Black1990jeep
NAXJA Forum User
- Location
- california
On friends XJ we did a test on air flow with the hinge side of the engine lid propped open by one inch high spacers at the hinges. We place three streamers along the propped open edge of lid, and then drove. At highway speeds the streamers showed flow going into the engine bay. This may well result in less airflow thru the radiator. It certainly did not improve highway cooling. Suspect high pressure at the base of windshield causes this air flow pattern.