Quote:
Originally Posted by DAEMANO
It'll have a similar power to weight ratio, but the Miata's 155hp at the crank means about 131ish at the wheels. The Miata won't be a fast car or a quick car in stock form. It won't be quicker or faster in stock trim than an 86 which has a substantial amount more HP and better aero (which matters when talking about speed in a lightweight car). Around a corner on equal tires I also doubt the Miata will be faster or quicker than an 86 possibly not even on the 86's Primacys.
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First of all I think 155hp is more understated than the FA20's 200hp. We all have seen how low the dyno numbers come out to be for the twins. 155hp is a joke for a 2L engine. Toyota's old 4GR-FSE with single fuel injectors made 200hp from 2.5L and a single cam profile, and that's pretty typical of the first generation direct injection engines; barely any more peak power, but better powerband. Peak power to weight ratio should come out to around the same IMO.
But then even if you're only looking at the high rev ranges, the Miata's engine probably has similar power around 5000rpm but it's pulling way less mass. If 155hp is true, then the power just drops off faster after 6000. So on the track, the Miata will pull away at first when accelerating and then the twins might catch up a little when the Miata runs out of steam at high revs assuming 155hp peak power is correct.
I think on lower speed tracks the Miata will definitely be the faster car due to having better average acceleration. On higher speed tracks the twins have more peak power and probably slightly better aerodynamics and may have the advantage.
And remember this is the stock engine. I feel like it should be possible to coax 170+ hp out of the 2L Skyactiv engine pretty easily, considering that it already has very well designed headers.