E90Post
 


Scorpp Design
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Gold Leaf in Engine Bay



Reply
 
Thread Tools Search this Thread
      08-16-2009, 07:20 PM   #1
AlpineCloud9
Captain
 
AlpineCloud9's Avatar
 
Drives: around the potholes
Join Date: Aug 2008
Location: Chicago, IL

Posts: 865
iTrader: (8)

Gold Leaf in Engine Bay

I was looking at some picture of the new Aston Martin One-77 and the old Mclaren F1. Both cars have gold reflective shield on the inside of the hood to reflect the heat from the engine. So that gave me this idea... Might be stupid, but I am throwing it out for you guys to give some opinion.

We all know our N54 runs pretty damn hot, to the point that I can see water steaming off the front hood in a rainy day at the stop sign. And since BMW decided to remove the insulation foam that use be attach to the bottom of the hood after MY2007, I am thinking that why can't we cover the bottom of the hood with gold leaf or something. I know it is going to look tacky as hell when you open up the engine bay. But I am also quite worry that clear coat on the top of the hood might start to fail after a few year because of the extreme heat that it is exposed to.
__________________

MY09 E92 335i: Monaco Blue / Saddle Brown / Grey Poplar
AlpineCloud9 is online now   United_States
0
Reply With Quote
      08-16-2009, 08:09 PM   #2
TiAg335i
Trance Life
 
TiAg335i's Avatar
 
Drives: 2007 E92 335i
Join Date: Jan 2007
Location: Long Island, NY

Posts: 4,710
iTrader: (4)

TBH, that sounds pretty ridiculous. it's doesn't get anywhere near hot enough to effect clearcoat.
TiAg335i is offline   United_States
0
Reply With Quote
      08-16-2009, 08:14 PM   #3
Vudoo4u2
Night Sh1ft
 
Vudoo4u2's Avatar
 
Drives: E90 M3
Join Date: Oct 2007
Location: It's bobsled time

Posts: 2,797
iTrader: (2)

Garage List
2011 BMW E90 M3  [5.00]
Send a message via AIM to Vudoo4u2
doubt the clear coat will fail, made for this type of application

I cannot imagine the cost of gold leaf on your hood...
__________________
Canon 14 F2.8 L II : Canon 50 F1.2 L : Canon 24-70 F2.8 L : Canon 70-200 F2.8 IS/L : Canon 5D Mark II : B+W Filters : Photo Whore
Vudoo4u2 is offline  
0
Reply With Quote
      08-16-2009, 08:41 PM   #4
kyleb350
Brigadier General
 
kyleb350's Avatar
 
Drives: F30 335i M-Sport
Join Date: Jun 2008
Location: LoMbard, IL

Posts: 4,130
iTrader: (6)

More cost effective to get a vented hood
kyleb350 is offline   United_States
0
Reply With Quote
      08-16-2009, 08:50 PM   #5
335xiR
Enlisted Member
 
Drives: Bullitt
Join Date: Aug 2009
Location: RI

Posts: 30
iTrader: (0)

Why not just go with a turbo blanket(s) and some heat wrap for the downpipes.
335xiR is offline  
0
Reply With Quote
      08-16-2009, 09:57 PM   #6
MuchMoore
Colonel
 
MuchMoore's Avatar
 
Drives: 08 E90 335i
Join Date: Jul 2008
Location: CenFla

Posts: 2,315
iTrader: (28)

Send a message via AIM to MuchMoore
You can purchase that type of heat shielding at Bimmerworld:

http://www.bimmerworld.com/html/gold...ctive-film.htm
__________________
| Andrew | M Technik | BMW Performance | BBS | Forge | V1 | LUX | Bilstein | Precision-Sport |

MuchMoore is offline   United_States
0
Reply With Quote
      08-16-2009, 10:11 PM   #7
I335
Brigadier General
 
I335's Avatar
 
Drives: '08 335i Coupe
Join Date: Jan 2008
Location: New England

Posts: 4,252
iTrader: (11)

Can you just order a heatshield from your dealer (or better yet, Tischer)? They're probably not that expensive. Gold leaf is a bit radical and I doubt it would really do anything anyhow. And if it did, would you be better off keeping all that heat in your engine bay?
I335 is offline  
0
Reply With Quote
      08-16-2009, 10:49 PM   #8
MuchMoore
Colonel
 
MuchMoore's Avatar
 
Drives: 08 E90 335i
Join Date: Jul 2008
Location: CenFla

Posts: 2,315
iTrader: (28)

Send a message via AIM to MuchMoore
Quote:
Originally Posted by I335 View Post
Can you just order a heatshield from your dealer (or better yet, Tischer)? They're probably not that expensive. Gold leaf is a bit radical and I doubt it would really do anything anyhow. And if it did, would you be better off keeping all that heat in your engine bay?
Id just suggest he wrap the bottom of the airbox, if nothing else it would look sweet.
__________________
| Andrew | M Technik | BMW Performance | BBS | Forge | V1 | LUX | Bilstein | Precision-Sport |

MuchMoore is offline   United_States
0
Reply With Quote
      08-17-2009, 09:08 AM   #9
94JZA80
Captain
 
Drives: 1994 BPU Supra
Join Date: Jan 2007
Location: Sarasota, FL

Posts: 647
iTrader: (1)

Quote:
Originally Posted by Vudoo4u2 View Post
doubt the clear coat will fail, made for this type of application

I cannot imagine the cost of gold leaf on your hood...
agreed, i doubt it will affect the clear coat on your hood. in all honesty, the gold leaf is rarely necessary unless you have ALOT of heat in VERY CLOSE proximity to whatever you're trying to protect. for instance, my brother's 99 M Coupe is in the process of getting a custom PT6262 top mount turbo under the hood, and b/c of space restrictions, we're having to use some gold leaf on the inner fender liner/strut tower:





...as you can plainly see, this turbo is FAR closer to the chassis and the underside of the hood than anything generating that kind of heat in a 135i/335i engine bay, and will also most likely generate far more heat than the small twins on the N54. granted, the exhaust side of the turbo will get heat coated, but we're not taking any chances with the bare chassis under the hood, and so we're protecting the paint with gold leaf. will it affect any of the paint on the exterior of the car? no, not at all.

so you really don't need gold leaf anywhere under the hood of your car. and at $18/sq. ft., i doubt you'll really want to gold leaf the entire underside of your hood - it won't be cheap...in fact it would most likely be a waste of money.
__________________
.
94JZA80 is offline   United_States
0
Reply With Quote
      08-17-2009, 03:58 PM   #10
ezatnova
Colonel
 
ezatnova's Avatar
 
Drives: C63 AMG
Join Date: Jan 2006
Location: West Chester, PA

Posts: 2,188
iTrader: (5)

You could try foil for a lot cheaper!
ezatnova is offline   United_States
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 02:01 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST