2.6 diesel trucks and turbo rules. July 02, 2014 12:24PM
The WNY ProPulling series members had agreed to follow PPL rules for the conveinence of it's pullers to pull else where . This presents a problem because of gross negligence in interpretation of said rules. The rule states; A stock map width enhancement (MWE) groove must be inside of neck area where intake cover is measured. No MWE groove will be allowed that has a width greater than .200. ALL provisions allowing air into the wheel other than via the bore and the MWE groove are prohibited.
So all these turbos that have the MWE groove turned down into the exterior(outer) part of the inducer bore(mwe has been machined the opposite way) are illegal by there own rules. This exposes the turbine fins to the outer portion of the turbo and therefore air is being sucked in other than the bore or via the STOCK MWE groove INSIDE neck area.
The WNY ProPulling Series board and tech officials have decided to follow the rule as written. Any turbo charger that does not have stock MWE grove(modifications to get to .200 is acceptable) with in the inducer bore will be considered illegal, your turbo builders know damn well what what this rule means. We had better not be able to see any portion of the inducer wheel outside of the 2.6 bore period.
We are sorry if this causes people to drop out or to purchase a correct intake cover but this BS needs to stop somewhere and and it stops now. You want to run a 2.8 or 3.0 charger then that's what YOU should have adopted for rules. Again no turbine fins shall be exposed to the outer diameter of your turbo the mwe doesn't not extend downward beyond the inducer bore. We will not follow PPL s said interpretation of this rule. Furthermore if this continues to be a problem for pullers and builders to understand we will be forced to adopt smooth bore and no mwe groove for next season. So play nice this is supposed to be fun!
Sincerely, Mark Gabel WNYProPulling Series president. My contact info is on website as well as all tech officials.
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Re: 2.6 diesel trucks and turbo rules. July 02, 2014 12:53PM
Well said Mark. We will follow ppl rules as they are stated not as certain people have decided they want them to read. I will do what I can to answer anybody's questions or concerns. As Mark stated our information is on the website. Matt Hoffman WNYPF head tech official.
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Re: 2.6 diesel trucks and turbo rules. July 02, 2014 11:56PM
Who are these certain peaple you are refering to? Johnathan Mears? He is the PPL technical director and the builders you refer to get approval for their build from him. Just sayin
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Re: 2.6 diesel trucks and turbo rules. July 03, 2014 12:01AM
Way to put your foot down. I however do not agree that it is being done with the season already started. Where does the rule changes stop to accomodate people. You should have done your homework prior to the start of the season and made the change then. Not cool after clearly someone complained and is now getting their way after your season has begun and clearly the wrong person won the class. You have now gone down a slippery slope.
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Re: 2.6 diesel trucks and turbo rules. July 03, 2014 12:50AM
I couldnt agree more with the guy in the comment above!! Since you people ( The president and tech officails) feel asleep and didnt CARE or WORRY abou this in the winter time!!!! If you guys are allowed to change rules during the season. Does that mean that we as pullers are allowed to do the same?I bet there was some cry babies that made this rules come into effect cuz they couldnt build COMP truck.
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Re: 2.6 diesel trucks and turbo rules. July 05, 2014 12:30AM
I totally agree smooth bore is the way to go and i hope all PPL organizations go with it
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Re: 2.6 diesel trucks and turbo rules. July 03, 2014 03:12AM
To swampy and 05cummins: As I read it, they are NOT changing the rules. They are merely saying that anyone who didn't build to the proper rules needs to comply, regardless of what another organization will let slip by. No different than someone running the wrong tire size and nobody catching it at the first pull, it's still illegal!
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Re: 2.6 diesel trucks and turbo rules. July 03, 2014 03:57AM
What other organizations are letting things slip by? If PPL approves 2.6 turbos made by precision,harts,hasley,or whoever that are cut this way how are they not legal? Is it right acording to the way the rule is written? Depends on how you interpret the rule. If the man at PPL says they are legal and you are running PPL rules then they are legal.
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Re: 2.6 diesel trucks and turbo rules. July 03, 2014 07:30AM
Not to hijack the thread, but when will the Marilla results be posted on the website? It is hard to build a fan base when results and photos are hard to come by unless you attend every pull?
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Re: 2.6 diesel trucks and turbo rules. July 03, 2014 02:19PM
It's not just WNY that believes this rule is blaintly being violated, just PPL has over ruled some of there techs declaring this bs legal. We will honor our commitment to follow there rules for the season for the sake of our pullers. However next season there will be no interpretation necessary, the will be no slots of any kind allowed smooth bore only , you abused it you lose it. If people bothered to actually read the rules, they would see why it is question, so we will eliminate the problem entirely for 3-5 more years.rules are made to keep competition ,close,fair,safe and fun. You don't have balls enough to post your name nobody really cares what ??? Thinks. WNY adopted PPL rules, PPL however chose to in force them differently, right or wrong doesn't matter at this point. Like I said we will honor our commitment to follow this season. These turbos are illegal as the rule is written,but evidently not as it has been chosen to be interpreted an admitted fact by PPL officials from more than 1 club. Mark Gabel WNYPPS president.
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Re: 2.6 diesel trucks and turbo rules. July 03, 2014 03:17PM
After they ppl posted the new rules for the year they realized they just made all the current turbos illegal. Instead of changing the rule book they just said the turbos will still be legal even though the rules say otherwise. Diesel trucks should have went smootbore years ago instead of continuing to make small changes ever year and letting it get to were it is now.
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Re: 2.6 diesel trucks and turbo rules. July 05, 2014 02:41AM
We have a similar problem here. Another organization adopted rules from our existing class problem is they don't check anything except if the plug will go in the bore or not, so there are a lot of illegal turbos being run with features like what you describe. Then those guys come to one of our pulls and bitch that their turbo is legal because the other org didn't disqualify them over it even though it plainly violates the rules. The idea of turbo limitations has always been to limit the power on a class somewhat. PPL has allowed a lot of things to slide in regards to turbo rule enforcement because many of the class sponsors are turbo builders and they don't want to step on the toes of where money comes from. Instead of limiting the power on the class all they have done is made from where a $1000turbo used to be competitive to where you have to have one with $5000 worth of work done to it to be competitive. Again this is good business for the sponsors/builders. History repeats itself and this is pretty much exactly like what happened in superfarm 10-15years ago. From an enforcement standpoint you really have 3 effective options: Box turbo, Smooth Bore, or No altered, re-machined, modified, or custom cast compressor covers.
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Re: 2.6 diesel trucks and turbo rules. July 05, 2014 07:05AM
Have to pay to play.
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Re: 2.6 diesel trucks and turbo rules. July 05, 2014 07:26AM
You may want to seriously consider the ramifications of making the class 2.6" smoothbore, this would create a drastic drop in power as the current turbochargers are typically 3.2-3.4" smoothbore now with a floating bore. Each diesel truck class is subject to this problem of wheel/MWE manipulation, including the Workstock 2.5" turbochargers. There needs to be a line drawn in the sand, this issue could easily unravel the current success and popularity of diesel truck pulling, and it certainly is driving a stake between the average competitor and the upper echelon of the class.
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Re: 2.6 diesel trucks and turbo rules. July 05, 2014 09:54PM
Turn the 3.0 into 4.1 smooth bore, 2.6 into 3" smooth bore.
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Re: 2.6 diesel trucks and turbo rules. July 06, 2014 05:51AM
They could also be kept on a t4 housing.
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Re: 2.6 diesel trucks and turbo rules. July 06, 2014 08:33AM
IMHO in retrospect that is one of the silliest thing SF did. If you are going to allow charger frames that have T6 housings, what is the point of limiting them to T4 housings? So the big turbo shops can cast special housings and charge big $$$$ for them?
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Re: 2.6 diesel trucks and turbo rules. July 06, 2014 04:00PM
Drop in power isn't necessarily a bad thing. We run a 2.5 class here that is no billet wheels wheel must be true 2.5 factory wheel or smaller and no altered or custom cast compressor housings. Clipped wheels, bushings, modified grooves it is all forbidden. We have been having good numbers as it is an affordable class and it rarely has any breakage as they only make around 800-900hp. The class regularly has bigger numbers than the 2.6 class where it is pretty much anything goes and stock drivetrains are hard to keep together at 1200+hp.
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