390 replies to this topic

[Bench Racer]

 

Entries for SM at the Farm went up from 8 to whooping 11 for the double this weekend. Welcome Samantha, Tom and Steve.

 

Entries for SMT at the Farm stayed at 5 with the addition of 2 SM running ITA (?) in the same race group. Welcome Tom and Steve.

[ner88]

Northeast Division is beginning its third season running SM2.

Second largest class, only SM has more and often populated by SM2 cars double dipping.

[Tom Scheifler]

Entries for SM at the Farm went up from 8 to whooping 11 for the double this weekend. Welcome Samantha, Tom and Steve.

Entries for SMT at the Farm stayed at 5 with the addition of 2 SM running ITA (?) in the same race group. Welcome Tom and Steve.

Thanks. Looking forward to running at the Farm after a many year hiatus.
Did not notice there was an SMT class in group 4 when we signed up so we doubled into ITA like we did 2 weeks ago at NCM. Figure it does not really matter for that group. Just extra track time.

[Tom Scheifler]

SSM last weekend 40 entries. SM 20 you tell me which one the regional racers want....

Clearly where there is interest, a division/region can create and sustain a separate class for the 1.6s. So there is no need to force it upon everyone running a 1.6.

[LarryKing]

So, how does one go about getting a national SSM ruleset, as a regional only class, in the GCR? This could unify all the SM2, SMT classes around the country and get all interested parties on the same page. There's your 1.6 class.

 

I think this would be an outstanding solution to end parity discussions. At least until the NC cars are added to SM.

[Blake Thompson]

So do we have 15-20 people weighing in on this topic here?  Getting easier to understand why 536 (537 if you count Biden) elected officials in Washington can't get a damn thing done and what does get done sucks.  

 

A small group of people of substantial financial means pretending they represent the interests of the general populace while simultaneously not asking said populace?  I really fail to see the comparison at all.

[mhiggins10]

Northeast Division is beginning its third season running SM2.

Second largest class, only SM has more and often populated by SM2 cars double dipping.

So there may be MORE 1.6s showing up on a regular basis??  Shocking.

 

I'm not so sure a split class simultaneous race would be the answer.  I can only imagine the howling when if the NB guys get hung up behind an NA battle and someone loses a podium spot.  Or, more likely, the howling from the NA guys as some mid-pack NB folks come through a tight podium fight towards the end of the race.

 

I suppose it's not much different from running T4 occasionally with SM here in Sowdiv, or other situations with multiple cars on the track.  And personally, it will likely never effect me- far more likely the NB guys will run up on me at the end of the race to lap me...

[Danny Steyn]

I love this debate - so many viewpoints as Sager points out. So let me comment on a couple of posts

 

1. My Personal Nirvana would be giving the 1.6 and 1.8 NA's something that makes them competitive in the current SM class, but it is proving very difficult to identify what the right thing is. Last night however the SMAC received some incredibly well documented data analysis from a 1.6 showing the net results of removing the left turn signal to allow cold air into the engine bay to try and prevent the heat soak that is common with these cars. The data contained before and after, showed the calibration of the instruments and was very thorough. It is this sort of help that the SMAC needs to make informed suggestions to the CRB. Please keep them coming.
2. SM2 - running the NA's in the same SM class but scoring them independently. Personally I think this is a decent solution, maybe not the best solution, but we have tried it at the ARRC and we did not get any more NA's signing up than before. However there were some interesting take aways. Those that podiumed in the SM2 class were THRILLED to get the attention and the podium, flags, trophies, champagne, just as they should. However several NA cars that have never been teched before were suddenly under the spotlight in tech, and not all of them made it through, so lets call this an unintended consequence that needs to be understood.
3. SSM - MARRS region does a wonderful job with SSM and I have run with them and it is a very competitive class and a fraction of the cost of running competitively in SM. As Todd says, it will take critical mass, but before it even can begin to take hold it will need individuals to CHAMPION the SSM class, in the same way as committed individuals within the MARRS region put their time and effort into building this amazing class. It will NOT happen without strong charismatic leadership championing the formation of this as an alternative. So the question for you all is, if this is the way forward, who is going to step up and champion this as a class? Do you have the time and energy and leadership to pull this all together and make it work?

[davew]

Meathead, can you post a link to the WDC region SSM rules so everyone can read them.

 

dave

[LarryKing]

Not Meat.

 

On NE Div's site

 

http://www.nediv.com...014SSMrules.pdf

 

It would appear that the Fat Cat kit and NB shock hats are not permitted. Anyone know where to get a new MazdaComp exhaust? (I just HAD to sell mine)

[Mike Collins]

Sports Car Club of America (SCCA),

Washington DC Region (WDCR),

Mid Atlantic Road Racing Series (MARRS)

2015 SSM Car Preparation Specification

 

A. PURPOSE AND INTENT Showroom Spec Miata (SSM) was conceived as an entry-level Regional class with emphasis on simplicity, equality and low cost. SSM vehicles shall conform to SCCA GCR Section 9, Automobiles, and Section 9.1.7, with the exception of the following restrictions or specifically allowed modifications. These rules are not intended as guidelines or suggestions and they will be vigorously enforced. The Showroom Spec Miata (SSM) class is intended to provide the membership with the opportunity to compete in a production-based car with limited modifications, suitable for racing competition. The rules are intentionally designed to be more open than the Showroom Stock class but more restrictive than the Spec Miata Class. The vehicle identification number (VIN) shall correspond with the model-year automobile classified. VIN plates or stampings shall remain in place. There must be a minimum of two (2) VIN plates or stampings that correspond with the model year automobile classified.

 

B. CLASSIFIED CARS AND WEIGHTS 1990 - 1993 Miata 1600 cc @ 2275 lbs. with driver 1994 -1997 Miata 1800cc (grandfathered cars only) 2400 lbs. with driver.

 

C. AUTHORIZED MODIFICATIONS The following items represent the only modifications and safety items permitted and/or required on Showroom Spec Miata automobiles other than safety items as required in the current GCR. No permitted component/modification shall additionally perform a prohibited function. No updating or backdating of cars, models, specifications, and/or components thereof shall be permitted except as specifically authorized. A Mazda Factory Service Manual for the specific make, model, and year of automobile is required to be in the possession of each entrant. The manual is intended to aid a Scrutineer in identifying parts and the configuration of the automobile. Overhaul procedures that in the slightest way would increase performance are not to be utilized, for example, porting. Blueprinting and balancing are inconsistent with the philosophy of this class and are not permitted. The application and/or use of any painting, coating, plating, or impregnating substance (i.e. anti-friction, thermal barrier, oil shedding coatings, chrome, anodizing, etc.) to any internal engine surface, transmission, differential, internal or external surfaces of the exhaust manifold or downtube, is prohibited. All adjustments shall be at the manufacturer's specification and/or within the manufacturer's specified tolerances except as permitted within these rules. Stock replacement parts may be obtained from sources other than the manufacturer provided they are the exact equivalent of the original parts. The intent of this rule is to allow the competitor to obtain parts from standard industry outlets, e.g., auto parts distributors, rather than from the manufacturer. It is not intended to allow parts that do not meet all dimensional and material specifications of new parts from the manufacturer. Note that OEM “replacement” is not necessarily the same as OEM “equivalent”. 1. Engine Modifications a - Induction System

1 - All air entering the intake tract shall pass through the fuel injection air inlet.

 

2 - 1600 cc cars must use the stock air box. An OEM style filter element must be present. a - 1600 cc cars may open and adjust, but not modify, the OEM airflow meter. b- 1600 cc engines may bore cylinders +0.010" overbore to 3.086" and must use the Mazda OEM piston B6Z2-11-SB0C.

 

3 - 1800 cc cars must (1800cc cars must be Grandfathered in, see drivers rep) use the stock air box. An OEM style filter element must be present.

 

4 - 1800 cc cars shall use an air restrictor. The throttle restrictor shall be placed between the throttle body and plenum. All intake air shall pass through the restrictor plate. Restrictor plates must be the proper size as listed below, cannot be modified and must be from MAZDASPEED Motorsports Development or SCCA Enterprises. The restrictor plate opening must be centered in the throttle body opening. 1994 through 1997 1800 cc SSM must use a 45 mm. throttle restrictor MAZDASPEED part # 0000-06-9945 or SCCA Enterprises part # SMRP-45.

 

b - Fluid hoses and clamps, oil filters, fuel filters, and belts (fan, alternator, etc.) may be substituted with others of equivalent OEM specifications. c - Fuel System

 

1 - Unleaded fuel filler trap door and restrictor plate in filler neck may be removed.

2 - Refer to current GCR for permitted fuel specifications and for the required fuel sample acquisition port.

3 – The current GCR Section is further restricted for SSM to limit fuel to a maximum of 94 octane. Fuel must be from a commercially mass marketed supplier (e.g. Sunoco, Exxon, Mobil) or independent mass marketer (e.g. Sheetz). Limited use race fuels are not permitted. Pump fuel may be purchased at the track (e.g. Sunoco at Summit Point).

d - Ignition/Electrical System

1 - Ignition timing is limited to a maximum of 15 degrees BTDC and a minimum of 8 degrees BTDC.

2 - Batteries may be replaced with those of an alternate manufacturer provided they are of similar amp-hour capacity, size, and weight and are fitted in the standard location. Additional battery hold-down devices may be used, and are strongly recommended.

3 - Master cut-off switch may be used and recommended. Installation per current GCR.

4 - Spark plugs are restricted to the: 1.6L - NGK BKR6E-11 (Mazda part number BP03-18-110). 1.8L – NGK BKR5E-11 (Mazda part number BP01-18-110)

5 – Ignition wires are restricted to stock NGK(Mazda part number 0000-18- 121A), or Taylor (Mazda part number 0000-10-5301.

e - Exhaust System

1 - Catalytic converter may be removed and replaced with the following parts: 1600 Catalytic converter replacement pipe part # 0000-06-5423 1800 Catalytic converter replacement pipe part # 0000-06-5424 All other exhaust components will remain OEM stock with the exception of item 2 below.

2 - Mazdaspeed Motorsports spec exhaust part # 0000-06-54253 is required.

3 - Original exhaust system heat shields may be removed. Heat wrapping of any kind is prohibited. f. Clutch System and Flywheel: All cars shall use either the stock OEM pressure plate for the appropriate model year, or the ACT pressure plate (Mazdaspeed part #0000- 0205401-SS (1.6L cars) or 0000-0205404-AC (1.8L cars). The unmodified pressure plate shall be bolted directly to the appropriate stock, unmodified flywheel. The 94 model year may utilize the flywheel from the 95-05 model years. Any clutch disk may be used. Clutch lines may be replaced with steel lines or Teflon lined metal braided hose.

1 - The OEM flywheel may be resurfaced, but the minimum flywheel weight (including the pilot bearing) is 17.6lbs for the 1.6L and 17.1 lbs for the 1.8L. g. Any lubricant may be used. Oil additives are unrestricted. h. Camshafts shall comply with the Official Spec Miata Camshaft Data as supplied by the SCCA Tech Department.

2. Cooling System a - Any radiator may be used, provided it is mounted in the original location, maintains the same plane as the original core and requires no body or structure modifications to install. New openings created by fitting an alternate radiator must be blocked and may not be used for the purpose of ducting air to the engine. 1 - The stock cooling fan(s) must be maintained. 2 - The aftermarket radiator shall be modified, if necessary, to mount the stock OEM cooling fan in the original mounting location(s).

b - Thermostats may be modified, removed, or replaced.

c - All cars may install the Upper Radiator Seal, part # NA75-50-OK7A, or close off the same area to create the same effect.

d - A radiator screen of one-fourth (1/4) inch minimum mesh may be added in front of the radiator and contained within the bodywork.

e - The factory air conditioning systems may be removed. Items that serve a dual purpose, such as the alternator/air conditioning compressor bracket, may not be substituted.

f - Engine coolant fluid, coolant/heater hoses and clamps may be substituted. Heater core may be bypassed, but it may not be modified or removed. Heater water control valve(s) may be added or substituted. 3. Transmission/Final Drive a - Transmission and final drive ratios must remain stock for the year of car.

b - 1990 to 1993 (1600 cc) Miata may use the stock, unmodified viscous limited slip differential or the MAZDASPEED Motorsports Development limited slip differential, part # QN10-64-A00 (previously TOY1-27-200 & 0000-02- 5501).

c - 1994 and newer cars may use the stock Torsen limited slip differential for the appropriate year model.

d – Transmissions with part numbers superseding those of the 90-93 transmission may be used.

e - The 90-93 Miatas may convert to the 99-05 differential housing and the 4.3 differential gear ratio from the 99-05 model years. This conversion includes the driveshaft and half-shafts. The original 90-93 model rear suspension uprights must be retained.

4. Chassis Suspension modifications are limited to the addition of the MAZDASPEED Motorsports Development "Spec Miata kit" and those modifications detailed in this area. a - MAZDASPEED Motorsports Development Spec Miata kit. 1990-93 1.6 DOHC K-SPEC-M5-SUSP 1994-97 1.8 DOHC K-SPEC-M5-SUS8 The following is a breakdown of components supplied within these kits. All parts numbers are MAZDASPEED Motorsports Development parts numbers. No substitution of parts is allowed. The kits must be used in their entirety.

1 - Shocks Front Bilstein part # 0000-04-5225-BL Rear Bilstein part # 0000-04-5226-BL 2 - Springs Front Eibach ERS 700 lbs/6" part # 0000-04-9700-06 Rear Eibach ERS 325 lbs/7" part # 0000-04-9325-07 3 - Coil-Over kit Front/Rear part # 0000-04-5402AW The originally supplied Mazdaspeed coil-over kit Part # 0000-04-5402 manufactured by Ground Control is grandfathered.

4 - Anti-Roll Bars 1600 cc: Eibach kit – part # 0000-04-5302-EB Front 24mm Adjustable Rear, 15mm Adjustable 1800 cc: Eibach kit – part # 0000-04-5303-EB Front 27mm non-Adjustable Rear 15mm Adjustable

b - All cars shall use the unmodified Mazdaspeed bump stop part # 0000-04-5993AW. Cars built with the original procedure of welding a 63.5 mm centering ring to the outside diameter of 58 mm are grandfathered if the logbook was issued prior to 01/01/2003.

c - Sub-frame braces may be updated to stock 1997 configuration utilizing the MAZDASPEED Motorsports Development Spec Miata kit.

d - Anti-roll bar links may be replaced and may be adjustable, but the attachment points must remain stock. The control arms and specified anti-roll bar may not be modified. One end of the sway bar(s) may be disconnected as a suspension tuning aid. The bar must remain in place and be solidly attached to the suspension on one end.

e - Suspension alignments - caster and toe are unrestricted within the limits of the unmodified factory adjustments. Minimum ride height is unrestricted. Camber: Front: Maximum 2.5 degrees negative Rear: Maximum 3.0 degrees negative

f - No relocation or reinforcement of any suspension component or mounting points is permitted.

g - Hardware items (nuts & bolts) may be replaced by similar items performing the same fastening function(s).

h - Manual or power steering racks may be used. Power steering racks may be converted to manual by removing all power steering components. i - Towing eyes per current GCR Section are required. Stock towing eyes may be modified or replaced.

j - Hubcaps and wheel trim shall be removed.

k - All chassis/structural/electrical repairs, if performed, shall be in concurrence with factory procedures, specifications, and dimensions. Unless specifically authorized by the manufacturer for repair or allowed by these rules, no reinforcement, i.e., seam welding, material addition, etc., is permitted.

5. Brakes

a - Backing plates and dirt shields may be removed.

b - Brake lines may be replaced with steel lines or Teflon lined metal braided hose.

c - Cars with antilock braking systems must have the system disabled or removed as specified in current GCR.

d - Parking brake mechanisms and actuating components may be removed.

e - Brake pads and brake fluid are unrestricted

6. Wheels/Tires All wheels must be used in matched sets of 4 and may be used within the following limitations:

a - Required rim diameter is fifteen (15) inches by seven (7) inches width.

b - Minimum weight of wheel shall be 13 lbs. Spacers are permitted providing the end result offset is either 30mm or 25mm. All four wheels must have identical offset.

c - All wheels must be one-piece metal castings (not multi-piece wheels, bolted, riveted or welded together).

d - After market wheel studs are permitted.

e - The spec tire is the Toyo RA1 205-50-15, shaved or unshaved.

f - Tire tread (that portion of the tire that contacts the ground under static conditions) shall not protrude beyond the fender opening when viewed from the top perpendicular to the ground. To determine compliance, the vehicle should be rolled through a powdered substance, as raced with driver, in order to indicate the tire tread contact patch under static conditions.

7. Body/Structure

a - Fenders and wheel openings shall remain unmodified. It is permitted to roll under or flatten any interior lip on the wheel opening for tire clearance. Non-metallic inner fender liners may be removed.

b - Body repair shall be performed using every reasonable effort to maintain stock body contours. Any body repair modification having as its purpose increased clearance is prohibited. Cars shall meet the requirements of current GCR Section, Vehicle Preparation, at all times.

c - No air dams, wings, or spoilers are allowed other than the "R" package Miata chin spoiler provided it is mounted in the OEM location.

d - Windshield Clips/Rear Window Straps per current GCR Section are permitted and recommended.

e - Convertible tops and attaching hardware shall be completely removed. Cars may compete with the Mazda factory detachable hard top or Snug Top in place (latches shall be replaced with positive fasteners), but it is not mandatory. When no top is used, driver shall wear arm restraints, and the cage must meet the helmet clearance rule.

f - Body side moldings, rocker panel moldings, and wheel opening trim pieces may be removed.

g - The plastic trim on the hood may be removed.

h - Hood and trunk clips are permitted. Stock hood latches and trunk latches may be disabled or removed.

i - Ducting may be added to provide fresh air to the driver compartment. This ducting shall be located in the driver and/or passenger vent window area with no modifications to the bodywork.

j - To improve driver exit through the window area, the driver vent window and vent window supports may be removed. If removed, ducting may be in the passenger side vent window only.

k - Radio antennas may be removed. Antennas for two-way radios may be added.

8. Driver/Passenger Compartment/Trunk

a - The driver's seat shall be replaced with a one-piece bucket-type race seat. All seat mountings shall be reinforced. Factory seat tracks/brackets may be modified, reinforced, and/or removed to facilitate replacement mountings provided they perform no other function. The OEM passenger seat must be removed, but a replacement seat meeting the specifications of the driver seat may be substituted.

b - Any steering wheel, except wood rimmed types, and its required mounting modifications may be used. Any shift knob may be used.

c - Gauges and instruments, including data systems, may be added, replaced, or removed. They may be installed in the original instrument(s) location using a mounting plate(s), or any other location using a secure method of attachment. The vehicle’s “Check Engine” light shall remain functional. Other than modifications made to mount instruments and provide for roll cage installation, the remainder of the dashboard or panel shall remain intact.

d - Any interior mirrors may be used.

e - Carpets, center consoles, cargo bins, seat belts, floor mat, radio system, headliners, dome lights, grab handles, sun visors and their insulating and attaching materials may be removed. Other than to provide for the installation of required safety equipment or other authorized modifications, no other driver/passenger compartment alterations or gutting are permitted.

f - The driver/passenger side door window glass, window operating mechanism, and inside door latch/lock operating mechanism may be removed and the inner door structural panel may be modified, but not removed. The stock side impact beam and the outside door latch/lock operating mechanism shall not be removed or modified.

g - Two way radios may be used.

h - Spare wheels and tires, jacks and tools shall be removed from the cargo/trunk area. Spare tire covers and trunk mats and/or trunk carpeting shall be removed.

i - Modifications may be made to the foot pedals to improve the comfort and accessibility to the driver. Dead pedal/foot rest and heel stop may be added.

j - If ballast is required to meet the required weight it shall be added as follows:

1 - All ballast shall be securely mounted on the passenger floor.

2 - Each segment of ballast shall be fastened with a minimum of two (2) one-half (1/2) inch bolts and positive lock nuts of SAE Grade 5 or better and shall utilize large diameter, load distributing washers.

3 - Holes may be drilled in the passenger floor pan for the purposes of mounting the ballast and the floor pan may be reinforced for that purpose only. k - All cars shall run with both front door windows fully open (down).

9. Safety

a - Roll cages shall meet all requirements of current GCR Section 9. for cage configuration, tubing size, and material. Regardless of car weight, all Showroom Spec Miata autos may be constructed to the requirements for a <2200 pound car.

b - Steering lock mechanisms must be removed. See current GCR Section.

c - An electrical master ("kill") switch is optional but suggested. See current GCR Section.

d - Installation of a fire extinguisher or fire system is required. See current GCR.

e - Glass headlights shall be taped. Rear brake lights may be taped with transparent tape. Turn signals, front parking lights, backup lamps, and side marker lights may be taped.

f - Air bag systems shall be disarmed and all airbag components may be removed.

g - In any automobile where allowed removal of seat belts, upholstery, etc., creates an opening between the driver/passenger compartment and an exposed gas tank, or part thereof, including the filler tube, a metal bulkhead which completely fills such opening shall be installed. See current GCR.

[Rob Burgoon]

Did some napkin math, doesn't look great for the 6 speed to me:

 

5 speed rpm after shift:

4900

5250

5700

 

5266 (average)

 

6 speed rpm after shift:

5000

5350

5600

5900

 

5450 (average)

So you're only shaving off about 200 rpm off the crappy part of the hp curve.  I don't think that's going to move the average horsepower much, AND you have the lost time of the extra  shift, and you have 1.6s shifting at strange times.

 

I'm back to thinking it's a bad idea.  1.6 dyno in red.

 

[davew]

I quickly scanned what is above. Differences I see, and Mike can correct me if I am wrong.

 

Fat cats/99 hats not allowed

Spec plugs and wires

Spec exhaust that is not available for purchase new

Stock air box

94-97 cars grandfathered? at 2400

Spec fuel, or at least highly restricted fuel

Master switched recomended, not required.

 

I may have missed it but don't you have a dyno limit with seals?

 

dave

[Johnny D]

Any region can write their own Sup.

No muffler or one you can buy new.
RR's
Fat Cats allowed

We're not at National #'s/levels yet are we ?

[ECOBRAP]

Lol whenever that dyno graph shows up    If I had 125hp 110ft-lbs I don't think you'd see me on here asking for parity I think the cars are very close right now, so let's not give up and split the class!

 

Good to hear that someone took initiative with the turn signal intake duct, I hope the results were promising. Although I don't often run into heatsoak issues, I know many that do!

[Brandon]

Not Meat.

 

On NE Div's site

 

http://www.nediv.com...014SSMrules.pdf

 

It would appear that the Fat Cat kit and NB shock hats are not permitted. Anyone know where to get a new MazdaComp exhaust? (I just HAD to sell mine)

 

Just a quick point of clarification (and one I find peculiar): to receive MARRS points (the DCR 'regional-only series' in which SSM competes) you MUST have your engine dyno'ed and sealed.  Corollary to this, it is my understanding they are no longer sealing 1.8L engines but I may be incorrect with this statement.

 

So, from my perspective, the statement of "DCR SSM ! == NEDiv SSM" (! == is "not equal to") is accurate and a statement to be cognizant of when it comes time to mimic what they've accomplished.

In my experience, SSM outside of DCR is all but nonexistent and myself having one of the remaining competing 1.8L SSMs (as of 2011 - I went to full SM in 2012), to do anything "nationally" (not that it couldn't happen) would require some compromises in a couple of areas.

 

SSM was supposed to be the playground for 'less than SM' competitors but it turns out SM2 has become a bigger draw than even Jerry expected!  I run SM2 solely as a double/triple dip for a weekend if the groups allow it (SM in Pro-IT is my primary series).

[Blake Thompson]

Any region can write their own Sup.

No muffler or one you can buy new.
RR's
Fat Cats allowed

We're not at National #'s/levels yet are we ?

 

That regional compromise is a huge part of the reason we had so much drama when SM went national.

[Brandon]

I quickly scanned what is above. Differences I see, and Mike can correct me if I am wrong.

 

Fat cats/99 hats not allowed

Spec plugs and wires

Spec exhaust that is not available for purchase new

Stock air box

94-97 cars grandfathered? at 2400

Spec fuel, or at least highly restricted fuel

Master switched recomended, not required.

 

I may have missed it but don't you have a dyno limit with seals?

 

dave

 

See my point about the 1.8L cars effectively 'no longer supported' though grandfathered.  And also note the smaller restrictor (45 vs. 47), increased weight (2400 vs. 2350) and the requirement (not 'may') of running the stock rear gear (4.1 vs. 4.3).  It's not listed/called-out but I thought they were also not allowing adjustable end-links or the R-package tie rod ends (unless you actually have an R-package chassis).

[Johnny D]

Do your SMAC duties cover SSM SM2 ??

SSM is strong in San Francisco Region, regionally of course.

I didn't know you could do a 1.8 but that's interesting.
Throw on a RP and seal a 99 too ?

J~

[Johnny D]

Opening a big can of worms.

Have a SM sealed class. All years.
J~