Topklasse Discussion Board  
Home Forum Legal/Privacy Media/Picture Gallery Websites and Links Technical

Go Back   Topklasse Discussion Board > THE CRAFTSMAN - TECHNICAL DEPARTMENT > MECHANICALS

MECHANICALS With a 30 year-old automobile, there will always be discussion here - maintenance, modifications and mechanicals.

Reply
 
Thread Tools Search this Thread Display Modes
  #31  
Old 16th August 2019, 10:57 AM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,862
Default Re: 6.9 exhaust

If you think youíve finished, youíre not looking hard enough!
__________________
Mark

01 Ford AU 5L (Deep Blue)
88 420L Euro#-P
88 420L#-P
88 420L#2477-P
87 560L#2020 (Dora 2)
87 560L #9987
87 420L#4309-P
87 420L#-P
86 560L#5896-P
79 6.9#5541 (Red Bull)
78 6.9#4248 (Skye)
79 6.9#3686 (Moby Dick)
78 6.9#1776 (Dora 1)
77 450L#7010-P
75 450L#8414 (Gold Nugget)-P
57 Buick 73A (Titanic)
Reply With Quote
  #32  
Old 20th February 2020, 12:56 PM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,862
Default Re: 6.9 exhaust

The more I think about it, the more I think a single 3-3.25" OD would be more desirable than a dual exhaust. It would weigh less, flow the same or better, would be easier to make, use less material and therefore cost less. It would also eliminate the need for a balance pipe.

I think dual exhaust was used due to ground (and other) clearance issues and the possibility 3" mufflers weren't common (or available)? There is also the possibility duel exhaust had the perception of power similar to quad exhaust now and 4 stacks on the old ocean liners!

So my next exhaust will be a single where possible, with a dual outlet.
__________________
Mark

01 Ford AU 5L (Deep Blue)
88 420L Euro#-P
88 420L#-P
88 420L#2477-P
87 560L#2020 (Dora 2)
87 560L #9987
87 420L#4309-P
87 420L#-P
86 560L#5896-P
79 6.9#5541 (Red Bull)
78 6.9#4248 (Skye)
79 6.9#3686 (Moby Dick)
78 6.9#1776 (Dora 1)
77 450L#7010-P
75 450L#8414 (Gold Nugget)-P
57 Buick 73A (Titanic)
Reply With Quote
  #33  
Old 20th February 2020, 01:08 PM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,862
Default Re: 6.9 exhaust

I would pay attention to the wall thickness too, since you don't want to select a pipe that has an OD that appears sufficient but the ID is below the minimum required for optimum flow.
__________________
Mark

01 Ford AU 5L (Deep Blue)
88 420L Euro#-P
88 420L#-P
88 420L#2477-P
87 560L#2020 (Dora 2)
87 560L #9987
87 420L#4309-P
87 420L#-P
86 560L#5896-P
79 6.9#5541 (Red Bull)
78 6.9#4248 (Skye)
79 6.9#3686 (Moby Dick)
78 6.9#1776 (Dora 1)
77 450L#7010-P
75 450L#8414 (Gold Nugget)-P
57 Buick 73A (Titanic)
Reply With Quote
  #34  
Old 21st February 2020, 04:36 PM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,862
Default Re: 6.9 exhaust

I may also consider having sections of larger pipe hydraulically crushed into an oval shape where ground clearance may be an issue!
__________________
Mark

01 Ford AU 5L (Deep Blue)
88 420L Euro#-P
88 420L#-P
88 420L#2477-P
87 560L#2020 (Dora 2)
87 560L #9987
87 420L#4309-P
87 420L#-P
86 560L#5896-P
79 6.9#5541 (Red Bull)
78 6.9#4248 (Skye)
79 6.9#3686 (Moby Dick)
78 6.9#1776 (Dora 1)
77 450L#7010-P
75 450L#8414 (Gold Nugget)-P
57 Buick 73A (Titanic)
Reply With Quote
  #35  
Old 25th February 2020, 08:56 AM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,862
Default Re: 6.9 exhaust

I havenít used these guys but know others that have. If youíre after an amazing exhaust in VIC you can go past these guys. Iíll be getting them to do my next one...





__________________
Mark

01 Ford AU 5L (Deep Blue)
88 420L Euro#-P
88 420L#-P
88 420L#2477-P
87 560L#2020 (Dora 2)
87 560L #9987
87 420L#4309-P
87 420L#-P
86 560L#5896-P
79 6.9#5541 (Red Bull)
78 6.9#4248 (Skye)
79 6.9#3686 (Moby Dick)
78 6.9#1776 (Dora 1)
77 450L#7010-P
75 450L#8414 (Gold Nugget)-P
57 Buick 73A (Titanic)
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Exhaust Mods abl567 TALKING TORQUE 9 1st November 2008 01:11 PM
New exhaust for trusty rusty s class MECHANICALS 13 18th May 2008 04:51 PM
Cheap exhaust system W116 V8 Sydney, Au B13 TRADING POST/EBAY LISTINGS 0 10th April 2008 07:55 AM
6.9 Exhaust manifold gaskets koan MECHANICALS 11 3rd March 2008 04:44 AM


All times are GMT +10. The time now is 01:20 PM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Copyright Topklasse 2020