Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

quick exhaust advice needed

Thread Tools
 
Search this Thread
 
Old 01-16-2005, 03:12 PM
  #1  
Senior Member
Posts like a Corvette
Thread Starter
 
jachin's Avatar
 
Join Date: Sep 2003
Location: springfield il
Posts: 1,369
Likes: 0
Received 1 Like on 1 Post
jachin is on a distinguished road
Default quick exhaust advice needed

Would putting 2 1/4 outlet pipes on my muffler with 2 1/2 outs cause me to lose power? IM asking this because i dont have access to a welder and it would be about the only way to get my exhaust to finally stop haning down and falling off all of the time.
Old 01-16-2005, 03:50 PM
  #2  
Junior Member
Posts like a Ricer Type-R
 
willwren's Avatar
 
Join Date: Aug 2002
Posts: 11
Likes: 0
Received 4 Likes on 4 Posts
willwren is on a distinguished road
Default

I'd say that'* a big yes. Factory exhaust is 2.25 outlets.

Combined area on 2.25" outlets is 8 inches square. Dropping to 2" outlets takes you to 6.28 square inches. That'* a significant volume loss.
Old 01-16-2005, 03:58 PM
  #3  
Senior Member
Certified Car Nut
 
J Wikoff's Avatar
 
Join Date: Mar 2003
Posts: 12,433
Likes: 0
Received 2 Likes on 2 Posts
J Wikoff is on a distinguished road
Default

I'm not sure it would be much. It'* two pipes with more area than the one pipe to the muffler. I doubt you'll outlfow the 2.25".
Old 01-16-2005, 04:13 PM
  #4  
Senior Member
Certified Car Nut
 
BonneMeMN's Avatar
 
Join Date: Jun 2003
Posts: 15,928
Likes: 0
Received 1 Like on 1 Post
BonneMeMN is on a distinguished road
Default Re: quick exhaust advice needed

Originally Posted by jachin
Would putting 2 1/4 outlet pipes on my muffler with 2 1/2 outs cause me to lose power? IM asking this because i dont have access to a welder and it would be about the only way to get my exhaust to finally stop haning down and falling off all of the time.
You'll be fine, (2) 2.25 outlets will not the be the bottle neck in your exhaust. Your down pipe and main pipe is a single 2.25" or 2.5".
Old 01-16-2005, 04:18 PM
  #5  
Junior Member
Posts like a Ricer Type-R
 
willwren's Avatar
 
Join Date: Aug 2002
Posts: 11
Likes: 0
Received 4 Likes on 4 Posts
willwren is on a distinguished road
Default

Originally Posted by jwikoff99
I'm not sure it would be much. It'* two pipes with more area than the one pipe to the muffler. I doubt you'll outlfow the 2.25".
Good point. But at the same time, why go smaller?
Old 01-16-2005, 04:26 PM
  #6  
Senior Member
Posts like a Corvette
Thread Starter
 
jachin's Avatar
 
Join Date: Sep 2003
Location: springfield il
Posts: 1,369
Likes: 0
Received 1 Like on 1 Post
jachin is on a distinguished road
Default

unfortuanetly i have to work with what i have. right now i dont know how to weld yet, and all my tools are up at the shop. But im so sick and tired of having a crappy exhaust system that at this point ill do anything to get it done. I think you read the post before i edited it, willwren, im going down from 2.5 to 2.25, which is what most people run anyway right?
Old 01-16-2005, 04:27 PM
  #7  
Junior Member
Posts like a Ricer Type-R
 
willwren's Avatar
 
Join Date: Aug 2002
Posts: 11
Likes: 0
Received 4 Likes on 4 Posts
willwren is on a distinguished road
Default

Outlets from the muffler are 2.25" stock. Not 2.5". Factory muffler on SSEi'* and SSE'* is 2.5 inlet, 2.25 outlets.
Old 01-16-2005, 05:19 PM
  #8  
Senior Member
Posts like a Corvette
Thread Starter
 
jachin's Avatar
 
Join Date: Sep 2003
Location: springfield il
Posts: 1,369
Likes: 0
Received 1 Like on 1 Post
jachin is on a distinguished road
Default

right but the ones on my flowmaster muffler are 2.5s
Old 01-16-2005, 05:20 PM
  #9  
Senior Member
Certified Car Nut
 
BonneMeMN's Avatar
 
Join Date: Jun 2003
Posts: 15,928
Likes: 0
Received 1 Like on 1 Post
BonneMeMN is on a distinguished road
Default

Originally Posted by jachin
right but the ones on my flowmaster muffler are 2.5s
You'll need some adapter flanges then. Make sure you got 2.5 OD to 2.25 ID.
Old 01-16-2005, 05:25 PM
  #10  
Senior Member
Posts like a Corvette
Thread Starter
 
jachin's Avatar
 
Join Date: Sep 2003
Location: springfield il
Posts: 1,369
Likes: 0
Received 1 Like on 1 Post
jachin is on a distinguished road
Default

Ok guys thanx for the advice. I give up for today, i would rather wait until i have a few more tools around to fisnish this up, i did however fix the connection at the cat. converter, the damned thing was almsot completely out of the u-bend, so it would buzz. It sounded like a dodge neon and a comaro all at once. Ill probly take to work on saturday and just have someone teach me how to weld and leave the equipment on there
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RJGill84
2000-2005
31
01-13-2008 10:42 PM
ferullo0
Performance, Brainstorming & Tuning
3
05-07-2007 04:09 PM
jwakamud
General GM Chat
1
03-05-2006 01:03 PM
harofreak00
Forced Induction
6
11-02-2005 10:35 AM
h1081dan
Performance, Brainstorming & Tuning
20
09-14-2003 11:15 AM



Quick Reply: quick exhaust advice needed



All times are GMT -4. The time now is 12:52 PM.