Okay, this year our local PCA region is classifying anything with race
tires according to the SCCA rules.

In trying to figure out this stuff, it's not clear what the difference is between
SM and SSM. Can a 914 be in SM? Or because it's a 2-seater it must be SSM?



I can't make it into SP because my 914-6 has a lot of non-standard engine
parts making it a 2.3L.

Thanks for any direction.

SSM " SM must have four or more seats, else SSM "

Street Modified Classes
The street modified classes are intended to be the ultimate street-legal racing machines.

Equipment Allowances:
All of the rules and allowances of stock, street touring and street prepared classes apply, with the following additions:

• Engine ◦ Any engine is allowed, with any modifications
◦ Make of engine block must match make of original engine or chassis

• Minimum Weight
◦ SM:
▪ FWD: Minimum 1550lbs + 125lbs/liter
▪ RWD: Minimum 1800lbs + 200lbs/liter
▪ AWD: Minimum 1800lbs + 300lbs/liter
▪ +25lbs for mid or rear engine
▪ "maximum minimum weight" of 3100lbs

◦ SSM:
▪ FWD: Minimum 1350lbs + 125lbs/liter
▪ RWD: Minimum 1600lbs + 200lbs/liter
▪ AWD: Minimum 1600lbs + 300lbs/liter
▪ +25lbs for mid or rear engine
▪ "maximum minimum weight" of 2900lbs

◦ SMF:
▪ Front-wheel drive only
▪ 2 seats: Minimum 1650lbs + 125lbs/liter
▪ 4 seats: Minimum 1550lbs + 125lbs/liter

• Other: ◦ SM must have four or more seats, else SSM
◦ Aftermarket hoods OR trunk lid
◦ Wings may be added, removed or modified
◦ Rear seats may be removed
◦ Stereos may be removed

Hi Garold,
Thanks for the clarification. The 2016 online rules do not say this anywhere. I assume their online version is 'abridged' as it is only 345 pages.

Is there a source for the full 2016 rules? Another thing that is not explained in my
'reduced' copy is what is the difference between SP and SSP.

Try this link ->>>>> SCCA SOLO RULE BOOK PDF

Page 193 tells you about SSM. It is the complete book.