Streetroots

Class Overview

The Street Roots (SR) Class is designed to showcase true street-based builds while maintaining fairness, accessibility, and a competitive grassroots environment.

This class operates on a gentleman’s agreement. Respect the intent of the rules — we are watching, and we expect professionalism.

To uphold the intent of this series; BCDA is allowing petitions of vehicles to allow access to as many up-and-coming drivers as possible. Petitions must be completed 2 weeks prior to an event and
submitted to thebcda@gmail.com for review.

Drivers registered, previously registered, or planning to register as Pro-Am drivers for the 2026 season are not eligible to compete in SR Class.

*Championship winners of this series will generally not be eligible for future SR competition – special exceptions may be made at the discretion of the series director*

Streetcar Definition

Vehicles must appear as a functional, street-legal car.

The vehicle must appear complete and retain the functional characteristics of a standard road-going
vehicle, however:

The vehicle must pass Open Drift Technical requirements, and in addition:

Engine and management:
- Engine must remain sealed, factory internals only. No aftermarket, lift, duration or compression altering modifications. *Unless previously approved by BCDA Officials through the petition rule*
- All engines must come from the factory in the chassis you are using, or a Global market engine sistered to the same chassis. (Must come OE in another Country) *unless previously approved
by BCDA Officials through the petition rule*
- No aftermarket intake manifolds
- Breather and appropriate engine venting is allowed (is preferred) into appropriate catch canister minimum 500ml in capacity
- No power adders. If engine comes N/A it stays N/A. No nitrous or meth injection
- Aftermarket headers will be allowed on N/A cars only
- If the car is turbo from factory, it must remain factory manifold and factory turbo
- Aftermarket front mount intercoolers will be allowed
- Factory ECU tunes will be allowed, no aftermarket PCM’s, EMU’s allowed. (example: Link, Holley, ECU Master, ect. SAFC’s are ok)
- Exhaust must exit behind the rear axles
- Vehicle must be free of leaks

Cooling:
- Radiator must be in the FRONT position. No rear mount radiators allowed
- Aftermarket fans or cooling improvements to radiator system are OK
- Radiator system needs proper overflow and catch can if needed

Battery:
- Battery relocations will be allowed. With an appropriate minimum 150-amp breaker system in place
- Positive terminal must be covered and free from touching any mounts or bare exposed metal
- Battery must be in an appropriately sealed, appropriately vented box if in the cabin with the driver.
- Battery must be fastened securely using metal hold downs

Cages and Safety:

Cages and Bash Bars (Cages - NOT REQUIRED)

However, if equipped with one, then the following is required and must meet our specifications: *Exception: Convertibles must be equipped with cage even if equipped with factory hardtop*

If the vehicle is equipped with a cage, Padding must meet SFI spec 45.1 or FIA 8857-2001. Padding is required anywhere driver helmet may come in contact with the roll cage.

All welds shall be visually inspected and shall be acceptable if the following conditions are satisfied:

a. Welds shall be continuous around the entire tubular structure
b. The weld shall have no cracks
c. Grinding down of welds is prohibited
d. Thorough fusion shall exist between weld metal and base metal
e. All craters shall be filled to the cross section of the weld
f. Undercut shall be no more than .01-inch deep
g. Aluminum bronze or silicon bronze welding techniques are permitted, but extreme care shall be used in preparation of parts before bronze welding and in the design of the
attaching sheet metal joints
h. Roll Cage Material must be Seamless SAE 1020 or 1025 mild steel tubing, DOM, and or chromoly (Please refer to Formula Drift rulebook for full breakdown of materials)
i. ERW tubing is not permitted in any structural areas and will be deemed unsafe by BCDA officials if found
j. All roll cage tubing in the requirements listed above must be a minimum of 1.5” x .095-inch for all materials
k. If your vehicle comes with factory door protection you must retain it, unless a properly installed cage is present and to spec (determined by BCDA official)

Bash Bars:

- Bash Bars must span the distance of both frame rails front and rear
- Bars must be a sufficient distance from the tire that if bent in an accident it will not impede or damage the wheel or tire
- Bars must be between 1” - 1.75” diameter tubing and .063” - .120” wall thickness

Fire Protection:

- All vehicles must be equipped with a minimum 5lb fire extinguisher mounted within drivers reach while buckled in. Element fire sticks are allowed in substitution of the fire extinguisher but
no smaller than an e-50. (no exceptions, come prepared)

*Element Fire Extinguisher are available from BCDA (official Element Fire Extinguisher Dealer) *

Seats and Harnesses:

- Aftermarket seats and harnesses permitted at the discretion of a BCDA official (email thebcda@gmail.com two weeks prior to event for pre-approval if unsure)

Helmets:

- Helmets shall be 10-year Snell certified SA2015 and newer helmets. *No M Snell or DOT helmets*

Vehicle Exterior & Interior:

- The following items must be present and in working condition;

1. Headlights/ Taillights (stock or aftermarket) must be in full operating order running lights must work!
2. Wipers must be in functional condition
3. Vehicle must have all wheel lugs fixed with appropriate thread engagement
4. Improper latching of hood, doors and trunk lid will lead to a zero’d run if they
happen to open during a qualifying or battle run, so keep that in mind
5. Vehicle must have a dash, and sealed off trans tunnel; ie shifter boot (OEM or
SFI – for fire safety) or chassis mount shifter
6. Air bags can be removed for safety reasons

Tires:

- Tires will be restricted to 225 wide, 320TW M&S tire only (brand doesn't matter)
- Only the rear tires will be restricted; Steer tires do not matter

Structure:

Tech

Practice/ Bash style Qualifying

Main event (Top32) if applicable

(Top 16)

(Great 8)

(Final 4)

Finale!

Awards

Disclaimer:

We at Bold Connections Drift Alliance Inc. (BCDA) reserve the right to refuse anything we deem unsafe if it is to show up to our event and feel the need to do so. This goes for anything right down to
your driving. Please be advised Rulebook is subject to change at any time and the community will be notified via posted Bulletin. It is the driver’s responsibility to review and familiarize themselves with all rules.