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-   -   What is a good substitute for sound padding in engine bay? (http://forums.pelicanparts.com/porsche-911-technical-forum/216400-what-good-substitute-sound-padding-engine-bay.html)

MichiganMat 04-16-2005 09:41 AM

I used some reflective bubble-insulation from the hardware store, its great stuff. Cost me 4 bucks.

http://forums.pelicanparts.com/uploa...1113669705.jpg

stlrj 05-18-2005 02:43 PM

But if you want something with a little less flash and a bit more stock looking then you might consider this:

http://forums.pelicanparts.com/uploa...1116452450.jpg

http://forums.pelicanparts.com/uploa...1116452492.jpg

http://forums.pelicanparts.com/uploa...1116452526.jpg
Domestic car trunk carpet


Joe Garcia
74 w/3.2 transplant

randywebb 05-18-2005 03:17 PM

What's out there that works, stays put, and looks good?

- The (new) stock sound pad! It weighs nearly nothing, does not reflect heat back onto the engine, and curbs noise and heat transmission thru the firewall.
Clean well before putting it in. I just posted a compilation of threads on this.

Some of the ideas here look pretty scary... I hope you guys have Halon systems...

stlrj 05-18-2005 05:11 PM

- The (new) stock sound pad does very little to reflect heat back or curb noise for that matter.

-Costs a bundle

-Falls appart in no time

-Made of foam that burns like anything else out there

-Falls appart when you touch it

What did I miss?

Did you happen to notice that your engine fan shroud is make of fiberglass reinforcd plastic and the manifolds on the later cars are made of plastic?

Should I be scared?

Joe

ZOA NOM 05-18-2005 05:37 PM

Why are you guys gluing the pads in?

http://forums.pelicanparts.com/uploa...1116463026.jpg


No glue, just held in place with the "hooks".

Ken911 05-18-2005 07:30 PM

I have just put dynamat in mine , I had a really tough time getting it to stick. haven't put the engine back in yet so no idea how well it will work

randywebb 05-18-2005 10:40 PM

I dunno where stlrj bought his pad, but I padi about $45 for my stock pad. The wt. is in my database and is accurate. It works just fine for noise and heat for me. So I really don't know where that comment is coming from.

Also, different plastics have different flash points and heat tolerances - I would not use carpet like materials in the engine bay -- also flip it over and look on the back.

Never use a plastic in the engine compartment that is not rated for that use...

jpahemi 05-18-2005 10:54 PM

The tin foil look makes the engine bay look like a stove top; leave it off. Remove the glue and wax the shell.
j.p.

strother 05-19-2005 05:14 AM

My engine doesn't produce as much sound or heat (or power) as Jack's, so I took out the pad. Well, it was kinda falling apart and it took itself out. Good riddance.

targa911S 05-19-2005 05:54 AM

Pad...I don't need no stinking pad. Took it off years ago.

stlrj 05-19-2005 06:21 AM

Who cares about flash point, if your engine catches fire, your engine bay, perhaps your entire car is toast anyway...gimme a break!

Hey, my brother won't set foot in my 911 'cause it lacks air bags or antilock brakes.

Are we driving unsafe automobiles?

Joe

targa911S 05-19-2005 07:12 AM

does your brother drive a Volvo?

randywebb 05-19-2005 08:50 AM

The flash point is important because if it is low enough then IT can be the material that starts the fire...

I heartily agree that we should all ignore the years of work by the engineers at Porsche AG....

OTOH, maybe someone has found a new material that works better than the revised sound pad (IIRC, correctly they changed it in the 1980's). If you did, then just post your data and your methodology...

jpahemi 05-19-2005 09:12 AM

Randy:
The RSR's of the 70's seem to have deleted the pad; is the factory pad used for noise or fire suppression?
Regards,
J.P.

Zeke 05-19-2005 09:51 AM

Quote:

Originally posted by stlrj
Who cares about flash point, if your engine catches fire, your engine bay, perhaps your entire car is toast anyway...gimme a break!



Joe

Pardon me, but I think that is a rather irresponsible statement. You have to remember that all kinds of people read these threads. Some never join, jut read.

Fire resistant materials make plain common sense. No need to "add fuel to the fire" (as I just did ;) :D ).

stlrj 05-19-2005 10:07 AM

Quote:

does your brother drive a Volvo?
How'd you guess?

And you'll never guess what he got his son after he totaled the Sable.

stlrj 05-19-2005 10:24 AM

Quote:

Pardon me, but I think that is a rather irresponsible statement. You have to remember that all kinds of people read these threads. Some never join, jut read.
Sorry, but you can't make me feel guilty for what people do after playing violent video games or reading my opinions.

911pcars 05-19-2005 11:00 AM

Is AstroTurf acceptable? :)

Sherwood

Zeke 05-19-2005 12:00 PM

There ya go, Sherwood. A little humor never hurt. Especially after that non-sequitur ;)

targa911S 05-19-2005 12:08 PM

Quote:

Originally posted by stlrj
How'd you guess?

And you'll never guess what he got his son after he totaled the Sable.

It just always appears to me that those who drive Volvos are really afraid of driving. Just my .02


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