Pro Mod

OUTLAW PRO MOD Presented by CARMACK ENGINEERING:

CLASS DESIGNATION: Car number must be on all four sides of the vehicle, class designation of PM needs to be on
driver side and windshield as well.

RACE PROCEDURES: Pro Modified is run on a .400 professional tree. Entries are qualified by quickest to slowest elapsed time, field is set with a Professional Pairing Ladder, directly out of the Compulink Timing System. 16 Car Qualified Field.

WEIGHTS – NITROUS OXIDE:

• 960 Cubic Inch Maximum –2,400 lbs.
• 900-910 Cubic Inch Maximum –2,350 lbs.
• Less than 900 Cubic Inch –2,300 lbs.

WEIGHTS – CENTRIFUGAL SUPERCHARGER:

• BB Centrifugal Supercharger (526 CID) (No Lock-Up) –2,550 lbs.
• BB Centrifugal Supercharger (526 CID) (With Lock-Up) –2,600 lbs.
• Diesel Centrifugal Supercharger (521 CID) –2,500 lbs. Roots Supercharger
• SB Roots Supercharger –2,350 lbs.
• BB Roots Supercharger(526 CID) (No Lock-Up, 3 Speed or Less) –2,450 lbs.
• BB Roots Supercharger (526 CID) (With Lock-Up) –2,500 lbs.

WEIGHTS – SCREW SUPERCHARGER:

• SB Screw Supercharger –2,500 lbs.
• BB Screw Supercharger (526 CID Maximum) (C-Rotor) (Maximum 92% Overdrive) (No Lock-Up)-2,600lbs.
• BB Screw Supercharger (526 CID Maximum) (C-Rotor) (Maximum 92% Overdrive) (With Lock-Up) –2,675lbs.

WEIGHTS – WHIPPLE SUPERCHARGER:

• BB Whipple Supercharger A980 (526 CID Maximum) (Maximum 75% Overdrive) (No Lock-Up)-2,400lbs.
• BB Whipple Supercharger A980 (526 CID Maximum) (Maximum 92% Overdrive) (No Lock-Up)-2,450lbs.
  (Add 50lbs lock-Up Transmissions)

WEIGHTS – TURBOCHARGER:

• SB Single Turbocharger (118mm, lock-up permitted) –2,150 lbs.
• BB Single Turbocharger (118mm, lock-up permitted) –2,450 lbs.
• SB Twin Turbocharger (88mm, lock-up permitted) –2,200 lbs.
• SB Twin Turbocharger (94mm, lock-up permitted) –2,250 lbs.
• BB Twin Turbocharger (526 CID) (88mm, no lock-up) –2,500 lbs.
• BB Twin Turbocharger (526 CID) (88mm, with lock-up) –2,550 lbs.
• BB Twin Turbocharger (526 CID) (94mm, no lock-up) –2,600 lbs.
• BB Twin Turbocharger (526 CID) (94mm, with lock-up) –2,650 lbs.
• Diesel Twin Turbocharger (88mm, 521 CID) –2,500 lbs.4 Cyl./6 Cyl.
• 4-Cylinder (Any Turbo Size) –2,000 lbs.
• 6-Cylinder (Any Turbo Size) –2,100 lbs.

WEIGHT ADDITIONS/REDUCTIONS:

• Add 25 lbs. on Base for 527-548 Max CID on any engine combination.
• Add 50 lbs. on Base for 549-599 Max CID on any centrifugal combination only.
• Add 25 lbs. for BB with Transmission with four (4) or more forward gears.
• Deduct 25 lbs. for 136mm centrifugal supercharger.
• Weight adders do not apply to any diesel combinations
• Bias Ply Tires to only be used in competition (NO RADIAL TIRES)