Forced induction, exhaust manifold - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
» Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Exhaust
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 10-23-2003, 05:08   #1 (permalink)
LET EM' RIPPP
 
Join Date: Mar 2002
Location: Melbourne
Posts: 1,819
Forced induction, exhaust manifold

Hey guys.

Just wondering if I could get a few opinions here.

How important is the exhaust manifold design on a turbo setup.
I'm talking of boost levels around the 10-15psi mark on an I6.
Is it more/less important then in a N/A setup?

The reason I'm asking is because over the past few years I have seen a few turbo setups using pretty poor looking manifolds and still managing to make some decent power figures.

Is maximum flow the key?

Simon.
__________________
CAUTION: Slippery When BOOSTING!
Bass Crazy is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-23-2003, 05:31   #2 (permalink)
100 SPEED LIMITED SILVAEA
 
gm dstroya's Avatar
 
Join Date: Nov 2002
Location: gold coast and off playing with 32psi of boost pumping into 4.1lt of pure ohc feralness and developing a 350hp n/a kit for ea-au i6, also making 5.0lt gear soon enuf
Posts: 1,043
Re: Forced induction, exhaust manifold

a few people say who cares.. as long as it spins the turbine.

to a degree its true, but a well designed and high flowing manifold will mean better drivability as boost will build quicker thus producing more torque and the whole experience is far better then with a car that has poor flowing manifold.

and u have pm..

cheers.joe.
__________________
live in S.E. queensland? bit of a revhead? click here!!--> speedphreaks

1000hp is underway. rods,pistons here!! t88 on its way!!
gm dstroya is offline   Reply With Quote
Old 10-23-2003, 05:47   #3 (permalink)
Two SC 61's = trouble
 
ebxr8240's Avatar
 
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 61
Posts: 6,360
Re: Forced induction, exhaust manifold

Yes some are small and short. But it's more designed for low end power.As against longer equal length manifolds takes longer to spool or takes power higher in rev range due to velocity being lower..Pro's and con's both ways not too far away from n/a..
__________________
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
.
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...
ebxr8240 is offline   Reply With Quote
Old 10-23-2003, 09:28   #4 (permalink)
Looking in YOUR bathroom.
 
Join Date: May 2002
Location: Adelaide
Age: 31
Posts: 3,287
Re: Forced induction, exhaust manifold

There are a few good threads on performanceforums.com regarding exhaust design. One memebr there, 6BOOST has a 554rwhp EB, and has spend many a hour designing, building and dyno testing manafolds. Read up on a few of those threads.


ohhhhhhhh why does bass get a PM Joe and not me :(.........lol jk
__________________
Ive been described as a vault of usless random knowledge.

Ill take it as a complement i think.............
Walkinshaw is offline   Reply With Quote
Old 10-23-2003, 15:49   #5 (permalink)
100 SPEED LIMITED SILVAEA
 
gm dstroya's Avatar
 
Join Date: Nov 2002
Location: gold coast and off playing with 32psi of boost pumping into 4.1lt of pure ohc feralness and developing a 350hp n/a kit for ea-au i6, also making 5.0lt gear soon enuf
Posts: 1,043
Re: Forced induction, exhaust manifold

walky u have pm :p

cheers.joe.
__________________
live in S.E. queensland? bit of a revhead? click here!!--> speedphreaks

1000hp is underway. rods,pistons here!! t88 on its way!!
gm dstroya is offline   Reply With Quote
Old 10-23-2003, 19:13   #6 (permalink)
LET EM' RIPPP
 
Join Date: Mar 2002
Location: Melbourne
Posts: 1,819
Re: Forced induction, exhaust manifold

Thanks Heaps guys.

Joe, You are a CHAMP!
__________________
CAUTION: Slippery When BOOSTING!
Bass Crazy is offline   Reply With Quote
Old 10-29-2003, 05:01   #7 (permalink)
pR()rN_*
 
carazy's Avatar
 
Join Date: Jul 2002
Location: Adelaide,SA Australia
Age: 33
Posts: 1,966
Re: Forced induction, exhaust manifold

Joe if your a champ I need me this dirty PM aswell!!!
Yeah I'd say it's important if you want a good setup.
If you want a nicely drivable smooth turbo then design is important but if you don't car where the power is as long as it's there then no problems.
__________________
Breathe! It's only the internet....
carazy is offline   Reply With Quote
Old 12-05-2003, 03:43   #8 (permalink)
Two SC 61's = trouble
 
ebxr8240's Avatar
 
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 61
Posts: 6,360
Re: Forced induction, exhaust manifold

What may look good as far as n/a goes may not be that good under boost.Ie I would say 3-2-1 X 2 to turbo would be better than 6-1 as the velocity is less at lower engine speeds..
S/C as big as your port atleast as it wont effect low down torque and scavenging isn't an issue like n/a ...
__________________
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
.
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...

Last edited by ebxr8240; 12-07-2003 at 07:05.
ebxr8240 is offline   Reply With Quote
Old 12-10-2003, 22:23   #9 (permalink)
Registered User
 
Join Date: Oct 2003
Location: Melbourne for now. Going O/S
Age: 37
Posts: 91
Re: Forced induction, exhaust manifold

This is a pic of possibly the best manifold i've ever seen in the flesh with one exception, the wastegate outlet is not split pulse. Other than that its a work of art and took MANY hours to complete.

FREE PLUG: Made by Nick @ TurboWorx in Kelior
P.S. Oh and its for a 250 X-flow in a Cortina. Not my manifold.
P.P.S Pics of my manifold (as made by a mate) coming soon.
P.P.P.S Thanks to geordo @ fullboost for the pics aaaaages ago.
Attached Images
File Type: jpg xe_250_manifold.jpg (76.8 KB, 60 views)
File Type: jpg xe_250_manifold2.jpg (77.0 KB, 56 views)
aaron_hogan is offline   Reply With Quote
Old 12-11-2003, 01:42   #10 (permalink)
4.1 XFLOW EFi Turbo
 
xf6250's Avatar
 
Join Date: Oct 2002
Location: South East Melbourne, Victoria
Posts: 1,087
Re: Forced induction, exhaust manifold

aaron_hogan that turbo sits heaps forward doesnt it? that manifold looks tops, i got an A.I.T one for mine that i want to sell down the track and get a custom one made up.
__________________
Same car............new lease on life
500+HP of 250 EFI Turbo............Coming Soon
xf6250 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Exhaust



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Radiant Exhaust, My 2c. Bass Crazy Exhaust 63 11-24-2003 20:50
BA Turbo exhaust manifold compatibility Tickford6 Exhaust 10 06-15-2003 10:54
BA XR6t Exhaust manifold SiX_iN_a_RoW Exhaust 7 05-21-2003 17:05
F150 V6 4X4 To a 5.8 Exhaust Manifold Help BuddyBass Exhaust 0 05-02-2003 20:05
BA Falcon Engine Reveal RPO83 Ford Worldwide News 0 09-04-2002 08:27

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 17:09.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.