Quote:
Originally Posted by Dimman
To me the 400 rpm range says that they threw a lot of effort at a narrow operating range window, to achieve a meh BMEP number. Look at the other Toyota numbers I put up.
Consider that the BEAMS motor is port injected, has 11.1:1 CR and kicks the ass of these hypothetical FA20 brochure motor's output. 197 bhp @ 7000 (same 200 PS) but 159 lb-ft @ 4800
Now consider that the D4-S injected 2GRFSE gains 7.5% BMEP with 3.2% more rpm at power peak and 8.2% increase in BMEP with 2.1% more rpm at torque peak, over the conventional 2GRFE.
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Another thing is the 53/47 split, yet aluminum H4, firewall mounted battery and aluminum hood? Compare with a Supra's 53/47, long steel hood, long iron L6. WTF?
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That's where you're making an assumption; you don't know the torque curve beyond the specified 400 RPM. For all we know, it could drop only 1 LbFt all the way down to 3k RPM. We just don't know.
Comparing engines that are in a much higher price bracket and/or never met USA emissions regulations is not playing fair. Ok, so it's a couple percent behind the 2GR-FSE in peak BMEP, IMO it's not worth getting in a tissy about.
Let's wait until the official SAE verified specs come out and then we can make rational comparisons.
Re: Weight distribution: As I'm sure Dragonitti can agree with me here; the popularly marketed "50/50" weight distribution isn't the be-all end-all to good handling. Fantastic-handling examples of heavily biased distributions include my Lotus Exige S, Porsche 911's, even MINI's and ITR's. Everyone comes up with a different answer. Formula 1 is mandated to have an approximate 46f/54r distribution. Nissan did a study for their Z back in the day [IIRC] and came up with 52f/48r being the "ideal" distribution for an FR chassis. BMW is famous for touting/bragging 50/50, yet none of their current models have very good chassis feel, though admittedly it's not the fault of the distribution. 53f/47r is totally fine. The fact they got the rear end as light as they did with an all-aluminum engine & hood means they didn't add weight to the rear-end just to go down the BMW path of false-positive advertising.