Hickory Motor Speedway Rules Addendums 2017

 

6/20/17 Hickory Motor Speedway Rule Addendums  

2017 Late Model Stock Rules

Weights (minimum) (total/right side):

1  Built Chevy and Ford – 3100 lbs Overall 1375 Right Side

2  Chevy 604 Crate – 3100 lbs Overall 1375 Right Side

3  Ford 347SR - 3100 lbs Overall 1390 Right Side

4 Chevy 603 Crate - 3000 lbs Overall 1350 Right Side

5  HMS Enforcer (Harrington Spec) - 3100 lbs Overall 1390 Right Side  

2017 Limited Late Model Stock Rules                

OVERALL CAR WEIGHT (minimums) (total/right side):

1  Chevy ZZ4/603 and Ford 347JR engine: 3100 /1375 lbs with driver.

2  Chevy 8604 Crate engine: 3100/1390 lbs with driver

3 Ford D347SR engine: 3100/1400 lbs with driver

4  Hickory little engine: 3000/1350 lbs. with driver. (3050/1375 with 500 gram pistons).

5  Late Model Stock engine: 3100/1400 lbs with driver.

6  8602 Crate engine 3050/1350 lbs with driver.

7  HMS Enforcer (Harrington Spec) 3100/ 1400 lbs with driver  

2017 SUPER TRUCKS RULES  

WEIGHT (minimums) (total/right side)

1  Chevy ZZ4/603 and Ford 347JR engine: 2850 /1250 lbs with driver.

2  Chevy 8604 Crate engine: 2850/1250 lbs with driver

3  Ford D347SR engine: 2850/ 1265 lbs with driver

4  Late Model Stock engine: 2850/ 1265 lbs with driver.

5  HMS Enforcer (Harrington Spec) 2850/ 1265 lbs with driver  

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2017 Limited Late Model Stock Rules

ZZ4 Crate Motor (PN# 88958603)

  1. Valves springs must be stock for ZZ4 engine (No Aftermarket Springs).
  2. Optional: GM 604 “Beehive” type valve springs may be used but must remain as specified in the GM Performance Parts Circle Track Engine Technical Manual (No Aftermarket Springs). Shimming will be permitted to maintain 1.78" installed height as per GM Performance parts Circle Track Engine Technical manual.
  3. Rockers Arm must be stock for ZZ4 engine.

9. A one piece open hole solid aluminum carburetor spacer, a maximum 1” in thickness, may be used between the intake manifold and the carburetor. The spacer must be centered on the intake manifold with a single open hole which must be cut perpendicular with the base of the carburetor. Taper, bevels, or any other modifications will not be permitted. 

  1. A one piece, one hole paper gasket. Maximum .065” thickness that matches the exterior dimensions of the carburetor throttle base plate must be installed between the carburetor and spacer. A one piece paper gasket maximum .065” thickness must be installed between the spacer and the intake manifold. The gasket must not be larger than the top of the intake.

M-6007-S347JR Crate Engine

4. A one piece open hole solid aluminum carburetor spacer, a maximum 1” in thickness, may be used between the intake manifold and the carburetor. The spacer must be centered on the intake manifold with a single open hole which must be cut perpendicular with the base of the carburetor. Taper, bevels, or any other modifications will not be permitted. 

  1. A one piece, one hole paper gasket. Maximum .065” thickness that matches the exterior dimensions of the carburetor throttle base plate must be installed between the carburetor and spacer. A one piece paper gasket maximum .065” thickness must be installed between the spacer and the intake manifold. The gasket must not be larger than the top of the intake.

Late Model Stock Engine

2. Late Model Stock engine will use either an approved Holley 2 barrel 450 cfm or 350 cfm Carburetor.

3. .750” thick maximum NASCAR LMSC approved aluminum spacer allowed between carburetor and intake manifold.

2017 SUPER TRUCKS RULES

ZZ4 Crate Motor (PN# 88958603)

1. Optional: GM 604 “Beehive” type valve springs may be used but be must remain as specified in the GM Performance Parts Circle Track Engine Technical Manual (No Aftermarket Springs). Shimming will be permitted to maintain 1.78" installed height as per GM Performance parts Circle Track Engine Technical manual.

2. Rockers Arm must be stock for ZZ4 engine.

CARBURETOR

  1. Late Model Stock engine will use either an approved Holley 2 barrel 450 cfm or 350 cfm Holley 2300 model #7448 Carburetor. 

2. .750” thick maximum NASCAR LMSC approved aluminum spacer allowed between carburetor and intake manifold.

2017 Late Model Stock Rules

2.  GM Fast burn 350/400 Circle Track Engine part# 88958604

Fast burn crate engine will use the Holley 650 Carburetor part #0-80541-1.  Must remain factory stock with no modifications.  Only changes allowed are the power valve, squirters, screw-in air bleeds, and jets. Recommended that boosters be epoxied to carburetor body.  Only Holley replacement parts allowed

3.   GM ZZ4 350/355 Circle Track Engine part# 88958603

ZZ4 crate engine will use the Holley 650 Carburetor part# 0-80541-1.  Must remain factory stock with no modifications.  Only changes allowed are the power valve, squirters, screw-in air bleeds, and jets.  Recommended that boosters be epoxied to carburetor body.  Only Holley replacement parts allowed.

 

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Limited Late Models:


Any Limited Late Model that would like to compete in the NWAAS Bojangles
Late Model Stock Car Division may do so under the following conditions.

1)       Must upgrade to a Division 1 license.

2)       Purse will be $100 dollars per car per night regardless of the
number of events or length without the purchase of fuel and tires.

3)       Limited Late Models must race in the event. (No start and parks)

4)       Regular NWAAS Bojangles Late Model Stock Car Division purse will be
in effect with the purchase of fuel and tires.

Trucks:

See changes in red to the 2017 Super Trucks rules.