302 SSH prototype at Grass Lake

[Bmwbob]

I've been looking for a detailed report on how this rig ran but haven't seen one yet.
SO......How'd it look? Is it fast enough to be competitive in some other class if there aren't enough of them at a given event? Any other pertinent info?
If I read it correctly, they aren't changing the prop shaft to 9/16" so would fitting an alternate wheel be an issue?
This is one of the two classes I'm considering for my "entry level" next season. The other one is the "Europhile" OSY400.
That is, if the civil war brewing in the APBA ranks (or so it appears by some other posts!) doesn't sink the whole boat by then!
PLAY NICE, YOU GUYS!!!!
Bob

[Racerkyle20]

Dave Anderson tested this rig at grass lake. Used boat owned by Jeff Brewster and motor owned by Anderson. I believe Dave ran the rig around 60-62ish MPH (correct me if i'm wrong someone).

The prop shaft right now is at 16mm with a two blade prop from Brinkman. you could run this motor with other classes (CSH, etc), but would need a different lower unit (profiled and 9/16 shaft). That's all I remember at the moment. Email Jeff Brewster or Dave Anderson for more details.

[STEVE FRENCH]

I am also interest'd in this class...........I'm too big for A+B.......25ssh is too fast for me(and I have a GOOD one!)......20SSH/CSH.....is for the young guns and those with the know-how/funds/builder connections ta git up front(And thats how it should be?).....DSH I can't load/set-up by myself...............Now I'm look'n at 302SSH.......I like the seal'd motor and prop swap............Here's my concern........Will there be any specs/limits on hull design besides weight?..........Or will we see inset transums and other "Trick" hull designs that are exspensive and ill handle'n at the upper limits of the class speeds?............With the 1 3/8"(really!?) height limit, I'm sure there will be some special hulls built with a ton of lift(rear/aft) and a handfull to drive.

Or will there be a spec on transum angle/in-set/, and propshaft angle?...(remember the FAST ASH hulls/set-ups that only a few skill'd pilots could handle?).........Don't mean ta be a "Kill-joy"........but if I can run a current/older CSH hull at 3/4" prop shaft depth (Where most were designed ta run).......I might be interested.........The 3/4" shaft spec is proven.......A 1" to 1 3/8" spec will have us look'n for ways to git the boat to lift higher at speed.(I'm already think'n about a inset transum.)
If I gott'a compete with "Trick" hulls (built to get around the height limit)...........I'll pass.........Or wait till I have the funds ta have Sam build one.

I like the class idea so far on engine+prop......just give some thought/ask or survey for help on.....the hull+set-up?....Gott'a believe the current CSH shaft height will werk fine?.......A deeper spec will only send us to da draw'n board to hack up current hulls........or build trick ones.
Easier now than once racers git a'hold of and "tweek".....errr meet........ the specs!...........Hind sight 20-20. ........ehhhh?

Jeff/59S..........?

Excited but cautious,
100N........Steve

[daveracerdsh]

302ssh

Let me get my thoughts together on a good answer to people's questions....will put some info up tonight or Tuesday. Still recovering from racing last weekend. 9US.

[Jeff Brewster 59s]

302 Rules, Cost and Test data

Here is a video of the first test:

http://www.youtube.com/watch?v=Jl5hYLYuK4g

It ran 58.6 mph on this run. Due to the boat's transom height we ran the boat tucked 3/8" to reach the 1-3/8" below number. Which explains why it was riding so flat.

Here is the engine cost break down:

302 engine costs:
Base cost 2095.00
Kill switch 40.00
Foot shaping 100.00
Block sealing 100.00
Exhaust cover 50.00
Re-ring 250.00
Propeller 150.00
Total 2660.00 + shipping


Here are the rules:
(the committee is considering an engine height change before these rules go into effect on Nov. 1 from 1-3/8" to 1")

Rules for the new Stock Outboard class
302 Super Stock Hydro (302SSH)

The general safety and racing rules / Stock Outboard racing and safety rules shall prevail in all situations not specifically covered in the following rules.
Intent: To have what could be our first ever “Stock” outboard class in APBA racing. This class shall lower barriers to entry, have very low start up costs and provide a place for new members to hone their racing skills before making a transition into the faster classes. It will also offer a class to current drivers that no longer wish to race at higher speeds.
Governing of class rules: Each year the Stock Outboard Chairman may appoint up to four members to join the Chair on the 302 Super Stock Committee. This committee will act as an advisory board to the SORC to keep the original intent of the class moving forward.
Hulls: Most current 20SSH, 25SSH or CSH type of boats should meet the specifications below:
a. After plane length shall not be less that 69”. (measured from the trailing edge of the sponsons to the trailing edge of the bottom)
b. A minimum depth measurement of 2” between the bottom of the hull and the bottom of the sponson at the trailing edge of the sponson.
c. A minimum bottom width of the hull measured between the sponsons and air traps of 35”.
d. A minimum overall boat length not to be less than 9’ 10”

The driver has the option to purchase a used hull, build one or buy a new one from recognized boat builders.

Engines: The Model 302 Yamato engine must be purchased from Ric Montoya of RPM Marine for a base price of $2660.00 + shipping. Before shipping or buyer pickup, Ric will ensure the following:

a. The following seals are in place:
i. Intake to crankcase
ii. Crankcase to block
iii. Block to exhaust port cover
b. All EPA paperwork has been completed.
c. An operational kill switch plug has been installed.
d. New piston rings have been installed.
e. The exhaust housing has been flattened.
f. The gear foot meets all 302SSH measurements with the stock 16mm prop shaft.
g. A 302SSH two blade propeller is provided.


Engine Specifications: All current model 302 specifications for the CSH and CSR classes apply except for:

a. The 14mm cylinder head must meet a minimum thickness dimension of 1.440”
b. Aftermarket steering bars and thrust brackets are permitted.
c. The fuel tank must remain stock. No fuel pumps permitted.
d. Gear foot minimum measurements. See the Stock Outboard Technical manual for the 302 Yamato engine gear foot diagrams:
W = 2.245 min.
Z1 = 0.200 min.
Z2 = 0.195 min.
Z3 = 0.155 min.
Z4 = 0.160 min.
Bulge thickness = 0.225 min.
Skeg radius (leading and trailing) = 7/64 min.
Nose cone leading radius = 7/16 min.
Top of gear foot leading radius (above nose cone) = 7/64 min.
Top of gear foot trailing radius (above cone nut) = 17/64 min.


Weight: Total as raced will be a minimum of 440 lbs.

Age: Minimum is 16 years with no maximum.

Speed: It is the intent of this class to have a maximum speed of 60 mph. If the class exceeds this speed, restrictions will be set to reduce the speed as needed.
Propshaft depth: The class will have a limitation on where the engine’s propshaft may be mounted. The propshaft location shall be the distance between the center of the propshaft at its aft end, and the planing surface. The measurement of the engine height shall be “as raced” with the engine turned straight (propshaft in-line with the fore-aft centerline of the boat). This rule does apply to boats running in straightaway trials. The prop shaft depth will be not less than 1 3/8” below the planing surface as explained above.

Propellers: All entries will race the 302 Super Stock propellers provided with the engines. An engine owner only owns the rights to “a” propeller and not a specific propeller. At driver’s meeting the day of the race all propellers from the entries in the class will be turned in to the race inspector (or a person designated by the inspector). The race inspector (or designee) will place one propeller each in a bag or box to conceal it. A driver will then pull a number from a hat that corresponds with the number on the box or bag. This will also occur in inspection after the first heat of racing has been completed.




Repair Centers: The following gentlemen have accepted the responsibility of being an authorized repair center for the class:
- East Jerry Davids Sr.
- Midwest Tom Johnston
- Northwest Ric Montoya
- Southwest Roger Carr
There will be only four authorized centers and the centers will be appointed each year by the Stock Outboard Chairman. They will provide all internal mechanical repair and refresh for the sealed portions of the engine. The estimated cost for a refresh is $250.00 plus shipping. A repair center may also inspect a previously raced 302 engine and detune the engine to make it legal for this class. Those costs will be determined by the repair center. Once their work is completed, they will re-seal the engine and therefore approve it for racing.

National High Points: All Stock Outboard rules apply except that only three entries are required to receive national points.

Records: All Stock Outboard records will be approved for the class. All straightaway records will be in the competition set up. Those drivers setting the first record will not receive APBA Hall of Champion points.

Once approved, all rules stated above will be added to the 2013 Stock Outboard Technical Manual, Safety Rules & Racing Rules.

Respectfully submitted by,
Jeff Brewster
Stock Outboard Chairman
April 30, 2012

(All rules have been approved by an affirmative vote of the APBA Board of Directors)





Need help getting started? Have questions? Call or email us for answers!

West - Dave Anderson 425-246-4710 daveracerdsh@aol.com

East – Jeff Brewster 330-842-2119 jeff_brewster_59s@yahoo.com

[madstork]

DSH I can't load/set-up by myself

Steve,

I will lift that D motor for you. I am the only DSH in TRORA. I need some
company! Come and pit with " Charley Fry's Flyers "!!!!

Sincerely,

Doug Follett
87-P

[daveracerdsh]

302 Super Stock Hydro

I was suprised as to how quick this thing accelerated...handled like a dream,,,was very fun to drive. Also....I have the first legal 302 SSH motor in shop ready to go...call me and I can ship it out to you.

[Tom Cronk]

Lower unit

Who is doing the lower unit rework????????
Tom

[guedo499]

Who is doing the lower unit rework????????
Tom

DO NOT TOUCH THE LOWER UNIT. Tom, pointed this out at a few races ago, this doesn't need to happen. Just because there are specs, doesn't mean you should grind the lower unit to it. If you're setting the gears up, that's a different story. The easiest way to inspect these things is not by using a measuring tool, but by comparing a new LU to one in question. If the one in question is altered any way, it is illegal. Keep them stock; 100% stock.

[STEVE FRENCH]

Keep the CSH set up specs.....PLEASE.........Another reason?

1. You won't have ta MOD(alter) a current CSH rig to run this class..........Instead of return'n one of my MOD rigs to STOCK configuration, I've thought about the one Swain won CSH at the Nationals (forget cut'n THAT transum to run 1'-1 3/8" deep!).........There are about 1/2 dozen good CSH/20SSH rigs available right now in the buy/sell section........Would be a shame ta have to go cut'n on them as soon as ya get one home!

Quote 59S> "It ran 58.6 mph on this run. Due to the boat's transom height we ran the boat tucked 3/8" to reach the 1-3/8" below number. Which explains why it was riding so flat." ......(Jeff, Do ya really want us ta wack another 1/2"-3/4" out of that transum?)

2. When a driver is ready to move up.....They won't have to change the hull and re-learn how ta drive it........
Just buy a CSH/OSY-400 prop and go....(prop and restictor in 20SSH).........(rewerk.....errrr "Blue-print" motor.....optional)

3. If need'd to step up/in at a race site to make a class in CSH/20ssh you can lend them your #2 wheel, pass the hat for entrie fees and their in and you have enough rigs for points....(Like at Franklin this Spring....Dana?)......Once a rig is alter'd or custom built to run up front at 1"-1 3/8" ......it will be a hand full if ya jack it to 3/4" to run the prop you lent them, and could take 1/2-1 hour to convert back(transum adapter+adjust steer cables)..........Then watch the fun as they barrel in'ta the corner with up to 11 other rigs in a boat set up........... their not use'd to!

4. You won't have ta watch team B+H show up at the first Nationals this class runs with a new/trick rig built to...(errr around) a.... 1"-1 3/8" shaft spec and have Brian leave the rest of the field a 1/2 lap behind and say'n WTF!......and spend'n the next couple seasons play'n catch up or walk'n away from the sport.....(No disrespect intend'd Sam/Brian)....PS-Brian, How many National Champion patches can ya fit on a pair of sleeves?

5. The look on Jeff 5P and T.J.'s faces when you tell them they have to build a new set of gages to check transum inset-to-afterplane length, prop shaft angle-to-plane'n surface, and transum angle, .........etc..........(Sorry about yer coffee/computer screen ......Jeff!).............Paper towel?

Use a spec prop to limit speed and seal the engine to limit racer tinkering.......but please don't "re-invent the wheel"....errrr BOAT?............

With deck ta deck racing and the acceleration out'a the turns with a limited/spec prop and sealed motor, this class will be a TON of fun ta drive and watch........
gar-N-t'd............ya'll!!!!

[daveracerdsh]

302ssh

We are still working on the final specs...keep the good input coming in. 9US

[Charlie Pater]

Suggestion - make the propeller claiming. If the props are mixed at the race, then how can anyone really test? They would never know how low or high to run or how much to kick in or out. Props do not come identical.
Claim price should be the cost of a new prop.
Props do get damaged during testing and even at the races. Claiming would solve that problem. There is no problem with having Brinkmen do the two blade propellers, but I believe people should know how the prop is going to behave PRIOR to any heat of racing. It really can be a safety issue.

[PittmanRacing]

Thank you all for sharing the information and perspectives on the 302 class. Here are a couple of quick thoughts and I wanted to point out some important assumptions being made which might not be true.
1. There are no “stock” outboard classes. Isn’t it amazing how much has to be done to a “stock” new motor to have a chance of winning? With all respect to the hard work of those who have dominated several of the stock classes, it shouldn’t take decades of collecting and special connections to ever have a chance of winning. The 302 class could be a great way to get new drivers into racing and keep them before they get discouraged.
2. Not everyone that is interested in the 302 class is new or is looking for a class that is slower. The speed of CSH is no issue to me. Rather, my kids are the racing priority as they are the future of our sport. I would like to go out and have some fun and a real chance of success without making it a higher priority than my kids’ racing program. Slower does not necessarily mean safer.
3. Steve French has made some excellent suggestions. The CSH engine height and boat specifications work. Don’t mess with them and create more potential issues in an attempt to “slow the boat down to 60mph”. Furthermore, it is important to make the transition from 302 to another class easy. To grow the class, boat count is necessary. One hesitation for new drivers is whether there will be enough boats to race. Keeping the boat specs the same allows a driver to buy/borrow an extra gear case and prop to realistically race in CSH. OR even race two classes.
4. Consider allowing drivers to using the 20SSH restrictor to along with a spare shaped gear case and prop to run 20SSH. If speed is an issue, 20SSH with a 302 is a better option than CSH.
Thanks for your work on this class!
Paul

[daveracerdsh]

Info

thanx to both of you for the info....this is still a work in progress.....we are getting close though......Dave

[Andrew 4CE]

Suggestion - make the propeller claiming. If the props are mixed at the race, then how can anyone really test? They would never know how low or high to run or how much to kick in or out. Props do not come identical.
Claim price should be the cost of a new prop.
Props do get damaged during testing and even at the races. Claiming would solve that problem. There is no problem with having Brinkmen do the two blade propellers, but I believe people should know how the prop is going to behave PRIOR to any heat of racing. It really can be a safety issue.

I like this method better on the surface... have not thought about it much yet. If you hand in your prop and get something else back no one will take care of props... props with dings and such could get passed around and be unfare to unlucky receiver . Claimer rule has same effect at stopping people from tweaking props... if something is dominating the commision can buy out the prop, or if something thinks a person is faster because of the prop they can buy it out so no one will put effort into the prop, but they will take care of it since it is theirs.