Honda haven't given up on introducing a major power unit upgrade at the Canadian Grand Prix next weekend, but admit it will be tight to deliver it on time.
The Japanese manufacturer, supplier to McLaren, hopes to introduce a major upgrade for the Montreal race, but F1 chief Yusuke Hasegawa has admitted it could be delayed, although he insists he isn't giving up on their original schedule.
"I don't give up and we are trying very hard [to be ready] but until Thursday, I can't decide," Hasegawa is quoted by Autosport.
McLaren have yet to score a single point this season and is the only team yet to do so, with racing director Eric Boullier admitting that is purely down to a lack of engine performance, and is therefore pushing for Honda's upgrade to be ready.
However Hasegawa says it will only be introduced if they can prove it will deliver a big step forward.
"We have [already seen] some performance [from the upgrade], but if it is very small, it's not worth changing engine for the next one.
"We haven't started working on the settings. If we are not confident enough to set up that specification, it will cause some driveability issues, so the settings are also important."
It's believed the upgrade is centered around the Internal Combustion Engine (ICE) which is where Honda lacks in performance compared to its rivals.
