602 AT HAVASU and VEGAS: If a team utilizes an approved GM 602 Crate Engine at Havasu, a 50lbs. weight break will be allowed, at Vegas a 100lbs. weight break will be allowed. 


FUEL: Havasu Speedway does not carry SUNOCO 110, it is each teams responsibility to have their own supply of SUNOCO 110.  NOTE: There is a convenience store in Lake Havasu that sells Sunoco 110 at the pump.


Sundance Country Deli

121 N. Lake Havasu Ave.

Lake Havasu City, AZ. 86403

Pumps #5 and #6


PRACTICE: On Friday our teams will rotate with the local divisions, on Saturday Spears Manufacturing Modified Series practice will be from 1pm to 2pm.


FRIDAY TECH: All cars are required to roll through the scales on Friday at a designated pre-assigned time for each team.

SATURDAY PRE-QUALIFYING TECH: The series rule is, once Pre-Qualifying Tech Opens at 3pm, all cars are required to be on the ground and ready to roll to tech. A series official will direct your team to the tech line. If you have a mechanical issue, let an official know as soon as you can.

TIRES: Teams will be allowed to have their race tires on Friday, but they must be returned to Hoosier truck by 8pm on Friday.

Pre-order from Hoosier Tire West at 559-485-4612.

WHEEL NUMBERS:  Your race wheels need a car number and a ‘L’ or ‘R’ decal on all wheels to help Hoosier better serve your team.

IMPOUND: All cars will be impounded after qualifying; only 2 people may check pressures, stagger (no jacks) – We will fuel check the top 3 qualifiers, crew members need to be there with tools ready for a fuel check.


SPOTTER’S RADIOS: Each spotter must have a scanner, or a separate radio that will scan the SRL Race Control frequency at 460.0125. No longer may you use a radio that scans Race Control secondary, as it interferes with communication to the spotter, which then leads to directions not being heard.  If you need radio service and/or products, please contact Frank’s Radio at 800-869-9712.


LEFT SIDE WEIGHT: Maximum Left Side Weight % must be correct at all times, both pre-race and post-race inspection (without refueling).



GOLF CARTS: No golf carts, quads, scooters, etc. allowed in the SPEARS Modified Series pit area on race weekends. 



Thank you being part of the Spears Manufacturing Modified Series