Hi Guys, Im sure for some of you, this seems like a dumb question, but I do not know the purpose of the foam like insulation, which is located undere the engine hood. What would happen if you removed this carpeting and did without it? What does it do for the hood? Is it some kind of heat shield, so the sheet metal hood doesn't cook, due to the high hi temps ????
Thank you.
Robert
After reading all the posts about the carbon fiber hood topic, I was wondering, what would happen if you left off the insulation under the hood, so you could show the carbon fiber, when there is only clear coat applied as being the finish. No paint. Do you know what I mean?
Thank you.
Robert
Hey Robert,
I had the same Idea. Leaving it off. I think the major reason it is there is too lower Noise.
But with a louder exhaust, you won't here the induction noise anyway, so I think it will be cool to leave it off.
The plenum chamber will get much hotter as it is actually a lot closer and touching things. Their is at least a gap to the bonnet, and with increased air flow Via the Vents and M3 PB Vent, that should keep the hood cooler. I think if heat were a problem, then they wouldn't make plenums out of it.
I have herd of the Clear coat yellowing after a period, but that generally adds the the real look. Pretend stuff doesn't yellow and looks fake.
Poping the hood and seeing Full clear coated C/F will be awesome.
its just a matter of time, since we can only wait to see what Daniel is going to come up with. The sooner the btter but not lowering the standards in quality.
Robert
um whatever.
if the fire was burning the engine and it fell on it trying to smother it. it could save your " $50,000" engine. so its like a fire blanket.
I believe the M5 engine is a meer 20, 000 but, be that as it may, should there be an engine fire, the point is to protect the driver and stop the fire as quickly as possible. One way to do this would be to remove all available Oxygen from the blaze. I don't know if the dropping hood theory does this, but it does seem plausible.
Umm Chris, the main purpose for leaving it off, is so you can see the Carbon fibre bonnet. The C/F bonnet will be where the weight saving is. I'm painting the top to keep it subtle, but underneath would look cool when you popped the hood.
I was talking $50K AUD for the motor, which was the price quoted to me by BMW Australia. Thats about $25K USD.
Biker, if the blacket had to weight until the plastic melted before it dropped, your motor would already be screwed.
Its main purpose is sound deadening, with only minor heat synk capabilities.:byebye:
It doesn't look like the blanket could do much in case of a fire, and if one really wants protection from fire (which incidentally seems to be one of the more frequent things that happen in M5 accidents), then I would get an SPA fire system for a $1,200 (installed). This will save the occupants and the $25K engine. The beast is a capable machine and does not need a blanket to protect the engine. I wonder if the e46 M3 GTR has a blanket under the hood? I would guess that the blanket is for sound insulation.
Just my $0.02. Cheers.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
BMW M5 Forum and M6 Forums
3.2M posts
125.9K members
Since 2000
M5Board is the best forum community for information on the BMW M5 E60 (V-10), E39 (V-8), E34 (straight 6), E28, F90 and F10. Discuss performance, specs, reviews and more!