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Originally posted by 220-9er:
...Before the restrictions they ran a new engine for every race and often a different engine for qualifying.

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When the restrictor plates became the rule on the longer tracks, the mechanics managed to come up with a hybrid material to make them out of, which disintegrated in the air stream when the motor was running fast. Again, a couple quick laps, then the disintegrated material would cause the motor to blow. Plates used during the race met NASCAR's rules.

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Originally posted by newtoSig765:

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Originally posted by 220-9er:
...Before the restrictions they ran a new engine for every race and often a different engine for qualifying.

I seem to remember that teams like Ferrari had a minimum of seven motors per car: One in the car, three in crates, and three at the factory being rebuilt.

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Originally posted by 220-9er:

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When the restrictor plates became the rule on the longer tracks, the mechanics managed to come up with a hybrid material to make them out of, which disintegrated...

I'm not sure where that came from.
The officials provide the plates and monitor the installation and can inspect them anytime they want.

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Originally posted by 220-9er:
I didn't say it actually did cut costs. That was the idea when they made the rule.
The engine reliability has improved a bunch however. Just look at a results sheet from 15-30 years ago and see how many fell DNF'ed due to engine failure. Before the restrictions they ran a new engine for every race and often a different engine for qualifying.

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Carlos Sainz has signed a deal to join Renault, Motorsport.com has learned, in a move that will trigger a series of dominos to secure McLaren the French car manufacturer’s engine for 2018.

While news of McLaren’s progress in its efforts to switch from Honda engines has not been forthcoming in public, behind-the-scenes developments appear to show it has succeeded.

High level sources have confirmed that Sainz’s deal has been agreed as part of a sweetener for Renault to end its Toro Rosso contract early.

With the Sainz deal agreed, that has opened the way for Toro Rosso to finalise a switch to Honda engines next year, which in turn ensures McLaren gets hold of its supply of customer Renaults for 2018.

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Originally posted by P250UA5:
Appears to be confirmed?

https://www.motorsport.com/f1/...en-honda-951146/amp/

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Carlos Sainz has signed a deal to join Renault, Motorsport.com has learned, in a move that will trigger a series of dominos to secure McLaren the French car manufacturer’s engine for 2018.

While news of McLaren’s progress in its efforts to switch from Honda engines has not been forthcoming in public, behind-the-scenes developments appear to show it has succeeded.

High level sources have confirmed that Sainz’s deal has been agreed as part of a sweetener for Renault to end its Toro Rosso contract early.

With the Sainz deal agreed, that has opened the way for Toro Rosso to finalise a switch to Honda engines next year, which in turn ensures McLaren gets hold of its supply of customer Renaults for 2018.

More at the above link. Goes on to speculate that Pierre Gasly will possibly get the STR seat. Also for STR to go Honda power in 2018 & McLaren to go to Renault PUs.

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It's the end of an era. After three seasons of heartache and turmoil between McLaren and Honda, the two have officially decided to end their F1 partnership after 2017.

Constant issues have plagued McLaren from competing since the pair rejoined in 2015, failing to mimic the success the two had in Formula One in the 1980s. It's understood that Honda will supply engines to Toro Rosso next season, with McLaren and Renault signing a deal that lasts through the 2020 season.

Sources close to the deal notified Motorsport.comof the split, a decision that was made after the duo failed to capture a win or podium since 2015. This was viewed as a necessary move by many within the McLaren organization with aggravated officials and star driver Fernando Alonso expressing their frustration repeatedly.

This, in turn, leads McLaren to its only logical partner, Renault. It was reported last week that the two were in talks of a deal—and after Carlos Sainz Jr. signed with Renault in a long and convoluted trade, it's now been made official.

The new partnership will end after the 2020 season, just short of when Formula One intends to release new engine regulations in 2021. This will potentially put McLaren on par with rival Red Bull, a team that also uses Renault engine supply and is third in this year's Constructors' Title race.

It's understood that McLaren could potentially develop its own powerplantsonce this engine regulation cycle expires, depending on its future with the French manufacturer. Though marginally more competitive than Honda, Renault has proven to be somewhat unreliable in 2017, with both members from its works team as well as its customer team, Red Bull, suffering from mechanical issues.

The decision to drop Honda in favor of Renault could help to land an extension with Alonso, McLaren hopes, as the team said earlier in the year that it would "do everything" to keep him on board after 2017. The double world champion has made note of his irritation with the McLaren-Honda relationship, so this could be a step in the right direction for the two. Alonso announced earlier on that he will make his decision by the end of September.

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could help to land an extension with Alonso,

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Toro Rosso has agreed a three-year deal with Honda for a supply of the Japanese manufacturer's Formula 1 engines, starting next season, Autosport has learned.

Earlier this year Red Bull and Honda first began talks regarding an engine supply for Toro Rosso, which has run Renault power this season.

Honda was keen to take on a second team after its Sauber arrangement fell through, but discussions over Toro Rosso broke down during the summer.

However, McLaren's desire to end its relationship with Honda revived the deal, with McLaren requiring Toro Rosso to part with Renault to free up a supply of the French manufacturer's engines.

Following extensive talks an agreement has been reached by all parties, though official confirmation is not expected until later in the Singapore Grand Prix weekend.

Sources close to the deal have confirmed to Autosport that Toro Rosso has agreed a three-year deal from 2018 with Honda, taking it to the end of the current F1 engine regulations cycle at the end of 2020.

While preparations for next year's car are already well under way, a decision has at least come earlier than when Toro Rosso agreed a switch from Renault to Ferrari power in December 2015 for the following year.

Toro Rosso's switch to Honda power means the outfit will start its third consecutive season with a different supplier next year.

When talks with Toro Rosso began, Marko told Honda chief Masashi Yamamoto he was interested in Red Bull switching in the future if Honda improves its performance sufficiently.

With the Toro Rosso deal now done, such a tie-up with the senior team in the future remains a strong option - especially as Autosport has learned Renault is working to end its Red Bull deal at the end of 2018.