2018 EDGE Hotmod Rules & Hotline

2018 EDGE Hotmod Rules & Hotline

2018 Rulebook is under the Rules tab on the website.

Fall 2017 EDGE Hot Mod Hotline  –  10/24/17

As in the past, the Hot Mod division rule changes are being provided in advance of the coming season.  All involved feel this is important and fair to all competitors.  As always, the rule number, rule change and *reasons for the revision is included for clarity.   

Under SUSPENION/STEERING 3. (I): Beginning in 2018, the only allowed shocks to be used on the rear axle will be steel bodied, non-adjustable, non-rebuildable, crimped top, welded bearing oil filled shocks.  ALLOWABLE shocks include AFCO 1200 & 1400 series, INTEGRA Stealth series and PRO WB (welded bearing series) manufactured units. The allowance of the small bodied shocks on the front of the car is a concession made to the competitor’s due to clearance issues. (this will allow the small body Bilstein currently used, but for the STEERING TIRES ONLY.  NO EXCEPTIONS!)  NOTE THAT ALL FACTORY NUMBERS MUST REMAIN ON THE SHOCK BODY, AND RANDOM TESTING TO INSURE FACTORY “OFF THE SHELF” VALVING IS INSTALLED. PURPOSEFUL ALTERATION OR REMOVAL OF THE FACTORY MARKINGS WILL RESULT IN AUTOMATIC DISQUALIFICATION AND SACRIFICE OF SHOCK(S) IN QUESTION TO THE TRACK.   One (1) shock per wheel ONLY! All shocks must be steel bodied and of non-adjustable, non-rebuildable construction, strictly enforced!

* Shock absorbers have become a suspension tuning tool and the possibilities and price tags have recently ramped up for both because of it.  We do not believe this issue has gotten out of hand in the class yet, but are very aware that it could.  At the request of many concerned class competitors, the shock rule was discussed prior to the pre-WMWC round table rule meeting with the drivers. At that time, the preliminary thoughts were introduced to the attendees, options were discussed and thoughts were shared.  Primarily, the desire to eliminate the high end, expensive rebuildable gas shocks was shared by all.  Going into the meeting, the intent was to totally eliminate the use of all gas charged shocks and mandate the oil shocks solely to be used.  The primary concern stated by some in attendance was the clearance issues that may be dealt with to convert the front (steering) shocks to the larger (generally) larger bodied oil shocks.  Taking those concerns into consideration and primarily interested in eliminating “artificial” traction aids, while also reducing the need for some to fabricate new front mounts and purchase front shocks, the shock rule above was agreed upon.  This concession to the original shock rule is due to the open line of communication to the racers and primarily satisfies the rule intent without creating undue hardships on the class participants.  This rule will be reviewed at the end of the 2018 season to determine if the allowance of the small bodied front shocks worked as intended and wasn’t manipulated by the competitors. 

Additionally, racers are encouraged to fully read and understand that the suspension rules state that “bump stops” and “suspension travel limiting” chains are not allowed.  This will be enforced going forward.  The intent of all suspension rules is for the springs, instead of leveraging items, to act as the ‘suspension’.                                

Under TRANSMISSION  7. (A):  Standard (manual) transmissions must be O.E.M. and have a minimum of 2 forward and 1 reverse operational gear.

*Addresses the question about the definition of OEM manual transmission allowance.


Under ENGINES 8. (I):  Aftermarket or O.E.M. cast iron or aluminum intake manifolds are allowed, but under air (air gap) style manifolds are not allowed.

*Addresses the question of the definition of a high-rise intake.  After research and group discussion, the term ‘high rise’ was stricken from the rule due to the vague manufacturer definitions found.  The decision to continue to allow the current intake manifolds versus radically changing rule was adopted.   

Under TIRES  10. (B) No soaking, treating, grooving, cutting or siping of tires allowed!  No aggressive grinding of tires allowed!   (If you can see a cut in the tire surface, it is too aggressive.  Any consistent pattern other than factory tread is not allowed) A “sipe” is defined as a cut in the tire of ANY kind that that can be felt or seen (rule of thumb—if a dollar bill will stick in it when spread apart –it’s a sipe)—consideration for body rubs due to contact that make a cut (sipe) will be made.  Plainly stated, the use of sand paper style to clean up the tread are, while not making cuts in surface is about the limit if tire tread preparation allowed.  The usage of tire grinding discs on tires may result in disqualification.  The usage of any chemical treatments, including items such as tire wash, detergents, or non-traditional type of tire prepping compounds can be detected by the tire lab.  It is advised that when washing tires that they immediately be thoroughly rinsed to allow cleaning compound residue to be washed away rather than absorbed into the tire surface.  If considering purchasing USED TIRES, please take into account that they may have been treated previously.  The cost of a lab tire test is approximately the same as the cost of a new tire.  

*  Nothing in the tire rule has been changed from the 2017 rule book, however head of tech Brad Hibbard felt it was important to review the rule and make additional notes in the verbiage of the rule to further explain and clarify what the rule intent is.  The usage of the G60 tire is the backbone in keeping the class costs in check, and this tire is being used for the same reason by IMCA, USMTS, USRA, etc.  There is much more to the use of this tire other than the rubber compound that is a part of the reason it works for that reason.  Brad reviewed what he expects and wants to see when the cars/tire is presented at (visual) inspection and mentioned that the usage of the durometer and possible lab testing may increase.  He also made those in attendance aware of what to avoid regarding tire wash, warned about purchasing used tires, and stated that any cuts in the tire are considered as sipes and are to be avoided.  The use of something like a sand paper buff to freshen up the tread is allowed as long as cutting the surface is avoided.  We realize the time and effort it takes to prep tires and hope to eliminate it as much as possible by requiring the tires be used “un-doctored” and as sold as much as possible.  Unlike some racing tires, these tires do not “fall off” if cleaned and stored per manufacturer’s recommendations.  The additional rule verbiage is meant to provide all competitors with an aid and guide on tires.    

Under WEIGHTS / CAR WEIGHT 13. (A): No suspension component mounted weight/ballast allowed!

*Addressed a problem that sanctioning bodies are currently dealing with.  Ballast weight rules are already addressed and correctly sized mounting brackets and bolts/fasteners need to be used.   

Under BODIES (D): Securely fastened plastic skirting will be allowed beginning in 2018 season. Four (4) inch min. ground clearance is required at any measured location.

*Drivers have repeatedly asked for a rule change allowing plastic skirting (only) to be allowed.  Beginning in 2018, it will be permissible to do so.  Plastic nose pieces are NOT allowed.


Under SAFETY EQUIPMENT 16. (D) An aluminum racing seat with right side rib protection, right side head rest (minimum) and competition type seat belts are required.

Note:  These are the minimum requirements allowed by rule for competition.  It is the competitor’s responsibility to look towards their own safety.  The recommended items in rules remain as written, but any additional and PROPERLY INSTALLED safety items (fire resistant gloves, full containment seat, HANS device, window net, fire suppression system, etc. will never be rejected.  Please make your personal safety a priority in your racing.

*In the driver’s meeting, all in attendance agreed that the right-side head rest for the driver’s seat should be adopted into the rules.  Other suggestions were made as well.  Because of this, the notation at the end of the SAFETY portion of the rules was added.  The rules are intended as a minimum allowed in order to compete.  Racers are encouraged to go above and beyond regarding personal safety equipment if they desire.  Your personal safety should be a top priority, a responsibility above all else when it comes to this hobby. 

Additionally:  It is with great pride and appreciation that we announce that Sigler Fabrication has agreed to return for the 2018 season as the EDGE Hot Mod class title sponsor and in doing so will once again provide a new Sigler Chassis (winners option of OEM, leaf or 3 link rear suspension).  To be eligible for the 2017 Sigler Fabrication contingency award required class racers to attempt to run no less than 5 races, one of which being the “Workin’ Man World’s Championship” event.  One additional chance for the blind drawing was given to any driver who won an event of any type during the Tyler County Speedway season.  Two (2) total chances were the maximum anyone would receive.  A disqualification for rules infractions of the competitive nature or unsportsmanlike conduct were elimination clauses.  36 drivers were eligible going into the final race with the majority all being in attendance.  In the 50/50 like blind drawing, a young race fan drew Daniel Muldrew’s ticket, becoming the 3rd Hot Mod class driver to receive a Sigler Fabrication chassis contingency in the classes 9 year history.  Thomas and Joshua Sigler have been class supporters since the inception of the Hot Mod and proponents of more economical racing.  Additionally, they have gone above and beyond to aid fellow class racers when in need.

The 2018 rules for the Sigler Fabrication chassis contingency will be identical to 2017 with the exception that racers must compete in 10 events, one being the WMWC event.  All other 2017 rules will apply.  (Naturally, the chassis contingency winner will be expected to use the chassis in competition for a minimum of one (1) season.)  One additional requirement for eligibility is the display of the EDGE Hot Mod – Sigler Fabrication decal in a appropriate place on car’s exterior.

Sigler Fabrication is located south of St Marys, WV.  The shop phone number is (304) 665-7333 or cell # (304) 299-0041 during non-business hours.  We appreciate the continued support of Thomas and Joshua Sigler and encourage class participants to patronize Sigler Fabrication whenever possible.