my journey so far with 
fatty boom boom e39 M5 S62B50...••
1:50.1 as is with 3.1 final drive••
1:49.3 with 3.6 final drive••
1:48.7 with weight reduction••
1:47.8 with rear 30mm space out•• i managed to solved the tail happy issue by pushing the rear further you and put grippier tyres at the back and toe in... maybe abit too much understeer now (will dial it back)•• i still have problems with:••
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1. leaking brake booster (you can hear the air hissing sound for the video).••
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2. high temperature... even after i install oil cooler, and bigger radiator, the temp still went up to 3/4 after just one hot lap. ••
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3. stock m5 brake starting to feel inadequate, will put cengek 6 pot in this car.••
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4. misfiring issue on some corners... need remap••
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@silasbonar46 @motorsoul.indo
#bmw #e39 #e39m5 #s62 #s62b50 #m5 #5series #bmwe39 #e39fanatics #bmwclub @e39indonesia