Yes, noisy. DEAFENING !


suggestions for door window leading edge air flow guides


the doghouse ? inside and in cockpit ...


under dash ? the 2008 here has a metal drain pan under the wiper cowl cover...how does the pan figure ? maybe a drum head...a better idea.


is underneath outside or more foil blanket on the engine area walls ?


how do we remove asphalt odor from Dyna sheets ? There are sheet here on the shelf for 8 VCxx!)0X years n the sheets smell.

 

Quite a few threads on this subject out here with lots of ideas. Is yours a cargo van or a passenger van. That kinda changes what you can do.

Mine is a passenger van and this is what I am doing/have done (halfway through right now):
1. Pulled up carpet. Added 3 layers of commercial rubber roofing to the floor, then an extra layer of carpet pad. Make sure you have a moisture barrier between the metal and the carpet pad since the pad will hold water.
2. Coat the inside of the doors, behind panels and the ceiling with foil roll insulation. Then fill the the spaces with unfaced insulation. Some have used fiberglass insulation, I used the denim stuff from Menards. I also coated the back of the panels with another layer of foil insulation. The idea is that you don't want the unfaced insulation agianst the metal for moisture reasons.
3. I pulled the instrument cluster and other control panels out of the dash and stuffed unfaced denim insulation in all the open spaces and crevices I could find.
4. Pulled the doghouse and removed the factory insulation on the inside. Then I used peal and stick firewall/hood insulation from Summit against the inside bare surface of the doghouse. Then i put the stock insulation back on. I have also been looking for one of the removable doghouse covers that go on the cab side of the doghouse. If I cant find that I will probably use more of the peel and stick stuff on the inside and then cover it with pad and carpet.

Another thing to look at is your exhaust and what your rear gear/transmission combo is. Mine is a c6 (3 speed) with 3.54 gears. I added a DNE2 O/D which increased my mileage and lowered my engine RPM at cruising speed. The lower RPM did wonders for noise reduction. I also redid my exhaust with larger diameter tubing and added a quieter muffler which helped a lot (though I stayed with a straight through muffler to maintain better flow.

 

Thanks ! I’ll look thru the information. Did not see removing the doghouse foil …


Recommend a source of rolled space foil ? as over the Ford rearward exhaust area. Where the foil sheet is several foil sheets each layer separating into air spaces every 1/8th inch. Bubble foil.


At this time, the truck has Summit rubber with foil on floors.


Walmart cardboard on top then floor liners.


Foil requires an air space under it for physical effectiveness.


Amazon is shipping:
http://www.amazon.com/s/ref=nb_sb_noss/179-0353741-6218831?url=search-alias%3Dgarden&field-keywords=shaw+felt+rug+central


I assume, probably in total error, that house felt holds moisture where Ford felt does not. Plan is covering the deep felt with:
http://www.seattlefabrics.com/vinyl.html#18 oz. Vinyl CoatedPolyester


I was using the 18oz as floor bathtub liners for 6 years..in yellow. Eyeglasses and keys on yellow is findable. As durable as stated.


3/8th’s of 18oz would beat Dyna-smell. Chip seal is baaad enough out on the road …


Deep felt with foil in an 18oz envelope as a commercial product
?


Looking for forward window shields in clear Sunlite. A very hi db comes from that area.


I have an E250 Cargo van with partition. Tho moving the amp bolted behind my head, aux electronics ground terminal board, fire extinguisher…for insulation board on partition metal is a PITA..that is ahead. Behind noise db is objectively unknown as I’m not sure I hear that over window wind, wheel well,and doghouse noise.


The doghouse cockpit side is an opportunity for hi tech otherwise fragile, ie ‘acoustic’ absorption as from 'sound recording studios' out in the garage. Finding low prices is the route there and authenticity.


There is information from acoustical engineering sources.

 

3 ROLLS OF COMMECIAL RUBBER ROOFING...what does that smell like with windows closed n heater running ?

 

It was 1 roll, came out to 3 layers.

There was a slight odor when I first put it in, but it went away after about a day. Plus it was my base layer, so it was covered with carpet pad and carpet.

The foil insulation can be purchased at any home improvement store. It is the kind that looks like it has bubble wrap in it.

 

How about a butyl and foil combo for floors aka Dynamat?

 

I've kept away from this thread even though what's being proposed and actually used is waaaaaaaaaaaaay more overkill and needless money being spent for little benefit. Having already insulated 4 E250s using Dynamat and other so-called "sound proofing" materials of that type just isn't worth the cost.

What I use on the inside surfaces of the body and inside the door shells is this product: http://http://www.radiantbarrier.com...insulation.htm Besides being almost completely inert and NOT asphalt at all its a bit superior to other materials. When properly adhered to the inner sheet metal with a 3M spray adhesive after the initial out gassing of the solvents there are no odors forever more.

Used on the sides and roof in a double layer the effect both thermally and sound attenuating quality is pretty amazing, even if I say so myself.

I also used unfaced bat fiberglass insulation stuffed loosely inside the door shells and lower cavities

Another aspect too often over looked is what material directly contacts the metal floor---vitally important to resist/prevent rust in certain climates. This needs to be completely non-absorbent, ideally nothing more than 5/8" or 3/4" plywood with nothing between it and the ribs of the floor. Not only does this give a bit of insulation in a place its not that beneficial anyway it kills so much road noise its amazing.

On top of the plywood any sort of covering is acceptable--budget and personal taste being the only constraints.

Keep in mind this is offered by someone whose been there, done that on 4 different E-Series.