BoB Adjustments
#34208 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)
The popularity of BSPEC has brought heightened attention to the Balance of Performance (BoP). Given the wide diversity of
eligible cars and their designs, driving ability, car preparation/tuning levels, and other variables outside of SCCA’s control, the BoP
in this class has been remarkably close. As compared to IMSA’s job of balancing cars which are all professionally prepared, driven,
and highly instrumented, the job of our advisory committees and CRB is considerably more difficult. There are most certainly
outliers and cars which are superior under certain conditions, but in the absence of BoP regulations which vary from track to track
a perfect balance every weekend is not to be expected. The BoP is set by SCCA for what is perceived to be the ultimate tune and
best driver in a given car across the entire racing season and over as many tracks as can be reasonably sampled. If a car is not
prepared, tuned, and driven to its ultimate capability we cannot expect that it will be on par with cars of other manufacture which
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are to such level; the BoP is not a handicap program. And, while the class is named “BSPEC”, it is not a spec class as is FE2 or SRF3.
The more experienced mechanics and drivers will certainly have an advantage over those who only race a few times per season.
Anecdotal observations do not serve the SCCA in working towards a proper BoP, yet that is the type of information most commonly
provided in support of a requested change. Hard data and experience are what drive change to the BoP.
Despite what we believe to be an excellent BoP for this class, there is always room for improvement. The BSPEC Advisory
Committee has recently been charged with the considerable task of classifying cars and refining the technical specifications for
the new T5/CSPEC class and, as a result, does not have sufficient time or resources to address the immediate demands for BoP
adjustments in BSPEC. As a result, veteran CRB members Peter Keane, Tom Start, and Sam Henry have poured through BSPEC
data reports from events over the past eighteen (18) months and have recommended to the CRB the following changes which
were approved during its most recent meeting. These changes will be effective beginning 5/1/2023 for positive adjustments and
6/1/2023 for negative adjustments. Data will be gathered as possible with a focus on continued improvement. Comments and
suggestions regarding same should be forwarded through the official letter system. Your continuing support of BSPEC and SCCA
is greatly appreciated.
In B-SPEC Spec Lines, Ford Fiesta 5dr Hatchback (11-19), change Weight as follows:
“2495 2470”
In B-SPEC Spec Lines, Ford Fiesta 4dr Sedan (11-19), change Weight as follows:
“2495 2470”
In B-SPEC Spec Lines, Honda Fit MT (15-19), change Weight as follows:
“2575 2525”
In B-SPEC Spec Lines, Honda Fit CVT (15-19), change Weight as follows:
“2575 2525”
In B-SPEC Spec Lines, Kia Rio 5-door/LX (12-19), change Notes as follows:
“39 41mm flat plate restrictor required.”
In B-SPEC Spec Lines, Mazda2 (10-14), change Weight as follows:
“2330 2280”
In B-SPEC Spec Lines, Mini Cooper (R56) MT (07-10), change as follows:
Weight: “(Effective 6/1/2023) 2600 2675”
Notes: “(Effective 6/1/2023) 41 44mm FPR required with OE catalyst.”
In B-SPEC Spec Lines, Mini Cooper (R56) AT (07-10), change as follows:
Weight: “(Effective 6/1/2023) 2600 2675”
Notes: “(Effective 6/1/2023) 41 44mm FPR required with OE catalyst.”
In B-SPEC Spec Lines, Mini Cooper Clubman (R55) (07 - 10), change as follows:
Weight: “(Effective 6/1/2023) 2600 2675”
Notes: “(Effective 6/1/2023) 41 44mm FPR required with OE catalyst.”
In B-SPEC Spec Lines, Mini Cooper (R56LCI) MT (11-13), change as follows:
Weight: “(Effective 6/1/2023) 2600 2675”
Notes: “(Effective 6/1/2023) 41 43mm FPR required.”
In B-SPEC Spec Lines, Mini Cooper (R56LCI) AT (11-13), change as follows:
Weight: “(Effective 6/1/2023) 2600 2675”
Notes: “(Effective 6/1/2023) 40 43mm FPR required.”
In B-SPEC Spec Lines, Mini Cooper Countryman (R60) (11-16), change as follows:
Weight: “(Effective 6/1/2023) 2600 2675”
Notes: “(Effective 6/1/2023) 41 42mm flat plate restrictor required.”
In B-SPEC Spec Lines, Mini Cooper Paceman (R61) (11-16), change as follows:
Weight: “(Effective 6/1/2023) 2600 2675”
Notes: “(Effective 6/1/2023) 41 42mm flat plate restrictor required.”
In B-SPEC Spec Lines, Mini Cooper Clubman (R55) (11-15), change as follows:
Weight: “(Effective 6/1/2023) 2600 2675”
Notes: “(Effective 6/1/2023) 41 42mm flat plate restrictor required.”
In B-SPEC Spec Lines, Mini Cooper Coupe (R58) (12-15), change as follows:
Weight: “(Effective 6/1/2023) 2600 2675”
Notes: “(Effective 6/1/2023) 40 42mm flat plate restrictor required.”