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 27th June 2019, 10:54 AM
motec 6.9's Avatar
motec 6.9 motec 6.9 is offline
Prodigal Son
 
Join Date: Jan 2009
Location: Cantberra
Posts: 6,323
Default Re: Mercedes V8 Inlet Manifolds

Have 3 so once I have proof of concept I may let others go
__________________
Research more post less.
Memnoch #1873 6.9 255.6 RWHP
The Kommando believed only 1 in Oz
Reply With Quote
  #32  
Old 28th June 2019, 06:29 PM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,564
Default Re: Mercedes V8 Inlet Manifolds

So in my spare time (very rare lately) I like to read:

http://docsdrive.com/pdfs/ansinet/jas/2012/161-167.pdf

If my calculations are correct (along with the formulas) a 6.9 has an ideal port size of 30mm at 700RPM & 68mm at 5500RPM! Pretty outrageous considering the throttle supplying the WHOLE engine is only 70mm!!!
__________________
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 28th June 2019, 07:41 PM
motec 6.9's Avatar
motec 6.9 motec 6.9 is offline
Prodigal Son
 
Join Date: Jan 2009
Location: Cantberra
Posts: 6,323
Default Re: Mercedes V8 Inlet Manifolds

Actually 6.9 is 65mm but yes 560 is 70mm I had one of those as well.
__________________
Research more post less.
Memnoch #1873 6.9 255.6 RWHP
The Kommando believed only 1 in Oz
Reply With Quote
  #34  
Old 29th June 2019, 06:20 PM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,564
Default Re: Mercedes V8 Inlet Manifolds

65mm is just laughable for such a big engine!
__________________
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 29th June 2019, 06:29 PM
motec 6.9's Avatar
motec 6.9 motec 6.9 is offline
Prodigal Son
 
Join Date: Jan 2009
Location: Cantberra
Posts: 6,323
Default Re: Mercedes V8 Inlet Manifolds

Yes why 85mm but also because going above will not leave enough meat in manifold to bolt holes.
__________________
Research more post less.
Memnoch #1873 6.9 255.6 RWHP
The Kommando believed only 1 in Oz
Reply With Quote
  #36  
Old 1st July 2019, 09:33 PM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,564
Default Re: Mercedes V8 Inlet Manifolds

Which prompted my current project...
__________________
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
  #37  
Old 1st July 2019, 09:39 PM
motec 6.9's Avatar
motec 6.9 motec 6.9 is offline
Prodigal Son
 
Join Date: Jan 2009
Location: Cantberra
Posts: 6,323
Default Re: Mercedes V8 Inlet Manifolds

I have spare intake may see how much I can increase volume by once I get car over east
__________________
Research more post less.
Memnoch #1873 6.9 255.6 RWHP
The Kommando believed only 1 in Oz
Reply With Quote
  #38  
Old 3rd July 2019, 02:05 PM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,564
Default Re: Mercedes V8 Inlet Manifolds

Finally my schooling & algebra have paid off!! Lesser thanks to Google for finding the correct formula! The most difficult part was knowing the right question (a little like “there is no spoon” in The Matrix)! Now I can buy the right parts to mock up my design! Sorry for the cryptic post, but it’ll all make sense later.... Very chuffed with myself right now!!!
__________________
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
  #39  
Old 4th July 2019, 12:14 AM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,564
Default Re: Mercedes V8 Inlet Manifolds

Quote:
Originally Posted by motec 6.9 View Post
Actually 6.9 is 65mm but yes 560 is 70mm I had one of those as well.
MB actually had the diameter of the 560 TB spot on, but failed to account for the turbulence & resistance created by the butterfly & shaft!

When I get the required dimensions, I’ll apply the same calculation to the 6.9.
__________________
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
  #40  
Old 4th July 2019, 01:53 AM
Oversize's Avatar
Oversize Oversize is offline
Aristocrat
 
Join Date: Apr 2010
Location: Melbourne
Posts: 4,564
Default Re: Mercedes V8 Inlet Manifolds

For future reference the inlet ports of a m117 are as follows:

500 41.0mm
560 41.35mm
500 AMG 41.50mm.

560/500 AMG valves measure 46.2mm. Obviously the valves are bigger to compensate for the resistance/turbulence created by the valve stems.
__________________
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
  #41  
Old 4th July 2019, 03:47 PM
motec 6.9's Avatar
motec 6.9 motec 6.9 is offline
Prodigal Son
 
Join Date: Jan 2009
Location: Cantberra
Posts: 6,323
Default Re: Mercedes V8 Inlet Manifolds

Thanks for that
__________________
Research more post less.
Memnoch #1873 6.9 255.6 RWHP
The Kommando believed only 1 in Oz
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
Clean inlet tracts sean sherry TECHNICAL INFORMATION 3 31st January 2017 08:32 AM
Not 116, but need help cleaning alloy inlet manifold John S EXTERIORS & BODY REPAIRS 11 11th September 2009 09:09 AM


All times are GMT +10. The time now is 12:12 PM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright Topklasse 2017