last week I drove 6hrs down near salisbury to help Abi fit her imported Impul supercharger onto her K12
here's the Impul CR-01 compressor kit
I noticed it had drain & fill plugs, it was dry inside. ah it needs oil for the gears inside but what type? PAS, ATF, engine, gear?
they had some spare gear oil and considering it's just to keep them cogs lubed similar to inside of a gearbox, it should work ok and better than no oil.
info plate
manifold
this is the controller for actuating the superchargers electromagnetic coupling clutch
inside is simply a switch for the clutch
which is triggered on/off by manifold pressure (inbetween the TB & compressor) interacting with these two adjustable springs.
- during high vacuum / low load / idling, the switch disconnects the compressor from the pulleys via the electromagnetic clutch to reduce wear, prevent the extra load from stalling the engine rpm, maintain idle control.
- above a threshold pressure / high load / open throttle, the switch engages the coupling clutch, allowing the pulleys to spin the compressor and create boost.
got afew missing bolts and checked the kit was complete
removed the intake & fuel rail
lifted the car to drain the coolant
the engine mount bracket fouled the setup so it needed cutting
cut away the obstruction
now it doesn't foul the pulley or fuel rail
busy at work through the long cold nights
the new auxilary belt tensioner (right) features an extra pulley used to drive the supercharger
this supercharger kit has got to be one of the hardest & frustrating thing I've recently fitted.
there are so many poorly thought out, blind & almost impossible to access bolts where I had to remove the coolant pipe & starter motor & loom underneath to gain better reach
then there's the issue of being supplied the wrong belt length. the 4pk600 belt was too short, the nearest size up eurocarparts had in stock was 710, which was way too long
the water pump belt from jonnys K11 was 648 but even that one was just too long
went back and got a 5pk628 which I had to cut the extra groove off and void return, but argh it was a fraction too short
I had work the next day and the 4pk640 belt we need to order won't come till next week so it'll have to wait another time.
installed the fuel rail
manifold & controller
we started it up to check it still runs but now it has a serious misfire and sounds like a VW beetle, not good.
unplugging each injector & coilpack affected the idle except for injector #4, so it seems that injector is faulty.
I removed the spark plugs and yup 1-3 are all sooty during cold start except for #4 which is all clean, clear & dry so no fuel was injected.
I'll be returning back in few days to replace the injectors & finish wiring the controller.
