Couple years ago, 68HP on an unloaded dyno at ~5500' DA - with straight HOSE WATER... overfueled CR with twin everything, testing a highly modified intake & head (12-IR) using a dozen nozzles off a single 150psi pump.
Probably just dribbling through the orifices! :hehe:
Last run of the day, so Major Heat-soak was in the house...
Who says that NA intake design (pulse tuning, charge suspension, laminar flow, plenum volume, CSA/boundary layer ratio, etc.) doesn't matter in high-boost mills?
Not really - methanol's auto-ignition temperature is almost 900*F (never saw compressor discharge temp over 600*F), and it's explosive range in dry air is ~5-35%.
Mix outside the critical range or add water and it's not likely.
Actually, it works great as a chemical IC for twins.
Highest HP CR in TX got there with the help of a couple nozzles in between compressors a couple years back. :thankyou2:
Pull ~4* timing for a 50/50 mix; 70% load should be at least 5*
No, compressors ingest high humidity very well -no durability concerns with modern wheels.
Axial-mounted nozzles at correct distance & fan angle work best, but fogging upstream is decent 2nd choice.
Injection increases charge viscosity, which reduces compressor pumping losses, and centrifugal force causes liquid molecule migration along the blades to improve tip sealing. Win-Win :Cheer: