BoP Lab / Drivers / Daniel Speer
Against the front of the class, by track and class
Gap is the driver's best lap in a session against the fastest lap in their class in that same session (zero is fastest in class), shown as time lost and as a share of the lap, so conditions cancel out and tracks can be compared. Typical is the median session.
Road America (4.05 mi)
Letters to Fastrack
GT1 GT1 LS Limited Prep Rules Package
#39005 from Daniel Speer · Not recommended · Minutes (2026-06 Fastrack)
The Road Racing Competition Committee does not believe that adding another engine spec to GT1 is in the best interest of the
class. We will continue to monitor the recent "LS" addition for now.
GT1 Clarification for LS1 Limited Prep GT1 Motor Rules
#38516 from Daniel Speer · No action required · Minutes (2025-08 Fastrack)
Thank you for your letter. In answer to your questions:
1. Any mass-produced aftermarket intake manifold is permitted.
2. Intake manifold with 90mm OEM throttle body is permitted
3. Any mass-produced aftermarket cylinder heads is permitted with no valve angle modifications.
GT1 GT1 Alternate Engine Combination for Cost Reduction
#36850 from Daniel Speer · No action required · Minutes (2025-01 Fastrack)
Thank you for your letter. Please see the CRB response to letter #37045 in current Fastrack.
GT1 GT1 Fuel Injection Ban
#36440 from Daniel Speer · Not recommended · Minutes (2024-09 Fastrack)
Thank you for your letter. The CRB is currently evaluating F/I for GT1. At this time F/I is currently legal in GTX.
GTX Verifying GTX Class Eligibility and Restrictions
#34605 from Daniel Speer · No action required · Minutes (2023-11 Fastrack)
Thank you for your letter. This car is already classified in GTX Tube Frame @2780 lbs.