Similarities/differences between 80s/2014 turbo engines?

[SeijaKessen]

I apologize if this should have been posted in the stickied topic regarding the 2014 engines, but I didn't want to detract from that topic.

I also apologize because I haven't read through the entire topic, so I'm not sure if this has been asked or answered at all.

How different will this upcoming turbo era be in terms of engine design compared to the 80s?

Would Renault have a distinct advantage since they had a lot of success with their motors back then?

Or is this going to be something completely different?

I have seen people also have a concern about how the engines will sound...is there any chance they will sound similar to the way they did back then?

[SeijaKessen]

Also I forgot to add...

Is there any chance we could see teams running high boost during qualifying to generate 1000+ HP and then drop the boost down for the actual race?

Or would this go against the rule for changing engine mapping?

[WhiteBlue]

There are plenty of differences. The Mark I turbos ran on special fuel - mainly tuluene - and the new turbos will run on conventional road car fuel. Power in the eighties was regulated most of the time by boost pressure (air limited) while the new turbos will be power limited by restricted fuel flow.

The new engines will also have very narrow technical specifications and will have a kind of hybrid turbocharger that has a motor generator unit attached to the turbo shaft. This unit will be used to spool up the compressor to avoid the well known turbo lag but also to convert excess turbine energy into electricity. The electricity will then be used by the rear wheel motor generator unit to push the car forward.

The engines will also use very different direct fuel injection and combustion technology developed in the last ten year mainly by LeMans cars and high power road cars. Those will be the biggest differences. There are many other things like gear boxes with higher number of gears, mono turbos and a much wider rev range. Something very different willbe the mileage of the engines. The new engines will be designed for at least 8,000 km. The old turbos were sometimes used only one time for a single lap qualifying run and then discarded or refitted.

[pgfpro]

The new F1 turbo technology I think is going to be amazing! Just like the 80's F1 turbo era it will change the way we think.

The power that was generated with the little 80's turbo engines still has a lot of gear heads wondering how they did that. Turbo technology jump leaps and bounds after the late 80's. Then it became stagnant until just a few years ago. The 2014 F1 turbo engines will hopefully be another major break through.

When I first heard of the fuel rule for 2014 I was very disappointed. I was like "why do they have to regulate the power out-put". But then after reading more about the rules on the hybrid turbocharger with a motor generator and new direct fuel injection I could see a new package that won't let us down. The "make more power we get bigger stick" ideology has been thrown out the window once again.

[gridwalker]

The new engines will be designed for at least 8,000 km. The old turbos were sometimes used only one time for a single lap qualifying run and then discarded or refitted.

That may be true, however here is an example of a McLaren TAG Turbo that was run in 7 races over 3 seasons, winning one and securing two other podiums ... ironically, it is still being used today

viewtopic.php?f=1&t=10086

[WhiteBlue]

Interesting exhibit. The turbo era was relatively diverse in terms of engine usage. Towards the end the boost pressure was severely limited which would lead to much longer running. On top we don't know if the engine had any rebuilds in the three years it was raced. I would be pretty confident that it had.