Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-05-2002, 02:30 PM
aks
Guest
 
Posts: n/a
450 SL Exhaust Question

having a 450SL exhaust manifold replaced, it is the type with
the "built-in" catalytics. The mechanic wants to use 380 exhaust
manifolds and "increase" the size of the 3rd catalytic.
Is this doable? downside? He says this will reduce the noise level
and heat buildup in the engine, but otherwise have no effect.

Thanks

akas
Reply With Quote
  #2  
Old 02-05-2002, 06:04 PM
Moderator
 
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
The three way cats of the 380 will never take the fuel mixtures of the 450. They will overheat and destroy themselves very quickly.

The 380 cats need an O2 sensor Lambda control system to keep the mixtures much leaner than a 450 can run.

The best combination would be to get an exhaust from a 77 to 79 450. This would have the cat under the car. It also would fit. The 4.5 is a wider motor than the 380 so I doubt that the crossover cat will be long enough.
__________________
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
450 SL Timing chain question Rockman59 Tech Help 5 03-06-2004 12:04 AM
108 exhaust question 68greezr Vintage Mercedes 12 11-27-2003 09:30 AM
Exhaust Manifold Removal Question... JoeyTheB Vintage Mercedes 4 11-19-2003 12:51 PM
Noisy 300E Exhaust Bud Tech Help 5 07-24-2002 10:29 PM



All times are GMT -4. The time now is 09:09 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page