"Our new Spec 4 worked properly, the result from the data shows as we expected.
"At the moment we are happy, we will analyse the data and try to optimise the calibration to improve performance as much as we can for Monza."
Asked if he hoped its lingering Saturday deficit would be reduced now,
Tanabe said: "I hope so. But other PU manufacturers have started to apply their latest specs.
"We haven't analysed the difference between their previous performance and [Spa].
"We will try to find out their improvement compared to our improvement but they don't wait for us.
"I hope we close the gap, but in reality from [Spa's] qualifying result we see a big gap between Ferrari and Mercedes - I don't know if they [Mercedes] had a problem in qualifying.
"I hope to close the gap, but it's not easy."
Red Bull team boss
Christian Horner described Honda's data from Spa as "encouraging" and thinks the new unit has delivered "what is expected".
https://www.autosport.com/f1/news/14577 ... new-engine