Xspower/relentless ko3 manifold any thoughts or reviews on this?
We known the main problem with the KKK turbos is that they are tiny turbine housing. Cranking up the boost raises EGT's, exhaust back pressures, IAT's.
Ko3 and ko4 turbine inlets are 41mm,
An area of 1320 mm squared
This is 62% of a T25 inlet and we ask for similar flow.
The ko4 has enough meat to be ported to 47mm with some manifolds which is 1735 mm squared, a big improvement.
The best we can do for heat management with our little turbines is a better flowing manifold and a big downpipe.
There's not enough meat to port a ko3 turbine inlet so we're left with high heat. All the aftermarket ko3 manifolds have previouslt quickly cracked due to these restrictions so we were limited to a ported stock ko3 manifold.
Xs power/relentless seem to have improved recently and their pro4 manifold seems reliable (so far).
They also have a ko3 offering, which has been revised so you can actually fit bolts in which is nice of them, lol.
Anyone else taking a punt on this to get the most from a ko3 or is the consensus to stick with a ported stock manifold?
And yes we know to bin the crappy gaskets tbey provide with it.
The video below shows it getting a bit hot, they offer it ceramic coated too but I don't know if it helps or is just a gimmick.
(Dyno pic and video are Bills from FB/youtube)
3" turbo back, decat, 386cc injectors, 80mm maf, Sfs tip, cone filter, wellycooler relentless k03 manifold 144k mile engine, no meth injection
Highest no meth enhanced ko3s on Bills dyno if I'm not mistaken.
Video of the manifold glowing
We known the main problem with the KKK turbos is that they are tiny turbine housing. Cranking up the boost raises EGT's, exhaust back pressures, IAT's.
Ko3 and ko4 turbine inlets are 41mm,
An area of 1320 mm squared
This is 62% of a T25 inlet and we ask for similar flow.
The ko4 has enough meat to be ported to 47mm with some manifolds which is 1735 mm squared, a big improvement.
The best we can do for heat management with our little turbines is a better flowing manifold and a big downpipe.
There's not enough meat to port a ko3 turbine inlet so we're left with high heat. All the aftermarket ko3 manifolds have previouslt quickly cracked due to these restrictions so we were limited to a ported stock ko3 manifold.
Xs power/relentless seem to have improved recently and their pro4 manifold seems reliable (so far).
They also have a ko3 offering, which has been revised so you can actually fit bolts in which is nice of them, lol.
Anyone else taking a punt on this to get the most from a ko3 or is the consensus to stick with a ported stock manifold?
And yes we know to bin the crappy gaskets tbey provide with it.
The video below shows it getting a bit hot, they offer it ceramic coated too but I don't know if it helps or is just a gimmick.
(Dyno pic and video are Bills from FB/youtube)
3" turbo back, decat, 386cc injectors, 80mm maf, Sfs tip, cone filter, wellycooler relentless k03 manifold 144k mile engine, no meth injection
Highest no meth enhanced ko3s on Bills dyno if I'm not mistaken.
Video of the manifold glowing
