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WKA
West Series
The WKA West Super Series is
proud to announce its 2013 schedule and class structure.
With moving all of its rules, point structure, and
regulations to the World Karting Association, the WKA West
Super Series will be certified as a WKA Divisional Series.
Western-based WKA Manufacturer’s Cup Series racers will now
have the ability to earn their divisional bonus points for
the national Man Cup Series via the new WKA West Super
Series without having to add additional travel to their
budgets to attend the current divisional series east of the
Mississippi.
Also, with the partnership with WKA, the series will have
Kevin Williams as race director. Kevin recently worked as
the head race director of the PRI Rotax Red Bull Kart Fight
that WKA sanctioned with the fine people of the Performance
Racing Industry. Williams is also a former Manufacturer’s
Cup race director.
WKA will also assist in training the series technical
inspection officials with making sure the rules are followed
exactly as stated in 2012 WKA Technical Manual.
“We spent a lot of the 2011 season working with the WKA West
Series to make our rule book functional for West Coast
sprint racers, including adding the new Section 1000, which
comprises WKA’s West regulations. We are extremely happy to
see the WKA Tech Manual getting great use on the West
Coast,” stated WKA Vice President Dan Stowell.
The series will comprise of six races at some of Northern
California and Nevada’s most prominent tracks. With the
price of fuel still causing travel cost concerns, WKA
selected tracks that are within a three-hour radius.
Practice will be held on Saturday prior to the races, which
will be held on Sunday.
2013 WKA West Super Series Schedule:
March 17 - Allstar
Karting Prairie City
April 21 - Kinsmen Kart Club Dixon
May 19 - Atwater Kart Club
June 23 - Northern Nevada Reno
August 25 - Monterey Bay Karters
September 22 - Blue Max Davis
October 20 - Little 99 StocktonClass Structure:
Kid Kart 50cc
Jr 1 Comer
KPV 1
Mini Rok
KPV2
Tag Jr
Jr Clone
Sr Super Sportsman
Sr PRD Spec
Tag
Tag Masters
80 Moto Senior, Masters
125 Moto
Box Stock Clone
*Classes subject to elimination with low entry counts after
2nd Race.
Any questions, you can always
email the series directors at wkawestseries@aol.com
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All clone classes in WKA West
regional series will follow these specifications;
JR 1 CLONE
Age 7-12. Weight 255 Lbs. Tires 4.5 YLC. Will run .500 purple
intake restrictor.
JR 2 CLONE
Age 12-15. Weight 320 Lbs. Tires 4.5 front / 6.0 rear YLC. Will
run .550 blue intake restrictor.
SR CLONE
Age 15 and up. Weight 360 Lbs. Tires 4.5 front / 6.0 rear YLC.
No restrictor
SR SUMO CLONE
Age 15 and up. Weight 400 Lbs. Tires 4.5 front / 6.0 rear YLC.
No restrictor
711 CLONE CLASS ENGINES
Section 711 describe the specifications for clone class engines.
These are 6.5 horsepower "Clone"
Engines only. All parts must be factory production parts unless
otherwise specified in this manual. No
Machining or alteration of parts permitted unless specifically
noted. All parts are subject to be compared to known stock parts
+ or - .005". No reading between the lines. If it is not in the
rules, it must remain stock. Additional rules may be added at
any time as WKA West moves forward with this program
UNLESS OTHERWISE STATED ENGINE WILL BE TECHED AS RACED.
711.1 CLUTCH
All classes must run a shoe type clutch. Drum may be stamped or
billet steel. No cooling
Fins may be either machined into drum or added on. Disc clutches
are not allowed.
711.2 FUEL TANK
Must be floor mounted
711.3 CARBURETOR
Carburetor requirements: Huayi OR RUI*ING carb only. Carb to
intake sealer is gasket only no
other sealer allowed. Choke must be as supplied from factory,
but may be fixed to stay in open
position. Venturi .615” NO-GO. Rear carb bore .751” NO-GO. Main
fuel jet .042” NO-GO. Low
speed jet size is non tech. Low speed jet may not be drilled
through to outside air. Stock
emulsion tube must be used and unaltered, .066’ max ID (no pass
through). Side holes in E-Tube
4 holes max in bottom section and 20 holes max in top section.
Minimum E-Tube length 1.092”.
Throttle shaft - .115” minimum. Butterfly - .037” minimum.
711.4 FUEL PUMP
Any pulse type pump is allowed. Fuel pump must be pulsed from
the valve cover.
711.5 AIR FILTER
Aftermarket air filter ok, aftermarket air filter adapter
allowed (max length of 1.375). Loss of air filter during a race
does not
constitute a reason for disqualification
710.6 BLOCK
Block must remain stock, Maximum bore is 2.685. No piston pops
up allowed. Mating surfaces of block is
Non tech. Surfacing to correct gasket failure and meet cc check
is allowed. No welding on block
711.7 CYLINDER HEAD
No porting, grinding or modification. Valve seats may have three
angles: single 45 degree valve face and single
30 degree top,and 60 degree botton. Intake seat 0.897" maximum.
Exhaust seat 0.862 maximum. Surfacing to correct gasket
failure and meet cc check is allowed. No welding on head. Head
gasket must be stock configuration, 0.08 min to .040 max. Sealer
may be used
711.7.1 COMBUSTION CHAMBER VOLUME
Minimum volume 26.5cc as measured through spark plug hole using
the LAD tool with head on
the engine. See Section 504 for instructions how to use the LAD
tool to check cylinder head volume.
711.8 VALVE TRAIN
Valve train will remain stock. No polishing. No grinding. No
alterations. Stock OEM rocker arms only.
Stock valve springs only. Maximum wire diameter is .071".
Maximum spring pressures are 10.8 lbs @
height of .850 and 18 lbs @ height of .650". Spring retainer
measurements - exhaust 0.250" MIN, intake 0.230" MIN. Intake
valve diameter - 0.985" + or - 0.005" with 45 degree angle.
Exhaust valve diameter - 0.948" + or - 0.005". Lash cap on
exhaust valve only. Seals allowed on intake an exhaust valves.
Minumum valve spring installed height is 0.815". Valve spring
shims allowed.
711.9 ROD
Stock rod only. Rod may be honed. no other modifications
allowed.
711.10 PISTON AND RINGS
Stock piston and rings only.Ring gap may be filed to fit
7
11.11 CRANKSHAFT
Stock crankshaft only;no modifications. Crankshaft journal is
1.180" maximum and 1.168" minimum.
Stroke is 2.123" plus 0.010" or minus 0.010".
711.12 CAMSHAFT
Camshaft must meet these specifications. Maximum running lift on
exhaust is 0.242" taken on valve
spring retainer at zero lash. Maximum running lift on intake is
0.238" taken on valve spring retainer with zero lash. Intake
lift at pushrod - maximum - 0.225", minimum 0.215. Exhaust lift
at pushrod – maximum 0.232", minimum 0.222. Duration check for
intake and exhaust lobes. Intake duration of 218.5 degrees at
0.050" lift / 85.5 degrees at 0.200 lift. Exhaust duration of
221.5 degrees at 0.050" lift / 96.5 degrees at 0.200" lift (all
checks will allow +2 degrees for wear and gauge and wheel
variances.
711.13 FLYWHEEL AND IGNITION
Ignition coil must be stock, but ignition timing is non tech.
Coil may be shimmed to align with magnet.
Flywheel must be billet steel, @ 5 lbs 3 ozs. Plastic fins must
remain stock. Flywheel key is non
tech.
711.14 HEADER PIPE
Maximum length is 15" and minimum is 10". Header must be single
stage maximum 0.750" outside
diameter, 0.635" ID inside measurement. no aftermarket coatings
of any type allowed. 1 header gasket
only. Sealer is permitted.
711.15 MUFFLER
RLV Mini 91 Silencer Requirements: Part #4117 Overall Length
5.470" minimum +/-.005" - 5.600"
maximum +/-.005". Threaded Nipple .685" maximum ID (ID as Mfg.
NO Grinding, Reaming, or Polishing Allowed). Rear baffle holes
.1285" maximum, inner baffle holes .0965" maximum. Silencer must
be utilized as produced, with no modifications or alterations
permitted. Strap or brace required to silencer for support, and
to insure silencer does not turn and unscrew.
711.16 STARTER
Pull starter must be present and remain stock. Pull starter may
be rotated for better cranking angle.
711.17 ENGINE OIL RECOVERY SYSTEM, FILL AND DRAIN PLUG
Hose ran from valve cover breather hole, must be run to a catch
can. Oil fill and drain plugs must be
safety wired along with bottom two side cover bolts.
711.18 OIL SENSOR
Oil sensor may be removed.
711.19 GOVERNER
Governer and governer components are non tech.
11.20 SIDE COVER GASKETS
2 gaskets maximum.
711.21 AFTER MARKET COATINGS
No aftermarket coatings of any kind are allowed except on blower
housing shroud.
711.21 SHEET METAL
All sheet metal must be used as supplied with engine.
FUEL
Fuel for all clone classes will be pump gas
CLAIMER
Claimed motor will consist of complete motor less flywheel as
supplied from BSP. Amount of claim is $300 cash only and could
be
subject to change with the market value, CLAIM CONSENT forms
must be filled out and signed with entry form in order to
recieve series points.
CLAIM form will be filled out, signed and put in a sealed
envolope along with $300 cash by RACER, then given to Tech
Official prior to start of Main Event
After checkerd flag, envelopes will be opened and handed out
acordingly. Claimer must be a DRIVER in same class, Only one
claim per season can be made by a competitor, Claimed engine
will be subject to TECH done on that day, If CLAIMED motor is
found to be ILLEGAL or DAMAGED in race, the CLAIMER will be
given option to proceed with or withdraw thier claim
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