Why does 98/FRS?BRZ use premium 98 fuel?

[fistpoint]

Originally Posted by GreenMonster

Hmm... didn't realize Australia had 98 and 95. Here in the states, our highest is 93 with 91 and 89 being the other choices.

It's not comparable. Different method of measuring.

[Tromatic]

I wonder if a four-cylinder chunk of a Merlin would fin in the FR-S?

5000cc V-Twin Motorcycle Engine For Sale

I want the V-8 Hyabusa engine used in the Ariel Atom 500.

[chrisl]

Originally Posted by Guillaume

2030hp for the ultimate version of the Merlin, 75hp/l. That's LS territory 70 years earlier

It's also making that power at 3000RPM, along with a mountain of torque. HP/L isn't necessarily a good measure when talking about engines that big, since they're limited in their power output by the fact that they can't spin as fast (due to size). The top Merlins were making around 3600 ft-lb from 27 liters, which is 133 ft-lb/L. This is extremely good even for a modern forced-induction engine - it beats the GT-R and the MP4-12C, and it's comparable to the 911 turbo with overboost. Those turbo/supercharged WWII aircraft engines really were impressive in their output.

(Admittedly, it was running 130-145 octane, heavily leaded fuel)

[Tromatic]

Originally Posted by chrisl

It's also making that power at 3000RPM, along with a mountain of torque. HP/L isn't necessarily a good measure when talking about engines that big, since they're limited in their power output by the fact that they can't spin as fast (due to size). The top Merlins were making around 3600 ft-lb from 27 liters, which is 133 ft-lb/L. This is extremely good even for a modern forced-induction engine - it beats the GT-R and the MP4-12C, and it's comparable to the 911 turbo with overboost. Those turbo/supercharged WWII aircraft engines really were impressive in their output.

A Napier Sabre powered FR-S would be cool. For a few minutes.

[Joakim3]

Essentially what everyone else said.... the compression ratio in this car is insane (in regards to the norm), and despite it's "lack" of power it still makes 100hp/L which is a VERY performance orientated engine. If you want to play you gotta pay

Come to think of it... almost all of the looney hot hatches now a days make well over 100hp/L, the 15' Golf R for example makes 296hp from a 2.0 for example, that almost 150hp per liter.... which is utterly ludicras

[kevman_101]

You can`t mix NA with turbo in this kind of measure. Plus most hot hatches now have a turbo and make the 100hp\L the lazy way really. Having 100hp\L, while having enough torque to be drivable and being good on gas with no forced induction is a good accomplishment, especially in today's CO2 rules and all those regulations.

[DarkSunrise]

Yep, many turbo engines will surpass 100 hp/L easily. Different ballgame.

BTW the upcoming CLA AMG makes 355 hp out of a 2.0L turbo. That's 178 hp/L. From what I hear, it's the classic big turbo, small engine setup. Laggy, peaky, etc.