Quote:
Originally Posted by Beedub
i run race gas in mine, always have since day one, Re the plugs ess specifically told me not to stray from the stock plugs.... considering this is probably one of the most used s54 Fi kits our their id lean to their advise personally.... drop ess a line and ask them their advise and post up the answer.... it would be great to know once and for all....... after all, it would be no skin off their nose to supply new plugs charge us for the privilage and make money on the extra components.... my guess is they really aren't needed........
im back on track in a few weeks, again from 10am to 4pm, the car does countless laps, and never ever misses a beat, its usually in 24 deg C + heat as well..... its a really hard day on the car, one thing thats always been consistent is the performance of the car and the ess kit....
really sorry for having issues with yours gmd....
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Beedub in regards to the plugs just do a quick search of E46 M3 guys with FI at 500hp and above and what plugs they use. Also VF, AA , VAC ,Bimmerworld etc. and pretty much every other manufacturer recommends colder plugs for our boost level on the S54. With the stock plugs
you ARE going to loose power in the upper rpm range because of knock especially on track. The bottom line is I drive my car a bit harder than most and you really can't compare European conditions to the Southern US in the summer. And 24 degrees Celsius is frigging winter here
. This past day where i had temp issues you would have as well I guarantee it. It was 95 degrees F (35 C) and 85% humidity. Oil temps were up into the 255 range in only 3 minutes of track driving with water temps in the red. Our ECU's are extremely sensitive to oil and water temps , race gas or no. Also we do have different kits so I'm just letting people know what needs to be done to get a 525 car reliable on track ideally with 93 octane in my corner of the world. Honestly I wish i had just upgraded my fuel pump in the VT-1 set up i had at this point bc it was a killer on track with my M6 custom oil cooler and damn reliable too. I dream of the good old days when i'd have a limp every two track days not every two laps . The good news is I've gotten really slick at cutting the car off and restarting it at 140 mph
