Andrew Edwards, who oversees van Gisbergen at Triple Eight, was on hand for the shock victory on the streets of Chicago.
Speaking to Autosport, Edwards revealed that it was a late call to make the trip with van Gisbergen, after Trackhouse Racing reached out to learn more about the star Kiwi.
"It’s a bit of a surprise, the whole thing," he said. "Trackhouse kind of reached out and were asking me some questions about Shane and a little bit about how we might look at street tracks and things like that in Supercars.
"We kind of got chatting from there and then they offered to bring me over and help, in a small way, and bridge the gap between Shane and the engineers.
"And also it was just an amazing learning experience for me, just to see how they operate. It was an incredible opportunity."
Edwards has extensive experience on street circuits from his long, successful career in Supercars, something that Trackhouse tapped into during race week in Chicago.
While he wasn't directly involved in set-up decisions, and there are vast differences between how a NASCAR and a Supercar make their speed, Edwards felt he was able to contribute.
"They are quite different cars," he said. "I didn’t get involved in the set-up to a large degree, it was really kind of philosophical conversations. Trackhouse did all that work.
"I guess for them it was just thought-provoking on what we do and the set-up. They hadn’t done anything like this before and it’s a real departure from how they set up their car normally. It’s a very high downforce car but this track is very bumpy so it was a new challenge and they hadn’t been to that place before.
"I can’t say that I helped them, but at the same time if it gave them some confidence to try to go down a road, then I think we got a bit of that."
Source: Autosport