Neshol
Member
Registered: 10th Jul 02
Location: Midlands
User status: Offline
|
Which design of manifold is better, a 4-1 or a 4-2-1? Cheers 
|
modded_corsa
Member
Registered: 9th May 03
Location: Middlesbrough
User status: Offline
|
not sure but:
4 - 2 - 1 promotes better performance (increase flow of spent exhaust gases)
|
Neshol
Member
Registered: 10th Jul 02
Location: Midlands
User status: Offline
|
Don't some Corsa's have a 4-2-1 design as standard?
|
modded_corsa
Member
Registered: 9th May 03
Location: Middlesbrough
User status: Offline
|
dunno but am pretty sure on most N/A engines/cars have 4 - 1 manifolds
|
Daimo B
Member
Registered: 20th Mar 00
User status: Offline
|
A standard 4-2-1 manifold isn't anywhere near the same design as an aftermarket 4-2-1 manifold. 4 goes straight into 2 which evenutally joins into 1.
|
Neshol
Member
Registered: 10th Jul 02
Location: Midlands
User status: Offline
|
What about this?
http://mig2.lathwood.co.uk/r.php?d=m&f=manifold1.jpg
[Edited on 26-11-2003 by Neshol]
[Edited on 26-11-2003 by Neshol]
|
broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
|
thats a 4-1 a 4-2-1 is the best one to get
|
DangerousDave16v
Member
Registered: 20th Feb 03
User status: Offline
|
A 4-1 is a manufacturing compromise, (its cheaper) whereas if you look at a performance engine it'll prob be 4-2-1.
its about coincidence of pressure waves.
|
Neshol
Member
Registered: 10th Jul 02
Location: Midlands
User status: Offline
|
Ok thanks mate 
|
