exhaust manifolds.......disertation project
- Thread starter 59bhp
- Start date
Aga
Member +
Manifold material: Stainless Steel
date of purchase: 2005
Length of time before failure 1 month
type of manifold (tod4, ct9, external wastegated etc): CT9
if it was braced: no
if so then where: Downpipe stock brace
type of exhaust system (downpipe back): stock decat, not braced to the block because the manifold had moved the turbo several mm thus making the correct alignment of bolts impossible. rest exhaust 60mm
pprox max power of engine it was installed on and rpm this occured: 165 hp at 0.8 bar at 7000 rpm
date of purchase: 2005
Length of time before failure 1 month
type of manifold (tod4, ct9, external wastegated etc): CT9
if it was braced: no
if so then where: Downpipe stock brace
type of exhaust system (downpipe back): stock decat, not braced to the block because the manifold had moved the turbo several mm thus making the correct alignment of bolts impossible. rest exhaust 60mm
pprox max power of engine it was installed on and rpm this occured: 165 hp at 0.8 bar at 7000 rpm
hardcoreep
Member +
Cruise
Manifold material: SUS 304
date of purchase: Bout 4 years ago
Length of time before failure: 4 months
mileage on car it was installed on: I'm on my second speedometer
type of manifold: CT9
if it was braced: No
type of exhaust system: Night pager screamer/HKS Hiper
approx max power of engine it was installed: 141whp
Cruise informed me that I needed to have a braced cat which is why i swapped back to my BlitzEX diffuser
UK Spec manifold
Manifold material: Black pipe
date of purchase: 2 years ago
Length of time before failure: 1 month
mileage on car it was installed on: past 300k by then
type of manifold: CT9
type of exhaust system: Blitz/HKS
approx max power of engine it was installed: 124whp
Manifold was poorly made in the UK. It fit like crap and broke at the welds in both the collector and the head exhaust flange.
JAM Racing
Manifold material: Cast
date of purchase: Last year
Length of time before failure: Hasnt failed
mileage on car it was installed on: bout 400k now
type of manifold: CT9/tdo4 with HKS Kyusyu neck adapter
type of exhaust system (downpipe back): Screamer/HKS
approx max power of engine it was installed on: 124whp
I'm going back to a tubular manifold for a back to back test against the JAM cast. I'm waiting on TRD engine mounts which I suspect will help it last longer. Several of my friends have been using JDM stainless steel headers for manifolds. They cut them up and re-weld them into turbo manifolds. They have been having great success with performance and longevity. The downside is that you can't use a CT9.
Manifold material: SUS 304
date of purchase: Bout 4 years ago
Length of time before failure: 4 months
mileage on car it was installed on: I'm on my second speedometer
type of manifold: CT9
if it was braced: No
type of exhaust system: Night pager screamer/HKS Hiper
approx max power of engine it was installed: 141whp
Cruise informed me that I needed to have a braced cat which is why i swapped back to my BlitzEX diffuser
UK Spec manifold
Manifold material: Black pipe
date of purchase: 2 years ago
Length of time before failure: 1 month
mileage on car it was installed on: past 300k by then
type of manifold: CT9
type of exhaust system: Blitz/HKS
approx max power of engine it was installed: 124whp
Manifold was poorly made in the UK. It fit like crap and broke at the welds in both the collector and the head exhaust flange.
JAM Racing
Manifold material: Cast
date of purchase: Last year
Length of time before failure: Hasnt failed
mileage on car it was installed on: bout 400k now
type of manifold: CT9/tdo4 with HKS Kyusyu neck adapter
type of exhaust system (downpipe back): Screamer/HKS
approx max power of engine it was installed on: 124whp
I'm going back to a tubular manifold for a back to back test against the JAM cast. I'm waiting on TRD engine mounts which I suspect will help it last longer. Several of my friends have been using JDM stainless steel headers for manifolds. They cut them up and re-weld them into turbo manifolds. They have been having great success with performance and longevity. The downside is that you can't use a CT9.
Last edited:
Phil
Super Moderator
Manifold material: cast
date of purchase (doesnt have to be hugely accurate): came on the car when i bought it
Length of time before failure (how long it lasted before cracking): hasnt cracked
mileage on car it was installed on: 120000k
type of manifold (tod4, ct9, external wastegated etc) ct9
if it was braced: no
if so then where: -
type of exhaust system (downpipe back): decat/HKS
approx max power of engine it was installed on and rpm this occured: ?something more than standard?
Phil
date of purchase (doesnt have to be hugely accurate): came on the car when i bought it
Length of time before failure (how long it lasted before cracking): hasnt cracked
mileage on car it was installed on: 120000k
type of manifold (tod4, ct9, external wastegated etc) ct9
if it was braced: no
if so then where: -
type of exhaust system (downpipe back): decat/HKS
approx max power of engine it was installed on and rpm this occured: ?something more than standard?
Phil
59bhp
Member +
this is great people its a huge help and you have no idea how important this is to my research,
i know a lot of you wont have replied due to not wanting to upset the people they bought them off so if this is the case pm me,
i promise neither your name or the person your bought it off will be mentioned if you disclose this information as this isnt part of my research im purely interested in the material that its manufactured from.
i know a lot of you wont have replied due to not wanting to upset the people they bought them off so if this is the case pm me,
i promise neither your name or the person your bought it off will be mentioned if you disclose this information as this isnt part of my research im purely interested in the material that its manufactured from.