Products 1 - 324 - The World Karting Association (WKA) is the largest sanctioning body for kart racing in North America. The WKA was founded in 1971 and is.
'Dual rear brakes does NOT increase braking ability (only 4 wheel brakes does that)' Oh my dear Captain - you know I am one of your biggest fans. I know you to be an educated man and understand the physics of the system in that we are turning mechanical energy into heat. Making that conversion rapidly within a given distance without wheel lock is the key to threshold braking. If you increase your ability to absorb that heat by a factor of two. Or in my estimate of turn one at Summit Point an easy ten yards. I have not done the math but can show you on MyLaps when I made the adjustment with feeler gages, hex wrench and patience to make the pads contact equal.
- WORKSHOP MANUAL + PARTS. Such as running a manually activated decompression valve on the cylinder head to enable push starting, and not using a clutch. Selettra analogue ignition View and Download Raket 95 owner's manual online. Two stroke engine. Selettra analog Flywheel Selettra 113,9 mm Starter system Electric, integrated starter.
- September 11, 2015 by admin CONCORD, NC - Following the recent Board of Trustees Meeting in Pittsburgh, Pennsylvania in late August, significant progress is being made with regards to the 2016 edition of the WKA Technical Manual.
Four wheel brakes do indeed work even better than dual calipers as they have more tire contact and more heat capacity. But front brakes add considerable monetary cost, weight, complexity and the most undesirable cost, inertia. But the real reason is safety, And what we are really talking here is the compromise - having the inherent redundancy in front / rear brakes - compensated by adding a secondary hydraulic system. working on a 'final proposal' Draft still, I just could not keep quiet. Who Loves you Jack! B-Man, There is a lot of talk on here to say either 'you are partially right' or 'you are partially wrong' You are correct that with patient and precise adjustment, the dual rears compensate for heat buildup in the rotor faster and may be more efficient in braking. But that is IF and ONLY IF you can avoid wheel lockup.
The solid rear axle and no suspension severely hampers our ability to avoid wheel lockup. Regardless of cost, the effectiveness of breaking ability is significant higher with 4 wheel brakes as opposed to single or even dual rears. Safety is a behavior, not an item. (I know you agree with this and practice it) Got the committee working on the proposal. Peewee, They didn't invite me, but that's okay. As long as it gets done.
Yes, but better yet is simply extending the length of the lever arm 8' - 10' with a knob or handle would also do. I cannot speak for others but I can reach the top of my master cylinders in the driving position. I have also considered a 2x4 on a hinge to scrub on the rear tire, a boat anchor and parachute as well. I have access to two surplus JATO rocket motors but they are bulky and require permits. One thing at a time Mike, one thing at a time. Ya but what do you have to get Coke and half a TV dinner off my keyboard? Ya but what do you have to get Coke and half a TV dinner off my keyboard?You forgot to say off your beard too, Bob.
My take on the dual braking. In past years, my boys have ran both the TaG class and the 125cc Honda Shifter class. Both karts had 4 wheel brakes. Both karts could stop on a dime, and give you change. Unless you are used to the usage of the 4 wheel braking, IMO they would slow a 4cycle kart down, lap time-wise anyway. 4cycle racing is momentum racing because of the lacking HP compared to other classes.
The drivers who can us momentum to their advantage are usually the racer up front. My guys did not have the trouble transitioning from one kart to another on the same day, but they have both raced for many years. And this is the one up for debate. Scenario - guy having 4 wheel brakes is leading the race, comes up to a back marker to lap him.
The back marker does not see him coming and cuts him off entering a corner. Following guy stomps on the brakes, that kart slows dramatically, and the kart following him runs him over because he does not have the 4 wheel brakes.
Take what you might from this, but that has always scared me about mixing karts w/ 2 and 4 wheel braking ( not the dual caliper, one disc braking ). All this is JMO and up for discussion if you like. I feel the dual braking on the rear is very cost effective for the possible safety feature it could provide. All of us never hope it comes into pay with us or our kids driving, but if dual braking IS needed you need it NOW not later. Safety of the driver and competitor should NEVER be compromised no matter what the cost.
I thought I saw a picture of a RR kart somewhere recently that had a 'mini light' rear brake disc on it. Is that legal? Just a question. Dave E, Let me take a second to respond As for #1, yes absolutely momentum racing, but that doesn't mean you don't need good braking. I know that I am faster when my brakes are tuned up and working well. If you can get your entry speed down quicker, then you can get back on the throttle quicker too.
#2, this almost perfectly describes the situation we have with racing with Tags, they over brake us on entry forcing us to lose momentum. Dale, We had a meeting amongst the many 4-cycle guys here (list too long) at the NCCAR WKA national race last summer. We ironed out between ourselves the new class structures for the 2015 season, and the rules for the GC class introduction into the NRRS. It was a very productive meeting, but we did make assumptions about the GC rules that were not in fact in place. These are the rules that would keep the class 'slower' by limiting the aero improvements over what would normally be run in a GC class.
Okay, So here is the concept of the proposal. Dual brakes would still be required on all 4-cycle classes except the Pro-Gas Animal (i.e. The GC rules will be fixed up as well. One of the issues that arises is: suppose a GC racer shows up to race the Pro-Gas class, then would like to maximize the weekend and race Limited Mod with his GC kart. How would he meet pre-tech for this class? I think this is a valid 'loophole' to deal with.
So, after thinking about this, I propose the following as a solution: Dual brakes will be required on all 4-cycle karts with the exception of those karts that meet the Gold Cup bodywork requirements (no full floor pan, 42' wide nose minimum, 14' high nose maximum, etc). This should keep our purpose built (i.e. Faster) RR chassis with dual brakes and still allow the slower GC karts to race in the races with single brakes. B-man, Thanks for the video link. If you were a sports car fan in Oklahoma in the 60's and early 70's, the Lake Garnett Grand Prix, Lake Afton Grand Prix and Ponca City grand Prix are legendary. All were ran in city parks, all on lakes.
It still gives me chills to drive these courses today and remember the races and racing legends I saw there. I wish the KART organization could resurrect the Ponca City Grand Prix with and enduro kart event. If I could only ran three races for the rest of my life, it would be those three.
Ben Hooper P.S. The old War Bonnet Raceway short course (1.1 miles) pavement is still there, but now it's a mobile home park(only in Oklahoma). Great racing there as well. Okay, So here is the concept of the proposal. Dual brakes would still be required on all 4-cycle classes except the Pro-Gas Animal (i.e.
The GC rules will be fixed up as well. One of the issues that arises is: suppose a GC racer shows up to race the Pro-Gas class, then would like to maximize the weekend and race Limited Mod with his GC kart. How would he meet pre-tech for this class? I think this is a valid 'loophole' to deal with. So, after thinking about this, I propose the following as a solution: Dual brakes will be required on all 4-cycle karts with the exception of those karts that meet the Gold Cup bodywork requirements (no full floor pan, 42' wide nose minimum, 14' high nose maximum, etc). This should keep our purpose built (i.e. Faster) RR chassis with dual brakes and still allow the slower GC karts to race in the races with single brakes.
JackWe did have some issues at Daytona on day 1 with the new Briggs Pro Gas Gold Cup class. These issues were resolved in tech and there were no issues on day 2 to my knowledge. The issues came up primarily because the tech update WKA posted before Daytona did not clearly define the rules for this class. These rules have been fixed and approved by the trustees. The following rules for the Gold Cup class were submitted for the tech manual that is currently being printed and we will see in about 4 weeks, as follows.
Briggs Pro Gas Gold Cup Final 1 & Final 2 Age 15 & up Chassis and bodywork must meet Gold Cup rules Minimum Nose width 38' ( current and available in 38-42 ' from G-Man kart works ) Maximum Nose height 17' measured per Gold Cup rules ( measured as raced with kart on level ground ) Driveline 219 or 35 chain and belt drive allowed Pro Gas motor per WKA tech rules, Tech manual section 705 Exhaust header RLV 5511 only per Tech manual section 705.2 Dual brake system mandatory Open tires Minimum weight 370 lbs. The above rules are what was submitted for the 2015 Tech Manual and this Class should be listed as a WKA national points class for 2015. Now for my thoughts, We currently have the first race for the 2015 season behind us, finishing positions and points for the race in the books, is it fair to those of us that participated and spent time and money to show up at Daytona to race in this class to scuttle or modify the rules for the 2015 season? I would suggest a review of the class and rule change proposals for the 2016 Tech Manual would be more appropriate. The above Pro Gas Gold Cup class, Stock Animal, Clone and LO 206 ( NRRS rules ) are all legal entries in the Animal Ltd Modified class at 370 lbs. This was approved by the trustees also with the intent to give the above classes a second race to enter each day and the different engine Packages would be legal to run in this class. ( The removal of the Dual Brake requirement would exclude the Pro Gas Gold Cup Entry.) The Briggs Animal Masters 410 class no longer has a maximum kart weight, Thus allowing anyone 40 yrs.
And above to add what weight as needed to participate. Dual Brakes Systems Tech Manual 355.2, The rule is by far not perfect and some specifications for brake systems need to be addressed ( a mini light brake is definitely not designed for road race application ). From a safety viewpoint I consider the WKA rules to be a step above other racing groups that do not require any form of dual or back up system. Many of the tracks we race on are designed and used for Indy Cars, Nascar, SCCA, Motorcycles, and yes some are used for bicycle racing and all my friends even bicycles have dual braking systems. Just think of the tracks we race on and the run off areas where we reach high sustained speeds of 60-80 mph, Concrete walls, Steel guard rails are in many cases the norm. Is the Dual Brake rule perfect? -No, Can we fix it?
-Yes, Should we drop the requirement for the Dual system to gain a few entries and save someone a few bucks? You folks can call that one, I know for a fact that if the rule was changed and we lost a dear friend because of it, how I would feel. Thanks for reading. Jerry Cole WKA member,number 670 ( been around awhile, joined in 1972 ) WKA Trustee District 6 Michigan, Ohio Currently participate in Road Race and Gold Cup. Briggs Pro Gas Gold Cup Final 1 & Final 2 Age 15 & up Chassis and bodywork must meet Gold Cup rules Minimum Nose width 38' ( current and available in 38-42 ' from G-Man kart works ) Maximum Nose height 17' measured per Gold Cup rules ( measured as raced with kart on level ground ) Driveline 219 or 35 chain and belt drive allowed Pro Gas motor per WKA tech rules, Tech manual section 705 Exhaust header RLV 5511 only per Tech manual section 705.2 Dual brake system mandatory Open tires Minimum weight 370 lbs. Ok, by reading the above proposed (final?) rules, if my kart already has a 38' wide body and not higher than 17', all I need to do to make it legal for this class is to remove the floor pan from between the side nerf bar and outside frame rail (the full pan to the rear is OK). Jamie, I would VERY strongly suggest grabbing the 2014 WKA tech manual and Dec 2014 updates; and review the entire Gold Cup chassis requirements.
And of course, when the 2015 manual comes out do the same. I'm not a 4 cycle competitor, but I suspect there's more to it then just nose and belly pan.
Jerry and I had a very long and educational conversation last evening. I learned a lot about the 4 cycle world as a whole, and I truly appreciate the time he took to explain a lot of the various issues. I also appreciate him posting the Pro Gas Animal rules here prior to the issuing of the 2015 manual. (Geeez, I hope they get it right at the printers, right Jerry??!!) I will also support you folks with respect to the requirement of the dual brake setup. That would also include Yamaha Sportsman Sprint, Yamaha Sprint and WKA Sprint. I will also take some responsibility for the original proposal and was wrong in making the assumption of what you folks wanted. It was an honest attempt to increase participation and bring WKA road racing more in line with the rest of the USA.
Bernie, we hope the addition of Pro Gas Animal will bring in some new folks. And in listening to most of you, the addition of the second rear brake system isn't a big deal at all and is a requirement very easily met. I'd suggest leaving the class as is for 2015, and as Jerry suggests start putting ideas together for 2016. As far as the CIK and Tag classes. A bit of clarification, CIK is a chassis type, NOT a class.
Much like sprint enduro or laydown are chassis types, not classes. What you're referring to is Tag, Tag Heavy and Stock Leopard all of which use CIK homologated chassis' and bodywork.
(FYI, Stock Honda and 125 Shifter also run CIK chassis'. But are NOT part of this issue of course). You ask where do we put them? I assume you're asking what race group they run in at WKA National Road Race events? That has already been established at Daytona, so if you review the Daytona 2014 entry blank you'll be able to see where everything fits. Sure hope that helps, and thanks again Jerry for your time. Clark Gaynor Sr.
WKA NRRC member. Ok, by reading the above proposed (final?) rules, if my kart already has a 38' wide body and not higher than 17', all I need to do to make it legal for this class is to remove the floor pan from between the side nerf bar and outside frame rail (the full pan to the rear is OK). Correct?Please refer to the 2014 Tech Manual,Page 48, Section 258.2, Figure 258.3,and 258.3 for nose cone guidelines.
Nissan Leaf Manual 2015 Uk
Section 258.6, page 49 covers the belly pan rule. Also please check the Pro Gas engine rules specifically section 705.1, page139. This covers the plastic fan cover attached to the blower housing and must be stock as supplied from Briggs, also the 3' clearance rule from the fan cover to the side panel of the kart. I will also support you folks with respect to the requirement of the dual brake setup. That would also include Yamaha Sportsman Sprint, Yamaha Sprint and WKA Sprint. I will also take some responsibility for the original proposal and was wrong in making the assumption of what you folks wanted. It was an honest attempt to increase participation and bring WKA road racing more in line with the rest of the USA.'
I am confused. Well more than normal are you saying the matter is settled and I need not complete what I was writing up per our emails??? CIK and TaG were understood as having their own body/seat/frame rules. Sorry, again I didn't mean to confuse the issue. But it appears Jerry has spelled out what the 2015 tech manual will entail for the Pro Gas Animal class. Jack has also posted a proposal with some brake rule changes.
And of course Bernie any additional ideas are always good. I encourage all WKA road race members to get involved with ideas.
The Pro Gas Animal class and it's various points are very clearly a sprint enduro four cycle issue. You guys have got WKA representation among your group. Jack a member of the NRRC and Jerry one of our trustees. I don't need to muddy the water. You are also correct, Tag, Tag Heavy and Stock Leopard are being handled by other members of the committee and the competitors which run those classes. So there is really no need to address those any further. Just one small issue.
If it is decided that Pro Gas Animal needs only a single brake system, there must be some way for pre race safety tech to tell them apart from the other Animals. And some way to avoid them running in a class which they are not eligible to compete in. Have fun, Clark Gaynor Sr. I'm getting lost here.
There has often been some sort of attempt to entice racers from other series, here, GC, to come and join us. Can't say over the years I have seen a great deal of success with that, seems like their busy trying to save their own series, but hey, what do we have to lose. What I don't see is backing off on saftey rules we put in for good reason, and I really questioning why your now trying to mix the slowest 4 cy classes, with the fastest. Anyhow, lets look at something, well, not new, in fact needed for a very long time. Like everyone back then, my kids had to wait till they turned 12 to start RR'ing. Who decided they couldn't handle it? I mean really, where did that come from?
Our winter business is building 120 snowmobile engines, have you ever watched that? They go off jumps, big jumps. They clime ski hills, and come back down and they start at 4. Same with MotoX.
The problem and I see this many, many times, even a hardcore RR'er has a kid, can't wait to get the kid started, but the kids has to start somewhere else, Sprint or oval. Couple years to get started, now he's working his way up and by 12 there so caught up in that, they ain't comin RR'ing, and dad ain't coming back either. CES has run a Novice class for must be 10 years now, start at 8, no problems, don't remember any serious incidents, and those kids went on to be his Jr's, which will be his adults. All this GC talk, be honest here, how many racers can afford to do TWO National traveling series? Maybe you get a few to try the big tracks, but even if you get one or two to convert, well now GC has lost them, your just moving the problem around. You need to bring in new blood and you need to start at the bottom. In regards to the proposal to delete rule 355.2 DUAL BRAKE SYSTEMS requirement for Road Racing.
This rule to remain in force as written with the following class exceptions and particulars enforced. 1) A minimum rotor diameter, thickness and pad size in square inches be established. 2) Exceptions to rule 355.2 DUAL BRAKE SYSTEMS as follows CIK chassis conforming to established WKA CIK rules. Pro Gas or Yamaha Sportsman only. Engine clutch only. #35, #219 or belt drive. Open wheel and tire TaG Chassis conforming to established WKA TaG rules.
Stock Leopard. Engine clutch only. #35, #219 or belt drive. Open wheel and tire Gold Cup chassis per WKA Gold Cup rules. Pro Gas engine. Engine clutch.
#35, #219 or belt drive. Open wheel and tire - Benefits: Four potential crossover classes. Other issues: Strictly enforced chassis rules may limit top speed.
Establishment of age and weight within these classes needs to be decided. It is suggested for the first year we should establish one only for each of the four to start and see how they develop. Gold Cup has already been established. Anyhow, lets look at something, well, not new, in fact needed for a very long time. Like everyone back then, my kids had to wait till they turned 12 to start RR'ing. Who decided they couldn't handle it? I mean really, where did that come from?
Our winter business is building 120 snowmobile engines, have you ever watched that? They go off jumps, big jumps. They clime ski hills, and come back down and they start at 4. Same with MotoX.
The problem and I see this many, many times, even a hardcore RR'er has a kid, can't wait to get the kid started, but the kids has to start somewhere else, Sprint or oval. Couple years to get started, now he's working his way up and by 12 there so caught up in that, they ain't comin RR'ing, and dad ain't coming back either. CES has run a Novice class for must be 10 years now, start at 8, no problems, don't remember any serious incidents, and those kids went on to be his Jr's, which will be his adults. All this GC talk, be honest here, how many racers can afford to do TWO National traveling series? Maybe you get a few to try the big tracks, but even if you get one or two to convert, well now GC has lost them, your just moving the problem around.
You need to bring in new blood and you need to start at the bottomBob, This topic is on my agenda for this year. It will be coming up soon, as we want to hook them for life! There is too many other things that capture their attention by the time they are 12. Not sure what the answer is, but just like the brake topics, I will be asking for input from everyone on this subject.
I hope you feel this is a step in the right direction for the committee process. 'I'd run some big track stuff if i didnt have to have the dual brakes' So those guys that said that the dual brakes were their excuse for not running, you change the rule, they will change their excuse. I can see both sides of the argument. Say i have a CRG with the ceramic brake disk, Nothing is a much better braking system than that. Stupid expensive, so i need a second safety caliper? In true terms probably not. But would the tech guy know this?
Probably not, all he knows is there is only ONE caliper, so the dual rule is great from a tech stand point. To me the dual is more of a pain to do for a one off race.
I would just pony up and run front brakes too. But I have the parts. Just mounting them up. Meh, one day.
Kendall system analysis and design instructor manual. But thats me. Who among us will look for tech sticker from the road race series on the so called gold cup body at Jacksonville? I am thinking about bringing mine with a LO 206 motor on it. I should be able to stop it if needed at the end of the long Jax.
Straightaway with the dual brakes. The kart has a G-Man #3 nose ( 38' ) & body kit, a Gold Cup tech sticker from the last Gold Cup we used the kart and now a Daytona tech sticker. With a collection of tech stickers and several rolls of high speed duct tape I might keep the nose in one piece for the season.
CONCORD, NC - After months of construction, World Karting Association is proud to announce the launch of their new website. The new site should be more navigable and easier to follow, no matter what category followers choose. Making the website easy to navigate, as well as showcasing the many sponsors WKA has, were two of the many high priorities for their customers. In the coming weeks, added detailed information regarding the 2015 edition of Daytona KartWeek will appear, as well as info regarding the 2016 version of the WKA Tech Manual, all major projects World Karting is working on at present, in an effort to get the information out to their customers, as well as the rest of the karting world as quickly as possible. To view the new website, be sure to log onto www.worldkarting.com.