Lucas Oil 2018 Rule Changes

Check out this years rule changes on the Propulling link below. http://propulling.com/images/pdf/2018/2018-Rule-Changes.pdf

2018 Rule Changes

Contest Procedure#8 Change- The first puller in the class will have the option of test puller. The test puller may accept their distance, come immediately back, drop five positions, or last. Track official must be informed of decision before leaving the track.

Super Modified 2WD Add Rule #21 Drawbar top adjuster to accommodate a zip-tie for attachment to rigid bracket. See photo and diagram below: Hot Rod Semi #6 Change – Electronic fuel injection permitted. Limited Pro Diesel 4x4 Clarification #1 Maximum weight 8000# (Dry weight 7900# for ice allowance at scales.

Change #3 The body must be OEM truck body, including the complete floor pan and must retain complete OEM firewall. Bed must be covered. No flatbeds permitted. The body must retain full sheet metal, aftermarket steel hoods are permitted. The hood must be closed and securely latched while hooked to the sled.

Limited Pro Stock Tractors Update- #8 Maximum size injection pump is a P-7100 series pump allowed (2-5/8”W X 9-9/16” L X 8- 3/16”H main pump body) only one plunger per cylinder. No billet housings.

Hot Farm Tractors Change #4 No cooling devices of any kind permitted. No ice on tractor during competition.

Update- #5 510 cubic inch limit (+ or – 1 percent). Maximum of 8 cylinders permitted. Two valve cylinder heads only. (OEM or stock replacement head for make and model). 6. Turbos 6A. Intake – 3.00” inlet, Map width enhancement is allowed. Maximum map width .200”. MWE groove must be inside neck area where intake covered is measured at 3.00”. Compressor wheel must protrude into three inch bore. Intake housing to be no larger than three inches at the face of the wheel. 6B –Exhaust- 3.50” exhaust housing maximum. All turbine wheel blades protrude into exhaust housing bore. All air must exit through exhaust housing opening. No map width enhancements on exhaust housing permitted. Turbine wheel exhaust blade clearance maximum from exhaust housing, 0.060”. (intent - No cone shaped wheels) Turbine housing to be no larger than 3.50” inches at intersection of turbine wheel face and tip diameter. No waste gates will be permitted. No variable geometric turbos permitted.

Update- #8. Largest fuel injection pump allowed will be a P-8600 pump with only one plunger per cylinder.

Pro-Street Diesel TrucksUpdate #2 OEM Chassis is mandatory. The vehicle must retain the full OEM chassis. Wheel tubs, back half conversions and tube chassis are prohibited. Lengthening of frame allowed up to 158”. Longer trucks (158”-172”) must maintain OEM measurements for body being used.

Update #4 Maximum cubic inch 460. Engine must be in OEM locations for the body used. No aftermarket blocks permitted. Engine must have 3/8 cable surrounding #1 and #2 cylinders and must pass through the manifolds. 2 cables at splice with 4-6 inches of slack. Clarification #5 No individual runner intake manifolds permitted. Side draft and aftermarket intake manifolds are allowed.

Add #6a Safety hitch mounted 12 inches below primary drawbar. Minimum 3/8” thick.

Update #16 OEM rear and front ends required and in OEM location. Must have come in a one ton or smaller vehicle.

Update #27 Air to air intercooler only. No ice or water permitted truck during competition.

Modified 4x4 Truck Update/Add #21 No digital, microprocessor, computer, or programmable ignition controls. No traction control ignition accessories. No six shooter, power grid systems or similar type ignition controls. (Starter saver allowed)