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Discussion Starter · #1 ·
SOME DIVISIONAL CLASS BACKGROUND:
(Edited on Aug 23)
Prior to beginnning again, it should be noted the Divisional Rally Championships (now called Club) stated in 1984. (Scott Harvey correctly points out that there were Div rallies prior to 1980; thanks, Scott!) There were no classes per se at the Divisional championship level; everyone competed in one class. The 7 divisions were given the option the have a separate P class championship in any division; the wording is such that there is no age limit on any P class cars competing at the Divisional level. The wording for this optional division P class seems to preclude PGT cars. Points awarding in other car classes to support other regional champoinships (like CARS) is allowed.

Group B cars are explicitly banned from Divisional events by 1989 unless they are grandfathered in from 1988 competiton and a "competition adjustment" is made. It was intended to completely ban Group B by 1990, but this got delayed until beyond 1994 for Div and through the 1992 season for National. But then the excpetion for Group B to run at National reappears for a while!

In 1994, 3 Divisional nationwide classes were established: 4WD Open, U2 and O2, P class was still an option for each division.


Starting up again with 1992.....

1992 - Some of the listed changes could be from 1990 or 1991.
Open - Adjusted engine displacement is now 4000cc maximum even for turbo or supercharged engines. If t- or s-charged adjusted displacement is over 2350 cc, then a 40 mm restrictor must be fittted. Specs on restrictor design are 5 mm min width, and must be within 50 mm of charger inlet. Pro Rally Series Manager has the right to mod the rules on a case-by-case basis! (Same as in 1989)
Rally truck - Still only 2WD. 6 cylinder engines now allowed. The 4 cylinder engines alone can have unlimited internal mods using orignal head and block. External airflow components like the carb or throttle body must be unchanged. Fuel flow controlling elements can be changed. An oil cooler is now allowed. For 4 cylinder engines only, the R&P is free, as is the clutch and flywheel system.
Group A - Rules noted that "through lack of support [the class] might be incorporated into a split displacemnt Open class in the future". It's noted that safety belts MUST conform to SCCA specs; some other SCCA/non-FIA changes are allowed.
Production - Adjusted max displacement for P class increased to 2650 cc, and min weight of 1.05 lb/cc specified for P class. Requirements for each competitor to have Production Specification Forms on file or at each event is dropped. Cars still must be regular production as delivered through a US dealer, and with no dealer options. Brake pad friction surface wording changed so that friction surface can be SMALLER than OEM, but not larger. The option to have the original hood locking system for P and Rallytruck cars (instead of hood pins)has appeared.

1993
Open - Some open class info moved to Appendix O, but it's all the same except for FIA classes; all references to any FIA classes in Open are dropped, thus effectively banning Group B cars from US Pro Open class competiton. Group B cars can be in Divisional with a "competition adjustment" (?!?). Alternate materials for exterior panels became allowed, except for door panels.
Rallytruck - Significant change: the age limit of 1986 or newer is removed, and the class became open to 4WD.
Group A - No changes; the possibility of dissolving the class still remains. A notation was added in Appendix A that the car had to have the FIA homologation papers.
Production - It is clarified that no minimum wieght is required for PGT. No other significant changes.

1994
Open - Retention of the original A & B pillars, firewall, and floorpan became a rule. Fender flares and spoilers became unrestricted.
Rallytruck - Min weights modifed for almost all engine sizes and fuel systems. Vehicles must meet Federal emissions standards for year of mfr, so emissions systems must be retained, as was now true for P class.
Group A - A notation added in Appendix A that the car had to have the FIA homologation papers, OR the written apporval on the Pro Rally Series Manager for US based cars; hence, the concept of 'US Group A' continues.
Production - The removal of emissions systems is no longer allowed. Strut tower braces are allowed (although practically allowed for many years prior) as long as the air box is unchanged. Sway bars can be removed. Sales levels of 1000 vehicles minimum IN THE US is now specified.
NEW! G2 is added! - As Appendix G, the rules are almost as they are today, with 2400 cc max adjusted displacement, retaining original 2WD configuration and so on. There was a minimum car weight of 1.05 lb per adjusted cc. No age limits.
NOTE: G5 was not introduced at this time, BUT the Divisional series was split up across the nation into 3 classes: Open 4WD, U2 (under-2-liters, like Nat'l G2 expect with a 2000 cc adjusted displacement) and O2 (ovewr-2-liters), which was the genesis of G5.

1997
Open - Grandfathered Group B cars (from 1988 competition or earlier) appear to be eligible again for National, with the nebulous "competition adjustment".
Rallytruck - Were incorporated into P class in 1995 or 1996, still must meet Appendix T . The 1986 or newer age restriction reappeared. 4WD was explictily included. Min wieghts changed; min and max wheelbases included. Non-original materials alowed on exterior panels except for doors for 2WD. Different modifications are allowed for 2WD vs 4WD, with 2WD being more opn, and 4 cyl engines being even more open.
Group A - Classification dropped sometime between 1994 and 1997, Appendix A removed. We are now at all USA based classes only, with the odd reappearance of grandfathered Group B cars! Was this tied in with the dropping of Group A??
Prodcution - Major change: The age limit of 6 years old or newer dropped between 1994 and 1997.
G2 - Body panels can be "visually similar" rather than "identical"; doors stillmust be of original material. Rotary engines are dropped. Minimum US sales volumes of 1000 cars per year is dropped. Requirement to retain original drive configuration is dropped; I expect this is to align it with a similar idea for G5.
G5 - NEW FOR 1997! Pretty much as now with 5100 cc max adjusted displacement. Tturbo cars with 2350-4000 cc adjusted displacement must have 40 mm restrictors, and with adjusted dispacements over 4000 cc must have 36 mm restrictors.
NOTE ON DIVISIONAL CLASSES: The U2 vs O2 adjusted displacement break changed to 2400 cc to align these classes with G2 and G5.


More to follow; I'll try to do the rest in one more episode. As you can see, the changes are coming fast in furious in the 90's, and it's a lot of work to track them; I am sure I am missing some!

Mark B.
 

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"G2 - Body panels can be "visually similar" rather than "identical"; doors stillmust be of original material. Rotary engines are dropped. Minimum US sales volumes of 1000 cars per year is dropped. Requirement to retain original drive configuration is dropped; I expect this is to align it with a similar idea for G5."


when was the original drivetrain config. re-added for G2 and G5?
 

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Discussion Starter · #3 ·
See next episode....can't remember offhand...brain cells dead from all this reading of small print books.....:)
 

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>SOME DIVISIONAL CLASS BACKGROUND:
>Prior to beginnning again, it should be noted the Divisional
>Rallies (now called Club) stated in 1984. There were no
>classes per se at the Divisional level; everyone competed in
>one class. The 7 divisions were given the option the have a
>separate P class championship in any division; the wording
>is such that there is no age limit on any P class cars
>competing at the Divisional level. The wording for this
>optional division P class seems to preclude PGT cars. Points
>awarding in other car classes to support other regional
>champoinships (like CARS) is allowed.
>
>Mark B.

Nice information (much deleted to save space). Not sure you meant the first statement as it appears. Divisional rallies existed before 1984. My first one was in 1981 (in Indiana). Not sure if that was the first year for Divisionals or not. The rest is an interesting evolutionary chronical. Too bad we don't have more insight into some of the logic behind certain changes.

Scott
www.teamharco.com
Team Harco Motorsports
"Win on Sunday, Sleep on Monday"
 

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Discussion Starter · #5 ·
Hmmmmmm....yes you are right! Now I recall being in a lot of the Tulip 200 rallies over in OH, starting in 1979; my statement is wrong!! DUH!!

I think the right statement is that 1984 is the 1st year for Divisional Championships.

Thanks, I'll try to edit!

Regards,
Mark B. :)
 
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