Lowering cog by lowering seat(?)

Some changes following April at Vir before returned for the Vir-N de.

Lowered seat 1″

Replaced AAE steering rack with original Bosch unit, new seals by Total Race Prep

Replaced factory tie rods with Ground Control adjustable bump tie rod kit. Instructions mention 1/2″ drill required but factory spindle holes did not require this.

Um-modified radiator and oil cooler mounts to previous layout.

Road Atlanta 2021 Temp Spike

Water temp max 287F.  Rise & drop with rpm, lagging.
Oil temp max 226F
Coolant pressure (normal 18-24psi), 18-37psi
No steam, no sign of leak.
Radiator was cool to the touch minutes after race end.
Reservoir empty.
No issues detected from car.  It drove fine, drove into trailer at end of race, and into garage once home.
Tested thermostat, passed.No apparent obstructions in radiator.  
Pulled water pump, intact and good.
Pulled head, gasket has no visible signs of breakage/crack.  Odd wave between 1&2 in the gasket.

Catch can

For the Road Atlanta weekend, we changed the crank case ventilation from the intake manifold to a catch can, Turner’s. It was likely not designed for race use as ~50% of the oil aerosol passed through it and settled throughout the engine bay.

BMWCCA Race CMP Oct 2018


[ngg src=”galleries” ids=”392″ display=”thumbnail” images_per_page=”200″ captions_enabled=”0″ captions_display_sharing=”1″ captions_display_title=”1″ captions_display_description=”1″ captions_animation=”slideup”]