Re: billet flywheel ?
Yep, look in your NHRA or IHRA rule books and you should see a SFI quick chart. Those are the most basic requirements based on your ET/MPH (for drag racing). The number, for example SFI 6.1, refers to an actual specification that details the testing procedure and acceptance criteria for the item.
"SFI....don't go down the track without it."
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Jeff Chambers
1990 Mustang GT 10.032 Seconds / 137.5 MPH
14-time Street Warrior World Record Setter
CRT Performance
2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH
2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2
"There's nothing boring about a small block automatic shifting gears at 9400 rpm!"
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