Mesozoic
Well-known member
- Joined
- Mar 30, 2011
- Messages
- 415
- Reaction score
- 6
- Location
- Tucson, AZ
- My Car
- 1971 Mustang fastback restomod. Caged, stiffened, lowered, on 17" wheels with 4 wheel disc brakes and Bilstein dampers. PST polygraphite suspension kit w/Mustangs Plus springs. Custom SEFI-EDIS8 EEC-V injection based on '96 Crown Vic harness (CDAN4 strategy). 90mm induction, LMAF, 80mm Accufab TB, Edelbrock Victor intake, 42# injectors, fully ported RHS Pro Action 215 heads, long tube headers. '69 351W stroked to 408 using Scat 4340 crank, H-beam rods, SRP pistons. Comp Cams 284 Magnum hydraulic roller cam, Canton windage tray and main girdle w/blueprinted standard pressure oil pump. Serpentine conversion using late model 5.0 parts. Backed by a built 4R70W, FB Performance 3000 RPM triple-disc converter, custom alum driveshaft, stock Ford 9" w/3.50:1 billet LS.
My car is old. Very old. It was almost certainly not expected to have survived as long as it has and as a result, the interior rattles when rolling down a bumpy road. The suspension is sport/competition level stiff with custom valved Bilsteins, lowered, lower profile tires, and the chassis made stiffer with a fully welded rollcage tied into the frame, along with welded subframe connectors. Couple a stiff chassis with 500+ horsepower and you end up with a '71 Mustang that could really use some sound damping in a lot of areas.
I think the doors are particularly bad for making noise - not entirely sure why, but they are. The dash panel may also be somewhat culprit. On newer luxury vehicles I've taken apart I've noticed that there is ample use of thin rubber insulation between panels and their mounting interface. Would it make sense to add some to my Mustang in areas like the doors and the dash? What have others done to remedy all the noise and rattles in theirs?
I think the doors are particularly bad for making noise - not entirely sure why, but they are. The dash panel may also be somewhat culprit. On newer luxury vehicles I've taken apart I've noticed that there is ample use of thin rubber insulation between panels and their mounting interface. Would it make sense to add some to my Mustang in areas like the doors and the dash? What have others done to remedy all the noise and rattles in theirs?