Exhaust formation - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans Advertise
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-01-2020, 12:43 PM
R4MM's Avatar
GUILLOTINE
 
Join Date: Apr 2006
Location: eastern ireland
Age: 37
Posts: 51
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Exhaust formation

I have been suggested an exhaust formation 6-2-2 does this mean true duals? 6 headers into a muffler each? Atm all headers run into one pipe which I assume is 6-1-1 ,but any help on this formation thing would be of great help

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-01-2020, 01:36 PM
RWENUTS's Avatar
Registered User
 
Join Date: Nov 2011
Location: Bowser, BC, Canada
Age: 68
Posts: 5,099
Wiki Edits: 0

Thanks: 458
Thanked 727 Times in 659 Posts
A lot depends on what motor you’re talking about.
Many different designs of header systems.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-01-2020, 01:48 PM
R4MM's Avatar
GUILLOTINE
 
Join Date: Apr 2006
Location: eastern ireland
Age: 37
Posts: 51
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
In-line/straight six
Reply With Quote Quick reply to this message
 
  #4 (permalink)  
Old 02-01-2020, 01:57 PM
RWENUTS's Avatar
Registered User
 
Join Date: Nov 2011
Location: Bowser, BC, Canada
Age: 68
Posts: 5,099
Wiki Edits: 0

Thanks: 458
Thanked 727 Times in 659 Posts
Some inline sixes have a split header. Some don’t.
Two collectors or one.
Depends on header builder.
Split can be used for true duals or pipe y’ed to one pipe and muffler.
A lot depends on room for pipes and muffler.
I had a 250 Chevy with Langdon’s cast iron split headers. Had true duals. Passenger side pipe ran under rear of motor.
Exactly which motor do you have?
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-01-2020, 08:42 PM
R4MM's Avatar
GUILLOTINE
 
Join Date: Apr 2006
Location: eastern ireland
Age: 37
Posts: 51
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
2.0 1GE, 87 toyota crown hearse
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-01-2020, 09:04 PM
RWENUTS's Avatar
Registered User
 
Join Date: Nov 2011
Location: Bowser, BC, Canada
Age: 68
Posts: 5,099
Wiki Edits: 0

Thanks: 458
Thanked 727 Times in 659 Posts
Is there a header available or do you just want a dual exhaust?
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-01-2020, 09:11 PM
techinspector1's Avatar
Member
 
Last wiki edit: DynoSim combinations
Join Date: Oct 2005
Location: Zephyrhills, Florida, USA
Age: 77
Posts: 17,162
Wiki Edits: 326

Thanks: 2,008
Thanked 2,926 Times in 2,181 Posts
Firing order is 1-3-4-2, so I would run 1 and 4 out of one pipe and then 3 and 2 out another pipe to equalize pulses and backpressure.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 02-01-2020, 11:12 PM
Registered User
 
Join Date: Jan 2020
Posts: 90
Wiki Edits: 0

Thanks: 7
Thanked 9 Times in 9 Posts
techinspector1 Crowns have a 6
Had a 69 crown
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 02-02-2020, 02:06 AM
techinspector1's Avatar
Member
 
Last wiki edit: DynoSim combinations
Join Date: Oct 2005
Location: Zephyrhills, Florida, USA
Age: 77
Posts: 17,162
Wiki Edits: 326

Thanks: 2,008
Thanked 2,926 Times in 2,181 Posts
Quote:
Originally Posted by Moosecountry View Post
techinspector1 Crowns have a 6
Had a 69 crown
The info that the OP posted "2.0 1GE, 87 toyota crown hearse" comes up as a 4-cylinder motor when I google it. This looked right to me because I have never heard of a 2.0 liter 6 cylinder motor from Toyota. I have done the best I can do and have no further answers.

Update, I did find a 2.0 liter 6-cylinder motor, now looking for the firing order...…
This motor is turbocharged, so there is no use in trying to make more power by eliminating backpressure. If the OP has a motor that is not turbocharged, then there is no information on the web about it that I can find and I cannot help. I don't understand the 6-1-1 or 6-2-2 arrangement anyway.
.

Last edited by techinspector1; 02-02-2020 at 02:28 AM.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 02-02-2020, 03:35 AM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 53
Posts: 18,005
Wiki Edits: 0

Thanks: 281
Thanked 3,350 Times in 2,803 Posts
I believe he is referring to "6-2-2" as 6 exhaust ports into 2 downpipes/collectors into 2 mufflers, which would be a true dual system.
"6-1-1" would be a common inline 6 low performance stockish exhaust, 6 exhaust ports into 1 downpipe/collector into 1 muffler.

"6-2-1" would be a common V6 exhaust, 6 ports into two downpipes/collectors into 1 muffler. You'll also find some Straight 6 performance tube headers with this configuration.

Here in the US with our V8 stuff it is typically 4 into 1 for a standard 4 port header into 1 collector, one each bank of a V8 and a 4 onto 2 into 1 that is more commonly called a Tri-Y header, 4 ports into 2 intermediate header pipes then into 1 collector
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 02-02-2020, 05:03 AM
R4MM's Avatar
GUILLOTINE
 
Join Date: Apr 2006
Location: eastern ireland
Age: 37
Posts: 51
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Yes he is correct it's a 6 cylinder supercharged, I probably missed a letter as it's worn so I can see the other identies
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 02-02-2020, 05:07 AM
R4MM's Avatar
GUILLOTINE
 
Join Date: Apr 2006
Location: eastern ireland
Age: 37
Posts: 51
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
So 6-2-2 is a good suggestion Eric? I'm going for a throaty agressive sound in-line sixes I've seen on you tube almost sound like v8s they have their 6 cylinder tone still which gives it a unique tone. That's what I'm going for
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 02-02-2020, 05:20 AM
Registered User
 
Join Date: Jan 2012
Location: Grand Rapids, MI
Posts: 2,251
Wiki Edits: 0

Thanks: 232
Thanked 490 Times in 395 Posts
Let me first say that I have a secret love for M engines. Hard to talk about a the GE engines without starting with the M series.

The M is old school simple. 2 valves, over head cam, side draft carburetor engines that are a joy to run and work on. These puppies rev and love to rev so yes improving the exhaust makes them happy.

Later on they tossed out the timing chain for a belt and went to very simplistic fuel injection which evolved into the GE.

It is hard to fully respect these engines until you drive one in something light (like a boat).
You respect them more once you rebuild one (increasing displacement) and find just how well they are built.

You can tap the rev limiter several times a day for years with these engines and they will just ask for more.

The 5M Yamaha/Toyota engines getting into dohc, fuel injection, computer controlled timing, and supra territory really shine this engines capabilities with improved things like hydraulic components to keep the cams happier before it is improved further using fuel injection (improving the turbo capabilities) becoming the GE series.

The emissions really hold these engines back. But if your running fuel injection the thing may have the after cat sensor. If you don't have this sensor then your golden to run custom exhaust. Tuning really comes into play with the fuel injection. You can do some amazing things and have a good amount of flexibility in NA form with the M and 1 GE engines. The thing will run just be a bit rich in many cases.

These engines really show what 100 to 200hp with the guts to drive the thing and shift the thing mean all the time can really do while keeping things simple and reliable.

One of those things if there were more of them over here you would no doubt see more in hot rods running side drafts with velocity stacks or a turbo with fuel injection. Once again working on them and packaging vs a v8 makes them amazing.


Going true dual is not recommended.

Using a single setup is going to provide weight savings and more pulses. That is not saying you can not improve the flow going to a manifold with runners leading to a 3 to 2 then 2 to 1 collectors. If you have a single sensor I would mount it IN the 2/1 collector (thicker material) then run 2.5" to a muffler located at the rear of the thing which makes packaging easier and pulls the pulses back to the muffler instead of having them slam into the thing if it was located right after the collector.

Please post a picture of this beast and one of the engine bay please.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 02-02-2020, 06:24 AM
R4MM's Avatar
GUILLOTINE
 
Join Date: Apr 2006
Location: eastern ireland
Age: 37
Posts: 51
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Looking at the engine may not be GE as I see a timing chain
Attached Thumbnails
Click image for larger version

Name:	12101589_1580646211200.jpg
Views:	38
Size:	88.2 KB
ID:	451561   Click image for larger version

Name:	20191219_143104_1580646266331.jpg
Views:	33
Size:	54.9 KB
ID:	451563  
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 02-02-2020, 06:27 AM
R4MM's Avatar
GUILLOTINE
 
Join Date: Apr 2006
Location: eastern ireland
Age: 37
Posts: 51
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Nvm says 1GE XD it's a new purchase I'm still learning, but ide love to have it sound throaty and aggressive atm all ports run into 1 then end into 1 so yes anything you suggest, as for the sensor you. Mentioned I'Il have to do. More looking
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 05:05 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.