The grip additive often known as PJ1 has been utilized to the Texas Motor Speedway for its NASCAR Cup races, with the intent of permitting vehicles to take completely different traces across the oval course due to the improved traction increased up the banking.
Given it has been designed to work with the NASCAR tyres provided by Goodyear, the PJ1 floor didn’t yield the identical impact for the Firestone tyres utilized in IndyCar and largely compelled drivers into taking a single lane all through the races.
This lowered the alternatives to cross, most notably when eventual Pato O’Ward spent the early laps of the second race wherein he would go on to claim his maiden IndyCar victory unable to cross Will Energy because the Australian caught rigidly to the within line.
Rahal, who completed third in that race, defined that the PJ1 floor was “like ice” and estimated that it yielded a drop of round “20 to 25%” in grip for the Firestone tyre.
“It is simply slippery,” Rahal defined. “We won’t actually contact it. Clearly did not reapply it for the weekend, [but it] does not actually matter.
“It is a synthetic grip, I assume, for the [NASCAR] Cup vehicles they use to make it a bit racier for them. It simply did not work with us.”
“I do know IndyCar tried their finest to do the tyre dragging and every little thing else, not essentially apply rubber, however peel that PJ1 off and get it out.
“As you possibly can see, it’s so darkish, stains the floor so terribly. While you stroll on it, you possibly can really feel it. It is like ice – roughly from Firestone numbers [it has] 20 to 25% much less grip the minute you contact the darkish stuff.”
Graham Rahal, Rahal Letterman Lanigan Racing Honda
Photograph by: Barry Cantrell / Motorsport Images
Rahal added that the floor bought higher all through the weekend however, with a lowered quantity of monitor time owing to poor climate situations within the space over the weekend, felt that IndyCar wanted extra time to rubber the floor in.
The Rahal Letterman Lanigan driver additionally steered that sporting away the floor would be sure that the Texas circuit may gain advantage from nearer racing and permit drivers to take a couple of lane into every nook.
“I feel it bought higher as guys by chance ran half a groove too excessive,” he mentioned.
“However nonetheless it might take a number of working I feel to get that to actually peel up.
“The optimistic of what we noticed as we speak was there was a number of lifting, even some braking into flip one, downshifting, all that type of stuff.
“If over time they do not reapply that PJ1, they let it slowly put on off, I feel this place can turn into a two-plus-lane monitor once more. Going to take some time to get there, take individuals which are courageous sufficient to attempt it, or attempt it accidentally.
“[But] it is not superb for us.”