Talk about peaky power

"YSI-what can brown do for you" (ysi-what-can-brown-do-for-you) 05/02/2014 at 17:43 • Filed to: None

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It makes about 400hp at 8400RPM and then 800 at 9700RPM. Engine is M12, the one posted below.

lone_liberal > YSI-what can brown do for you 05/02/2014 at 17:50

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So this is what you see out of your windshield as you accelerate from 8400 to 9700 RPM?

YSI-what can brown do for you > lone_liberal 05/02/2014 at 17:53

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I imagine it feels a little faster than that!!!

CRider > YSI-what can brown do for you 05/02/2014 at 17:55

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How is it possible for a motor to make peak torque at over 9500 RPM?

Opposite Locksmith > YSI-what can brown do for you 05/02/2014 at 17:56

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I've always wondered what a powerband like that would feel like actually. I've driven an s2000 so I imagine that x3

Lekker > YSI-what can brown do for you 05/02/2014 at 17:56

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I had to look up what the engine went on. Disappointed its not the USS Enterprise or something

YSI-what can brown do for you > CRider 05/02/2014 at 17:59

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It is like magic of sorts! I wonder what this thing is like out of turns. Most of the torque comes after 9k!

CRider > YSI-what can brown do for you 05/02/2014 at 18:13

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I think they are counting on it just not slowing down for corners to keep it in the power band.

Racescort666 > CRider 05/02/2014 at 18:22

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It would make sense if it's a turbo motor. I've seen turbo Honda motors and turbo sport bike motors that have HP and torque curves like that. If your boost threshold is really high (like 5k rpm) then you won't start to see a lot of torque until after that.

Racescort666 > YSI-what can brown do for you 05/02/2014 at 18:22

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Is it a turbo motor?

YSI-what can brown do for you > Racescort666 05/02/2014 at 18:23

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Yup, way old F1 turbo car. Some time in the 80s obviously. Turbos have gotten much better now, and we get much nicer power bands.

Racescort666 > YSI-what can brown do for you 05/02/2014 at 18:52

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I think the understanding of turbo systems has gotten better too. I've got about a third of an article written on turbos that I'll post to Oppo next week. Hopefully it gets FP'd because it covers turbocharging from an engineering standpoint.

TwoFortified > YSI-what can brown do for you 05/02/2014 at 20:00

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Ah. F1 car. My first thought was "What the hell are you driving that does 9700RPM? A crotch rocket?".

...I mean, now that I think about it a bit, you said the thing makes 800HP, and I can think of a couple Japanese engines that, with some fresh internals, might be able to make that...

flame-suiting up due to my ignorance.

YSI-what can brown do for you > TwoFortified 05/02/2014 at 20:04

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I mean you aren't to far off. This was a 1.5l turbocharged BMW inline 4. While it made a tame 800 hp. Later down the road it made an enormous 1400hp. Still a 1.5l engine though. So basically it was like 950hp per liter. It did surge a lot though, sometimes up to 75ish psi. In any case. This engine is powerful

BaconSandwich is tasty. > YSI-what can brown do for you 05/02/2014 at 21:58

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That's... insane.

CRider > Racescort666 05/02/2014 at 22:46

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Ah yes, I forgot about the turbo.

samssun > CRider 05/05/2014 at 05:09

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Better question: do those lines cross at 5252? If not, something's wrong...