NickHolt Posted December 9, 2014 Report Share Posted December 9, 2014 Lots of rear weight creates a large polar moment of inertia.... which means that once you get the back end of the car loose, it will stay hung out longer than a car that has less rear weight percentage. This is both good and bad. It's really beneficial in the sense that it doesn't take much to get the rear end to come around. Pushing the front end around the track is not a good thing, so lots of dirt track teams make sure they have lots of rear weight to reduce the chances of pushing the front end. A high percentage of rear weight can also help with forward bite since the rear tires are carrying more of the weight of the car. Sort of like putting sandbags in the rear of a car that is stuck in snow or mud to help get some traction. However, the slicker the track gets, less and less rear weight percentage is needed. Once the track is either rubbered up or dry slick, what you really are looking for is a soft asphalt setup. A good many of the soft asphalt setup I have worked with utilize around 50.5 percent rear weight percentage. Hmmm. Nick Link to comment Share on other sites More sharing options...
top_shelf_12 Posted December 9, 2014 Report Share Posted December 9, 2014 Free advice Link to comment Share on other sites More sharing options...
racer027 Posted December 9, 2014 Report Share Posted December 9, 2014 Top shelf, that means to have over 53% rear weight you must over come the amount of weight that is in the front which obviously includes the engine. Most cars struggle to get close to 50%, so 53% is a very big difference and still allows for significate rear weight percentage. THIS is good news Stephan it should level playing field some if im lucky i get 47-49% without finding gray area (Joseph 01) Link to comment Share on other sites More sharing options...
racer027 Posted December 9, 2014 Report Share Posted December 9, 2014 I think STS should adopt these rules! With the exception of disc brake rear-ends,disc aren't mandatory but are an option.everyone's cars will fit, the engine packages allow a guy to run his current cam set-up without any changes. I think sos should also...man would this make it simple oh but some would have to take shut off valve out versus pulling cams no brainer Link to comment Share on other sites More sharing options...
BobbyJack Posted December 10, 2014 Report Share Posted December 10, 2014 THE PURESTOCK I HAVE IS ONLY 48% REAR AT 3380 TOTAL. MOST PURESTOCKS CANT GET 53% REAR WITHOUT BEING OVERWEIGHT UNLESS WE BUILD NEW RACECARS. NO TIME OR MONEY FOR THAT. MY LIMITED LATEMODEL IS 55% REAR. I LIKE THE STP RULES Link to comment Share on other sites More sharing options...
Bigdogracing777 Posted December 10, 2014 Report Share Posted December 10, 2014 We way 3480 with 53 thanks to the set up master you did a great job seat time is all we need!!! Oh and sponsors we were told by the boss we can't race u til we get containment seat Hans!!! Link to comment Share on other sites More sharing options...
top_shelf_12 Posted December 10, 2014 Report Share Posted December 10, 2014 After the back straight fiasco Saturday, I'm considering at least one of the two myself. Link to comment Share on other sites More sharing options...
Tim8Pure Posted December 10, 2014 Report Share Posted December 10, 2014 Will there be a 1%-2% tolerance for mud build up or will this be pre race? The days of 47%-48% rear weight, front running cars are over in my opinion. I can see not allowing aluminum bodies but a guy that does his homework shouldn't get penalized for having something that works well for them. I will follow this thread to see what the finalization of rules are but plan on being at this race either way in a Pure Stock with weight moved back to the front somewhere.... Link to comment Share on other sites More sharing options...
Danielsen Motorsports Posted December 10, 2014 Report Share Posted December 10, 2014 It will be post race and trust me when I say we intend to have zero mud buildup and what mud that falls off between the track and tech we are not worried about. Link to comment Share on other sites More sharing options...
sm002 Posted December 10, 2014 Report Share Posted December 10, 2014 hopefull the track is just like it was at the havoc and there was no mud build up that night Link to comment Share on other sites More sharing options...
arob Posted December 10, 2014 Report Share Posted December 10, 2014 Hope it is not so dry it is slow.Track at Havoc was good. Link to comment Share on other sites More sharing options...
Tim8Pure Posted December 10, 2014 Report Share Posted December 10, 2014 Dry = FAST Link to comment Share on other sites More sharing options...
WaerRacing00 Posted December 10, 2014 Report Share Posted December 10, 2014 Dry = wrecks at sos Link to comment Share on other sites More sharing options...
SouthTxPromotions Posted December 10, 2014 Author Report Share Posted December 10, 2014 The good and strong survive. Link to comment Share on other sites More sharing options...
WaerRacing00 Posted December 10, 2014 Report Share Posted December 10, 2014 Correct...no matter if start in back or front good drivers make it on any track/adjust to any surface Link to comment Share on other sites More sharing options...
Bluebayouracing21 Posted December 11, 2014 Report Share Posted December 11, 2014 So the local leaf cars are getting penalized because metrics can't get more than 53% with out sitting in the back seat. Well good luck with your big race.I got 60% rear weight in my car Link to comment Share on other sites More sharing options...
bresee7183 Posted December 11, 2014 Report Share Posted December 11, 2014 I'm not here to argue with anyone but if y'all change the rules thinking I won't come y'all are wrong . I matched all Yalls rules for that race an the rules of the Texas Grand so y'all can bash me all y'all would like, I race the pure/factory stock class becouse it's what I can afford. If y'all think y'all can change the rules to make it to where I cant come, I will get a old car out the weeds an come down there still an race , I love the track that's why I come there y'all think I have some crazy rear % when y'all are wrong, I did gain rear % to come down there but that is because y'all have 3300 lb battle tanks down there , but on a normal race night I do only have 53% so Yalls rule about that is about right , I'm done on this topic an I WIll see y'all at the south Texas shoot out in 2015 Chase Bresee Link to comment Share on other sites More sharing options...
SouthTxPromotions Posted December 11, 2014 Author Report Share Posted December 11, 2014 This is for South Texas Nationals not the South Texas Shootout. Two different events two different tracks. Link to comment Share on other sites More sharing options...
Bluebayouracing21 Posted December 11, 2014 Report Share Posted December 11, 2014 That a way bresee but they'll do something to try and keep yall factory stocks from coming there scared of you guys but come on I hope you come ill be just to watch!! Link to comment Share on other sites More sharing options...
bresee7183 Posted December 11, 2014 Report Share Posted December 11, 2014 I have steal body for my car so I will be there for this race as well an getting the rear % is fine with me so is there anything else I need to do to make y'all happy sir?!? Just curious Link to comment Share on other sites More sharing options...
SouthTxPromotions Posted December 11, 2014 Author Report Share Posted December 11, 2014 Absolutely, the advise I give you is what I give to everyone. Do your homework so you go home happy and come have fun. Link to comment Share on other sites More sharing options...
arob Posted December 11, 2014 Report Share Posted December 11, 2014 Got to hand it to Mr. Bresee. Instead of staying home he decided to do what it takes to comply and it sounds like he has to do a lot.I like your spirit.Good luck to you sir. Link to comment Share on other sites More sharing options...
SouthTxPromotions Posted December 11, 2014 Author Report Share Posted December 11, 2014 Absolutely. Going to be a massive amount of cars and we will even consider bumping the purse as the interests grow. Link to comment Share on other sites More sharing options...
top_shelf_12 Posted December 11, 2014 Report Share Posted December 11, 2014 Keep us updated, I'll promote the event on Facebook too. Link to comment Share on other sites More sharing options...
Tim8Pure Posted December 11, 2014 Report Share Posted December 11, 2014 There is a $3000 to win show for Pure/FS in the making at Battleground around that same time, hopefully not on the same weekend!!!! Link to comment Share on other sites More sharing options...
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