Stock 3800 downpipe U bend cutaway pics - Monte Carlo Forum - Monte Carlo Enthusiast Forums


Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 03-25-2010, 03:31 PM
Monte Of The Month -- October 2009
5 Year Member
3 Year Member1 Year Member
Thread Starter
 
Join Date: Feb 2008
Posts: 3,545
Default Stock 3800 downpipe U bend cutaway pics

Found these, and decided to upload them to my photobucket. Figured I'd post these up here in case people search for downpipe or Ubend to see what the factory piece looks like.

These pictures are of the stock downpipe off my 99 GTP, but many 3800 stock downpipes are similar. I cut the cat out because I sent it in for money- figured I'd post the pics of what the restrictive parts look like.



Obviously the most restrictive part that everybody thinks of first is the U-bend, so we'll start there:



The stock catback bolts up to the left side and the stock cat is normally attached to the right side. The rear O2 sensor screws in from the top. Obviously this is not a good piece for flow...



View from the catback side of the Ubend- notice how 3/4 of the pipe's flow is diverted down- definitely not a straight shot.


Now for another part that people don't think of as being restrictive- the top/entry to the downpipe from the rear exhaust manifold. It looks to be pretty smooth and large diameter pipe from the factory- what could be bad about it?

Picture of the inlet of the downpipe:



Notice there is a little collar inside that really necks down- definitely much smaller than the rest of the piping.



Here is from the front side of the cat (cat cut off of course). You'll notice the pipe coming down from the engine is actually double wall- so the actual pipe diameter is a good bit smaller than it appears to be from the outside.


Just figured that might help people see what the stock downpipe looks like, hope I haven't posted these pics before.
Reply With Quote
  #2  
Old 03-25-2010, 03:40 PM
ChibiBlackSheep's Avatar

Monte Of The Month -- August 2014
5 Year Member
3 Year Member1 Year Member

 
Join Date: Sep 2008
Location: Wyncote, PA
Posts: 24,193
Default

Bumpin... you and I started this thread before

But since I can't find it, I'll throw up what a ZZP Downpipe looks like again.




(much straighter than that U-Bend)



*edit* Let me throw up more STOCK exhaust pictures.




Last edited by ChibiBlackSheep; 03-26-2010 at 07:36 AM.
Reply With Quote
  #3  
Old 03-25-2010, 03:47 PM
Monte Of The Month -- October 2009
5 Year Member
3 Year Member1 Year Member
Thread Starter
 
Join Date: Feb 2008
Posts: 3,545
Default

Oops, I get on so many different forums that I forget after awhile... lol

Hopefully it'll help somebody out at least?
Reply With Quote
  #4  
Old 03-25-2010, 07:07 PM
Enzo354's Avatar
STILL SLOW
Monte Of The Month -- May 2010
5 Year Member3 Year Member1 Year Member

 
Join Date: Sep 2008
Location: Nubraska
Posts: 7,074
Default

Quote:
Originally Posted by ChibiBlackSheep View Post
Bumpin... you and I started this thread before

But since I can't find it, I'll throw up what a ZZP Downpipe looks like again.
*snip*
Whats that?? Is that a cat?? I wish I had one LOL

And the u bend is a terrible thing.
Reply With Quote
  #5  
Old 03-25-2010, 07:40 PM
Jomao_o's Avatar
5 Year Member
3 Year Member1 Year Member

 
Join Date: Mar 2009
Location: MD.
Posts: 5,148
Default

Quote:
Originally Posted by ChibiBlackSheep View Post
Bumpin... you and I started this thread before

But since I can't find it, I'll throw up what a ZZP Downpipe looks like again.
*snipped the pictures*


Thanks for the info guys.
Stupid question, Mike or anybody for this zzp downpipe: is it bolt on or is welding required? sorry i am not car smart.

Last edited by ChibiBlackSheep; 03-26-2010 at 07:39 AM. Reason: Didn't want the images to show up again, when they are only 2 posts above.
Reply With Quote
  #6  
Old 03-25-2010, 08:12 PM
saigashooter's Avatar
5 Year Member3 Year Member1 Year Member

 
Join Date: Jan 2008
Location: Stevens Point, WI
Posts: 385
Default

The ZZP is a bolt in, though a torch is handy for loosening up rusty bolts.
Reply With Quote
  #7  
Old 03-25-2010, 08:58 PM
thumpingetocar06's Avatar
Photobucket
Monte Of The Month -- October 2010

 
Join Date: Aug 2009
Location: Appleton, WI
Posts: 618
Default

Ya whatever you do.... dont breakt the studs off! HAHA I crack myself up! o boy, car goes into the shop wednesday to get my mistake taken care of!
Reply With Quote
  #8  
Old 03-25-2010, 09:00 PM
saigashooter's Avatar
5 Year Member3 Year Member1 Year Member

 
Join Date: Jan 2008
Location: Stevens Point, WI
Posts: 385
Default

Mines going in monday to prevent just such an issue lol.
Reply With Quote
  #9  
Old 03-25-2010, 09:45 PM
Jomao_o's Avatar
5 Year Member
3 Year Member1 Year Member

 
Join Date: Mar 2009
Location: MD.
Posts: 5,148
Default

Thank you, very much.
Reply With Quote
  #10  
Old 03-25-2010, 09:50 PM
saigashooter's Avatar
5 Year Member3 Year Member1 Year Member

 
Join Date: Jan 2008
Location: Stevens Point, WI
Posts: 385
Default

If I understand, you have no exhaust right now. You should make a video of that, bet it's nice and loud
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
6th gen 3400 downpipe same as 3800? JrDonahue396ss Monte Carlo Repair Help 11 07-21-2015 12:12 AM
Non-foulers on Stock U-Bend farmerjg Headers/Intake/Exhaust 7 10-28-2013 11:12 PM
ZZP Downpipe & U-Bend Questions (P0420) Dubstepticon Headers/Intake/Exhaust 8 06-10-2013 05:30 AM
New Downpipe with U-Bend/Resonator Delete! MonteLSV6 Headers/Intake/Exhaust 9 03-27-2011 11:35 PM
Downpipe for 3800 on 3500??? alabamamonte General Monte Carlo Talk 6 12-26-2008 09:53 PM


Tags
bend, bending, bolts, carlo, cutaway, cutaways, downpipe, downpipes, exhaust, gtp, monte, rusted, ss, stock, ubend

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 11:20 PM.