We have been looking at creating a hybrid K04 turbo upgrade that will be able to produce around 320-340bhp and we believe we have found it!
The turbos specifications have been decided, the turbo has been built and now waiting to be fitted to a demo car next week to prove the expected gains with a standard manifold and then with our tubular collected manifold design.
We expect this turbo to be capable of up to a 2.0bar spike and hold 1.4bar across the rev range.
Here are a few of the JBS05 specs:
Modified compressor housing inlet
C.N.C re-profiled compressor cover for high flow
350bhp capable “billet” custom compressor wheel
Modified seal plate
360 degree performance thrust bearing
Hybrid K04 large trim left hand thread turbine wheel
Lightening and balancing of turbine wheel for faster ‘spool up’
Modified turbine housing
Up-rated twin turbine seals
Cryogenically treated components
10psi wategate actuator set up with the option to upgrade
We will be offering these turbos as an exchange basis or as outright new turbos. The prices of exchange and new units are yet to be confirmed.
I will post up an update of performance figures/Rolling Road graphs with our JBS05 turbo fitted with a standard and JBS tubular collected manifolds.