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BODY & GLASS
* Must have working lights, stock appearing interior, carpet, door panels, factory style dash, stock floor pans, stock firewall.
-No body components, bumper add-ons, etc. permitted with the intent of increasing the distance of the front bumper for the purposes of breaking the infrared beams (i.e. no “extenders”)
TIRE
* 26x8.5x15
* 235x60x15 Only tire approved #3752R
SUSPENSION
* No wheelie bars.
* All vehicles must retain the factory frame rails. Notching for rear tire clearance is permitted.
* Stock suspension or ladders bars only
*coilovers ok
POWER ADDERS
* Single type power adder only.
NITROUS
* No multiple stages permitted.Second kit must be removed
* No progressive controllers or controlling nos flow electronically in any way.
* All nitrous solenoid grounds must be grounded in engine compartment and visible. ( in plain sight)
*Only 1 nitrous bottle allowed in car at a time.
* No pusher systems. (Ex. Nano)
* No chiller systems
* No "leaking" nitrous in any way in any location.
* Purge plume must be entirely outside of the engine bay and directed upward.
* Big Block Nitrous entries maximum jetting
1 jet .076
2 jets .048
*Small Block Nitrous entries maximum jetting
1 jet - .082
2 jets - .057
FORCED INDUCTION
* No billet wheels allowed
* Max turbo size 76mm measured tip to tip. (no reducers allowed to achieve this size and no clipped wheels)
* You may be required at any time to remove your turbo and/or your turbo cover to be checked.
* Maximum supercharger sizes D1, V-7 JT Trim, NOVI 2000, Kenny Bell 3.6
YSI, F1A and F1C allowed with weight
* No gear drives
* Air to water, Air to air intercooler OR water meth injection allowed. Can only run 1 style intercooler
* A single line from the manifold to the wastegate only
* Nothing else to top of wastegate or blow off valve
EXHAUST
* Mufflers required on all entries except turbo cars.
CYLINDER HEAD / ENGINE INDUCTION
* Big block OE passenger car block.
* Big blocks limited to stock valve angle. Call or PM for approved heads.
* Cylinder heads for SB limited to, 23 degree Chevrolet, 15 degree LS, 18 degree Mopar, 20 degree Ford, OEM Ford casting 4v Modular, any 2v Modular, Trick Flow Twisted Wedge and LS 13.5 OK
* All cylinder heads must maintain the automobile OEM intake manifold bolt pattern.
* Sheet metal or tunnel ram intakes manifolds not permitted.
* Single carb or throttle body
FUEL
* Gasoline or E85 are the only fuels permitted.Methanol only allowed in a 50/50 mix with water and is considered an intercooler.
ELECTRONICS
* Any ignition or EFI permitted.
* No traction control devices of ANY kind.
* No progressive nitrous controllers allowed.
* No boost controllers allowed. Solenoids must be removed from car
* No digiset on any combo
* All controllers must be removed from car.
BASE WEIGHTS
* SB naturally aspirated - 2800
* SB nitrous - 8.2 deck or modular 3050
* SB nitrous - 3100 see bottom for weights
* SB turbo - 3300
* 6 Cyl turbo - 3250
* SB & 6cyl supercharged - 3100
* SB F1A 3250
* SB YSI and F1C - 3350
* BB NA 3050
* BB nitrous 3300 No Deductions
* No Awd or Fwd vehicles
WEIGHT PENALTIES AND DEDUCTIONS
* Deduct 50lbs for 235 radial (any combo can take weight break)
* Deduct 50lbs for SBC and SBF Stockblock. No deductions for Mod and LS Stockblock
* Deduct 50lbs with a true 4150 carburetor only.
* 4150 based throttle body not eligible for weight break
* Deduct 50lbs for 6AL or equivalent box with no add ons
* Add 50lbs for BBF A head
* Add 50lbs for All* SB Highport, Ford TFS-R, TFS Highport No deductions
* Add 100 lbs for All SB Nitrous 20 degree high port SR20 –FT1 or T1RI or equivalent and SBC Nitrous 18* and 23* raised runner heads.No deductions and no turbo/ supercharger combos with these heads
With all the new heads that are coming out, we will look at them and adjust periodically.
Engine diapers are mandatory
ANYONE caught cheating will be banned from all XOS events
Xtreme Outlaw Series reserves the right: If one combo has a significant advantage ,we will look at the rules and adjust them accordingly.
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