All Things Mk5 > Performance Modifications

Stage 1 plus hpfp

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pudding:
I think we established this was down to OEM HPFP inconsistencies.  Some engines are fine, others need a pump. 

Mine was fine on Revo 1 when I got the car, and it measured 287bhp on the dyno I always use.  My place then flashed their own Stage 1 onto the ECU and immediately it struggled for fuel, with short term trims pegged at +25%.  Clearly ~290hp was the limit of the OEM pump fitted to my engine.   Stuck a Loba on and it shot up to 310hp immediately and an even bigger midrange torque hike.

In summary, I would say Stg 1 K03 is borderline.  Stg 1 K04, absolutely needs one, or it's half the engine it could be.  I personally wouldn't rely on logging alone, just fit VIS internals and relax in the knowledge there is plenty of fuel.

Lewo:
Food for though cheers.  :happy2:

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