*For questions about rules, contact IFO directly: http://importfaceoff.net/contact.htm
PAYOUTS - $300 - Must have 8 qualifiers for full payout. Less than eight qualifiers will receive half the normal payout. Qualifiers must be capable of running 13.99 and faster.
Winner - $300 ($500 if 16 or more qualifiers)
R/U - $100 ($200 if 16 or more qualifiers)
*trophy payout only if 2 or fewer entries
Heads-Up, Pro-tree (.400) class for F/R/AWD import brand/sport compact vehicles with full interior, exhaust, and current tags/registration. Sport Compacts include any FWD or AWD 4 cyl. *Domestic badged Import vehicles permitted, ex. Eagle Talon, Dodge Stealth, etc. Power adders allowed. Two qualifying passes permitted. AMP cars may compete in FIS.
Import or sport compact car bodies allowed. Current tags and registration required. One piece front ends prohibited. Bumpers can not be removed. No excessive cutting allowed for weight reduction or wheel clearance purposes (cutting for aero only OK). Tail lights and head lights required (one may be removed for induction purposes). 3 piece (widened) front ends OK. Non-factory glass/lexan windows prohibited unless needed for safety requirements (cage through rear).
Doors must open and close from inside and outside the vehicle. No center drive configurations. All seats (front and back), door panels, dash, and carpet (front and back) must remain inside vehicle.
CHASSIS AND SUSPENSION
Full tube chassis prohibited. No center-drive systems. Wheelie bars are prohibited.
4 and 6 cylinder 2 or 3 rotorengines allowed. 10 or 12 cylinders must be naturally aspirated import brand. 8 cyl Import manufacturer motors allowed to run n20 only, supercharger only,orstock/unmodified turbo configuration only. Domestic sportcompact cars limited to FWD, 4 cylinder only. Out of manufacture engine swaps permitted.
Turbochargers: 62.9 mm single turbo limit for 1.8L 4cyl and above FWD vehicles on slicks (67.9mm single turbo limit for 1.6L 4 cyl) - 62.9 mm single turbo limit for 4cyl AWD auto vehicles - 64.9 mm turbo limit for AWD manual vehicles - 62.9 mm turbo limit for 4 cyl motor swapped RWD vehicles - 64.9 mm turbo limit for AWD manual vehicles - 64.9 mm turbo limit for 6 cyl motor swapped RWD vehicles (ex. 2JZ/240sx) - 64.9 mm turbo limit for FWD 6 cyl vehicles - 67.9mm turbo limit for FWD vehicles on DOT tires - 67.9mm turbo limit for DC5, BB6 chassis plus 7th gen and later Civic bodies - 67.9mm turbo limit for original chassis/motor RWD vehicles (Supras) - 47.9mm limit for twin turbo setups except 3.8L 6 cyl motors limited to stock twins (twins may be modified, but completely stock turbo housing rqd). Superchargers, and Nitrous Oxide Systems allowed. Vehicles limited to one out of manufacturer power adder type. Turbo measured at inducer. (*updated 11/20/18)
DRIVETRAIN AND TRANSMISSION
FWD, AWD, or RWD allowed. Stock driveline configuration must remain. Aftermarket straight axles prohibited.
Open exhaust/header prohibited. Turbo or muffler rqd. Hood or Fendor exit ok. *Updated 12/16/16
Slicks permitted for FWD only (limit 25). Front and rear DOT approved tires required for AWD. Rear DOT approved tires required for RWD vehicles. *updated 11/14/13
*OIL CONTAINMENT RULING STARTING IN 2017
Highly modified, non-factory setup vehicles (determined at IFO staff's discretion) 11.49 and faster required to have oil containment device (pan or diaper). Racers lacking oil containment device when required may still race at IFO staff's discretion with $100 track clean up deposit. Deposit returned to racer at end of event pending no oil down. Catch pan should cover entire area below engine/transmission with 2 inch high lips on all sides. Lips should to be covered or curved inward. If a competitor spills excessive oil onto the track, he or she may be disqualified from racing at the discretion of IFO/track staff.
***If someone in your class is not within the rules, immediately ask for IFO staff to protest. Once your vehicle is staged, you accept all conditions of the race.
***Contestants may be disqualified from an event or bannedfrom the series at the discretion of IFO staff for any one of the following reasons including, but not limited to 1) breaking rules 2) excessive oil downs 3) playing excessively loud music with explicit lyrics 4) bad sportsmanship 5) illegitimate protests against opponents who are not breaking rules 6) verbal abuse of event staff 7) disrespect/personal attacks towards the IFO series, track host, and/or fellow contestants.