[b]2010 Midstates Invitational Classes and Rules[/b]
***The race on July 24, 2010 in St. Paul, NE is cosponsored by Custer County Mud Draggers and will allow two exemptions to our normal rules. They are in the Sportsman and Super Stock Classes. Those exemptions are indicated by *** and are for this race only. All other rules still apply as indicated below.
Street Rod
TIRES
-33" maximum Boggers other sizes and treads at techs discretion must be DOT tire
-No cutting or grooving.
ENGINE
-Gasoline only - No strokers allowed. Pump gas no Diesels.
-Factory OEM ignition only.
-Small block engines only - No trans brakes.
-No AFTERMARKET fuel injection.
-Intake manifold must be dual plain single carb, No air gaps.
-Carb swaps allowed.
-Headers allowed, must have exhaust with mufflers past the cab.
-Must run a steady 17 inches of engine manifold vacuum (minimum) at 800 RPM's for 30 seconds. No vacuum pumps or equipment that will produce vacuum. .
-No solid cams, roller rockers ok.
-No after market heads or performance heads that were not offered on production vehicles
BODY
-Complete body required, corp. matching, make and model.
-Complete bumpers front and rear.
-Body and interior must be completely intact.
-FRAME & SUSPENSION
-Must be factory suspension - NO swaps allowed
-No axle swaps
Safety
-must have Dot helment
-Helment must be strapped
Sportsman
Tires
-34'' maximum DOT tire
[b]*** 35” maximum DOT tire for the St. Paul race only[/b]
-size is measured by what is printed on the tire
-No cutting or grooving
Engine
-Max CID 557
-Must be corporate matching
-No aluminum or after market heads
-Heads must be a factory production iron head
-Aluminum intake manifold allowed, must be dual plain, no air gaps for BIG BLOCK, Small Block may run any style of single 4bbl intake manifold
-Single four barrel carburetor allowed
-No nitrous or alcohol
-No after-market fuel injection
-Must pull 17" of Vacuum @1000 rpm Big Block, 15'' @1000rpm for Small Bock
-Must be naturally aspirated
-Aftermarket ignition allowed
-Open headers are allowed, No verticals
-Stall converters allowed, No trans brake
-No after-market or performance blocks allowed
Body & Suspension
-radiator must be in stock location
-body must be corporate matching
-No cutting or gutting of body or interior
-No more than 6'' of total lift.
-must have factory like front bumper, rear optional
-must have bench seat or two buckets
-must be street legal, lights and brakes in working order
-Flat beds must support 500lbs. at any point and be standard width & length for that body being used
-No traction control devices, i.e. ladder bars & ect.
-posi-traction differentials allowed
-Driveshaft loops on pinion side of both driveshafts
-Factory V8 midsize vehicles (i.e dakota, explorer, ect.) Must be Small Blocks
Safety
-must wear seat belts and DOT helmet
-helmet must be strapped
-NO riders
-Fire Extinguisher required
Super Stock
Tires
-40'' maximum DOT tire
-size is measured by what is printed on the tire
-NO cutting or grooving
[b]*** Cutting and Grooving will be allowed on the Rear Tires for the St. Paul race only.[/b]
Engine
-Max CID 600
-No aluminum heads
-must have cast iron heads, after market allowed
-must have single carburetor
-must pull 14'' of vacuum for big block at 1000rpm 12'' for small block
-must be corporate matching
-open headers are allowed, vertical exit allowed
-any ignition system
-must be naturally aspirated
-must run on gas or diesel E85 ok
-No after market fuel injection
-No nitrous or alcohol
-stall converters are allowed no trans-brake
-after-market blocks allowed but must be cast iron factory production deck height & bore spacing
-No vacuum pumps
Body & Suspension
-exterior of body must be complete and corporate matching
-Flat beds must support 500lbs. at any point and be standard width & length for that body being used
-Factory appearing fiberglass front clips, hoods and fenders will be allowed in SS. No offroad/prerunner stuff.
-rear mounted radiator allowed
-trimming fenders to accommodate large tires allowed
-interior dash removal allowed
-one race seat allowed
-No small pickups/midsize 4x4 with V8 unless it came from factory must retain small block
-minimum of 3 leaf rear suspension
-oem suspension
-must run transfer case
-full size body swaps allowed
-axle swaps allowed (corporate matching does not apply on axles)
-traction bars allowed
-engine & body must be in factory location
-must retain brakes on all four wheels
Safety
-Trans Shield or blanket & flywheel/flex plate protection Required
-must wear seat belts and DOT helmet
-helmet must be strapped
-No riders
-Must have drive shaft loops, minimum 1 per shaft of rigid construction at the pinions of the axles
-Roll-over protection 4 points to the frame (in the box OK), mandatory for the full race pickup, street legal pickup optional
-Fire Extinguisher Required
Modified
Tires
-any size with DOT stamp
-cutting and grooving allowed
Engine
-gas or alcohol allowed
-No nitrous, bottle must be removed
-must be naturally aspirated
-after-market blocks allowed but must be factory production deck height & bore spacing
Body & Suspension
-Must have a factory frame, must maintain at least two original unmodified cross members and be factory width.
-any safely constructed suspension allowed
-engine must be located within 6'' from the front of the head to the center line of the front axle
-body must resemble oem appearance
-Must use oe cab
Safety
-must have drivers side windshield protection or full face helment
-chain drive must have shield
-must have at least 4 points to the frame of roll over protection inside the cab (halo style)
-must have drive shaft loops, 2 on each shaft with u-joint scatter protection
-must have box sides or flat bed
-must have transmission blanket or shield SFI approved & flywheel/flex plate protection
-must have race seat and 4 point harness
-must have DOT helmet
-helmet must be strapped
-must have rear kill switch that is very accessible and kills all electrical power to the vehicle
-No riders
-if you run alcohol you must have fire suit
-Fire Extinguisher Required
Unlimited/Open
Tires - any tire
Engine - any engine
Body & Suspension - any safely constructed vehicle allowed
Safety
-all modified safety rules apply
Other
-No snowmobiles or ATVs
-Fire Extinguisher Required
Any restriction in any class pertains to the lower class (unless specified)
-Must be 4X4 Vehicle
Safety rules for all classes
-must have DOT helmet (No Exception)
-must have working seat belt
-must have rear and front tow hooks
-must have a drivers license
-fuel supply and batteries must be safely secured in place
-No driving while intoxicated
-techs decision is final on any issues that concerns safety
-good working brakes
Nitromethane is NOT allowed in any class
