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Bob PockrassNASCAR
NASCAR hopes that by slowing the Cup Series cars and making aerodynamic adjustments until 2019, it will have fewer followers and more overruns. He also hopes that fans will make the decision not to use restriction plates at Daytona and Talladega but use only a thicker spacer with tapered holes to limit airflow.
NASCAR will modify the current cone spacer (a 1-inch thick aluminum piece with tapered holes to limit airflow) in Cup cars to reduce the power of a 750hp to 550hp lens for 21 races – all ovals larger than 1.2 miles – next season starting after the Daytona 500.
For the 14 races of less than 2 km or on road, the same spacers as this year will be used.
The Daytona 500 2019 will work in the current Daytona / Talladega package, in which a combination of a restrictor plate and a wedge wedge has been used in recent years. Daytona will then have only one spacer, as well as the two Talladega races.
Restriction plates have been used to slow cars at these high bank superspeedways since 1987.
NASCAR sent the 2019 engine and aerodynamics rules to teams Monday night to meet its October 1 deadline. The hope is that, by not using restriction plates, which are much more troublesome for the flow of air through the engine, and by associating them with new rules increasing drag and support, the package will allow more passes and potential currents while giving drivers the answer to the acceleration that they want.
It's also a recent philosophy change from NASCAR, which often makes cars more difficult to drive.
"Let me dispel the myth that NASCAR is interested in pack racing everywhere," said NASCAR Executive Vice President Steve O Donnell on Tuesday afternoon. "It's not at all what this package is.This package should make the most of short runs, the best of superspeedways and meet in between.
"Do we want to have more cars on the first lap?" "Absolutely." Do we want a tighter race? "Absolutely." Do we expect three widths in each round? "No. The best drivers and teams will still win the race. "
The package is similar, but has more power than the 400 hp of cars during the Star Race, as well as more support and drag than during this event.
The package will include air ducts that breeze the air through the front wheel arches for 15 races (all 2km long trails except Daytona 500, Atlanta, Darlington, Homestead and both Pocono races), as well as than brake ducts for the other 21 events. . The spoiler will also increase for all races from 2.375 inches tall to 8 inches tall.
NASCAR has also created additional rules with the front splitter now exceeding 2 inches from the front of the car instead of 0.25 inches and 8 inches deep under the car, as well as new pan specifications. radiator in order to increase support towards the front. These changes could also potentially limit the areas in which teams can implement new parts to help strengthen support.
The holes in the spacer for the 750 hp tracks will remain at 1.17 inches in diameter. The 550 HP track spacer holes will have a 0.922 inch diameter.
"If you look at the aerodynamic gains that have been made [by the teams causing] turning speeds higher and higher in turns … where is the race line, the groove, the choice of [lane for] the driver becomes narrower depending on how quickly we go in turns, "said O Donnell.
"It's less a margin on which Goodyear is working to develop tires. So when we look at this issue, we think a bit like a myth that higher speeds produce better races. This is not the model we examined. what we want to see to put it back in the hands of the driver. "
With the new power goals, NASCAR hopes to increase the number of races an engine can be used for. This year, a team had to choose 13 races in which it used an engine for the second event but could change the cylinder heads, the valves and the valve springs between the events. Next year, a team must repeat the operation for 13 races, but she must also choose three additional races without replacing the cylinder heads and the valves.
By having these engine goals, this could also theoretically encourage new builders, as this would give them direction for development. The goal for NASCAR, from an aerodynamic point of view, was to develop a system to achieve the desired results while avoiding teams to build more cars specific to certain race tracks.
"When you look at that [rules] The package as it stands today for longer-term development and how can we become as relevant as possible, that does not fit, "said O. Donnell. It's where we want to go with the next generation. [of] car.
"Much of this technology will rely on the new technologies of the car, but also on the efficiency of owners, equipment manufacturers. [manufacturers], set up a motor of a more relevant power in the future, able to attract new equipment manufacturers, which is essential and make the owners we have in the sport more healthy and attract new owners. "
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