IMSA Sedan Racing

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This page will include all known H-body entries for the IMSA Radial Sedan Challenge Series and the IMSA Kellygirl American Challenge series.


1975 B.f. Goodrich Radial Challenge Series

A Street-stock series run on street radial tires. No body modifications were allowed. Pintos, Pacers, Gremlins, and BMW 2002's were the norm in the early years. By 1979 Mazda RX-2's, RX-3's, and Renault's were ruling the roost. H07's with the V6 engine had a strong showing from 1979-83.

Daytona - No entries
Sebring -


Road Atlanta - No entries
Laguna Seca -
Riverside -
Lime rock -
Mid-Ohio -
Mid-America -
Alabama International -
Mid-Ohio - Daytona -

1976 B.F. Goodrich Radial Challenge Series


After six years of faithful sponsorship of the series, B.F.Goodrich was under threat from Goodyear for control of the series. The former couldn't afford a costly tire war, and bowed out after the June Mid-Ohio Race. The series was re-named the IMSA Radial Series, thus creating two champions from one series at year's end.

1977 Executive Motorhome Challenge Series


1978 EMCS


1979 Champion Sparkplug Challenge Series


1980 CSPC


1981 IMSA CSPC


Sebring - Road Atlanta - Riverside - No entries
Laguna Seca - No entries
Lime Rock -
Mid-Ohio -
Brainerd -
Daytona -
Portland - No entries
Mosport - No entries
Road America -
Road Atlanta -
Pocono -
Daytona -
Season Standings

1982 IMSA CSPC


Daytona - No entries
Sebring -
Road Atlanta -
Riverside - No entries
Laguna Seca - No entries
Charlotte -
Mid-Ohio -
Lime Rock -
Summit Point - No entries
Brainerd -
Sears Point - No entries
Portland - No entries
Road America -
Mid-Ohio -
Pocono - Road Atlanta - Daytona -

1983 IMSA CSPC


Daytona -
Sebring - Road Atlanta -
Riverside -
Laguna Seca - No entries
Charlotte - No entries

1984 IMSA CSPRC


Watkins Glen -

1985 IMSA CSPRC



IMSA Kellygirl American Challenge Series


A Roadracing series for American Sub-Compact cars such as Nova, Grand-Am, Cutlass, Aspen, Maverick, Concord, etc.. Pony cars were also welcomed(Camaro, Mustang). Both V6 and V8 engines could be found on the grid. Tires were racing slicks. No body flares were allowed, although wheel-well openig flares were ok. The original sheet metal body panels had to be used. Gene Felton Dominated the first four years of this series as defending Champion. H07's were never a real threat in this series, but they did have some respectable results.

1977 American Challenge -


1978 AC -


1979 KAC -

Kellygirl Services takes over as series sponsor.

1980 KAC -


Pete Harrison was no stranger in the top ten in qualifying. He would also record three top ten finishes.
Road Atlanta -
Lime Rock -
Brainerd -
Golden State -
Portland -
Mid-Ohio - No entries
Road America -
Road Atlanta - No entries
Daytona -
Season Standings

1981 Kelly American Challenge


The "girl" name is dropped, and the series would get a much needed boost in larger prize purses and starting grids. Camaros would start to dominate the series.
Pete Harrison would have a great season in 1981, consistantly qualifying in the top ten and scoring three top ten finishes by year's end.
Road Atlanta -
Lime Rock -
Brainerd - No entries
Sears Point -
Portland - No entries
Road America - No entries
Mid-Ohio -
Road Atlanta -
Pocono -
Daytona -
Season Standings

1982 KAC


Only two races were attempted by H07 racers, as the newer GM bodies were dominating the series.
Pocono -
Daytona -

1983 KAC -

No entries

1984 KAC -

No entries

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