Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - Compression ratio 12.5:1. Bye-bye Super charger & Turbo build?

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- - Compression ratio 12.5:1. Bye-bye Super charger & Turbo build? (https://www.ft86club.com/forums/showthread.php?t=2132)

Without DI

BMW M3
NA V8
4.000 cc
420 PS @ 8.300 RPM
400 Nm @ 3.900 RPM
105 PS/l
12.0:1
263 g CO2/km (DCT)

Lexus LFA
NA V10
4.805 cc
560 PS @ 8.700 RPM
480 Nm @ 7.000 RPM
117 PS/l
12.0:1
379 g CO2/km

With DI

Ferrari FF
NA V12
6.260 cc
660 PS @ 8.000 RPM
680 Nm @ 6.000 RPM
105 PS/l
12.3:1
360 g CO2/km

Ferrari 458 Italia
NA V8
4.500 cc
570 PS @ 9.000 RPM
540 Nm @ 6.000 RPM
127 PS/l
12.5:1
307 g CO2/km

Porsche 911 Carrera S
NA H6
3.800 cc
400 PS @ 7.400 RPM
440 Nm @ 5.600 RPM
105 PS/l
12.5:1
205 g CO2/km (PDK)

Subaru BRZ / Toyota GT86
NA H4
2.000 cc
200 PS @ 7.000 RPM
205 Nm @ 6.600 RPM
100 PS/l
12.5:1
1xx g CO2/km

There is nothing to say about the FA20. It is an engine as good as any of the other high peformance NA engine. Without DI Subaru woud never have been able to get such spec nor to build a NA engine. It would have the be FI. For my Alfa I paid 500 € pollution taxes because it produces 198 g CO2/km. A more than two times more powerful Porsche produces slightly more. Ferrari and Porsche would never achieve such specs with so "low" emissions without DI. Toyota's D4-S DI system gives roughly 14% power increase. If the LFA had D4-S as the GT86, it would be making roughly 630 PS, 131 PS/l. Toyota didn't use DI for the LFA, because F1 also doesn't use DI. The FA20 is the one of the last NA engines.

FUTURE = FI + DI :(

http://www.motoiq.com/magazine_artic...the-world.aspx

High compression plus boost and a shot of e85! Awesome.

Quote:

Originally Posted by caeavesrsx-s (Post 95501)

http://www.motoiq.com/magazine_artic...the-world.aspx

High compression plus boost and a shot of e85! Awesome.

Hmmm how about the E85 guys attach a separate E85 tank and hook up the HPFP to it to try this out :evil:

Quote:

Originally Posted by Levi (Post 95284)

The FR-s/GT86/86/BRZ is expect to be around 160g/km compared to the near enough identically powerful and heavy Clio RS200 (with no DI) at 195g/km.

Quote:

Originally Posted by caeavesrsx-s (Post 95501)

http://www.motoiq.com/magazine_artic...the-world.aspx

High compression plus boost and a shot of e85! Awesome.

Ford has had Ecoboost prototypes evaluating this concept for years... shoot me a PM if you are interested in reading more. They used port injectors for gasoline and direct injection for E85. The idea is to use this as a replacement for a heavy duty diesel application, because the diesels are so expensive and require a lot of emissions equipment.