JBS K04 cast manifold in development.

[Hurdy]

JBS are developing a K04 cast manifold....

http://uk-mkivs.net/forums/t/269874.aspx

They have already developed a K03 cast manifold and ....so far...have had good results from testing...

http://uk-mkivs.net/forums/t/219683.aspx

I have a few questions for any engine guru's out there.

If the K04 manifold could produce similar results as the K03 version (50% flow increase), how much benefit would you possibly see in terms of power output?

Could it simply be that a K04 manifold strapped to a modified ED30 would simply mean that it wouldn't suffer from heatsoak as much?

Any other benefits?

[bacillus]

iirc that manifold is for the mk4

[chungster]

yup, they even posted a pic comparing it to the normal manifold with "BAM" on it, which was the 1.8T 225ps motor.

No point for our engines, as the manifold / turbo are integrated / 1 piece. The old style was seperate so designing a more efficient exhaust manifold for the turbo was beneficial.

[RedRobin]

No point for our engines, as the manifold / turbo are integrated / 1 piece. The old style was seperate so designing a more efficient exhaust manifold for the turbo was beneficial.

^ K03 turbo integrated with manifold on Mk5 (mine!) ^

[Hurdy]

Well, you learn something new every day. 

[neg]

Looks like they have moved away from the equal length one then... not that it fit so I'll keep stum 

[bennylenny88]

is there any part of your car that isnt touched RR?

[chungster]

is there any part of your car that isnt touched RR?

RR needed a replacement turbo due to a slight crack losing him precious boost and bhp.

[RedRobin]

is there any part of your car that isnt touched RR?

RR needed a replacement turbo due to a slight crack losing him precious boost and bhp.

^ Crack in the manifold casting of the turbo wastegate ^

Linky : - Troubleshooting a Boost Leak....