
I believe once completed you should simply be able to include this in your rails application's gemfile. The functionality will be similar to if not exactly that of the Turbo Rails gem
Add this line to your application's Gemfile:
gem "turbo_clone"
And then execute:
$ bundle install
Or install it yourself as:
$ gem install turbo_clone
Contribution directions go here.
The gem is available as open source under the terms of the MIT License.