Thread: Official Harrop TVS1740 Supercharger Thread
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      01-11-2019, 08:18 PM   #641
jamba
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Drives: M3 E90 Jetblack
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Quote:
Originally Posted by eternallx View Post
Could be slightly lower reading Dyno.
Could be spark plugs? 91oct?
Spark plugs were changed during install of the kit. Running 93-ish octane (mix of 92 + a couple gallons of 100)
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