Nissan 370Z Forum - View Single Post - lowered my nismo now there is a thumping at 70 mph

HOTRODPRO · 02-25-2014, 04:16 PM

i'm hoping ya'll can help answer a question. i dropped my car 1' front and .5' in the rear with springs, and now i hear a thumping sound at 70 mph like something is flapping under the car. has anyone ran into this? i have looked under it and see nothing loose. could it be the front spoiler vibrating now that it is closer to the ground. if you drive below 70 it goes away. i have not tried it above 70.

thanks for your help.

-danny

02-25-2014, 04:16 PM	#1 (permalink)
HOTRODPRO Base Member Join Date: Dec 2013 Location: Spring, TX. Posts: 12 Drives: 2010 red Nismo #0203 Rep Power: 11	lowered my nismo now there is a thumping at 70 mph i'm hoping ya'll can help answer a question. i dropped my car 1' front and .5' in the rear with springs, and now i hear a thumping sound at 70 mph like something is flapping under the car. has anyone ran into this? i have looked under it and see nothing loose. could it be the front spoiler vibrating now that it is closer to the ground. if you drive below 70 it goes away. i have not tried it above 70. thanks for your help. -danny