13/08/2026
We weren't going to release too much on this before doing a bit more testing.. But we've decided to bring you along on the journey.
V1 of our small runner SR20 turbo manifold has started to come to life. There are some clear flaws in the collector design due to time constraints and not being sure on final placement prior to needing to get it together and running to get a base line. Smoother flow characteristics will be sorted out in due time.
The goal? To increase velocity and get the old Trust to be making full boost at 3.5k rpm whilst not causing too much restriction up top. On a tired old engine with stock cams, we managed to achieve the goal of 20psi @ 3500rpm. It did fall off around 6k rpm as to be expected with stock cams, but we now have some Kelford Cams 188-A cams and Kelford gears to drop in and see how that pairs up!
We would love to hear your thoughts on the small runner design and theory!
