Single or Dual Exhaust... Which one for performance? - Page 2 - Ranger-Forums - The Ultimate Ford Ranger Resource


General Ford Ranger Discussion General discussion of the Ford Ranger that does not fit in any other sub-forum.

Reply
 
LinkBack Thread Tools Search this Thread
  #26  
Old 02-07-2005
Trevelyn1015's Avatar
Still El Presidente...
 
Join Date: May 2004
Location: Texas
Posts: 4,900
on a smaller motor like our ranger, from what i have read, seen, used, etc...

single inlet/dual outlet seems to be the most efficient and best looking(depending how you do it)...
Reply With Quote
  #27  
Old 02-07-2005
optikal illushun's Avatar
Member
 
Join Date: Oct 2004
Location: Coal Region, MTC to be exact...heart of the coal region.
Posts: 2,232
here, ur right im wrong. happy? is that what u wanted to hear?
Reply With Quote
  #28  
Old 02-07-2005
optikal illushun's Avatar
Member
 
Join Date: Oct 2004
Location: Coal Region, MTC to be exact...heart of the coal region.
Posts: 2,232
Quote:
Originally Posted by optikal illushun
How bout a big fat NO. u are still wrong bro. i dont see how u say im contridicting myself either .

larger exhaust pipe=less exhaust velocity. this makes the engine push harder to get the exhaust out, u loose scavenging ability.



Do you know how "scavenging" works??? Last I checked no one was properly tuning a motor to take advantage of a larger exhaust tract diameter on this site...

Where did i say that "tuning" for larger pipes was better?



Quote:
Originally Posted by optikal illushun
WRONG. backpressure is evil, end of the story. its when u boost the size in exhaust pipe u loose the exhaust velocity, that kills low end torque but helps high end power.

Quote:
Originally Posted by optikal illushun
Whenever back pressure can be reduced, the engine can then be tuned to make more power, regardless of rpm range.

THAT is COTRADICTING... You say loss of velocity, which is directly related to the piping size, will kill low end torque-help high end power but then, you change your mind and go on to say that it will make more power REGARDLESS of rpm range... Tell me how that is in agreement with itself?


that second part is not my own words, but its true. most factory exhausts are restrictive. opening them up a little helps performance. going to far kills performance, finding the happy medium is key.


Quote:
Originally Posted by optikal illushun
larger exhaust pipe=less exhaust velocity. this makes the engine push harder to get the exhaust out, u loose scavenging ability.



This makes no sense. The engine would have to breath harder to get all the spent gases out with a smaller size piping, this is what you call backpressure. Backpressure promotes an efficient scavenging rate sooner in the rpm range and directly promotes low end torque gain through the lower section of the powerband.


Quote:
You need to have the least amount of backpressure possible to produce maximum power. Too large of diameter exhaust will cause a power loss and loss of low end torque because a larger pipe has less exhaust stream velocity than a smaller pipe. If the exhaust pipe is too large, then the exhaust flow will be slowed with less velocity.
http://www.proficientperformance.com...k_pressure.php


ur missing the point here.


backpressure is no good in an engine regardless of size. but the reason u loose low end power is because of the increase of exhaust pipe diameter. the larger the pipe the more then engine needs to work to get the exhaust gases out.

Last edited by optikal illushun; 02-07-2005 at 08:51 AM.
Reply With Quote
  #29  
Old 02-07-2005
FoMoCoFiddy's Avatar
Member
 
Join Date: May 2004
Location: Smackdownville Tx
Posts: 4,508
Quote:
Originally Posted by optikal illushun
here, ur right im wrong. happy? is that what u wanted to hear?

Friendly argument...

Step 2: Remove panties from bunch
Step 3: Have a great day..
Reply With Quote
  #30  
Old 02-07-2005
optikal illushun's Avatar
Member
 
Join Date: Oct 2004
Location: Coal Region, MTC to be exact...heart of the coal region.
Posts: 2,232
Quote:
Originally Posted by FoMoCoEdge
Friendly argument...

Step 2: Remove panties from bunch
Step 3: Have a great day..

Reply With Quote
  #31  
Old 02-07-2005
karrbass4life's Avatar
Member
 
Join Date: Nov 2004
Location: Cincinnati, Ohio
Posts: 3,072
Quote:
Originally Posted by John Moorehead
FWIW, I had a dual straight-piped setup originally on my truck.

2.25" main pipe, split into two 2" pipes the remainder of the way.

Sounded good, but like Bob said, I lost backpressure. Now, I've got a single 2.5" system, and I immediately noticed a return in extra bottom-end grunt. And it's pretty loud, too. You can't sneak up on anyone, lol.
IM going with your set up personally since it sounds and looks like you know what the *** your doing. But H pipes or X pipes bad or EVIL!?! Explain, I know they "even out" exhaust flow, or so i've heard.
Reply With Quote
  #32  
Old 03-16-2017
Member
 
Join Date: Mar 2017
Location: Delphi
Posts: 2
okay im little late on this thread but for those just now reading now. i cut behind the front cats right behind the mainifolds jumped up to 2.25 in y piped in to a magniflow knock off dumped out in front of back tire amazing sound for a v6 3.0 and great performance
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Dual OR Single Exhaust: jaycheetwood General Technical & Electrical 18 10-03-2008 08:37 AM
FlowMaster 40 Series Dual or Single Outlet? HRoc 2.9L & 3.0L V6 Tech 3 01-14-2007 12:41 AM
Single vs Dual Exaust? drummerboy13 2.3L & 2.5L I4 Tech 5 05-05-2006 09:10 PM
Dual Voice vs. Single Voice. 3906brad Audio & Video Tech 19 01-07-2006 02:28 AM
POLL: which Dual exhaust tips will look better w/ a roll pan??? Scallion02EDGE Exterior Semi-Tech 18 11-15-2005 12:04 PM


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 -6. The time now is 07:25 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.